{"id":2786,"date":"2020-07-06T12:35:54","date_gmt":"2020-07-06T11:35:54","guid":{"rendered":"https:\/\/piseo.fr\/?p=2786"},"modified":"2024-09-10T13:50:13","modified_gmt":"2024-09-10T12:50:13","slug":"light-guide-design","status":"publish","type":"post","link":"https:\/\/piseo.fr\/en\/optical-consulting-engineering-posts\/light-guide-design\/","title":{"rendered":"LED light guide design"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Used for display and signage applications, lighting solutions combining light guide and LED have become essential.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Their ability to emphasize lines and create signatures make them particularly attractive to designers and architects. Their low thickness and robustness allow them to be easily integrated into many systems.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In addition, their exceptional ability to guide light makes it possible to produce large luminous surfaces with excellent uniformity.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In these guides, LEDs are placed on the side and not under the surface to be illuminated. This arrangement makes it possible to reduce the number of LEDs while obtaining large, uniformly luminous surfaces in an extremely compact volume.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The reduction in the number of LEDs results in lower manufacturing costs for the manufacturer and a reduction in the system\u2019s power consumption for the end customer. Indeed, to obtain a uniformity of 80% on the surface over such a small distance using LEDs placed under the surface, much more effort is needed than in the case of tangential lighting.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The low thickness of the guides (only a few millimeters) allows them to be easily integrated into many display and signage systems.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">However, the design and production of light guides to achieve the desired luminance, uniformity, and illuminance require first-rate know-how and technical resources. Thanks to their vast industrial experience, their leading optical simulation tools, and their <a href=\"https:\/\/piseo.fr\/en\/optical-laboratory-posts\/the-photometry-laboratory\/\">photometry laboratory<\/a>, PIS\u00c9O experts can reliably and efficiently support you in developing all types of lighting systems based on light guides.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a id=\"_msocom_1\"><\/a><\/p>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<details class=\"wp-block-stackable-accordion stk-block-accordion stk-inner-blocks stk-block-content stk-block stk-cdd9cc2 is-style-plain\" data-block-id=\"cdd9cc2\"><style>.stk-cdd9cc2{border-style:solid !important;border-color:#dfdad1 !important;border-top-width:0px !important;border-right-width:0px !important;border-bottom-width:1px !important;border-left-width:0px !important;padding-bottom:24px !important}<\/style>\n<summary class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-7dad0c7 stk--container-small stk-block-accordion__heading\" data-v=\"4\" data-block-id=\"7dad0c7\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-7dad0c7-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-7dad0c7-inner-blocks\">\n<div class=\"wp-block-stackable-icon-label stk-block-icon-label stk-block stk-aa9d5db\" data-block-id=\"aa9d5db\"><div class=\"stk-row stk-inner-blocks stk-block-content\">\n<div class=\"wp-block-stackable-heading stk-block-heading stk-block-heading--v2 stk-block stk-58b3ef0\" id=\"luminance-uniformity-from-the-light-guide\" data-block-id=\"58b3ef0\"><h2 class=\"stk-block-heading__text stk-block-heading--use-theme-margins\">Luminance uniformity from the light guide<\/h2><\/div>\n\n\n\n<div class=\"wp-block-stackable-icon stk-block-icon stk-block stk-f1bf4b7\" data-block-id=\"f1bf4b7\"><span class=\"stk--svg-wrapper\"><div class=\"stk--inner-svg\"><svg style=\"height:0;width:0\"><defs><linearGradient id=\"linear-gradient-f1bf4b7\" x1=\"0\" x2=\"100%\" y1=\"0\" y2=\"0\"><stop offset=\"0%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-f-1-bf-4-b-7-color-1)\"><\/stop><stop offset=\"100%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-f-1-bf-4-b-7-color-2)\"><\/stop><\/linearGradient><\/defs><\/svg><svg data-prefix=\"fas\" data-icon=\"chevron-down\" class=\"svg-inline--fa fa-chevron-down fa-w-14\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 448 512\" aria-hidden=\"true\" width=\"32\" height=\"32\"><path fill=\"currentColor\" d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/div><\/span><\/div>\n<\/div><\/div>\n<\/div><\/div><\/summary>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-e986001 stk-block-accordion__content\" data-v=\"4\" data-block-id=\"e986001\"><style>.stk-e986001-container{padding-top:0px !important;padding-right:0px !important;padding-bottom:0px !important;padding-left:0px !important}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-e986001-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-e986001-inner-blocks\">\n<p class=\"wp-block-paragraph\">From a photometric point of view, these guides\u2019 ability to conduct light makes it possible to obtain high luminances on large luminous surfaces. The luminance uniformity obtained is also excellent, with values above 80%.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">However, the design of the optical systems is crucial and requires particular expertise to obtain such results at an acceptable cost.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Only a suitable combination of the correct LEDs, their operating points, materials, and surface treatments in a suitable architecture will make it possible to achieve the expected quality.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">PIS\u00c9O has the skills and tools to reliably design, simulate, model, optimize, and characterize lighting systems using light guides, as well as any other system using photonic technologies.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For this, we rely on:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022 the expertise of our engineers (Optics, Mechatronic Systems, Materials),<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022 our optical design and simulation tools, such as the ZEMAX Optic Studio and LightTools<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022 our proprietary algorithms<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022 our extensive materials database containing optical properties characterized in the laboratory<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022 our COFRAC-accredited characterization laboratory (scope available at <a href=\"http:\/\/www.cofrac.fr\">www.cofrac.fr<\/a>). <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Our Westboro Photonics P1230U 12.3 MP video-luminancemetry&nbsp; camera and its lenses allow us, for example, to carry out 2-dimensional luminance measurements quickly and precisely. The luminance level and uniformity of any luminous surface can be characterized.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><a id=\"_msocom_1\"><\/a><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"864\" height=\"161\" src=\"https:\/\/piseo.fr\/wp-content\/uploads\/2024\/04\/Carto-luminance.jpg\" alt=\"d\u00e9tecter les points chauds sur un guide de lumi\u00e8re\" class=\"wp-image-29620\" style=\"width:864px;height:auto\" srcset=\"https:\/\/piseo.fr\/wp-content\/uploads\/2024\/04\/Carto-luminance.jpg 864w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/04\/Carto-luminance-300x56.jpg 300w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/04\/Carto-luminance-768x143.jpg 768w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/04\/Carto-luminance-150x28.jpg 150w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/04\/Carto-luminance-600x112.jpg 600w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/04\/Carto-luminance-696x130.jpg 696w\" sizes=\"auto, (max-width: 864px) 100vw, 864px\" \/><figcaption class=\"wp-element-caption\"><em>Example of luminance mapping to detect hot spots on a light guide \u2013 Source PIS\u00c9O<\/em><\/figcaption><\/figure>\n<\/div><\/div><\/div><\/div>\n<\/details>\n\n\n\n<details class=\"wp-block-stackable-accordion stk-block-accordion stk-inner-blocks stk-block-content stk-block stk-050d441 is-style-plain\" data-block-id=\"050d441\"><style>.stk-050d441{border-style:solid !important;border-color:#dfdad1 !important;border-top-width:0px !important;border-right-width:0px !important;border-bottom-width:1px !important;border-left-width:0px !important;padding-bottom:24px !important}<\/style>\n<summary class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-ddea416 stk--container-small stk-block-accordion__heading\" data-v=\"4\" data-block-id=\"ddea416\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-ddea416-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-ddea416-inner-blocks\">\n<div class=\"wp-block-stackable-icon-label stk-block-icon-label stk-block stk-023270f\" data-block-id=\"023270f\"><div class=\"stk-row stk-inner-blocks stk-block-content\">\n<div class=\"wp-block-stackable-heading stk-block-heading stk-block-heading--v2 stk-block stk-49061ed\" id=\"light-guide-optical-design-and-simulation\" data-block-id=\"49061ed\"><h2 class=\"stk-block-heading__text stk-block-heading--use-theme-margins\">Light guide optical design and simulation<\/h2><\/div>\n\n\n\n<div class=\"wp-block-stackable-icon stk-block-icon stk-block stk-49f359e\" data-block-id=\"49f359e\"><span class=\"stk--svg-wrapper\"><div class=\"stk--inner-svg\"><svg style=\"height:0;width:0\"><defs><linearGradient id=\"linear-gradient-49f359e\" x1=\"0\" x2=\"100%\" y1=\"0\" y2=\"0\"><stop offset=\"0%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-49-f-359-e-color-1)\"><\/stop><stop offset=\"100%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-49-f-359-e-color-2)\"><\/stop><\/linearGradient><\/defs><\/svg><svg data-prefix=\"fas\" data-icon=\"chevron-down\" class=\"svg-inline--fa fa-chevron-down fa-w-14\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 448 512\" aria-hidden=\"true\" width=\"32\" height=\"32\"><path fill=\"currentColor\" d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/div><\/span><\/div>\n<\/div><\/div>\n<\/div><\/div><\/summary>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-8b5819b stk-block-accordion__content\" data-v=\"4\" data-block-id=\"8b5819b\"><style>.stk-8b5819b-container{padding-top:0px !important;padding-right:0px !important;padding-bottom:0px !important;padding-left:0px !important}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-8b5819b-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-8b5819b-inner-blocks\">\n<p class=\"wp-block-paragraph\">Light guides have several advantages: ease of integration, optimum performance with few LEDs leading to lower energy consumption than a multi-LED system, ease of production by machining or plastic injection, and aesthetic rendering, which are particularly appreciated by designers, manufacturers, and architects. However, a light guide obeys optical physical laws that must be respected to obtain all the advantages stated above.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"344\" src=\"https:\/\/piseo.fr\/wp-content\/uploads\/2024\/04\/Regles-design-guide-de-lumiere-jpeg-1024x344.jpg\" alt=\"Principe de fonctionnement optique des guides de lumi\u00e8re\" class=\"wp-image-29623\" srcset=\"https:\/\/piseo.fr\/wp-content\/uploads\/2024\/04\/Regles-design-guide-de-lumiere-jpeg-1024x344.jpg 1024w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/04\/Regles-design-guide-de-lumiere-jpeg-300x101.jpg 300w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/04\/Regles-design-guide-de-lumiere-jpeg-768x258.jpg 768w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/04\/Regles-design-guide-de-lumiere-jpeg-150x50.jpg 150w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/04\/Regles-design-guide-de-lumiere-jpeg-600x201.jpg 600w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/04\/Regles-design-guide-de-lumiere-jpeg-696x234.jpg 696w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/04\/Regles-design-guide-de-lumiere-jpeg-1068x359.jpg 1068w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/04\/Regles-design-guide-de-lumiere-jpeg.jpg 1352w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\"><em>Principe de fonctionnement optique des guides de lumi\u00e8re \u2013 Source PIS\u00c9O<\/em><\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">The first step \u2013 coupling the source with the guide \u2013 is crucial to avoid losses between the LED and the first input face. The characteristics of the LED and its operating point must, therefore, be judiciously chosen to obtain the maximum emitted flux. The guiding of light in matter is made possible by the phenomenon of total internal reflection. Depending on the guide material and its immersive environment, a limiting angle defines whether the ray will be reflected or transmitted.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"373\" height=\"273\" src=\"https:\/\/piseo.fr\/wp-content\/uploads\/2024\/05\/visuel-indice.jpg\" alt=\"visuel-indice\" class=\"wp-image-29710\" style=\"width:280px;height:auto\" srcset=\"https:\/\/piseo.fr\/wp-content\/uploads\/2024\/05\/visuel-indice.jpg 373w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/05\/visuel-indice-300x220.jpg 300w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/05\/visuel-indice-150x110.jpg 150w\" sizes=\"auto, (max-width: 373px) 100vw, 373px\" \/><figcaption class=\"wp-element-caption\"><em>Snell-Descartes law applied to the design of light guides \u2013 Source PIS\u00c9O<\/em><\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">If this condition is not adhered to, then the light ray escapes. This happens when the curvature is too pronounced or where there are surface defects (roughness, bubbles, etc.).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Conversely, to obtain a uniform light rendering along a guide, a well-designed diffusing surface that disrupts the light guidance properties is required. This makes it possible to extract the light in a pre-planned manner and obtain a uniform light rendering along a guide.&nbsp; For this purpose, we use the phenomenon of volume extraction (particles in the material) or surface extraction (surface texturing).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The choice of material is also critical. It must take into account the length of the guide, its geometry, and the mechanical constraints linked to the use of the product in which it is integrated (resistance to shocks, UV rays, etc.). Our extensive knowledge of the optical properties of materials, our independent database with relevant references, and our privileged relationships with many compounders&nbsp; allow us to quickly choose the correct materials, taking into account several criteria such as uniformity, luminance, transmittance according to length, volume diffusion, etc.)<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><a id=\"_msocom_2\"><\/a><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"399\" src=\"https:\/\/piseo.fr\/wp-content\/uploads\/2024\/05\/rendu-pouvoir-diffusant-1024x399.png\" alt=\"rendu-pouvoir-diffusant\" class=\"wp-image-29695\" style=\"width:745px;height:auto\" srcset=\"https:\/\/piseo.fr\/wp-content\/uploads\/2024\/05\/rendu-pouvoir-diffusant-1024x399.png 1024w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/05\/rendu-pouvoir-diffusant-300x117.png 300w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/05\/rendu-pouvoir-diffusant-768x299.png 768w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/05\/rendu-pouvoir-diffusant-150x58.png 150w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/05\/rendu-pouvoir-diffusant-600x234.png 600w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/05\/rendu-pouvoir-diffusant-696x271.png 696w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/05\/rendu-pouvoir-diffusant-1068x416.png 1068w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/05\/rendu-pouvoir-diffusant.png 1292w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\"><em>Example of rendering of the diffusing power of a material contained in the PIS\u00c9O database<\/em><\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">Our <a href=\"https:\/\/piseo.fr\/en\/optical-consulting-engineering-posts\/our-technical-means\/optical-design-and-simulation-tools\/\">optical design and simulation tools <\/a>are able to integrate all the parameters mentioned above and thus accurately report the performance achievable by the optical solutions based on light guides developed by PIS\u00c9O engineers.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"507\" src=\"https:\/\/piseo.fr\/wp-content\/uploads\/2024\/04\/Simu-eclairement-guide-SEB-1024x507.jpg\" alt=\"optical design of a light guide\" class=\"wp-image-29630\" style=\"width:892px;height:auto\" srcset=\"https:\/\/piseo.fr\/wp-content\/uploads\/2024\/04\/Simu-eclairement-guide-SEB-1024x507.jpg 1024w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/04\/Simu-eclairement-guide-SEB-300x149.jpg 300w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/04\/Simu-eclairement-guide-SEB-768x380.jpg 768w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/04\/Simu-eclairement-guide-SEB-150x74.jpg 150w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/04\/Simu-eclairement-guide-SEB-600x297.jpg 600w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/04\/Simu-eclairement-guide-SEB-696x345.jpg 696w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/04\/Simu-eclairement-guide-SEB-1068x529.jpg 1068w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/04\/Simu-eclairement-guide-SEB-324x160.jpg 324w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/04\/Simu-eclairement-guide-SEB-648x320.jpg 648w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/04\/Simu-eclairement-guide-SEB.jpg 1183w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\"><em>Example of simulation of the illumination produced by a light guide designed by PIS\u00c9O<\/em><\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">PIS\u00c9O experts have fully mastered these principles and are thus able to design the appropriate optical architectures and simulate their visual performance with their tools such as Lighttools or Zemax OpticStudio.<\/p>\n<\/div><\/div><\/div>\n<\/details>\n<\/div><\/div>\n\n\n\n<details class=\"wp-block-stackable-accordion stk-block-accordion stk-inner-blocks stk-block-content stk-block stk-91ba9d5 is-style-plain\" data-block-id=\"91ba9d5\"><style>.stk-91ba9d5{border-style:solid !important;border-color:#dfdad1 !important;border-top-width:0px !important;border-right-width:0px !important;border-bottom-width:1px !important;border-left-width:0px !important;padding-bottom:24px !important}<\/style>\n<summary class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-9fdc4dc stk--container-small stk-block-accordion__heading\" data-v=\"4\" data-block-id=\"9fdc4dc\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-9fdc4dc-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-9fdc4dc-inner-blocks\">\n<div class=\"wp-block-stackable-icon-label stk-block-icon-label stk-block stk-f69be32\" data-block-id=\"f69be32\"><div class=\"stk-row stk-inner-blocks stk-block-content\">\n<div class=\"wp-block-stackable-heading stk-block-heading stk-block-heading--v2 stk-block stk-de77df0\" id=\"color-mix\" data-block-id=\"de77df0\"><h2 class=\"stk-block-heading__text\">Color mix<\/h2><\/div>\n\n\n\n<div class=\"wp-block-stackable-icon stk-block-icon stk-block stk-17f6e59\" data-block-id=\"17f6e59\"><span class=\"stk--svg-wrapper\"><div class=\"stk--inner-svg\"><svg style=\"height:0;width:0\"><defs><linearGradient id=\"linear-gradient-17f6e59\" x1=\"0\" x2=\"100%\" y1=\"0\" y2=\"0\"><stop offset=\"0%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-17-f-6-e-59-color-1)\"><\/stop><stop offset=\"100%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-17-f-6-e-59-color-2)\"><\/stop><\/linearGradient><\/defs><\/svg><svg data-prefix=\"fas\" data-icon=\"chevron-down\" class=\"svg-inline--fa fa-chevron-down fa-w-14\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 448 512\" aria-hidden=\"true\" width=\"32\" height=\"32\"><path fill=\"currentColor\" d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/div><\/span><\/div>\n<\/div><\/div>\n<\/div><\/div><\/summary>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-9f8c369 stk-block-accordion__content\" data-v=\"4\" data-block-id=\"9f8c369\"><style>.stk-9f8c369-container{padding-top:0px !important;padding-right:0px !important;padding-bottom:0px !important;padding-left:0px !important}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-9f8c369-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-9f8c369-inner-blocks\">\n<p class=\"wp-block-paragraph\">HMIs that incorporate a light guide often require the ability to display different colors. In this case, their coupling with colored LEDs, discrete or \u201cpackaged\u201d and controlled by appropriate electronics and algorithms, is an excellent way to create a multitude of colors for these devices. However, achieving consistent color results on visible surfaces remains a challenge. In reality, only a specifically designed and carefully studied optical architecture, allowing efficient coupling of LED luminous flux and impeccable color mixing, is capable of producing a superior quality result.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">PIS\u00c9O\u2019s optical engineers benefit from extensive experience in the design of light guides for color mixing. They know how to take into account the mechanical and aesthetic constraints of the products and the manufacturability of the components to best meet your objectives.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"320\" src=\"https:\/\/piseo.fr\/wp-content\/uploads\/2024\/05\/conception-guide-lumiere-1-1024x320.jpg\" alt=\"conception-guide-lumiere-1\" class=\"wp-image-29714\" srcset=\"https:\/\/piseo.fr\/wp-content\/uploads\/2024\/05\/conception-guide-lumiere-1-1024x320.jpg 1024w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/05\/conception-guide-lumiere-1-300x94.jpg 300w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/05\/conception-guide-lumiere-1-768x240.jpg 768w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/05\/conception-guide-lumiere-1-1536x480.jpg 1536w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/05\/conception-guide-lumiere-1-150x47.jpg 150w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/05\/conception-guide-lumiere-1-600x188.jpg 600w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/05\/conception-guide-lumiere-1-696x218.jpg 696w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/05\/conception-guide-lumiere-1-1392x435.jpg 1392w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/05\/conception-guide-lumiere-1-1068x334.jpg 1068w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/05\/conception-guide-lumiere-1.jpg 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Mixing colors with a light guide &#8211; PIS\u00c9O<\/figcaption><\/figure>\n<\/div><\/div><\/div>\n<\/details>\n\n\n\n<details class=\"wp-block-stackable-accordion stk-block-accordion stk-inner-blocks stk-block-content stk-block stk-bb7f2d6 is-style-plain\" data-block-id=\"bb7f2d6\"><style>.stk-bb7f2d6{border-style:solid !important;border-color:#dfdad1 !important;border-top-width:0px !important;border-right-width:0px !important;border-bottom-width:1px !important;border-left-width:0px !important;padding-bottom:24px !important}<\/style>\n<summary class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-6b30c5a stk--container-small stk-block-accordion__heading\" data-v=\"4\" data-block-id=\"6b30c5a\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-6b30c5a-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-6b30c5a-inner-blocks\">\n<div class=\"wp-block-stackable-icon-label stk-block-icon-label stk-block stk-81e7594\" data-block-id=\"81e7594\"><div class=\"stk-row stk-inner-blocks stk-block-content\">\n<div class=\"wp-block-stackable-heading stk-block-heading stk-block-heading--v2 stk-block stk-5f941d1\" id=\"light-guide-prototype\" data-block-id=\"5f941d1\"><h2 class=\"stk-block-heading__text\">Light guide prototype<\/h2><\/div>\n\n\n\n<div class=\"wp-block-stackable-icon stk-block-icon stk-block stk-934e97f\" data-block-id=\"934e97f\"><span class=\"stk--svg-wrapper\"><div class=\"stk--inner-svg\"><svg style=\"height:0;width:0\"><defs><linearGradient id=\"linear-gradient-934e97f\" x1=\"0\" x2=\"100%\" y1=\"0\" y2=\"0\"><stop offset=\"0%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-934-e-97-f-color-1)\"><\/stop><stop offset=\"100%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-934-e-97-f-color-2)\"><\/stop><\/linearGradient><\/defs><\/svg><svg data-prefix=\"fas\" data-icon=\"chevron-down\" class=\"svg-inline--fa fa-chevron-down fa-w-14\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 448 512\" aria-hidden=\"true\" width=\"32\" height=\"32\"><path fill=\"currentColor\" d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/div><\/span><\/div>\n<\/div><\/div>\n<\/div><\/div><\/summary>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-315cf97 stk-block-accordion__content\" data-v=\"4\" data-block-id=\"315cf97\"><style>.stk-315cf97-container{padding-top:0px !important;padding-right:0px !important;padding-bottom:0px !important;padding-left:0px !important}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-315cf97-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-315cf97-inner-blocks\">\n<p class=\"wp-block-paragraph\">Thanks to their network of trusted partners, PIS\u00c9O engineers are able to produce prototypes of light guides to validate their design. Like all optical components, to be sufficiently representative, these prototypes must be made with great care. This is why PIS\u00c9O offers to manage the entire process.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The light guides are then integrated into a system, allowing the pairing of the light source(s), generally LEDs wired onto printed circuits. The functional assembly is tested in the PIS\u00c9O laboratory. Precise measurements of luminous flux, illuminance light distribution, luminance, and colorimetric parameters can thus be carried out to check the prototype\u2019s performance.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"708\" src=\"https:\/\/piseo.fr\/wp-content\/uploads\/2024\/04\/Guide-lumiere-proto-1024x708.jpg\" alt=\"test of a light guide prototype\" class=\"wp-image-29634\" style=\"width:808px;height:auto\" srcset=\"https:\/\/piseo.fr\/wp-content\/uploads\/2024\/04\/Guide-lumiere-proto-1024x708.jpg 1024w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/04\/Guide-lumiere-proto-300x208.jpg 300w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/04\/Guide-lumiere-proto-768x531.jpg 768w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/04\/Guide-lumiere-proto-1536x1063.jpg 1536w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/04\/Guide-lumiere-proto-2048x1417.jpg 2048w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/04\/Guide-lumiere-proto-150x104.jpg 150w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/04\/Guide-lumiere-proto-218x150.jpg 218w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/04\/Guide-lumiere-proto-436x300.jpg 436w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/04\/Guide-lumiere-proto-600x415.jpg 600w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/04\/Guide-lumiere-proto-696x482.jpg 696w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/04\/Guide-lumiere-proto-1392x963.jpg 1392w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/04\/Guide-lumiere-proto-1068x739.jpg 1068w, https:\/\/piseo.fr\/wp-content\/uploads\/2024\/04\/Guide-lumiere-proto-1920x1328.jpg 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\"><em><em>Test of a light guide prototype designed by PIS\u00c9O<\/em><\/em><\/figcaption><\/figure>\n<\/div><\/div><\/div><\/div>\n<\/details>\n\n\n\n<p class=\"wp-block-paragraph\">If you wish to integrate lighting systems based on efficient and qualitative light guides into your products, be like our many satisfied customers, and do not hesitate to trust the optical engineers at PIS\u00c9O.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Used for display and signage applications, lighting solutions combining light guide and LED have become essential. Their ability to emphasize lines and create signatures make them particularly attractive to designers and architects. Their low thickness and robustness allow them to be easily integrated into many systems. In addition, their exceptional ability to guide light makes [&hellip;]<\/p>\n","protected":false},"author":171492485,"featured_media":29717,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","footnotes":""},"categories":[7004,7006],"tags":[],"class_list":["post-2786","post","type-post","status-publish","format-standard","has-post-thumbnail","category-optical-consulting-engineering-posts","category-our-skills"],"featured_image_src":"https:\/\/piseo.fr\/wp-content\/uploads\/2020\/06\/conception-guide-lumiere-2-1.jpg","author_info":{"display_name":"piseophotonics","author_link":"https:\/\/piseo.fr\/en\/author\/piseophotonics\/"},"featured_image_urls_v2":{"full":["https:\/\/piseo.fr\/wp-content\/uploads\/2020\/06\/conception-guide-lumiere-2-1.jpg",1920,600,false],"thumbnail":["https:\/\/piseo.fr\/wp-content\/uploads\/2020\/06\/conception-guide-lumiere-2-1-150x150.jpg",150,150,true],"medium":["https:\/\/piseo.fr\/wp-content\/uploads\/2020\/06\/conception-guide-lumiere-2-1-300x94.jpg",300,94,true],"medium_large":["https:\/\/piseo.fr\/wp-content\/uploads\/2020\/06\/conception-guide-lumiere-2-1-768x240.jpg",696,218,true],"large":["https:\/\/piseo.fr\/wp-content\/uploads\/2020\/06\/conception-guide-lumiere-2-1-1024x320.jpg",696,218,true],"1536x1536":["https:\/\/piseo.fr\/wp-content\/uploads\/2020\/06\/conception-guide-lumiere-2-1-1536x480.jpg",1536,480,true],"2048x2048":["https:\/\/piseo.fr\/wp-content\/uploads\/2020\/06\/conception-guide-lumiere-2-1.jpg",1920,600,false],"td_150x0":["https:\/\/piseo.fr\/wp-content\/uploads\/2020\/06\/conception-guide-lumiere-2-1-150x47.jpg",150,47,true],"td_150x0_retina":["https:\/\/piseo.fr\/wp-content\/uploads\/2020\/06\/conception-guide-lumiere-2-1-300x94.jpg",300,94,true],"td_218x150":["https:\/\/piseo.fr\/wp-content\/uploads\/2020\/06\/conception-guide-lumiere-2-1-218x150.jpg",218,150,true],"td_218x150_retina":["https:\/\/piseo.fr\/wp-content\/uploads\/2020\/06\/conception-guide-lumiere-2-1-436x300.jpg",436,300,true],"td_300x0":["https:\/\/piseo.fr\/wp-content\/uploads\/2020\/06\/conception-guide-lumiere-2-1-300x94.jpg",300,94,true],"td_300x0_retina":["https:\/\/piseo.fr\/wp-content\/uploads\/2020\/06\/conception-guide-lumiere-2-1-600x188.jpg",600,188,true],"td_324x400":["https:\/\/piseo.fr\/wp-content\/uploads\/2020\/06\/conception-guide-lumiere-2-1-324x400.jpg",324,400,true],"td_324x400_retina":["https:\/\/piseo.fr\/wp-content\/uploads\/2020\/06\/conception-guide-lumiere-2-1-648x600.jpg",648,600,true],"td_485x360":["https:\/\/piseo.fr\/wp-content\/uploads\/2020\/06\/conception-guide-lumiere-2-1-485x360.jpg",485,360,true],"td_485x360_retina":["https:\/\/piseo.fr\/wp-content\/uploads\/2020\/06\/conception-guide-lumiere-2-1-970x600.jpg",970,600,true],"td_696x0":["https:\/\/piseo.fr\/wp-content\/uploads\/2020\/06\/conception-guide-lumiere-2-1-696x218.jpg",696,218,true],"td_696x0_retina":["https:\/\/piseo.fr\/wp-content\/uploads\/2020\/06\/conception-guide-lumiere-2-1-1392x435.jpg",1392,435,true],"td_1068x0":["https:\/\/piseo.fr\/wp-content\/uploads\/2020\/06\/conception-guide-lumiere-2-1-1068x334.jpg",1068,334,true],"td_1068x0_retina":["https:\/\/piseo.fr\/wp-content\/uploads\/2020\/06\/conception-guide-lumiere-2-1.jpg",1920,600,false],"td_1920x0":["https:\/\/piseo.fr\/wp-content\/uploads\/2020\/06\/conception-guide-lumiere-2-1.jpg",1920,600,false],"td_1920x0_retina":["https:\/\/piseo.fr\/wp-content\/uploads\/2020\/06\/conception-guide-lumiere-2-1.jpg",1920,600,false],"ultp_layout_landscape_large":["https:\/\/piseo.fr\/wp-content\/uploads\/2020\/06\/conception-guide-lumiere-2-1-1200x600.jpg",1200,600,true],"ultp_layout_landscape":["https:\/\/piseo.fr\/wp-content\/uploads\/2020\/06\/conception-guide-lumiere-2-1-870x570.jpg",870,570,true],"ultp_layout_portrait":["https:\/\/piseo.fr\/wp-content\/uploads\/2020\/06\/conception-guide-lumiere-2-1-600x600.jpg",600,600,true],"ultp_layout_square":["https:\/\/piseo.fr\/wp-content\/uploads\/2020\/06\/conception-guide-lumiere-2-1-600x600.jpg",600,600,true]},"post_excerpt_stackable_v2":"<p>Used for display and signage applications, lighting solutions combining light guide and LED have become essential. Their ability to emphasize lines and create signatures make them particularly attractive to designers and architects. Their low thickness and robustness allow them to be easily integrated into many systems. In addition, their exceptional ability to guide light makes it possible to produce large luminous surfaces with excellent uniformity. In these guides, LEDs are placed on the side and not under the surface to be illuminated. This arrangement makes it possible to reduce the number of LEDs while obtaining large, uniformly luminous surfaces in&hellip;<\/p>\n","category_list_v2":"<a href=\"https:\/\/piseo.fr\/en\/optical-consulting-engineering-posts\/\" rel=\"category tag\">Optical consulting and engineering<\/a>, <a href=\"https:\/\/piseo.fr\/en\/optical-consulting-engineering-posts\/our-skills\/\" rel=\"category tag\">Our skills<\/a>","author_info_v2":{"name":"piseophotonics","url":"https:\/\/piseo.fr\/en\/author\/piseophotonics\/"},"comments_num_v2":"0 comments","yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>LED light guide design - PIS\u00c9O<\/title>\n<meta name=\"description\" content=\"PISEO has the skills and tools to design, simulate, model, optimize and reliably characterize light systems using light guide (uniformity...)\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, 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