{"id":30529,"date":"2026-07-08T13:25:41","date_gmt":"2026-07-08T12:25:41","guid":{"rendered":"https:\/\/piseo.fr\/?p=30529"},"modified":"2026-07-08T14:14:07","modified_gmt":"2026-07-08T13:14:07","slug":"performance-and-optical-safety-of-led-therapy-masks","status":"publish","type":"post","link":"https:\/\/piseo.fr\/en\/optical-laboratory\/performance-and-optical-safety-of-led-therapy-masks\/","title":{"rendered":"Performance and optical safety of LED therapy masks"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">A light therapy mask, also known as an LED mask, is an optoelectronic device designed to expose the skin to specific light radiation, typically in the visible and near-infrared spectrums. These devices fall within the field of photobiomodulation (PBM), which involves using specific wavelengths to induce biological responses at the cellular level.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In this context, the performance and optical safety of a light therapy mask depend on controlling several key optical parameters: wavelength, energy flux (also known as irradiance), spatial uniformity, and delivered dose (fluence).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Only tests conducted in a specialized laboratory can accurately determine actual performance values and ensure the optical safety of these LED masks.<\/p>\n\n\n\n<details class=\"wp-block-stackable-accordion stk-block-accordion stk-inner-blocks stk-block-content stk-block stk-6c51152 is-style-plain\" data-block-id=\"6c51152\"><style>.stk-6c51152 {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<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-6d33792 stk-block-accordion__content\" data-v=\"4\" data-block-id=\"6d33792\"><style>.stk-6d33792-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-6d33792-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-6d33792-inner-blocks\">\n<div class=\"wp-block-stackable-text stk-block-text stk-block stk-60f5e98\" data-block-id=\"60f5e98\"><p class=\"stk-block-text__text\">The light therapy mask market is experiencing strong growth, characterized by significant heterogeneity among available products. Many devices have significant technical limitations, both in terms of performance and safety.<\/p><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">In this context, in-depth optical characterization is essential to:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Verify the actual performance of the LED system (energy irradiance, uniformity, spectrum, dose)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ensure the optical safety of users<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Verify the consistency of the manufacturer\u2019s technical data<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ensure safe market launch<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Conduct product benchmarks against the competition<\/p>\n<\/div><\/div><\/div>\n\n\n\n<summary class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-f7e6401 stk--container-small stk-block-accordion__heading\" data-v=\"4\" data-block-id=\"f7e6401\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-f7e6401-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-f7e6401-inner-blocks\">\n<div class=\"wp-block-stackable-icon-label stk-block-icon-label stk-block stk-173556a\" data-block-id=\"173556a\"><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-f3edee7\" id=\"why-conduct-laboratory-testing-on-led-masks\" data-block-id=\"f3edee7\"><h2 class=\"stk-block-heading__text\">Why conduct laboratory testing on LED masks?<\/h2><\/div>\n\n\n\n<div class=\"wp-block-stackable-icon stk-block-icon stk-block stk-32de6af\" data-block-id=\"32de6af\"><span class=\"stk--svg-wrapper\"><div class=\"stk--inner-svg\"><svg style=\"height:0;width:0\"><defs><linearGradient id=\"linear-gradient-32de6af\" x1=\"0\" x2=\"100%\" y1=\"0\" y2=\"0\"><stop offset=\"0%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-32-de-6-af-color-1)\"><\/stop><stop offset=\"100%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-32-de-6-af-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<\/details>\n\n\n\n<details class=\"wp-block-stackable-accordion stk-block-accordion stk-inner-blocks stk-block-content stk-block stk-2f64629 is-style-plain\" data-block-id=\"2f64629\"><style>.stk-2f64629 {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-773aa11 stk--container-small stk-block-accordion__heading\" data-v=\"4\" data-block-id=\"773aa11\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-773aa11-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-773aa11-inner-blocks\">\n<div class=\"wp-block-stackable-icon-label stk-block-icon-label stk-block stk-758ad86\" data-block-id=\"758ad86\"><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-dff7e70\" id=\"measure-optical-performance-on-light-therapy-masks\" data-block-id=\"dff7e70\"><h2 class=\"stk-block-heading__text\">Measure optical performance on light therapy masks<\/h2><\/div>\n\n\n\n<div class=\"wp-block-stackable-icon stk-block-icon stk-block stk-ecfa7aa\" data-block-id=\"ecfa7aa\"><span class=\"stk--svg-wrapper\"><div class=\"stk--inner-svg\"><svg style=\"height:0;width:0\"><defs><linearGradient id=\"linear-gradient-ecfa7aa\" x1=\"0\" x2=\"100%\" y1=\"0\" y2=\"0\"><stop offset=\"0%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-ecfa-7-aa-color-1)\"><\/stop><stop offset=\"100%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-ecfa-7-aa-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-3af8c08 stk-block-accordion__content\" data-v=\"4\" data-block-id=\"3af8c08\"><style>.stk-3af8c08-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-3af8c08-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-3af8c08-inner-blocks\">\n<div class=\"wp-block-stackable-text stk-block-text stk-block stk-8a53cfd\" data-block-id=\"8a53cfd\"><p class=\"stk-block-text__text\">The effectiveness of these masks is based on measurable and comparable optical performance evaluated using test methods established by PIS\u00c9O and specifically designed to meet user needs.<\/p><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">These methods include, in particular:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Mapping the uniformity of radiation across different areas of the face (eye contour, cheeks, nasolabial folds, chin)<\/li>\n\n\n\n<li>Measurement of energy irradiance (W\/m\u00b2) : Average (across all areas of the face), Maximum &amp; Minimum<\/li>\n\n\n\n<li>Peak irradiance (W\/m\u00b2\/nm)<\/li>\n\n\n\n<li>Spectral characterization of the device<\/li>\n\n\n\n<li>Fluence in J\/cm\u00b2<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">These tests are conducted under normal usage conditions and at varying distances depending on how users wear these masks.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/piseo.fr\/wp-content\/uploads\/2026\/07\/image-1-1-768x1024.jpg\" alt=\"LED MASK\" class=\"wp-image-30541\" srcset=\"https:\/\/piseo.fr\/wp-content\/uploads\/2026\/07\/image-1-1-768x1024.jpg 768w, https:\/\/piseo.fr\/wp-content\/uploads\/2026\/07\/image-1-1-225x300.jpg 225w, https:\/\/piseo.fr\/wp-content\/uploads\/2026\/07\/image-1-1-1152x1536.jpg 1152w, https:\/\/piseo.fr\/wp-content\/uploads\/2026\/07\/image-1-1-1536x2048.jpg 1536w, https:\/\/piseo.fr\/wp-content\/uploads\/2026\/07\/image-1-1-150x200.jpg 150w, https:\/\/piseo.fr\/wp-content\/uploads\/2026\/07\/image-1-1-300x400.jpg 300w, https:\/\/piseo.fr\/wp-content\/uploads\/2026\/07\/image-1-1-600x800.jpg 600w, https:\/\/piseo.fr\/wp-content\/uploads\/2026\/07\/image-1-1-696x928.jpg 696w, https:\/\/piseo.fr\/wp-content\/uploads\/2026\/07\/image-1-1-1392x1856.jpg 1392w, https:\/\/piseo.fr\/wp-content\/uploads\/2026\/07\/image-1-1-1068x1424.jpg 1068w, https:\/\/piseo.fr\/wp-content\/uploads\/2026\/07\/image-1-1-scaled.jpg 1920w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">Beyond the average values, analysis of irradiance peaks and spatial distribution is essential. Mapping allows for the identification of potential exposure heterogeneities and the evaluation of the consistency of the treatment delivered across the entire face.<\/p>\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-17650c6 is-style-plain\" data-block-id=\"17650c6\"><style>.stk-17650c6 {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-4245afe stk--container-small stk-block-accordion__heading\" data-v=\"4\" data-block-id=\"4245afe\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-4245afe-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-4245afe-inner-blocks\">\n<div class=\"wp-block-stackable-icon-label stk-block-icon-label stk-block stk-c52eacd\" data-block-id=\"c52eacd\"><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-051f750\" id=\"photobiological-risk-of-led-masks-en-iec-62471\" data-block-id=\"051f750\"><h2 class=\"stk-block-heading__text\">Photobiological Risk of LED Masks (EN\/IEC 62471)<\/h2><\/div>\n\n\n\n<div class=\"wp-block-stackable-icon stk-block-icon stk-block stk-1aa7131\" data-block-id=\"1aa7131\"><span class=\"stk--svg-wrapper\"><div class=\"stk--inner-svg\"><svg style=\"height:0;width:0\"><defs><linearGradient id=\"linear-gradient-1aa7131\" x1=\"0\" x2=\"100%\" y1=\"0\" y2=\"0\"><stop offset=\"0%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-1-aa-7131-color-1)\"><\/stop><stop offset=\"100%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-1-aa-7131-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-5bf428e stk-block-accordion__content\" data-v=\"4\" data-block-id=\"5bf428e\"><style>.stk-5bf428e-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-5bf428e-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-5bf428e-inner-blocks\">\n<div class=\"wp-block-stackable-text stk-block-text stk-block stk-80d3569\" data-block-id=\"80d3569\"><p class=\"stk-block-text__text\">Since these masks are intended for direct use on the skin and near the eyes, optical safety is a major concern.<\/p><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">PIS\u00c9O conducts accredited testing in accordance with the EN\/IEC 62471 standard to assess photobiological risk and verify that the devices are safe for users under normal conditions.<\/p>\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-547450c is-style-plain\" data-block-id=\"547450c\"><style>.stk-547450c {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-b18cf51 stk--container-small stk-block-accordion__heading\" data-v=\"4\" data-block-id=\"b18cf51\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-b18cf51-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-b18cf51-inner-blocks\">\n<div class=\"wp-block-stackable-icon-label stk-block-icon-label stk-block stk-1b166b2\" data-block-id=\"1b166b2\"><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-dbbc190\" id=\"regulations-for-led-masks-and-standard-requirements\" data-block-id=\"dbbc190\"><h2 class=\"stk-block-heading__text\">Regulations for LED Masks and Standard Requirements<\/h2><\/div>\n\n\n\n<div class=\"wp-block-stackable-icon stk-block-icon stk-block stk-1e4dd45\" data-block-id=\"1e4dd45\"><span class=\"stk--svg-wrapper\"><div class=\"stk--inner-svg\"><svg style=\"height:0;width:0\"><defs><linearGradient id=\"linear-gradient-1e4dd45\" x1=\"0\" x2=\"100%\" y1=\"0\" y2=\"0\"><stop offset=\"0%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-1-e-4-dd-45-color-1)\"><\/stop><stop offset=\"100%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-1-e-4-dd-45-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-7b5e1cc stk-block-accordion__content\" data-v=\"4\" data-block-id=\"7b5e1cc\"><style>.stk-7b5e1cc-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-7b5e1cc-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-7b5e1cc-inner-blocks\">\n<div class=\"wp-block-stackable-text stk-block-text stk-block stk-69463ab\" data-block-id=\"69463ab\"><p class=\"stk-block-text__text\">Placing a light therapy mask on the market requires compliance with European product safety directives. This is based on various standards. The CE marking, which indicates compliance with these directives, is a regulatory requirement; however, it is based on a manufacturer\u2019s declaration and does not in itself constitute proof of safety.<\/p><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Optical performance does not need to be tested, and the mask\u2019s effectiveness for the user therefore does not need to be demonstrated for it to be marketed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The technical requirements for demonstrating regulatory compliance are based on specific standards covering various aspects:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>the EN 60335 standard, relating to the electrical safety of household appliances;<\/li>\n\n\n\n<li>the EN 62471 standard, dedicated to the assessment of the photobiological risk of light sources;<\/li>\n\n\n\n<li>the IEC 60601 standard, applicable to medical devices or similar products, particularly those intended for home use;<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">In certain markets, such as North America, demonstrating regulatory compliance through test results is mandatory.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The FDA (Food and Drug Administration) has established strict specifications that must be met in order to market the device in this market.<\/p>\n<\/div><\/div><\/div>\n<\/details>\n\n\n\n<p class=\"wp-block-paragraph\">Therefore, conducting tests at the<a href=\"https:\/\/piseo.fr\/en\/optical-laboratory-posts\/\" type=\"page\" id=\"27007\"> PIS\u00c9O laboratory<\/a> is an essential step in demonstrating the product\u2019s compliance and effectiveness. The testing methodology\u2014which includes irradiance mapping, average, minimum, and maximum values, spectral analysis, and optical safety tests\u2014enables the production of technical reports that are immediately actionable.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">You can therefore rely on PIS\u00c9O\u2019s expertise and the capabilities of its optical laboratory to demonstrate that your device meets the <a href=\"https:\/\/www.fda.gov\/\" type=\"link\" id=\"https:\/\/www.fda.gov\/\">FDA\u2019s requirements<\/a> for photobiomodulation (PBM) devices.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A light therapy mask, also known as an LED mask, is an optoelectronic device designed to expose the skin to specific light radiation, typically in the visible and near-infrared spectrums. These devices fall within the field of photobiomodulation (PBM), which involves using specific wavelengths to induce biological responses at the cellular level. In this context, [&hellip;]<\/p>\n","protected":false},"author":171492485,"featured_media":30537,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","footnotes":""},"categories":[7000,7002],"tags":[],"class_list":["post-30529","post","type-post","status-publish","format-standard","has-post-thumbnail","category-optical-laboratory","category-photometry-laboratory"],"featured_image_src":"https:\/\/piseo.fr\/wp-content\/uploads\/2026\/07\/masque-luminotherapie-LED.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\/2026\/07\/masque-luminotherapie-LED.jpg",1280,720,false],"thumbnail":["https:\/\/piseo.fr\/wp-content\/uploads\/2026\/07\/masque-luminotherapie-LED-150x150.jpg",150,150,true],"medium":["https:\/\/piseo.fr\/wp-content\/uploads\/2026\/07\/masque-luminotherapie-LED-300x169.jpg",300,169,true],"medium_large":["https:\/\/piseo.fr\/wp-content\/uploads\/2026\/07\/masque-luminotherapie-LED-768x432.jpg",696,392,true],"large":["https:\/\/piseo.fr\/wp-content\/uploads\/2026\/07\/masque-luminotherapie-LED-1024x576.jpg",696,392,true],"1536x1536":["https:\/\/piseo.fr\/wp-content\/uploads\/2026\/07\/masque-luminotherapie-LED.jpg",1280,720,false],"2048x2048":["https:\/\/piseo.fr\/wp-content\/uploads\/2026\/07\/masque-luminotherapie-LED.jpg",1280,720,false],"td_150x0":["https:\/\/piseo.fr\/wp-content\/uploads\/2026\/07\/masque-luminotherapie-LED-150x84.jpg",150,84,true],"td_150x0_retina":["https:\/\/piseo.fr\/wp-content\/uploads\/2026\/07\/masque-luminotherapie-LED-300x169.jpg",300,169,true],"td_218x150":["https:\/\/piseo.fr\/wp-content\/uploads\/2026\/07\/masque-luminotherapie-LED-218x150.jpg",218,150,true],"td_218x150_retina":["https:\/\/piseo.fr\/wp-content\/uploads\/2026\/07\/masque-luminotherapie-LED-436x300.jpg",436,300,true],"td_300x0":["https:\/\/piseo.fr\/wp-content\/uploads\/2026\/07\/masque-luminotherapie-LED-300x169.jpg",300,169,true],"td_300x0_retina":["https:\/\/piseo.fr\/wp-content\/uploads\/2026\/07\/masque-luminotherapie-LED-600x338.jpg",600,338,true],"td_324x400":["https:\/\/piseo.fr\/wp-content\/uploads\/2026\/07\/masque-luminotherapie-LED-324x400.jpg",324,400,true],"td_324x400_retina":["https:\/\/piseo.fr\/wp-content\/uploads\/2026\/07\/masque-luminotherapie-LED-648x720.jpg",648,720,true],"td_485x360":["https:\/\/piseo.fr\/wp-content\/uploads\/2026\/07\/masque-luminotherapie-LED-485x360.jpg",485,360,true],"td_485x360_retina":["https:\/\/piseo.fr\/wp-content\/uploads\/2026\/07\/masque-luminotherapie-LED-970x720.jpg",970,720,true],"td_696x0":["https:\/\/piseo.fr\/wp-content\/uploads\/2026\/07\/masque-luminotherapie-LED-696x392.jpg",696,392,true],"td_696x0_retina":["https:\/\/piseo.fr\/wp-content\/uploads\/2026\/07\/masque-luminotherapie-LED.jpg",1280,720,false],"td_1068x0":["https:\/\/piseo.fr\/wp-content\/uploads\/2026\/07\/masque-luminotherapie-LED-1068x601.jpg",1068,601,true],"td_1068x0_retina":["https:\/\/piseo.fr\/wp-content\/uploads\/2026\/07\/masque-luminotherapie-LED.jpg",1280,720,false],"td_1920x0":["https:\/\/piseo.fr\/wp-content\/uploads\/2026\/07\/masque-luminotherapie-LED.jpg",1280,720,false],"td_1920x0_retina":["https:\/\/piseo.fr\/wp-content\/uploads\/2026\/07\/masque-luminotherapie-LED.jpg",1280,720,false],"ultp_layout_landscape_large":["https:\/\/piseo.fr\/wp-content\/uploads\/2026\/07\/masque-luminotherapie-LED-1200x720.jpg",1200,720,true],"ultp_layout_landscape":["https:\/\/piseo.fr\/wp-content\/uploads\/2026\/07\/masque-luminotherapie-LED-870x570.jpg",870,570,true],"ultp_layout_portrait":["https:\/\/piseo.fr\/wp-content\/uploads\/2026\/07\/masque-luminotherapie-LED-600x720.jpg",600,720,true],"ultp_layout_square":["https:\/\/piseo.fr\/wp-content\/uploads\/2026\/07\/masque-luminotherapie-LED-600x600.jpg",600,600,true]},"post_excerpt_stackable_v2":"<p>A light therapy mask, also known as an LED mask, is an optoelectronic device designed to expose the skin to specific light radiation, typically in the visible and near-infrared spectrums. These devices fall within the field of photobiomodulation (PBM), which involves using specific wavelengths to induce biological responses at the cellular level. In this context, the performance and optical safety of a light therapy mask depend on controlling several key optical parameters: wavelength, energy flux (also known as irradiance), spatial uniformity, and delivered dose (fluence). Only tests conducted in a specialized laboratory can accurately determine actual performance values and ensure&hellip;<\/p>\n","category_list_v2":"<a href=\"https:\/\/piseo.fr\/en\/optical-laboratory\/\" rel=\"category tag\">Optical laboratory<\/a>, <a href=\"https:\/\/piseo.fr\/en\/optical-laboratory\/photometry-laboratory\/\" rel=\"category tag\">Photometry laboratory<\/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>Performance and optical safety of LED therapy masks - PIS\u00c9O<\/title>\n<meta name=\"description\" content=\"Test your LED face mask in our optical laboratory and demonstrate that it meets FDA standards requirements..\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link 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light therapy mask, also known as an LED mask, is an optoelectronic device designed to expose the skin to specific light radiation, typically in the visible and near-infrared spectrums. These devices fall within the field of photobiomodulation (PBM), which involves using specific wavelengths to induce biological responses at the cellular level. In this context,&hellip;","_links":{"self":[{"href":"https:\/\/piseo.fr\/en\/wp-json\/wp\/v2\/posts\/30529","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/piseo.fr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/piseo.fr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/piseo.fr\/en\/wp-json\/wp\/v2\/users\/171492485"}],"replies":[{"embeddable":true,"href":"https:\/\/piseo.fr\/en\/wp-json\/wp\/v2\/comments?post=30529"}],"version-history":[{"count":6,"href":"https:\/\/piseo.fr\/en\/wp-json\/wp\/v2\/posts\/30529\/revisions"}],"predecessor-version":[{"id":30552,"href":"https:\/\/piseo.fr\/en\/wp-json\/wp\/v2\/posts\/30529\/revisions\/30552"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/piseo.fr\/en\/wp-json\/wp\/v2\/media\/30537"}],"wp:attachment":[{"href":"https:\/\/piseo.fr\/en\/wp-json\/wp\/v2\/media?parent=30529"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/piseo.fr\/en\/wp-json\/wp\/v2\/categories?post=30529"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/piseo.fr\/en\/wp-json\/wp\/v2\/tags?post=30529"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}