{"id":25481,"date":"2023-05-22T08:11:28","date_gmt":"1999-01-01T00:00:00","guid":{"rendered":"https:\/\/piseo.fr\/?p=25481"},"modified":"2024-09-10T13:39:21","modified_gmt":"2024-09-10T12:39:21","slug":"test-bench-for-endoscope","status":"publish","type":"post","link":"https:\/\/piseo.fr\/en\/optical-consulting-engineering-posts\/optical-benches\/test-bench-for-endoscope\/","title":{"rendered":"Test bench for endoscope"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Specialized in the development, production, and certification of high-tech products for endoscopic applications, this customer wished to benefit from PIS\u00c9O\u2019s <a href=\"https:\/\/piseo.fr\/en\/optical-consulting-and-engineering\/skills\/\">skills<\/a> in developing <a href=\"https:\/\/piseo.fr\/en\/optical-consulting-and-engineering\/optical-benches\/\">tailor-made optical test bench<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Test benches are essential tools for measuring the optical performance of medical devices such as illumination systems used particularly in medical applications, more specifically surgery.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">After devising a light projector integrated into an endoscope-type surgical robot, the customer wanted to measure the relative illumination delivered by this projector during its manufacture. PIS\u00c9O designed and produced a dedicated optical measurement bench for this purpose.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">To meet the customer&#8217;s needs, PIS\u00c9O designed the measurement bench&nbsp; to manage the plurality of lighting profiles produced by the projector. The projector uses LED-type light sources that have various emission lobe angles, but also laser-type light sources whose beam is collimated. PIS\u00c9O therefore had to consider all the wavelengths between 400 nm and 850 nm emitted by these different light sources to design and build this test bench.<\/p>\n\n\n\n<details class=\"wp-block-stackable-accordion stk-block-accordion stk-inner-blocks stk-block-content stk-block stk-2b6c517 is-style-plain\" data-block-id=\"2b6c517\"><style>.stk-2b6c517{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-e96927c stk--container-small stk-block-accordion__heading\" data-v=\"4\" data-block-id=\"e96927c\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-e96927c-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-e96927c-inner-blocks\">\n<div class=\"wp-block-stackable-icon-label stk-block-icon-label stk-block stk-d30c705\" data-block-id=\"d30c705\"><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-8515c22\" id=\"specification-and-opto-mechanical-design-of-the-test-bench\" data-block-id=\"8515c22\"><h2 class=\"stk-block-heading__text\">Specification and opto-mechanical design of the test bench<\/h2><\/div>\n\n\n\n<div class=\"wp-block-stackable-icon stk-block-icon stk-block stk-dfc3f14\" data-block-id=\"dfc3f14\"><span class=\"stk--svg-wrapper\"><div class=\"stk--inner-svg\"><svg style=\"height:0;width:0\"><defs><linearGradient id=\"linear-gradient-dfc3f14\" x1=\"0\" x2=\"100%\" y1=\"0\" y2=\"0\"><stop offset=\"0%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-dfc-3-f-14-color-1)\"><\/stop><stop offset=\"100%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-dfc-3-f-14-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-3ad0606 stk-block-accordion__content\" data-v=\"4\" data-block-id=\"3ad0606\"><style>.stk-3ad0606-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-3ad0606-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-3ad0606-inner-blocks\">\n<div class=\"wp-block-stackable-text stk-block-text stk-block stk-342c158\" data-block-id=\"342c158\"><p class=\"stk-block-text__text\">To meet the customer&#8217;s expectations, the PIS\u00c9O experts imagined an imaging system capable of reading the lighting profiles projected on a diffusing surface. The profiles measured in this way make it possible to verify in a simple and robust way, in production, that the light emission profiles of the projector comply with the characteristics expected of the projector once integrated. They then specified the architecture of the bench and its components including camera, lens, mechanical and electrical interfaces, then carried out the detailed design.<\/p><\/div>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"540\" src=\"https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/correction-banc-de-mesures-1024x540.jpg\" alt=\"\" class=\"wp-image-25439\" style=\"width:512px;height:270px\" srcset=\"https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/correction-banc-de-mesures-1024x540.jpg 1024w, https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/correction-banc-de-mesures-600x317.jpg 600w, https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/correction-banc-de-mesures-300x158.jpg 300w, https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/correction-banc-de-mesures-768x405.jpg 768w, https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/correction-banc-de-mesures-150x79.jpg 150w, https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/correction-banc-de-mesures-696x367.jpg 696w, https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/correction-banc-de-mesures-1068x564.jpg 1068w, https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/correction-banc-de-mesures-1200x633.jpg 1200w, https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/correction-banc-de-mesures.jpg 1283w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"587\" src=\"https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/banc-test-1024x587.jpg\" alt=\"\" class=\"wp-image-25436\" style=\"width:512px;height:294px\" srcset=\"https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/banc-test-1024x587.jpg 1024w, https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/banc-test-600x344.jpg 600w, https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/banc-test-300x172.jpg 300w, https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/banc-test-768x440.jpg 768w, https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/banc-test-150x86.jpg 150w, https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/banc-test-696x399.jpg 696w, https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/banc-test.jpg 1041w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/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-f84e844 is-style-plain\" data-block-id=\"f84e844\"><style>.stk-f84e844{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-4d0c2d9 stk--container-small stk-block-accordion__heading\" data-v=\"4\" data-block-id=\"4d0c2d9\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-4d0c2d9-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-4d0c2d9-inner-blocks\">\n<div class=\"wp-block-stackable-icon-label stk-block-icon-label stk-block stk-be86456\" data-block-id=\"be86456\"><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-e2c0a80\" id=\"geometric-and-radiometric-calibration\" data-block-id=\"e2c0a80\"><h2 class=\"stk-block-heading__text\">Geometric and radiometric calibration <\/h2><\/div>\n\n\n\n<div class=\"wp-block-stackable-icon stk-block-icon stk-block stk-fa673ec\" data-block-id=\"fa673ec\"><span class=\"stk--svg-wrapper\"><div class=\"stk--inner-svg\"><svg style=\"height:0;width:0\"><defs><linearGradient id=\"linear-gradient-fa673ec\" x1=\"0\" x2=\"100%\" y1=\"0\" y2=\"0\"><stop offset=\"0%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-fa-673-ec-color-1)\"><\/stop><stop offset=\"100%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-fa-673-ec-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-3003cd6 stk-block-accordion__content\" data-v=\"4\" data-block-id=\"3003cd6\"><style>.stk-3003cd6-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-3003cd6-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-3003cd6-inner-blocks\">\n<p class=\"wp-block-paragraph\">Because the lens of the camera used on this bench generates distortion and field curvature, it was necessary to first perform a geometric calibration to correct optical aberrations. For this, PIS\u00c9O used a checkerboard pattern, which made it possible to characterize the optical aberration of the system and to calculate the correction coefficients to be used by the algorithms for processing the captured images. The geometric calibration thus carried out makes it possible to draw up an illumination map meeting the precision required by the customer.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The second step was a radiometric calibration. This considered the diffusion characteristics of the frosted screen integrated into the measurement bench, the optical transmission of the objective, its vignetting, the sensitivity, as well as the spectral response of the camera sensor.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For this, measuring devices from the PIS\u00c9O laboratory calibrated under <a href=\"https:\/\/www.cofrac.fr\/\">ISO 17025 accreditation (scope available on <a href=\"http:\/\/www.cofrac.fr\">www.cofrac.fr<\/a>),<\/a> and more particularly the CAS140D spectroradiometer, were used to establish a reference illumination map.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The camera on the bench then acquired images of the frosted screen, with different integration times in order to process illumination profiles whose variations would the camera might not otherwise not be able to detect. These images were processed by an image processing algorithm developed by PIS\u00c9O experts. The algorithm is used to calculate the radiometric correction coefficients specific to the measurement bench, by comparing the calculated illumination map with the measured reference map.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This radiometric calibration has been validated for all wavelengths of the light spectrum used, including the visible and near infrared range, between 400 nm and 850 nm.<\/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-6463764 is-style-plain\" data-block-id=\"6463764\"><style>.stk-6463764{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-9fb9a28 stk--container-small stk-block-accordion__heading\" data-v=\"4\" data-block-id=\"9fb9a28\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-9fb9a28-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-9fb9a28-inner-blocks\">\n<div class=\"wp-block-stackable-icon-label stk-block-icon-label stk-block stk-a8721e2\" data-block-id=\"a8721e2\"><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-d42bbfa\" id=\"development-of-the-software-for-setting-up-and-controlling-the-test-bench\" data-block-id=\"d42bbfa\"><h2 class=\"stk-block-heading__text\">Development of the software for setting up and controlling the test bench<\/h2><\/div>\n\n\n\n<div class=\"wp-block-stackable-icon stk-block-icon stk-block stk-d1454d3\" data-block-id=\"d1454d3\"><span class=\"stk--svg-wrapper\"><div class=\"stk--inner-svg\"><svg style=\"height:0;width:0\"><defs><linearGradient id=\"linear-gradient-d1454d3\" x1=\"0\" x2=\"100%\" y1=\"0\" y2=\"0\"><stop offset=\"0%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-d-1454-d-3-color-1)\"><\/stop><stop offset=\"100%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-d-1454-d-3-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-91f3cc1 stk-block-accordion__content\" data-v=\"4\" data-block-id=\"91f3cc1\"><style>.stk-91f3cc1-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-91f3cc1-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-91f3cc1-inner-blocks\">\n<div class=\"wp-block-stackable-text stk-block-text stk-block stk-73d74dd\" data-block-id=\"73d74dd\"><p class=\"stk-block-text__text\">PIS\u00c9O also created measurement bench control software to allow adjustment of the alignment of the light projector on the frosted screen of the bench and adjustment of the camera exposure time. This software then makes it possible to visualize the image of illumination as well as the horizontal and vertical profiles, and to choose the point of the image from which one wants to study these profiles. It generates the illumination map from the images acquired according to a precise sequence and image processing adapted to the singularities of the light projector. It also manages the measurement bench by triggering an illumination measurement, by saving or loading an image. Finally, it gives the possibility of exporting an illumination map and\/or the illumination profiles. PIS\u00c9O developed the human-machine interface (HMI), image processing, camera control and image management parts in Python.<\/p><\/div>\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-a9f1952 is-style-plain\" data-block-id=\"a9f1952\"><style>.stk-a9f1952{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-3a70211 stk--container-small stk-block-accordion__heading\" data-v=\"4\" data-block-id=\"3a70211\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-3a70211-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-3a70211-inner-blocks\">\n<div class=\"wp-block-stackable-icon-label stk-block-icon-label stk-block stk-4ca88ac\" data-block-id=\"4ca88ac\"><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-4a4bc95\" id=\"realization-of-the-test-bench\" data-block-id=\"4a4bc95\"><h2 class=\"stk-block-heading__text\">Realization of the test bench<\/h2><\/div>\n\n\n\n<div class=\"wp-block-stackable-icon stk-block-icon stk-block stk-f5f4f51\" data-block-id=\"f5f4f51\"><span class=\"stk--svg-wrapper\"><div class=\"stk--inner-svg\"><svg style=\"height:0;width:0\"><defs><linearGradient id=\"linear-gradient-f5f4f51\" x1=\"0\" x2=\"100%\" y1=\"0\" y2=\"0\"><stop offset=\"0%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-f-5-f-4-f-51-color-1)\"><\/stop><stop offset=\"100%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-f-5-f-4-f-51-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-267adc8 stk-block-accordion__content\" data-v=\"4\" data-block-id=\"267adc8\"><style>.stk-267adc8-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-267adc8-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-267adc8-inner-blocks\">\n<div class=\"wp-block-stackable-text stk-block-text stk-block stk-65ef07f\" data-block-id=\"65ef07f\"><p class=\"stk-block-text__text\">The test bench had to be custom-designed to meet the specific needs of the client and to guarantee accurate and reliable results. The opto-mechanical design of the measuring bench made it possible to combine standard mechanical elements with custom-machined parts. This resulted in a compact, lightweight but robust design that could be moved by one person, be used on a workbench, and provide accurate, reproducible, and repeatable measurements over time. The cost price has been optimized from the design phase. The assembly and alignment of the bench were carried out in the <a href=\"https:\/\/piseo.fr\/en\/optical-laboratory-posts\/\">PIS\u00c9O laboratory<\/a>.<\/p><\/div>\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-e0867a4 is-style-plain\" data-block-id=\"e0867a4\"><style>.stk-e0867a4{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-a85270e stk--container-small stk-block-accordion__heading\" data-v=\"4\" data-block-id=\"a85270e\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-a85270e-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-a85270e-inner-blocks\">\n<div class=\"wp-block-stackable-icon-label stk-block-icon-label stk-block stk-1e13fb0\" data-block-id=\"1e13fb0\"><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-7d47c68\" id=\"validation-of-the-test-bench\" data-block-id=\"7d47c68\"><h2 class=\"stk-block-heading__text\">Validation of the test bench<\/h2><\/div>\n\n\n\n<div class=\"wp-block-stackable-icon stk-block-icon stk-block stk-e74cdef\" data-block-id=\"e74cdef\"><span class=\"stk--svg-wrapper\"><div class=\"stk--inner-svg\"><svg style=\"height:0;width:0\"><defs><linearGradient id=\"linear-gradient-e74cdef\" x1=\"0\" x2=\"100%\" y1=\"0\" y2=\"0\"><stop offset=\"0%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-e-74-cdef-color-1)\"><\/stop><stop offset=\"100%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-e-74-cdef-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-0849263 stk-block-accordion__content\" data-v=\"4\" data-block-id=\"0849263\"><style>.stk-0849263-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-0849263-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-0849263-inner-blocks\">\n<p class=\"wp-block-paragraph\">Once the measurement bench was assembled, PIS\u00c9O engineers carried out a series of tests to check its performance.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">First, they did geometric and radiometric calibrations. The verifications focused on the calculations of the illumination profiles produced by a diffuse light source and by a collimated light source, which were compared with the profiles measured by devices in the PIS\u00c9O laboratory. The difference observed was less than the precision required by the customer, so the measuring bench was validated.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">At the end of these tests, PIS\u00c9O recorded the geometric and radiometric calibrations in the measuring bench. The engineers set up management by serial number to manage the different copies of the measuring bench. They also compiled a user manual, a manufacturing file and a technical report gathering all the results of the tests carried out on the bench to allow the customer to understand the device\u2019s performance.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1003\" height=\"687\" src=\"https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/resultat-banc-test.jpg\" alt=\"endoscope bench\" class=\"wp-image-25533\" style=\"width:502px;height:344px\" srcset=\"https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/resultat-banc-test.jpg 1003w, https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/resultat-banc-test-600x411.jpg 600w, https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/resultat-banc-test-300x205.jpg 300w, https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/resultat-banc-test-768x526.jpg 768w, https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/resultat-banc-test-150x103.jpg 150w, https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/resultat-banc-test-218x150.jpg 218w, https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/resultat-banc-test-436x300.jpg 436w, https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/resultat-banc-test-696x477.jpg 696w\" sizes=\"auto, (max-width: 1003px) 100vw, 1003px\" \/><\/figure>\n<\/div><\/div><\/div><\/div>\n<\/details>\n","protected":false},"excerpt":{"rendered":"<p>Specialized in the development, production, and certification of high-tech products for endoscopic applications, this customer wished to benefit from PIS\u00c9O\u2019s skills in developing tailor-made optical test bench. Test benches are essential tools for measuring the optical performance of medical devices such as illumination systems used particularly in medical applications, more specifically surgery. After devising a [&hellip;]<\/p>\n","protected":false},"author":171492485,"featured_media":25449,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","footnotes":""},"categories":[7013,6325,7005,7004],"tags":[],"class_list":["post-25481","post","type-post","status-publish","format-standard","has-post-thumbnail","category-medical-posts","category-non-classifiee","category-optical-benches","category-optical-consulting-engineering-posts"],"featured_image_src":"https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/Banc-de-test.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\/2023\/04\/Banc-de-test.jpg",1861,409,false],"thumbnail":["https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/Banc-de-test-150x150.jpg",150,150,true],"medium":["https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/Banc-de-test-300x66.jpg",300,66,true],"medium_large":["https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/Banc-de-test-768x169.jpg",696,153,true],"large":["https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/Banc-de-test-1024x225.jpg",696,153,true],"1536x1536":["https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/Banc-de-test-1536x338.jpg",1536,338,true],"2048x2048":["https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/Banc-de-test.jpg",1861,409,false],"td_150x0":["https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/Banc-de-test-150x33.jpg",150,33,true],"td_150x0_retina":["https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/Banc-de-test-300x66.jpg",300,66,true],"td_218x150":["https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/Banc-de-test-218x150.jpg",218,150,true],"td_218x150_retina":["https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/Banc-de-test-436x300.jpg",436,300,true],"td_300x0":["https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/Banc-de-test-300x66.jpg",300,66,true],"td_300x0_retina":["https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/Banc-de-test-600x132.jpg",600,132,true],"td_324x400":["https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/Banc-de-test-324x400.jpg",324,400,true],"td_324x400_retina":["https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/Banc-de-test-648x409.jpg",648,409,true],"td_485x360":["https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/Banc-de-test-485x360.jpg",485,360,true],"td_485x360_retina":["https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/Banc-de-test-970x409.jpg",970,409,true],"td_696x0":["https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/Banc-de-test-696x153.jpg",696,153,true],"td_696x0_retina":["https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/Banc-de-test-1392x306.jpg",1392,306,true],"td_1068x0":["https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/Banc-de-test-1068x235.jpg",1068,235,true],"td_1068x0_retina":["https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/Banc-de-test.jpg",1861,409,false],"td_1920x0":["https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/Banc-de-test.jpg",1861,409,false],"td_1920x0_retina":["https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/Banc-de-test.jpg",1861,409,false],"ultp_layout_landscape_large":["https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/Banc-de-test-1200x409.jpg",1200,409,true],"ultp_layout_landscape":["https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/Banc-de-test-870x409.jpg",870,409,true],"ultp_layout_portrait":["https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/Banc-de-test-600x409.jpg",600,409,true],"ultp_layout_square":["https:\/\/piseo.fr\/wp-content\/uploads\/2023\/04\/Banc-de-test-600x409.jpg",600,409,true]},"post_excerpt_stackable_v2":"<p>Specialized in the development, production, and certification of high-tech products for endoscopic applications, this customer wished to benefit from PIS\u00c9O\u2019s skills in developing tailor-made optical test bench. Test benches are essential tools for measuring the optical performance of medical devices such as illumination systems used particularly in medical applications, more specifically surgery. After devising a light projector integrated into an endoscope-type surgical robot, the customer wanted to measure the relative illumination delivered by this projector during its manufacture. PIS\u00c9O designed and produced a dedicated optical measurement bench for this purpose. To meet the customer&#8217;s needs, PIS\u00c9O designed the measurement bench&nbsp;&hellip;<\/p>\n","category_list_v2":"<a href=\"https:\/\/piseo.fr\/en\/markets-posts\/medical-posts\/\" rel=\"category tag\">Medical<\/a>, <a href=\"https:\/\/piseo.fr\/non-classifiee\/\" rel=\"category tag\">Non classifi\u00e9e<\/a>, <a href=\"https:\/\/piseo.fr\/en\/optical-consulting-engineering-posts\/optical-benches\/\" rel=\"category tag\">Optical benches<\/a>, <a href=\"https:\/\/piseo.fr\/en\/optical-consulting-engineering-posts\/\" rel=\"category tag\">Optical consulting and engineering<\/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>Test bench for endoscope - PIS\u00c9O<\/title>\n<meta name=\"description\" content=\"test bench for endoscope : PIS\u00c9O engineers carried out the realization, calibration specification of different test benches.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/piseo.fr\/en\/optical-consulting-engineering-posts\/optical-benches\/test-bench-for-endoscope\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Test bench for endoscope - PIS\u00c9O\" \/>\n<meta property=\"og:description\" content=\"test bench for endoscope : PIS\u00c9O engineers carried out the realization, calibration specification of different test benches.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/piseo.fr\/en\/optical-consulting-engineering-posts\/optical-benches\/test-bench-for-endoscope\/\" \/>\n<meta property=\"og:site_name\" content=\"PIS\u00c9O\" \/>\n<meta property=\"article:published_time\" 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