{"id":20533,"date":"2026-11-01T10:41:20","date_gmt":"2026-11-01T02:41:20","guid":{"rendered":"https:\/\/www.wehopower.com\/news\/xlg60-machine-vision-lighting-banding\/"},"modified":"2026-11-01T10:41:20","modified_gmt":"2026-11-01T02:41:20","slug":"xlg60-machine-vision-lighting-banding","status":"publish","type":"news","link":"https:\/\/www.wehopower.com\/ru\/news\/xlg60-machine-vision-lighting-banding\/","title":{"rendered":"LED Lighting and Machine-Vision Banding: Qualify the Camera and Supply Together"},"content":{"rendered":"<div class=\"weho-blog-content\">\n<p><strong>Qualify the LED supply, light or controller, and camera together at the exposure and acquisition settings the inspection actually needs.<\/strong> A light that looks steady to a person can still produce frame variation or bands in captured images. A supply\u2019s wattage alone does not establish a camera-compatible lighting system.<\/p>\n<p>This article helps an equipment builder create an image-acceptance matrix. The WEHO XLG-60-24 is a supply candidate for document review, not a claim of a tested machine-vision driver or a guaranteed banding-free result.<\/p>\n<nav class=\"toc\" aria-label=\"Article contents\">\n<p>In this article<\/p>\n<ol>\n<li><a href=\"#product-boundary\">Confirm the lighting interface before comparing images<\/a><\/li>\n<li><a href=\"#timing\">Understand why the camera can reveal bands<\/a><\/li>\n<li><a href=\"#matrix\">Build the acquisition matrix around the inspection requirement<\/a><\/li>\n<li><a href=\"#metrics\">Judge frames and rows, then judge the inspection<\/a><\/li>\n<li><a href=\"#example\">A hypothetical exposure change is a clue, not an acceptance result<\/a><\/li>\n<li><a href=\"#release\">Approve a configuration and an operating window<\/a><\/li>\n<\/ol>\n<\/nav>\n<section id=\"product-boundary\">\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_86 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u041e\u0433\u043b\u0430\u0432\u043b\u0435\u043d\u0438\u0435<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">\u041f\u0435\u0440\u0435\u043a\u043b\u044e\u0447\u0430\u0442\u044c<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.wehopower.com\/ru\/news\/xlg60-machine-vision-lighting-banding\/#Confirm_the_lighting_interface_before_comparing_images\" >Confirm the lighting interface before comparing images<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.wehopower.com\/ru\/news\/xlg60-machine-vision-lighting-banding\/#Understand_why_the_camera_can_reveal_bands\" >Understand why the camera can reveal bands<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.wehopower.com\/ru\/news\/xlg60-machine-vision-lighting-banding\/#Build_the_acquisition_matrix_around_the_inspection_requirement\" >Build the acquisition matrix around the inspection requirement<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.wehopower.com\/ru\/news\/xlg60-machine-vision-lighting-banding\/#Judge_frames_and_rows_then_judge_the_inspection\" >Judge frames and rows, then judge the inspection<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.wehopower.com\/ru\/news\/xlg60-machine-vision-lighting-banding\/#A_hypothetical_exposure_change_is_a_clue_not_an_acceptance_result\" >A hypothetical exposure change is a clue, not an acceptance result<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.wehopower.com\/ru\/news\/xlg60-machine-vision-lighting-banding\/#Approve_a_configuration_and_an_operating_window\" >Approve a configuration and an operating window<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.wehopower.com\/ru\/news\/xlg60-machine-vision-lighting-banding\/#Use_the_project_record\" >Use the project record<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.wehopower.com\/ru\/news\/xlg60-machine-vision-lighting-banding\/#Review_the_XLG-60-24_against_your_lights_input_requirements\" >Review the XLG-60-24 against your light\u2019s input requirements<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.wehopower.com\/ru\/news\/xlg60-machine-vision-lighting-banding\/#Sources_and_further_reading\" >Sources and further reading<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Confirm_the_lighting_interface_before_comparing_images\"><\/span>Confirm the lighting interface before comparing images<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0410 <a href=\"https:\/\/www.wehopower.com\/ru\/product\/ip67-waterproof-led-driver-ac-95-264v-dc-12v-24v-36v-48v-60w-single-output-constant-current-switching-power-supply\/\">WEHO XLG-60 product page<\/a> lists the XLG-60-24 with a 24 V output entry, 2.5 A rated current and 60 W output power. Its table also lists a constant-current operating range. Confirm the exact output behavior and compatibility required by the proposed light before connecting it.<\/p>\n<p>A light module requiring a regulated voltage input and an LED load requiring controlled current are different interfaces. Identify any intermediate controller and obtain the complete chain\u2019s instructions. The public XLG-60 page does not establish a PWM dimming protocol, camera-trigger input, optical-flicker specification or strobe overdrive capability.<\/p>\n<p>Keep those gaps visible in the selection record. If the light manufacturer\u2019s interface cannot be matched to documented supply behavior, resolve that question before treating an image trial as product qualification.<\/p>\n<figure class=\"figure\" id=\"figure-diagram\"><picture><source media=\"(max-width: 600px)\" srcset=\"https:\/\/www.wehopower.com\/wp-content\/uploads\/2026\/11\/decision-map-mobile-2.svg\" width=\"480\" height=\"1390\" type=\"image\/svg+xml\"><img loading=\"lazy\" src=\"https:\/\/www.wehopower.com\/wp-content\/uploads\/2026\/11\/decision-map-2.svg\" alt=\"LED Lighting and Machine-Vision Banding: Qualify the Camera and Supply Together  title=\" width=\"1200\" height=\"740\" decoding=\"async\" led lighting and machine-vision banding: qualify the camera supply together title =\"\"><\/picture><figcaption>Qualify the lighting chain at the required settings. A four-part image qualification record links documented light interface, optical behavior, camera timing and inspection acceptance without claiming a tested installation. <a class=\"original-link\" href=\"https:\/\/www.wehopower.com\/wp-content\/uploads\/2026\/11\/decision-map-2.svg\">View original image<\/a><\/figcaption><\/figure>\n<\/section>\n<section id=\"timing\">\n<h2><span class=\"ez-toc-section\" id=\"Understand_why_the_camera_can_reveal_bands\"><\/span>Understand why the camera can reveal bands<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><a href=\"https:\/\/docs.baslerweb.com\/electronic-shutter-types\" target=\"_blank\" rel=\"noopener\">Basler\u2019s shutter documentation<\/a> explains that a rolling shutter exposes successive sensor rows with a time offset. Different rows can therefore sample changing illumination at different times. Global-shutter acquisition changes the sampling relationship but does not, by itself, certify that every captured frame has equal brightness.<\/p>\n<p>Basler\u2019s <a href=\"https:\/\/docs.baslerweb.com\/light-control\" target=\"_blank\" rel=\"noopener\">Light Control documentation<\/a> gives a specific example of PWM-controlled camera lighting causing brightness fluctuations or rolling-shutter stripes under certain short-exposure and brightness settings. That example supports checking the timing relationship. Its model-specific thresholds and settings must not be assigned to the XLG-60-24 or an unspecified camera.<\/p>\n<p>Also keep electrical and optical quantities separate. A supply ripple entry describes an electrical measurement under its stated method. Image banding concerns how the light\u2019s output is sampled by the camera. Neither figure can be substituted for the other without evidence from the actual lighting chain.<\/p>\n<\/section>\n<section id=\"matrix\">\n<h2><span class=\"ez-toc-section\" id=\"Build_the_acquisition_matrix_around_the_inspection_requirement\"><\/span>Build the acquisition matrix around the inspection requirement<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Record the camera model, shutter mode, lens, firmware, image region and acquisition mode. Identify the light and controller, brightness command, supply revision and operating conditions. Fix the target and geometry so a change in framing is not mistaken for a lighting improvement.<\/p>\n<div class=\"table-wrap\">\n<table>\n<thead>\n<tr>\n<th scope=\"col\">Matrix dimension<\/th>\n<th scope=\"col\">Conditions to include<\/th>\n<th scope=\"col\">Record for comparison<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<th scope=\"row\">Exposure and acquisition<\/th>\n<td>The shortest required exposure, nominal setting and required acquisition rates or trigger modes.<\/td>\n<td>Actual camera settings and any documented timing limits.<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Lighting command<\/th>\n<td>Every brightness or continuous\/strobe mode required by the application and supported by the equipment.<\/td>\n<td>Exact controller setting and interface documentation.<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Operating condition<\/th>\n<td>Required startup and stabilized operation within the equipment ratings.<\/td>\n<td>Condition, observation interval and lighting-chain configuration.<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Inspection target<\/th>\n<td>Uniform reference target and representative production features.<\/td>\n<td>Raw image identifiers, regions used and inspection result.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>Select the required combinations before testing. A slower frame rate or longer exposure may remove a visible symptom while making the inspection miss moving parts. Accept only settings that still meet the actual task.<\/p>\n<p>During controlled comparison, prevent automatic exposure or gain changes from silently changing the question. Record all relevant automatic processing and, where the approved test plan requires it, hold those settings constant. Retain the original files used for evaluation.<\/p>\n<\/section>\n<section id=\"metrics\">\n<h2><span class=\"ez-toc-section\" id=\"Judge_frames_and_rows_then_judge_the_inspection\"><\/span>Judge frames and rows, then judge the inspection<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Define what constitutes an unacceptable band or brightness change in the relevant image region. A uniform reference target can reveal spatial patterns, while representative parts show whether those patterns affect the intended measurement or detection. Keep saturated or otherwise unsuitable images out of a brightness comparison using criteria defined in advance.<\/p>\n<p>One optional project metric is the normalized range of frame means: <strong>(largest region mean \u2212 smallest region mean) \u00f7 average region mean \u00d7 100%<\/strong>, using the same region and settings. This is a proposed comparison metric, not a standard flicker rating, an XLG-60 specification or a universal pass threshold.<\/p>\n<p>Frame averages can hide a bright band beside a dark band. Add a row-profile comparison or another documented spatial criterion where banding matters. Have the vision team set tolerances from the inspection\u2019s sensitivity, then evaluate the required defect-detection or measurement result separately.<\/p>\n<\/section>\n<section id=\"example\">\n<h2><span class=\"ez-toc-section\" id=\"A_hypothetical_exposure_change_is_a_clue_not_an_acceptance_result\"><\/span>A hypothetical exposure change is a clue, not an acceptance result<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Suppose bands appear at a required short exposure and disappear after the exposure is lengthened. That observation would justify investigating illumination timing and camera sampling. It would not prove the supply is defective or establish that the longer setting is acceptable for the production speed.<\/p>\n<p>The team would retain the two configurations, raw images and inspection outcomes, then compare one documented factor at a time within the equipment\u2019s allowed operation. Possible changes to the light, controller, acquisition settings or supply need the same final matrix review. No actual XLG-60-24 test result is asserted in this example.<\/p>\n<p>Avoid adding an undocumented strobe connection or overdriving the LED to hide the symptom. A camera\u2019s available trigger output does not establish that an arbitrary power supply or light can receive it.<\/p>\n<\/section>\n<section id=\"release\">\n<h2><span class=\"ez-toc-section\" id=\"Approve_a_configuration_and_an_operating_window\"><\/span>Approve a configuration and an operating window<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The release should identify which hardware and settings passed the project\u2019s image and inspection criteria, with traceable image files. List required modes that were not tested as open items. \u201cLooks stable\u201d is not an adequate record of exposure-dependent performance.<\/p>\n<p>Revisit the qualification after a light-controller, camera firmware, brightness mode or supply substitution. Keep the approved operating window with the machine recipe so production adjustments remain within the settings that were actually evaluated.<\/p>\n<\/section>\n<section id=\"project-record\">\n<h2><span class=\"ez-toc-section\" id=\"Use_the_project_record\"><\/span>Use the project record<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><a href=\"\/ru\/acceptance-record.html\/\">Open the blank Machine-Vision Lighting \u2014 Acquisition Qualification Matrix<\/a> to record your conditions, evidence and decisions. The worksheet contains no pre-approved result.<\/p>\n<\/section>\n<section class=\"cta\" id=\"project-review\">\n<h2><span class=\"ez-toc-section\" id=\"Review_the_XLG-60-24_against_your_lights_input_requirements\"><\/span>Review the XLG-60-24 against your light\u2019s input requirements<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Send WEHO the exact light or controller input specification, required operating mode, load and supply conditions. Request confirmation of the offered XLG-60-24 output behavior; use the vision team\u2019s camera matrix to qualify the complete lighting chain.<\/p>\n<p><a href=\"https:\/\/www.wehopower.com\/ru\/contact\/\">Contact WEHO about XLG-60-24 application information<\/a><\/p>\n<\/section>\n<section class=\"sources\" id=\"sources\">\n<h2><span class=\"ez-toc-section\" id=\"Sources_and_further_reading\"><\/span>Sources and further reading<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ol>\n<li><a href=\"https:\/\/www.wehopower.com\/ru\/product\/ip67-waterproof-led-driver-ac-95-264v-dc-12v-24v-36v-48v-60w-single-output-constant-current-switching-power-supply\/\">WEHO XLG-60 LED supply product information<\/a><\/li>\n<li><a href=\"https:\/\/docs.baslerweb.com\/electronic-shutter-types\" target=\"_blank\" rel=\"noopener\">Basler \u2014 Electronic Shutter Types<\/a><\/li>\n<li><a href=\"https:\/\/docs.baslerweb.com\/light-control\" target=\"_blank\" rel=\"noopener\">Basler \u2014 Light Control, operating considerations<\/a><\/li>\n<\/ol>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Banding depends on optical output and camera timing, not simply the LED supply wattage. Record the exact lighting chain and test the required camera settings.<\/p>","protected":false},"author":2,"featured_media":20509,"parent":0,"menu_order":53,"comment_status":"","ping_status":"","template":"","format":"standard","meta":{"_acf_changed":false,"_joinchat":[],"footnotes":""},"news_category":[284],"class_list":["post-20533","news","type-news","status-publish","format-standard","has-post-thumbnail","hentry","news_category-product-articles","entry"],"acf":[],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/www.wehopower.com\/ru\/wp-json\/wp\/v2\/news\/20533","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wehopower.com\/ru\/wp-json\/wp\/v2\/news"}],"about":[{"href":"https:\/\/www.wehopower.com\/ru\/wp-json\/wp\/v2\/types\/news"}],"author":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/ru\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/ru\/wp-json\/wp\/v2\/comments?post=20533"}],"version-history":[{"count":0,"href":"https:\/\/www.wehopower.com\/ru\/wp-json\/wp\/v2\/news\/20533\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/ru\/wp-json\/wp\/v2\/media\/20509"}],"wp:attachment":[{"href":"https:\/\/www.wehopower.com\/ru\/wp-json\/wp\/v2\/media?parent=20533"}],"wp:term":[{"taxonomy":"news_category","embeddable":true,"href":"https:\/\/www.wehopower.com\/ru\/wp-json\/wp\/v2\/news_category?post=20533"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}