{"id":2465,"date":"2008-02-12T13:44:39","date_gmt":"2008-02-12T13:44:39","guid":{"rendered":"https:\/\/www.oec-gmbh.de\/products\/photodiodes-detectors-sensors\/si\/segmented-photodiodes\/"},"modified":"2008-02-12T13:44:39","modified_gmt":"2008-02-12T13:44:39","slug":"segmented-photodiodes","status":"publish","type":"page","link":"https:\/\/www.oec-gmbh.de\/en\/products\/photodiodes-detectors-sensors\/si\/segmented-photodiodes\/","title":{"rendered":"Segmented photodiodes"},"content":{"rendered":"<table border=\"0\" width=\"100%\">\n<tbody>\n<tr>\n<td><strong>Segmented photodiodes (SPOT series)<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>Position sensing detectors (PSD)<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<table style=\"height: 36px;\" border=\"0\" width=\"5\">\n<tbody>\n<tr>\n<td><\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td><\/td>\n<td valign=\"top\"><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><a href=\"\/wp-content\/uploads\/2008\/02\/segmented.png\" data-rel=\"lightbox-image-0\" data-rl_title=\"\" data-rl_caption=\"\" title=\"\"><img loading=\"lazy\" decoding=\"async\" class=\" size-thumbnail wp-image-949 alignright\" src=\"\/wp-content\/uploads\/2008\/02\/segmented-150x150.png\" alt=\"segmented\" width=\"150\" height=\"150\"><\/a>The SPOT series are photodetectors with a common cathode that are divided into either two (2) or four (4) separate active areas. They are available with either a 0.005&#8243; or 0.0004&#8243; clearly defined gap between adjacent elements, resulting in high response uniformity between elements. The SPOT series is ideal for very precise nulling or centering. Position information is obtained when the diameter of the light spot is larger than the space between the cells.<br \/>\nThe spectral response range extends from 350 &#8211; 1100 nm. Notch or bandpass filters can be added to obtain specific spectral response. These detectors have excellent stability over time and temperature, fast response times necessary for high-speed or pulsed operation, and position resolutions better than 0.1 \u03bcm. The maximum recommended power density is 10 mW\/cm\u00b2 and the typical response uniformity for a 1 mm diameter is \u00b12%. The circuit (see datasheet) shows a typical bias and detection circuit configured for both bi-cells and quad-cells. For position calculations and further details, please refer to the &#8220;Photodiode Characteristics&#8221; section in this catalog.       <\/p>\n<p><strong>Features<\/strong><\/p>\n<p>\u2022 High precision<br \/>\n\u2022 Excellent resolution<br \/>\n\u2022 High-speed response<br \/>\n\u2022 Ultra-low dark current<br \/>\n\u2022 Excellent reproduction\/signal fidelity<br \/>\n\u2022 High stability over time and temperature<\/p>\n<p><strong>Applications<\/strong><\/p>\n<p>\u2022 Machine tool alignment<br \/>\n\u2022 Position measurements<br \/>\n\u2022 Guide beam centering<br \/>\n\u2022 Surface profiling<br \/>\n\u2022 Targeting<br \/>\n\u2022 Guidance systems<\/p>\n<a class=\"prettylink pdf\"  href=\"http:\/\/www.oec-gmbh.de\/wp-content\/uploads\/2018\/08\/Segmented-Photodiodes.pdf\"><span style=\"float:right\"><\/span>Segmented photodiodes<\/a>\n","protected":false},"excerpt":{"rendered":"<p>Segmented photodiodes (SPOT series) Position sensing detectors (PSD) &nbsp; The SPOT series are photodetectors with a common cathode that are divided into either two (2) or four (4) separate active areas. They are available with either a 0.005&#8243; or 0.0004&#8243; clearly defined gap between adjacent elements, resulting in high response uniformity between elements. The SPOT&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":2442,"menu_order":87,"comment_status":"open","ping_status":"closed","template":"page-products.php","meta":{"footnotes":""},"class_list":["post-2465","page","type-page","status-publish","hentry","entry","no-media"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Segmented photodiodes - OEC GmbH - Optoelektronische Komponenten &amp; Bauteile<\/title>\n<meta name=\"description\" content=\"Optoelektronische Komponenten, Module und Systeme: GaN, InGaAs, Si, Laserdiodenmodule, Optikkomponenten, Photoempf\u00e4nger und mehr.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.oec-gmbh.de\/en\/products\/photodiodes-detectors-sensors\/si\/segmented-photodiodes\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Segmented photodiodes - OEC GmbH - Optoelektronische Komponenten &amp; 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