{"id":1,"date":"2022-05-23T18:33:47","date_gmt":"2022-05-23T10:33:47","guid":{"rendered":"http:\/\/1toptics.alywp100.159301.com\/?p=1"},"modified":"2022-06-09T18:42:31","modified_gmt":"2022-06-09T10:42:31","slug":"common-optical-systems","status":"publish","type":"post","link":"https:\/\/mb.tengyunwang.cn\/wp00201\/common-optical-systems\/","title":{"rendered":"Common Optical Systems for 1T Optics Applications"},"content":{"rendered":"\n

Optical system is the main application of optical lenses, 1T Optics lenses are used in many optical systems, such as photomultiplier tubes, diodes and so on.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n
  1. PHOTON MULTIPLIER TUBE (PMT)<\/li><\/ol>\n\n\n\n

    A photomultiplier tube is a vacuum device. It is composed of photoemission cathode (photocathode), focusing electrode, electron multiplier and electron collector (anode), etc. It is a photodetection device with extremely high sensitivity and ultrafast time response.<\/p>\n\n\n\n

    First, the light is converted into photoelectrons after being irradiated to the photocathode. After multiplication and amplification, the anode is collected as a signal output to realize photoelectric conversion.<\/p>\n\n\n\n

    2, AVALANCHE PHOTODIODE (APD)<\/p>\n\n\n\n

    It is a p-n junction photodetector diode, which utilizes the carrier avalanche multiplication effect to amplify the photoelectric signal to improve the detection sensitivity.<\/p>\n\n\n\n

    The most common function of diodes is to only allow current to pass in a single direction, that is, forward bias, and will be blocked when reversed, also known as reverse bias. When a large reverse bias is added, an avalanche-like current multiplication state is achieved, which is used to amplify the photoelectric signal.<\/p>\n\n\n\n

    3, CHARGE-COUPLED DEVICE (CCD)<\/p>\n\n\n\n

    CCD is integrated using a high-sensitivity semiconductor material, which can generate a corresponding charge signal according to the light irradiated on its surface, and convert it into a digital signal of “0” or “1” through the analog-to-digital converter chip. After the digital signal is compressed and arranged by the program, it is saved by the flash memory or hard disk card, that is, the light-receiving signal is converted into an electronic image signal that can be recognized by the computer, and the measured object can be accurately measured and analyzed.<\/p>\n\n\n\n

      The optical signal is directly converted into an analog current signal, and the current signal is amplified and converted to achieve image acquisition, storage, and transmission.<\/p>\n\n\n\n

    Both PMT and APD are point detectors, which can only detect photon information, and can detect spectra by scanning; CCD is a line array or area detector, which can image.<\/p>\n\n\n\n

    If all these optics are combined, the imaging capabilities can be very powerful. The Sapphire\u2122 dual-mode multispectral laser imaging system of Azure Company in the United States integrates these components and ranks C in the imaging field.<\/p>\n\n\n\n

    \"\"<\/figure>\n\n\n\n

    Among them, APD has high quantum conversion efficiency at longer wavelengths and is used for red, green visible fluorescence and near-infrared fluorescence detection; PMT is widely used in detection of ultraviolet and visible light at short wavelengths, and this instrument is used for blue waveband and phosphor screen detection. ; CCD is used for high-sensitivity chemiluminescence detection, and adding a CCD detector to the scanner is the unique secret of Azure.<\/p>\n\n\n\n

    \"\"<\/figure>\n\n\n\n

    (APD detection)<\/p>\n\n\n\n

    \"\"<\/figure>\n\n\n\n

           (PMT phosphor screen imaging)<\/p>\n\n\n\n

    \"\"<\/figure>\n\n\n\n

         (CCD color marker imaging)<\/p>\n\n\n\n

    \"\"<\/figure>\n\n\n\n

           (4-color fluorescence detection)<\/p>\n\n\n\n

    \"\"<\/figure>\n\n\n\n

                     (plate imaging)<\/p>\n\n\n\n

    \"\"<\/figure>\n\n\n\n

                  (tissue imaging)<\/p>\n\n\n\n

    * The graphic materials are from the Internet, and the copyright belongs to the original author. It is only for reference and learning!<\/p>\n","protected":false},"excerpt":{"rendered":"

    Optical system is the main application of optical lenses, 1T Optics lenses are used in many optical systems, such as photomultiplier tubes, diodes and so on. PHOTON MULTIPLIER TUBE (PMT) A photomultiplier tube is a vacuum device. It is composed of photoemission cathode (photocathode), focusing electrode, electron multiplier and electron collector (anode), etc. It is […]<\/p>\n","protected":false},"author":2,"featured_media":1238,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[37],"tags":[],"class_list":["post-1","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/mb.tengyunwang.cn\/wp00201\/wp-json\/wp\/v2\/posts\/1","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mb.tengyunwang.cn\/wp00201\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mb.tengyunwang.cn\/wp00201\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mb.tengyunwang.cn\/wp00201\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/mb.tengyunwang.cn\/wp00201\/wp-json\/wp\/v2\/comments?post=1"}],"version-history":[{"count":4,"href":"https:\/\/mb.tengyunwang.cn\/wp00201\/wp-json\/wp\/v2\/posts\/1\/revisions"}],"predecessor-version":[{"id":1590,"href":"https:\/\/mb.tengyunwang.cn\/wp00201\/wp-json\/wp\/v2\/posts\/1\/revisions\/1590"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mb.tengyunwang.cn\/wp00201\/wp-json\/wp\/v2\/media\/1238"}],"wp:attachment":[{"href":"https:\/\/mb.tengyunwang.cn\/wp00201\/wp-json\/wp\/v2\/media?parent=1"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mb.tengyunwang.cn\/wp00201\/wp-json\/wp\/v2\/categories?post=1"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mb.tengyunwang.cn\/wp00201\/wp-json\/wp\/v2\/tags?post=1"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}