{"id":22102,"date":"2021-10-08T14:04:52","date_gmt":"2021-10-08T07:04:52","guid":{"rendered":"https:\/\/techmaster.com.vn\/?page_id=22102"},"modified":"2022-03-07T16:13:35","modified_gmt":"2022-03-07T09:13:35","slug":"photometry-and-radiometry","status":"publish","type":"page","link":"https:\/\/techmaster.com.vn\/en\/photometry-and-radiometry\/","title":{"rendered":"PHOTOMETRY AND RADIOMETRY"},"content":{"rendered":" \t<div id=\"gap-1047776536\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-1047776536 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t <div class=\"container section-title-container\" ><h1 class=\"section-title section-title-center\"><b><\/b><span class=\"section-title-main\" >PHOTOMETRY AND RADIOMETRY<\/span><b><\/b><\/h1><\/div> \t<section class=\"section home5\" id=\"section_134194388\">\n\t\t<div class=\"bg section-bg fill bg-fill  \" >\n\n\t\t\t\n\t\t\t\n\t\t\t\n\n\t\t<\/div>\n\n\t\t\n\n\t\t<div class=\"section-content relative\">\n\t\t\t <div class=\"row\"  id=\"row-489793292\"> \n\t<div id=\"col-461238975\" class=\"col medium-6 small-12 large-6\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t <div class=\"row\"  id=\"row-1152242681\"> \n\t<div id=\"col-36617449\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t \t<div id=\"gap-659025969\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-659025969 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t <div class=\"row row-full-width\"  id=\"row-1238635698\"> \n\t<div id=\"col-353016638\" class=\"col medium-7 small-12 large-7\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t \t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t <\/div> \t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t <\/div> \t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t <\/div> \t\t<\/div>\n\n\t\t\n<style>\n#section_134194388 {\n  padding-top: 194px;\n  padding-bottom: 194px;\n}\n#section_134194388 .section-bg.bg-loaded {\n  background-image: url(https:\/\/techmaster.com.vn\/wp-content\/uploads\/2020\/12\/do-luong-quang.jpg);\n}\n#section_134194388 .ux-shape-divider--top svg {\n  height: 150px;\n  --divider-top-width: 100%;\n}\n#section_134194388 .ux-shape-divider--bottom svg {\n  height: 150px;\n  --divider-width: 100%;\n}\n<\/style>\n\t<\/section>\n\t \t<section class=\"section home1\" id=\"section_1452331466\">\n\t\t<div class=\"bg section-bg fill bg-fill  bg-loaded\" >\n\n\t\t\t\n\t\t\t\n\t\t\t\n\n\t\t<\/div>\n\n\t\t\n\n\t\t<div class=\"section-content relative\">\n\t\t\t \t<div id=\"gap-639167066\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-639167066 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t <div class=\"row\"  id=\"row-1365735612\"> \n\t<div id=\"col-1158317002\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner text-left\"  >\n\t\t\t\n\t\t\t\r\n<p style=\"margin-top: 2.0pt; text-align: justify; line-height: 150%; background: white;\"><strong>Photometric Calibration.<\/strong> The process of converting instrumental magnitudes to calibrated apparent magnitudes in a stan- dard system is generally referred to as &#8216;photometric calibration&#8217;. The level of complexity at which. this is done is dependent to a great extent on the quality of data which one has.<\/p>\r\n<p><span style=\"font-size: 100%;\"><span style=\"color: black;\"><strong> Radiometric Calibration<\/strong> refers to the ability to convert the digital numbers recorded by satellite imaging systems into physical units. Those units are either radiance (W\/m2\/sr\/\u00b5m) or apparent top-of-atmosphere reflectance.<\/span><\/span><\/p>\r\n<h2 style=\"text-align: center;\"><span style=\"font-size: 130%;\"><strong>STANDARD UNITS<\/strong><\/span><\/h2>\r\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t \n\t<div id=\"col-1424029007\" class=\"col medium-6 small-12 large-6\"  >\n\t\t\t\t<div class=\"col-inner text-left\"  >\n\t\t\t\n\t\t\t \t<div id=\"text-565415691\" class=\"text\">\n\t\t\r\n<div>\u00a0<\/div>\r\n<div>\u00a0<\/div>\r\n<div>\u00a0<\/div>\r\n<h3 style=\"text-align: center;\"><span style=\"font-size: 115%;\"><strong>ILLUMINANCE METER<\/strong><\/span><\/h3>\r\n<div style=\"text-align: justify;\">Illuminance meter products are single element detectors that measure photometric brightness falling upon a surface. It is measured in footcandles or in lux.<\/div>\r\n<div>\u00a0<\/div>\r\n<div>\u00a0<\/div>\r\n<div>\u00a0<\/div>\r\n<div>\u00a0<\/div>\r\n\t\t\n<style>\n#text-565415691 {\n  line-height: 2;\n}\n<\/style>\n\t<\/div>\n\t \t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1294720172\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1020\" height=\"575\" src=\"https:\/\/techmaster.com.vn\/wp-content\/uploads\/2020\/12\/thiet-bi-do-do-choi.jpg\" class=\"attachment-large size-large\" alt=\"Thi\u1ebft b\u1ecb \u0111o \u0111\u1ed9 ch\u00f3i\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_1294720172 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t \t<div id=\"text-4043967187\" class=\"text\">\n\t\t\r\n<div>\u00a0<\/div>\r\n<div>\u00a0<\/div>\r\n<h3 style=\"text-align: center;\"><strong>LIGHT METER<\/strong><\/h3>\r\n<div style=\"text-align: justify;\">A light meter is a device used to measure the amount of light. In photography, a light meter (more correctly an exposure meter) is used to determine the proper exposure for a photograph. The meter will include either a digital or analog calculator which displays the correct shutter speed and f-number for optimum exposure, given a certain lighting situation and film speed. Similarly, exposure meters are also used in the fields of cinematography and scenic design, in order to determine the optimum light level for a scene.<\/div>\r\n<div>\u00a0<\/div>\r\n<div>\u00a0<\/div>\r\n<div>\u00a0<\/div>\r\n<div>\u00a0<\/div>\r\n\t\t\n<style>\n#text-4043967187 {\n  line-height: 2;\n}\n<\/style>\n\t<\/div>\n\t \t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1068755985\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1020\" height=\"575\" src=\"https:\/\/techmaster.com.vn\/wp-content\/uploads\/2020\/12\/thiet-bi-do-buc-xa-uv.jpg\" class=\"attachment-large size-large\" alt=\"Thi\u1ebft b\u1ecb \u0111o b\u1ee9c x\u1ea1 UV\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_1068755985 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t \t<div id=\"text-4215021089\" class=\"text\">\n\t\t\r\n<div>\u00a0<\/div>\r\n<div>\u00a0<\/div>\r\n<div>\u00a0<\/div>\r\n<div style=\"text-align: center;\">\r\n<h3 class=\"text_2iIiQM2M98BvhYsiaXaYuw comfy_3Tv67P0yhL_J6BIUitJ2zo sizeTitle1_1zfM7_vQc3Dj448B46wR81 weightNormal_SF-rc73z4mkRlFO4x_Sh4 primary_ELb2ysditdCtk24iMBTUs\" data-selenium=\"productTitle\"><strong>SPECTROMASTER COLOR METER<\/strong><\/h3>\r\n<\/div>\r\n<div style=\"text-align: justify;\">\u00a0is an advanced field meter capable of reading virtually all light sources whether they&#8217;re LED, flash, incandescent, HMI, fluorescent, or in the natural light spectrum. Most importantly, it&#8217;s a practical lighting tool that analyzes the light source<\/div>\r\n<div>\u00a0<\/div>\r\n<div>\u00a0<\/div>\r\n<div>\u00a0<\/div>\r\n\t\t\n<style>\n#text-4215021089 {\n  line-height: 2;\n}\n<\/style>\n\t<\/div>\n\t \t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t \n\t<div id=\"col-303564434\" class=\"col medium-6 small-12 large-6\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t \t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_254629489\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1020\" height=\"575\" src=\"https:\/\/techmaster.com.vn\/wp-content\/uploads\/2020\/12\/thiet-bi-do-do-roi.jpg\" class=\"attachment-large size-large\" alt=\"Thi\u1ebft b\u1ecb \u0111o \u0111\u1ed9 r\u1ecdi\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_254629489 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t \t<div id=\"text-1724777128\" class=\"text\">\n\t\t\r\n<div>\u00a0<\/div>\r\n<div>\u00a0<\/div>\r\n<div>\u00a0<\/div>\r\n<h3 style=\"text-align: center;\"><strong>LUMINANCE METER<\/strong><\/h3>\r\n<div style=\"text-align: justify;\">Luminance meters are single element detectors that measure photometric brightness. The Konica Minolta luminance meter measures the amount of emitted or reflected light from a surface.<\/div>\r\n<div>\u00a0<\/div>\r\n<div>\u00a0<\/div>\r\n<div>\u00a0<\/div>\r\n<div style=\"text-align: center;\">\u00a0<\/div>\r\n\t\t\n<style>\n#text-1724777128 {\n  line-height: 2;\n}\n<\/style>\n\t<\/div>\n\t \t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1839341266\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1020\" height=\"575\" src=\"https:\/\/techmaster.com.vn\/wp-content\/uploads\/2020\/12\/do-quang-thong.jpg\" class=\"attachment-large size-large\" alt=\"\u0110\u1ed9 quang th\u00f4ng\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_1839341266 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t \t<div id=\"text-1867536829\" class=\"text\">\n\t\t\r\n<div>\u00a0<\/div>\r\n<div>\u00a0<\/div>\r\n<div>\u00a0<\/div>\r\n<div>\u00a0<\/div>\r\n<div style=\"text-align: center;\"><span style=\"font-size: 115%;\"><strong>UVA\/UVC LIGHT METER\/DATALOGGER<\/strong><\/span><\/div>\r\n<div style=\"text-align: justify;\">Short-\/Long-wave UV Irradiance Light Meter with Datalogging can measure both long wave and short wave UV irradiance under UVA and UVC light sources respectively. This meter features a cosine correction filter, data logging to Excel format, offset adjustment for relative measurements<\/div>\r\n<div>\u00a0<\/div>\r\n<div>\u00a0<\/div>\r\n<div>\u00a0<\/div>\r\n<div>\u00a0<\/div>\r\n<div style=\"text-align: center;\">\u00a0<\/div>\r\n\t\t\n<style>\n#text-1867536829 {\n  line-height: 2;\n}\n<\/style>\n\t<\/div>\n\t \t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1014661691\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1020\" height=\"575\" src=\"https:\/\/techmaster.com.vn\/wp-content\/uploads\/2020\/12\/thiet-bi-do-mau.jpg\" class=\"attachment-large size-large\" alt=\"Thi\u1ebft b\u1ecb \u0111o m\u00e0u\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_1014661691 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t \t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t <\/div> \t\t<\/div>\n\n\t\t\n<style>\n#section_1452331466 {\n  padding-top: 0px;\n  padding-bottom: 0px;\n}\n#section_1452331466 .ux-shape-divider--top svg {\n  height: 150px;\n  --divider-top-width: 100%;\n}\n#section_1452331466 .ux-shape-divider--bottom svg {\n  height: 150px;\n  --divider-width: 100%;\n}\n<\/style>\n\t<\/section>\n\t \t<section class=\"section hc1\" id=\"section_1611174695\">\n\t\t<div class=\"bg section-bg fill bg-fill  bg-loaded\" >\n\n\t\t\t\n\t\t\t\n\t\t\t\n\n\t\t<\/div>\n\n\t\t\n\n\t\t<div class=\"section-content relative\">\n\t\t\t <div class=\"row align-center row4\"  id=\"row-1602915442\"> \n\t<div id=\"col-729605318\" class=\"col form medium-9 small-12 large-9\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\r\n<h3>Request a quotation<\/h3>\r\n\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f5565-o1\" lang=\"vi\" dir=\"ltr\" data-wpcf7-id=\"5565\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/en\/wp-json\/wp\/v2\/pages\/22102#wpcf7-f5565-o1\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"Form li\u00ean h\u1ec7\" enctype=\"multipart\/form-data\" novalidate=\"novalidate\" data-status=\"init\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"5565\" \/><input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.1.4\" \/><input type=\"hidden\" name=\"_wpcf7_locale\" value=\"vi\" \/><input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f5565-o1\" \/><input type=\"hidden\" name=\"_wpcf7_container_post\" value=\"0\" \/><input type=\"hidden\" name=\"_wpcf7_posted_data_hash\" value=\"\" \/>\n<\/fieldset>\n<!-- Dinhit_Begin_Contact_Form -->\n<div id=\"responsive-form\" class=\"clearfix\">\n\t<div class=\"form-row\">\n\t\t<div class=\"column-c1\">\n\t\t\t<p>COMPANY (*)\n\t\t\t<\/p>\n\t\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"company-1\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required form-company\" aria-required=\"true\" aria-invalid=\"false\" value=\"\" type=\"text\" name=\"company-1\" \/><\/span>\n\t\t\t<\/p>\n\t\t<\/div>\n\t\t<div class=\"column-c2\">\n\t\t\t<p>PROVINCE\n\t\t\t<\/p>\n\t\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"address-1\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required form-address\" aria-required=\"true\" aria-invalid=\"false\" value=\"\" type=\"text\" name=\"address-1\" \/><\/span>\n\t\t\t<\/p>\n\t\t<\/div>\n\t<\/div>\n\t<div class=\"form-row\">\n\t\t<div class=\"column-c1\">\n\t\t\t<p>NAME (*)\n\t\t\t<\/p>\n\t\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"name-1\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required form-name\" aria-required=\"true\" aria-invalid=\"false\" value=\"\" type=\"text\" name=\"name-1\" \/><\/span>\n\t\t\t<\/p>\n\t\t<\/div>\n\t\t<div class=\"column-c2\">\n\t\t\t<p>TITLE\n\t\t\t<\/p>\n\t\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"subject-1\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required form-subject\" aria-required=\"true\" aria-invalid=\"false\" value=\"\" type=\"text\" name=\"subject-1\" \/><\/span>\n\t\t\t<\/p>\n\t\t<\/div>\n\t<\/div>\n\t<div class=\"form-row\">\n\t\t<div class=\"column-c1\">\n\t\t\t<p>PHONE (*)\n\t\t\t<\/p>\n\t\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"tel-1\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required form-tel\" aria-required=\"true\" aria-invalid=\"false\" value=\"\" type=\"text\" name=\"tel-1\" \/><\/span>\n\t\t\t<\/p>\n\t\t<\/div>\n\t\t<div class=\"column-c2\">\n\t\t\t<p>MESSENGER\n\t\t\t<\/p>\n\t\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"message-1\"><textarea cols=\"40\" rows=\"10\" maxlength=\"2000\" class=\"wpcf7-form-control wpcf7-textarea wpcf7-validates-as-required form-message\" aria-required=\"true\" aria-invalid=\"false\" name=\"message-1\"><\/textarea><\/span>\n\t\t\t<\/p>\n\t\t<\/div>\n\t<\/div>\n\t<div class=\"form-row\">\n\t\t<div class=\"column-c1\">\n\t\t\t<p>EMAIL (*)\n\t\t\t<\/p>\n\t\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"email-1\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required form-email\" aria-required=\"true\" aria-invalid=\"false\" value=\"\" type=\"text\" name=\"email-1\" \/><\/span>\n\t\t\t<\/p>\n\t\t<\/div>\n\t\t<div class=\"column-c1\">\n\t\t\t<p>LIST OF EQUIPMENT NEED TO CALIBRATION\n\t\t\t<\/p>\n\t\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"file-1\"><input size=\"40\" class=\"wpcf7-form-control wpcf7-file form-file\" accept=\"audio\/*,video\/*,image\/*\" aria-invalid=\"false\" type=\"file\" name=\"file-1\" \/><\/span>\n\t\t\t<\/p>\n\t\t<\/div>\n\t<\/div>\n\t<div style=\"clear:both\">\n\t<\/div>\n\t<div class=\"form-row\">\n\t\t<div class=\"column-c1\">\n\t\t\t<p><input class=\"wpcf7-form-control wpcf7-submit has-spinner form-submit\" type=\"submit\" value=\"SEND\" \/>\n\t\t\t<\/p>\n\t\t<\/div>\n\t<\/div>\n\t<div class=\"col large-2 small-4 nopad nopadm\">\n\t\t<p>Enter code: <input type=\"hidden\" name=\"_wpcf7_captcha_challenge_captcha-170\" value=\"1019451379\" \/><img loading=\"lazy\" decoding=\"async\" class=\"wpcf7-form-control wpcf7-captchac wpcf7-captcha-captcha-170\" width=\"72\" height=\"24\" alt=\"captcha\" src=\"https:\/\/techmaster.com.vn\/wp-content\/uploads\/wpcf7_captcha\/1019451379.png\" \/><br \/>\n<span class=\"wpcf7-form-control-wrap\" data-name=\"captcha-170\"><input size=\"4\" maxlength=\"4\" class=\"wpcf7-form-control wpcf7-captchar\" autocomplete=\"off\" aria-invalid=\"false\" value=\"\" type=\"text\" name=\"captcha-170\" \/><\/span>\n\t\t<\/p>\n\t<\/div>\n<\/div>\n<!-- Dinhit_End_Contact_Form --><div class=\"wpcf7-response-output\" aria-hidden=\"true\"><\/div>\n<\/form>\n<\/div>\n \t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t <\/div> \t\t<\/div>\n\n\t\t\n<style>\n#section_1611174695 {\n  padding-top: 0px;\n  padding-bottom: 0px;\n}\n#section_1611174695 .ux-shape-divider--top svg {\n  height: 150px;\n  --divider-top-width: 100%;\n}\n#section_1611174695 .ux-shape-divider--bottom svg {\n  height: 150px;\n  --divider-width: 100%;\n}\n<\/style>\n\t<\/section>\n\t \t<section class=\"section home2\" id=\"section_372786102\">\n\t\t<div class=\"bg section-bg fill bg-fill  bg-loaded\" >\n\n\t\t\t\n\t\t\t\n\t\t\t\n\n\t\t<\/div>\n\n\t\t\n\n\t\t<div class=\"section-content relative\">\n\t\t\t \t<div id=\"gap-211537088\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-211537088 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t \t\t<\/div>\n\n\t\t\n<style>\n#section_372786102 {\n  padding-top: 0px;\n  padding-bottom: 0px;\n}\n#section_372786102 .ux-shape-divider--top svg {\n  height: 150px;\n  --divider-top-width: 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