{"id":510356,"date":"2024-11-05T14:10:33","date_gmt":"2024-11-05T14:10:33","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/cie-0182019\/"},"modified":"2024-11-05T14:10:33","modified_gmt":"2024-11-05T14:10:33","slug":"cie-0182019","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/cie\/cie-0182019\/","title":{"rendered":"CIE 018:2019"},"content":{"rendered":"<p>CIE 018:2019 presents the basic conventions and principles of physical photometry, with the definitions of the photometric units as reformulated in the International System of Units (SI) 2019 and the photometric quantities and spectral luminous efficiency functions for photopic, mesopic and scotopic vision, including 10\u00b0 photopic vision. The relationships between the photometric quantities and the radiometric quantities based on the constant Kcd are described, as well as the relationships between photochemical and photobiological quantities and photometric quantities. The conventions of colorimetry are presented, with the definitions of the colour-matching functions for the 2\u00b0 and 10\u00b0 field of view, tristimulus values, and chromaticity coordinates.<\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>The Basis of Physical Photometry<\/b><\/p>\n<table style=\"width: 100%\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>Published By<\/td>\n<td>Publication Date<\/td>\n<td>Number of Pages<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/pdfstandards.shop\/product-category\/publishers\/cie\/\"><b>CIE<\/b><\/a><\/td>\n<td>2019-05-20<\/td>\n<td>49<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":510365,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2690],"product_tag":[],"class_list":{"0":"post-510356","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-cie","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/510356","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/510365"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=510356"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=510356"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=510356"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}