{"id":123,"date":"2026-03-21T11:43:28","date_gmt":"2026-03-21T02:43:28","guid":{"rendered":"https:\/\/www.san-eielectric.co.jp\/am\/?page_id=123"},"modified":"2026-04-28T12:06:28","modified_gmt":"2026-04-28T03:06:28","slug":"2-irradiance-uniformity","status":"publish","type":"page","link":"https:\/\/www.san-eielectric.co.jp\/am\/en\/solar-simulator-performance\/2-irradiance-uniformity\/","title":{"rendered":"Irradiance Uniformity"},"content":{"rendered":"\n<p class=\"has-medium-font-size wp-block-paragraph\">Irradiance uniformity describes the <strong>spatial distribution of irradiance<\/strong> across the illumination plane.<\/p>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\">For photovoltaic measurements and material testing, it is important that irradiance within the <strong>effective irradiation area<\/strong> is sufficiently uniform. Large spatial variations may lead to measurement errors, particularly when evaluating large-area samples.<\/p>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\">Uniformity is evaluated by measuring irradiance at multiple positions within the illumination area and comparing the variation relative to the average value.<\/p>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\"><a href=\"https:\/\/www.san-eielectric.co.jp\/am\/en\/solar-simulator-performance\/\" data-type=\"page\" data-id=\"119\">Return to INDEX<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Irradiance uniformity describes the spatial distribution of irradiance across the illumination plane. For phot [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":119,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-123","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.san-eielectric.co.jp\/am\/wp-json\/wp\/v2\/pages\/123","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.san-eielectric.co.jp\/am\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.san-eielectric.co.jp\/am\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.san-eielectric.co.jp\/am\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.san-eielectric.co.jp\/am\/wp-json\/wp\/v2\/comments?post=123"}],"version-history":[{"count":5,"href":"https:\/\/www.san-eielectric.co.jp\/am\/wp-json\/wp\/v2\/pages\/123\/revisions"}],"predecessor-version":[{"id":1018,"href":"https:\/\/www.san-eielectric.co.jp\/am\/wp-json\/wp\/v2\/pages\/123\/revisions\/1018"}],"up":[{"embeddable":true,"href":"https:\/\/www.san-eielectric.co.jp\/am\/wp-json\/wp\/v2\/pages\/119"}],"wp:attachment":[{"href":"https:\/\/www.san-eielectric.co.jp\/am\/wp-json\/wp\/v2\/media?parent=123"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}