{"id":2413,"date":"2025-06-19T19:35:35","date_gmt":"2025-06-19T11:35:35","guid":{"rendered":"https:\/\/www.ledphotometer.com\/blog\/constant-temperature-integrating-sphere\/"},"modified":"2025-06-27T14:50:12","modified_gmt":"2025-06-27T06:50:12","slug":"constant-temperature-integrating-sphere","status":"publish","type":"post","link":"https:\/\/www.ledtestinstrument.com\/ja\/%e8%a3%bd%e5%93%81\/constant-temperature-integrating-sphere\/","title":{"rendered":"\u6052\u6e29\u7a4d\u5206\u7403"},"content":{"rendered":"

According to the requirement of IEC standards, the standard test temperature is 25\u2103. But high power lamps such as HID lamps and LED outdoor luminaires will produce a lot of heat during the test, thus the temperature inside the integrating sphere can not meet the requirement of IEC standards. LISUN designed the Constant Temperature \u7a4d\u5206\u7403<\/a> (thermostatic sphere or temperature controlled integrating sphere) which keeps the temperature inside of the sphere stable at 25\u2103.<\/p>\n

LISUN IS-*MT Constant Temperature Integrating Sphere is fully meet IES LM-82<\/a> Clause 4.4.<\/p>\n

\u4ed5\u69d8\uff1a<\/strong>
\n\u2022 Diameter: IS-1.5MT (1.5m), IS-1.75MT (\u03a61.75m), IS-2.0MT (\u03a62.0m). PS: Other big size can be designed according to the customer\u2019s requirements.
\n\u2022 Painting material of integrating spheres is according to CIE Pub.No.84 (1989)
\n\u2022 The internal BaSO4 coating: \u03c1 (\u03bb) \u22650.96 (450nm~800nm) and \u03c1 (\u03bb) \u22650.92 (380nm~450nm)
\n\u2022 Fine diffuse reflection: Reflectance \u03c1\u22480.8 and accuracy of \u03c1 (\u03bb) <1.5%
\n\u2022 Build-in all functional lamp testing jigs: E27, T5\/T8\/T12 tubes and the testing holder base for LED and other luminaires. All samples under test can be installed both up and down directions in the sphere.
\n\u2022 Power cable, power terminal and auxiliary lamp position are built-in (Auxiliary lamp is optional).
\n\u2022 Power cable and socket are build-in. It is convenient to power on the lamp under test
\n\u2022 Two \u5149\u691c\u51fa\u5668<\/a>\u00a0ports, one optical fiber<\/a> port and one temperature sensor port are built-in
\n\u2022 Constant temperature range: 25\u2103-55\u2103 (The reference ambient temperature is 25\u00b0C): Temperature rise tolerance: \u00b11\u2103 and temperature drop tolerance: \u00b12\u2103
\n\u2022 Build-in cross laser can help to install the standard lamp and the lamp under test in the center of the integrating sphere (This item is not included for integrating spheres with a diameter less than or equal to 1 meter)<\/p>\n

\n

\"\"<\/p>\n

Cross Laser for Integrating Sphere<\/span><\/p>\n<\/div>\n

\u5fdc\u7528\uff1a<\/strong>
\nThe integrating sphere works with a\u00a0\u5206\u5149\u653e\u5c04\u8a08<\/a> to do the photometric, colorimetric and electrical parameters measurement:
\n\u2022 IS-0.3M\/IS-0.5M is for LEDs, LED modules, mini LED bulbs & other small lamps. The flux testing range is 0.001 to 1,999 lm.
\n\u2022 IS-1.0MT is for CFL or LED bulbs. The flux testing range is 0.1 to 199,990 lm.
\n\u2022 IS-1.5MT\/IS-1.75MT is for CFL, LED bulb and tube, fluorescent lamp, CCFL. The flux testing range is 0.1 to 1,999,900 lm.
\n\u2022 IS-2.0MT is for HID lamps or high power lamps. The flux testing range is 0.1 to 1,999,900 lm<\/p>\n

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 <\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

According to the requirement of IEC standards, the standard test temperature is 25\u2103. But high power lamps such as HID lamps and LED outdoor luminaires will produce a lot of heat during the test, thus the temperature inside the integrating sphere can not meet the requirement of IEC standards. LISUN designed the Constant Temperature Integrating Sphere (thermostatic sphere or temperature controlled integrating sphere) which keeps the temperature inside of the sphere stable at 25\u2103. LISUN IS-*MT Constant Temperature Integrating Sphere is fully meet IES LM-82 Clause 4.4. Specification: \u2022 Diameter: IS-1.5MT (1.5m), IS-1.75MT (\u03a61.75m), IS-2.0MT (\u03a62.0m). PS: Other big size can be designed according to the customer\u2019s requirements. \u2022 Painting […]<\/p>\n","protected":false},"author":1,"featured_media":3382,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[170],"class_list":["post-2413","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-products","tag-is-mt"],"_links":{"self":[{"href":"https:\/\/www.ledtestinstrument.com\/ja\/wp-json\/wp\/v2\/posts\/2413","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ledtestinstrument.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ledtestinstrument.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ledtestinstrument.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ledtestinstrument.com\/ja\/wp-json\/wp\/v2\/comments?post=2413"}],"version-history":[{"count":0,"href":"https:\/\/www.ledtestinstrument.com\/ja\/wp-json\/wp\/v2\/posts\/2413\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ledtestinstrument.com\/ja\/wp-json\/wp\/v2\/media\/3382"}],"wp:attachment":[{"href":"https:\/\/www.ledtestinstrument.com\/ja\/wp-json\/wp\/v2\/media?parent=2413"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ledtestinstrument.com\/ja\/wp-json\/wp\/v2\/categories?post=2413"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ledtestinstrument.com\/ja\/wp-json\/wp\/v2\/tags?post=2413"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}