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GT1090HDR measured 3,662 ANSI lumens"}]},{"key":"observed.noise_db","label":"Measured noise","value":34,"unit":"dB(A)","standard":"Reviewer SPL meter (distance, weighting recorded)","basis":"measured","mode":null,"conditions":"About four feet (1.2 m) behind the projector, casual measurement in the reviewer's room","sources":[{"url":"https://www.projectorcentral.com/Optoma-GT1090HDR-Short-Throw-Projector-Review.htm","title":"Optoma GT1090HDR Short-Throw Laser Gaming Projector Review (ProjectorCentral)","kind":"review","quote":"I recorded 34dB sitting about four feet behind the projector"}]},{"key":"observed.uniformity_pct","label":"Measured uniformity","value":77,"unit":"%","standard":"Reviewer","basis":"measured","mode":null,"conditions":"Full white field","sources":[{"url":"https://www.projectorcentral.com/Optoma-GT1090HDR-Short-Throw-Projector-Review.htm","title":"Optoma GT1090HDR Short-Throw Laser Gaming Projector Review (ProjectorCentral)","kind":"review","quote":"Brightness uniformity measured at 77%"}]},{"key":"optics.corner_correction","label":"Corner / warp correction","value":"4pt","unit":null,"standard":"Vendor","basis":"rated","mode":null,"conditions":null,"sources":[{"url":"https://region-resource.optoma.com/products/import/Documents/c35ae563-bd3e-49ff-a15f-79c12ae18a74.pdf","title":"Optoma GT1090HDR datasheet (US, 2020)","kind":"spec_sheet_pdf","quote":"Auto keystone and four corner correction"}]},{"key":"optics.fixed_offset_pct","label":"Fixed offset","value":116,"unit":"%","standard":"Vendor (no common convention)","basis":"rated","mode":null,"conditions":null,"sources":[{"url":"https://www.optomausa.com/product/gt1090hdr","title":"Optoma GT1090HDR product page and specifications (US)","kind":"manufacturer_spec_page","quote":"Native offset 116%"}]},{"key":"optics.focal_length_mm","label":"Focal length","value":[7.51,7.51],"unit":"mm","standard":"ISO/IEC 21118 Table 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21118","basis":"rated","mode":null,"conditions":null,"sources":[{"url":"https://www.optomausa.com/product/gt1090hdr","title":"Optoma GT1090HDR product page and specifications (US)","kind":"manufacturer_spec_page","quote":"Power consumption (max) 269W"}]},{"key":"power.watts_standby","label":"Standby power","value":0.5,"unit":"W","standard":"EU 2023/826 (from 9 May 2025)","basis":"rated","mode":null,"conditions":null,"sources":[{"url":"https://region-resource.optoma.com/products/import/Documents/d5cdf646-f9c2-42c8-9917-14d4e62de8e5.pdf","title":"Optoma GT1090HDR datasheet (US, 2021, auto)","kind":"spec_sheet_pdf","quote":"Power consumption <0.5W (standby)"}]},{"key":"safety.iec62471_5_risk_group","label":"Photobiological risk group","value":"RG2","unit":null,"standard":"IEC 62471-5:2015 (image projectors)","basis":"rated","mode":null,"conditions":null,"sources":[{"url":"https://region-resource.optoma.com/products/import/Documents/005b35b2-bdd9-4cf4-a675-985d9fe34065.pdf","title":"Optoma 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