Unverified90% confidenceDecision RuleTime unknown
户外白天或黄昏使用需实测亮度≥300 ISO流明(约700-900光源流明),低于此值在环境光下画面基本不可见,营地投影仪普遍标称虚高,认准ISO/CVIA标准更可靠
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90%
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Long-term
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