[KongchangAI]
Unverified85% confidenceDecision RuleTime unknown

投射面积与距离基本呈线性关系:普通星空投影投射角约60°时,距离3米可覆盖约10-15平米,距离每增加1米面积扩大但单点光斑亮度按平方衰减,卧室天花板投影建议安装距离控制在2.5-3.5米

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