Unverified90% confidenceDecision RuleTime unknown
投影距离与画面尺寸受投射比制约，投射比1.2时投100寸约需2.7米，房间进深不足选短焦(投射比<0.8)或超短焦(投射比<0.3)机型
1
Sources
90%
Confidence
Long-term
Relevance
-
First Seen
Sources
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Unverified投影距离与画面尺寸受投射比决定：投射比1.2的机器投100英寸约需2.6米，小户型（客厅进深＜3米）应选投射比≤1.2或支持超短焦94% similarUnverified投影尺寸与投射比换算：投射比1.2的机器，投100英寸画面需约2.65米距离；小户型或墙距不足选投射比≤1.2或超短焦机型91% similarUnverified投影尺寸与投射比、房间进深强相关：投射比1.2的机器投100寸需约2.65米距离，短焦(0.8)约1.7米，购买前必须实测墙面到摆放点距离91% similarUnverified投射比约1.2:1，投100寸画面大约需要2.7米左右的投距，小客厅或短墙距空间购买前需确认投射距离是否满足需求85% similarUnverified投影比（Throw Ratio）决定所需距离：投影比1.2:1时投100寸约需2.6米，短焦机型（0.8:1以下）可在1.5米内投大画面，卧室/租房小空间应选短焦或超短焦85% similar
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