Unverified90% confidenceTradeoffTime unknown
流明高不等于照得远，射程由聚光反光杯/透镜决定：泛光头(TIR透镜)照近处一片亮，聚光头(深反光杯)照远处一个点。找人找路选聚光，营地作业选泛光
1
Sources
90%
Confidence
Long-term
Relevance
-
First Seen
Sources
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Unverified射程与泛光是矛盾的：深反光杯（大直径灯头）聚光射程远但近处黑边明显，橘皮反光杯或TIR透镜泛光均匀但射程近，户外找路选聚光、营地照明选泛光90% similarUnverified流明高看得亮但看不远，射程取决于反光杯深度和光斑聚焦，聚光型(TIR/深杯)射程远但泛光弱，泛光型(浅杯)照面广但打不远，露营选泛光、远搜选聚光88% similarUnverified远射聚光与泛光是矛盾的：聚光看得远但视野窄，泛光近距离照明范围大但射程短，营地/近距作业选泛光，找路/搜索选聚光，混合光束档最通用87% similarUnverified泛光+聚光双光源头灯优于单光源：近距离营地作业用泛光（100°以上），远距离寻路用聚光（10°以内），单一广角光束在山径行进时看不清远处路面85% similarUnverified泛光（近光）适合近距离走路看脚下，聚光（远射）适合看远处路况。徒步/露营优先泛光为主，越野下坡和探洞需要聚光+泛光双光源可切换84% similar
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