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中華民國發明專利第 I309729 LED 的快速變焦裝置  功效簡介 ,[object Object],[object Object]
開發背景 美軍在伊拉克作戰:在進城夜戰中,因沙漠多砂,天氣熱,戴夜視鏡,既悶熱起霧又有砂,不適作戰。為了適應現代戰爭的需要,軍隊在槍械方面做了很多研究,也對槍械做了很多的改進。其中的一項是在輕機槍、步槍……的頭部裝上高亮度探照設備,以適應夜間作戰的要求。 在實戰中,驗證了此項改進的重要性,但其中也存在不足之處:手電筒的近距離和遠距離照射不是很理想。為了改進這項不足,設計者在槍械頭部裝上了專門用於近距離照射和遠距離照射兩把手電筒。但是這樣卻加大了操作的繁瑣性及槍械頭部的重量。
需要兩隻手電筒才能實現散焦和聚焦功能 , 雙手電的缺點: 1. 加大了槍械頭部的重量和槍械整體重量 。 2. 操作繁瑣,不利於應變 。 原有的戰術手電筒 :
將聚焦與散焦功能於一支手電筒的優點:  1. 相對雙手電,單手電筒輕便了許多。  2. 瞬間變焦,操作簡單,利於應變。 戰術手電筒 : 散焦 聚 焦
作戰部隊在黃昏城市郊區正準備進入市區,兩名士兵在公路邊警戒,他們似乎發現了馬路的對面有可疑跡象,打開槍頭的戰術手電筒,向目標照射(呈聚焦狀態) 戰術手電筒的應用 面對遠距離目標可以採用聚焦狀態
戰術手電筒的光束很理想,在夜間目標依然一目瞭然。 30 米照射效果
兩名可疑分子受到員警的注意,可疑份子的體型容貌清晰可見。   30 米照射效果
軍警全副武裝破門而入,打開戰術手電筒 (呈散焦狀態),室內一片通明。
進入室內,散光的戰術手電筒猶如一盞高功率的白熾燈,照亮了整個室內環境,使恐怖分子無處可躲。
習知技術 1 -  凸透鏡的成像性質  (1/2) 1. 基礎物理 新文京開發出版 ( 股 )  蔡耀智  2006 年 7 月 20 日 第 119 頁  ISBN 986-150-425-7
習知技術 1 -  凸透鏡的成像性質  (2/2) 1. 基礎物理 新文京開發出版 ( 股 )  蔡耀智  2006 年 7 月 20 日 第 119 頁  ISBN 986-150-425-7
習知技術 2 - 凸透鏡的成像性質 2.  普通物理 三民書局  陳龍英、郭明賢  2005 年 2 月 第 362 頁  ISBN 957-14-4237-2
本發明專利技術的應用 本發明專利增加了 1F~2F 的應用範圍,達到 0~2F 的大範圍變焦;就能量不滅定律,可使用在遠距離聚焦照明 習知技術和公開技術的應用範圍;就能量不滅定律,使用在近距離大範圍散焦照明
[object Object],[object Object],[object Object]
德國  LED LENSER  手電筒散光的光束
德國  LED LENSER 手電筒聚焦的光束
香港 Favour Light 的光斑倍數變化範圍僅有 1~4 倍
香港 Favour Light 的 1 倍光斑
香港 Favour Light 的 4 倍光斑
美國 SUREFIRE   用兩支不同的手電筒來實現遠近照明
 
 
本專利與德國  LED LENSER 光斑大小對比資料
[object Object],結論 結論

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LED zoom device