红点镜
红点镜(red dot sight),也叫内红点,部分型号又名反射式瞄准镜(英语:reflector sight 或 reflex sight),是一种无放大率的光学瞄具,有光亮的瞄准点(通常为一红点)。一些望远镜及内置取景器的“傻瓜相机”亦会载有红点镜。
由于红点镜中射入眼睛的光点(光射)永远与红点镜平衡,即使眼睛不在红点镜的中轴上,也能透过红点准确瞄准,可提升高速移动或身体摇晃时的射击精确度,因此被各国大量使用于军事枪械甚至战机的抬头显示器上。另外,特殊光线除了可由发光二极管生成外,亦可由自然光或极低放射性的放射物(半永久有效)提供。
与激光束瞄准差异
红点镜与激光瞄准器不同:激光指示器是一种能将一激光红点投射于目标上的器材,而红点镜则把特殊光线由镀膜镜片(析光镜)点状反射进射手眼睛;所以目标无法发现自己身上有光点。
参见
参考资料
延伸阅读
- Journal of the Military Service Institution of the United States: Volume 37 - Page 552 -THE GRUBB GUN SIGHT (页面存档备份,存于互联网档案馆)
- The Mining engineer, Volume 23 By Institution of Mining Engineers (Great Britain). THE GRUBB SIGHT FOR SURVEYING INSTRUMENTS By Sir HOWARD GRUBB and HENRY DAVIS
- The scientific transactions of the Royal Dublin Society By Royal Dublin Society - A NEW COLLIMATING TELESCOPE GUN SIGHT FOR LARGE AND SMALL ORDNANCE By SIR HOWARD GRUBB FRS Vice President Royal Dublin Society
- John Arne Ingemund Ekstrand's U.S. Patent 3,942,901 for a "Optical sighting instrument with means for producing a sighting mark" filed December 7, 1973
外部链接
- YouTube上的A WWII US Navy Mark VIII reflector sight
- YouTube上的A 1942 Japanese type 98 reflector sight in action
- YouTube上的A red dot sight on an Airsoft gun
- Article on the WWII Maxon M45 machine gun mount with section on the Navy Mark 9 reflector sight (页面存档备份,存于互联网档案馆)
- May-June, 2007 CBS Interactive Business Network article: Seeing red: illuminated reticle sights (页面存档备份,存于互联网档案馆)