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- Rifle scope---PARallax Explained
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2条回复,5646次浏览Whenever rifle scopes ARe discussed, a topic that frequently ARises is pARallax. There seems to be a great amount of misunderstanding and confusion concerning this su ..
- Rifle scope---Reticles: Front or ReAR Decisions-focal plan
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0条回复,4890次浏览Introduction and History There ARe two planes of focus in the common rifle scope (lensmatic), for the placement of the reticle. They ARe commonly called the front foc ..
- Optical Design softwARe: which package do you need?
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0条回复,5027次浏览If you're designing an optical system - be it a single light-bulb or a petawatt laser - there is a softwARe package that can help. But how do you choose the right one ..
- 計算unified glARe rating (UGR)的方法
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0条回复,6665次浏览請問大家,在實際應用上,一般我們是怎麼計算UGR的呢? 謝謝
- Lens having at least one lens centration mARk and methods of making and using same
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1条回复,4918次浏览Claims 1. A method of measuring centration of a lens, the method comprising: placing the lens on a platen, wherein the lens comprises a first major surface and a second ..
- ReARview mirror with lighting assembly
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8条回复,5184次浏览Claims -------------------------------------------------------------------------------- 1. An interior reARview mirror assembly for a vehicle comprising: a mirror elem ..
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