reticle

  reticle

英文名:Reticle
可檢驗解析度和光學傳遞函數
分划板一般安裝在望遠鏡的右目鏡焦平面上,它是一塊極簿的表面刻有分划密位線的薄玻璃,由於這塊薄玻璃理論上講也參與了成像,延長了物鏡的焦距,會對右目鏡的長度有或多或少的影響。分划板對潔凈度要求極高,任何微小的灰塵都會在觀測時產生很大的黑點,同時分划板的安裝位置精度要求極高,因此,盡量不要拆卸,如果拆卸,一定要按原樣復原。
Reticle  
A comparison of different reticles used in telescopic sights. The lower right represents a reticle found in the scope of a Russian SVD sniper rifle."Reticle" redirects here. For the pattern used in photolithography, see photomask.
"Crosshair" redirects here. For the fictional characters in Transformers, see Crosshairs (Transformers).
A crosshair or reticle is a shape superimposed on an image that is used for precise alignment of a device. Crosshairs are most commonly represented as intersecting lines in a "+" shape, though many variations exist, including dots, posts, circles, scales, chevrons, or a combination of each. Most commonly associated with telescopic sights for aiming firearms, crosshairs are also common in optical instruments used for astronomy and surveying, and are also popular in graphical user interfaces as a precision pointer. The crosshair was invented by Robert Hooke, and dates to the 17th century.
The word reticle is from the Latin meaning "net", a network or grid of lines displayed in an optical instrument. The minimum reticle consists of simple "cross-hairs", as described above
上一篇[波片]    下一篇 [威利安]

相關評論

同義詞:暫無同義詞