iris diaphragm

基本解釋

Built-in optical system and adjustable iris diaphragm with clear image.
內(nèi)置式顯微光學(xué)系統(tǒng)及光欄,像質(zhì)清晰。
Iris diaphragm: The adjustable hole in a camera to control the amount of light passing through the lens. See Diaphragm.
虹彩光圈:相機(jī)上可供調(diào)校的孔，它控制穿過(guò)鏡頭的光量。參閱光圈。
Stop Down: To decrease the diameter of the light-admitting orifice of a lens by adjustment of an iris diaphragm.
縮小光圈：鏡頭的焦距和光圈的有效直徑之間的關(guān)系。一可調(diào)節(jié)的彩虹光闌，減少透鏡光孔的直徑。
IOL with iris diaphragm was implantated after cataract aspiration with aniridia and coloboma of the iris on 12 children (12eyes).
方法對(duì)12例(12只眼)伴無(wú)虹膜或虹膜缺損的先天性或外傷性白內(nèi)障兒童施行白內(nèi)障注吸術(shù)和帶虹膜隔人工晶狀體植入術(shù)。
When a tiny servomotor compresses a circular periphery seal that acts like an iris diaphragm, the shape of the membrane grows convex, modifying the fluidic lens's focal length.
小型伺服馬達(dá)壓下類似虹膜開(kāi)口的圓圈形封墊時(shí)，薄膜會(huì)變成凸形，進(jìn)而改變液體透鏡的焦距。

an adjustable diaphragm that regulates the amount of light entering an optical instrument, esp a camera. It usually consists of a number of thin metal leaves arranged so that they open out into an approximately circular aperture (Sometimes shortened to iris)