摘要: 論述了
眼底照相機的原理和控制
雜光及
鬼像的方法。通過精心設(shè)計
照明系統(tǒng)的接目物鏡,使其各個
光學(xué)表面產(chǎn)生的鬼像位于較理想的位置,并通過在照明光路中加入較少的黑點板予以消除。同時通過使照明系統(tǒng)的環(huán)行光闌與照相系統(tǒng)的孔徑光闌處于相互共軛的位置上,達(dá)到消除照明系統(tǒng)產(chǎn)生雜光和鬼像的目的。
9_?<T;]" 關(guān)鍵詞:
光學(xué)設(shè)計; 眼底照相機; 雜光; 鬼像
y4! :l=E^ 中圖分類號: TB851; R774.1 文獻(xiàn)標(biāo)識碼: B
}.(DQwC}1k 文章編號: 1002-1582(2000)02-0139-03Control of ghost and scatter light in retinal cameraCUI Gui-hua
yN)(MmX'1 (
Optical Engineering Dept. Beijing Institute of Technology, Beijing 100081) Abstract: A method for clear up the harmful light such as scatter light and central ghost in retinal camera was introduced. In designing the objective lens of the illumination, we set the ghost generated by some optical surfaces at nearly same position, and then added some black spot plates in the illumination path, also conjugated the ring-like stop of the illumination system with the aperture stop of photography system.
7O8 @T-f+2 Key words: optical design; retinal camera; scatter light; ghost1
aS[y\9(** ePZAi"k 引 言
.Tm.M7 :IU<A
南丰县|
榕江县|
寻甸|
荆门市|
祥云县|
双柏县|
大姚县|
璧山县|
湖南省|
句容市|
新河县|
饶平县|
丽水市|
西青区|
汾阳市|
雷州市|
信丰县|
台东市|
铁岭市|
德保县|
朝阳区|
马边|
会同县|
会泽县|
鸡泽县|
昭通市|
江油市|
高雄县|
关岭|
潍坊市|
重庆市|
习水县|
延庆县|
玉溪市|
白玉县|
丘北县|
江孜县|
东安县|
榆树市|
融水|
遂昌县|