摘要： 論述了
眼底照相機(jī)的原理和控制
雜光及
鬼像的方法。通過精心設(shè)計(jì)
照明系統(tǒng)的接目物鏡，使其各個(gè)
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(diǎn)板予以消除。同時(shí)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。
l*(Ml=
O { 關(guān)鍵詞：
光學(xué)設(shè)計(jì)； 眼底照相機(jī)； 雜光； 鬼像
?9I=XTR 中圖分類號(hào)： TB851； R774.1 文獻(xiàn)標(biāo)識(shí)碼： B
{P[>B}'rW 文章編號(hào)： 1002-1582(2000)02-0139-03Control of ghost and scatter light in retinal cameraCUI Gui-hua
{@tqeu%IM (
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.
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