发明授权
US4564273A Retinal camera 失效
视网膜相机

Retinal camera
摘要:
A retinal camera wherein an auxiliary lens is provided so as to be free to be let into and out of a light path between the position of an image of a retina formed by an objective and a relay lens so that the front eye part of an eye to be examined can be illuminated brightly and uniformly and an image of the front eye part of a high resolution can be obtained at a high magnification. The auxiliary lens has a negative or positive refracting power. The auxiliary lens having a negative refracting power is let into and out of the light path together with an image rotator so that the image of the front eye part can be observed as an erected image.
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