Stereoscopic retinal camera

Details Stereoscopic retinal camera Stereoscopic retinal camera

1992-11-10

1994-10-11

Ben, Loha

Optical: systems and elements

Stereoscopic

Stereo-viewers

359376, 351206, 351216, 354 62, G02R 2722

Patent

active

053552539

ABSTRACT:
A stereoscopic retinal camera which enables the stereoscopic observation of the fundus of the eye and is capable of photographing the stereoscopic picture of the fundus by dividing a light beam reflected by the fundus into two light beams and transmitting the two light beams respectively along the light paths of separate image forming optical systems. And according to the stereoscopic retinal camera, each portion of the fundus and the front portion of the eye is photographed by a focus adjustment device, and an inter-image pitch between a right image and a left image of photographing the fundus and/or the front portion of the eye is corrected by an optical correcting device, whereby the inter-image pitch caused by a difference of refracting power or by a change of stereoscopic visual angle is obtainable not to be changed.

REFERENCES:
patent: 4235540 (1980-11-01), Hanamura et al.
patent: 4634241 (1987-01-01), Kohayakawa et al.

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