Slit pattern projecting apparatus having alignment detecting mea

Details Slit pattern projecting apparatus having alignment detecting mea Slit pattern projecting apparatus having alignment detecting mea

1979-10-22

1982-11-02

Corbin, John K.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Folding

351 14, 351 16, 354 62, A61B 314, A61B 310, G03B 2900

Patent

active

043570798

ABSTRACT:
A slit lamp device having a slit pattern projecting optical system for projecting an illumination light in a pattern of a slit to a patient's eye. An alignment detecting device is provided for detecting the alignment between the optical axis of the projecting system and the axis of the patient's eye. The device comprises one or more light receiving elements such as phototransistors which are located at one or both sides of the projecting optical axis and in the slit plane.

REFERENCES:
patent: 4175839 (1979-11-01), Muller et al.
patent: 4219258 (1980-08-01), Araki et al.
patent: 4252420 (1981-02-01), Kohayakawa
patent: 4257687 (1981-03-01), Kohayakawa

Affiliated with

Also associated with

Rating

Slit pattern projecting apparatus having alignment detecting mea does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Slit pattern projecting apparatus having alignment detecting mea, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Slit pattern projecting apparatus having alignment detecting mea will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-622124