Optical device having dioptric correction device

Details Optical device having dioptric correction device Optical device having dioptric correction device

1997-10-20

2000-09-19

Spyrou, Cassandra

Optical: systems and elements

Compound lens system

Telescope

359410, 359411, 359412, 359414, 359416, 359422, 345 7, 345 8, 345 9, 345 85, G02B 2300

Patent

active

061221015

ABSTRACT:
An optical device having a dioptric correction device comprises a reference image display unit which is placed in the optical path extending from an object image to the optical system. The reference image is used for dioptric correction. The left and right reference images are different and are displayed on the left and right reference image display units when dioptric correction is performed. The reference image display unit is placed at a predetermined position between the optical system and an image display unit. Since the reference image is positioned at the predetermined position, both of the image of the image display unit and the reference image may be seen clearly.

REFERENCES:
patent: 5231434 (1993-07-01), Kennedy et al.

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