Automatic focusing system for telescopes

Details Automatic focusing system for telescopes Automatic focusing system for telescopes

1988-02-17

1989-02-28

Bovernick, Rodney B.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Combined

351 41, 350548, 350563, 350146, G02C 100, G02C 708, G02B 702

Patent

active

048079855

ABSTRACT:
An automatic focusing system for a terrestrial telescope comprises a frame worn on the head of a person, a fixed frame part mounted to the frame in viewing relationship to an eye of the wearer, a movable lens part carrying a telescopic lens which is slidably movable along a telescopic axis relative to the fixed frame part, an engagement member fixed to the movable lens part, a pendulum sensor mounted to the frame for detecting a change in inclination angle of the head of the wearer, and a drive circuit and motor responsive to the sensor for moving the movable lens part to a lens position corresponding to the head inclination angle detected by the pendulum sensor.

REFERENCES:
patent: 4418990 (1983-12-01), Gerber

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