Range finder system for camera

Details Range finder system for camera Range finder system for camera

1998-01-20

1999-04-20

Perkey, W. B.

Photography

With exposure objective focusing means, focusing aid, or...

Mechanical rangefinder

G03B 1316

Patent

active

058951318

ABSTRACT:
Disclosed is a real-image object optical system 20, which is provided on the eyepiece optical system 28 side from the light path combining element 13, a first liquid crystal shutter 40 is provided for permitting/prohibiting incidence of light from the range finder window 31 to the object optical system, and a second liquid crystal shutter is provided in the vicinity of the image forming plane IM of the object optical system 20 for switching the light transmission range between the full range and a partial range, and by coupling and switching these elements, a superimposed full image and double image are caused to appear using a persistence of vision effect in the eye of the camera user.

REFERENCES:
patent: 3108526 (1963-10-01), Brackett
patent: 4257704 (1981-03-01), Yokota et al.

Affiliated with

Also associated with

Rating

Range finder system for camera does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Range finder system for camera, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Range finder system for camera will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2243049