Pattern projector having a multi-portion projection lens and cam

Details Pattern projector having a multi-portion projection lens and cam Pattern projector having a multi-portion projection lens and cam

1993-05-18

1994-04-19

Perkey, W. B.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

2502014, G03B 1336, G01J 120

Patent

active

053050479

ABSTRACT:
A compact light projection system for auto-focus detection apparatus in which a stripe pattern is projected onto an object in a wide range. The light projection device comprises a chart having a pattern to be detected, an illuminating device for illuminating the chart, and a lens assembly for projecting the pattern. The lens assembly includes a first lens having an optic axis and second and third lenses having optic axes respectively inclining at a predetermined angle to the optic axis of the first lens.

REFERENCES:
patent: 4371261 (1983-02-01), Tsuji
patent: 4634255 (1987-01-01), Suda et al.
patent: 4688920 (1987-08-01), Suda et al.
patent: 4698492 (1987-10-01), Ohtaka et al.
patent: 4699493 (1987-10-01), Koyama et al.
patent: 4748469 (1988-05-01), Tamura
patent: 4774539 (1988-09-01), Suda et al.
patent: 4801963 (1989-01-01), Koyama et al.
patent: 4841326 (1989-06-01), Koyama et al.
patent: 4849782 (1989-07-01), Koyama et al.
patent: 4859842 (1989-08-01), Suda et al.
patent: 4878078 (1989-10-01), Koyama et al.

Affiliated with

Also associated with

Rating

Pattern projector having a multi-portion projection lens and cam does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pattern projector having a multi-portion projection lens and cam, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pattern projector having a multi-portion projection lens and cam will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-23778