Lens meter

Details Lens meter Lens meter

1997-12-18

1999-04-20

Pham, Hoa Q.

Optics: measuring and testing

Lens or reflective image former testing

For optical transfer function

356127, G01B 900

Patent

active

058961941

ABSTRACT:
A lens meter is provided which includes a light source portion (20) with a first light source (21) for generating a lens-characteristic measuring light beam (P2) and a second light source (23) for generating a position specifying light beam (P1). A patterning plate (28) with lens-characteristic measuring patterns (28c) and position specifying patterns (28b) is disposed in an optical path (31) of the lens-characteristic measuring light beam (P2) and position specifying light beam (P1) generated by the light source portion (20). The measuring light beam (P2) is projected onto a subject lens (30) set in the optical path (31) so that the images (28c') of the lens-characteristic measuring pattern (28c) are received. The received images (28c') are analyzed, and the lens-characteristic mapping display of the subject lens (30) is performed. In this lens meter, the first and second light sources (21, 23) are separate from each other.

REFERENCES:
patent: 5173739 (1992-12-01), Kurachi et al.
patent: 5521700 (1996-05-01), Kajino et al.

Affiliated with

Also associated with

Rating

Lens meter does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2251398