Lens meter for measuring the optical characteristics of a lens

Details Lens meter for measuring the optical characteristics of a lens Lens meter for measuring the optical characteristics of a lens

1997-03-25

1999-06-29

Kim, Robert

Optics: measuring and testing

Lens or reflective image former testing

For optical transfer function

356125, 356127, G01B 902

Patent

active

059175869

ABSTRACT:
A lens meter is provided in which a beam of light from an illumination optical system (20) is made incident upon a lens (40) to be inspected, the light beam which has passed through the lens (40) is then received by a light receiving sensor (33b) through a lens platform (13) disposed on a lens receiving table (11) and a light receiving optical system (30), and the two-dimensional optical characteristics of the lens (40) are measured from a detection result of the light receiving sensor (33b). In the lens meter, the lens platform (13) is formed to have such an area as to guide light coming from the middle of the lens (40) and from a predetermined range around the middle to the light receiving sensor (33b), and projections (13b) are formed for determining a light reception distance (2) from the lens (40) to a relay lens (32) of the light receiving optical system (30).

REFERENCES:
patent: 5280336 (1994-01-01), Fantone
patent: 5500732 (1996-03-01), Ebel et al.
patent: 5574554 (1996-11-01), Su et al.
patent: 5724122 (1998-03-01), Oskotsky

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