Optometric apparatus

Details Optometric apparatus Optometric apparatus

2007-01-02

2007-01-02

Marmor, II, Charles A (Department: 3735)

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Subjective type

C351S200000, C351S205000

Reexamination Certificate

active

11284849

ABSTRACT:
A subjective optometric apparatus comprises: right-eye and left-eye examination units, each including a test window and optical elements that are manually selectively disposed in the test window; an indicator provided in each examination unit, the indicator being arranged to indicate information on the optical element disposed in the test window and generate fluorescence by ultraviolet light; and an illumination unit which includes a light source and illuminates the indicator with the ultraviolet light.

REFERENCES:
patent: 2329907 (1943-09-01), Jobe et al.
patent: 5130548 (1992-07-01), Sano et al.
patent: 5281984 (1994-01-01), Burton et al.
patent: 2003/0090630 (2003-05-01), Biggins et al.

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