Optical: systems and elements – Compound lens system – Telescope
Reexamination Certificate
2001-03-07
2002-12-10
Nguyen, Thong (Department: 2872)
Optical: systems and elements
Compound lens system
Telescope
C351S047000, C351S059000, C351S158000, C359S407000
Reexamination Certificate
active
06493136
ABSTRACT:
FIELD OF THE INVENTION
This invention related generally to optical devices of the kind used in medical, dental and surgical procedures and, more particularly, to apparatus for mounting such devices onto a conventional pair of eyeglass frames.
BACKGROUND OF THE INVENTION
There does exist ocular/loupe assemblies mounted to eyeglass frames, as described in U.S. Pat. No. 5,381,263, the entire contents of which are incorporated herein by reference. Although such a configuration does provide a stable and multi-adjustable viewing arrangement, it requires the use of dedicated eyeglass frames to receive a particularized mounting structure.
There are also clip-on optical accessories, as known in the art. However, such devices concern general consumer eyewear and not medical or surgical devices. The need remains, therefore, for an optical mounting assembly that may be used with ordinary eyeglass frames, so that medical, dental and surgical practitioners may wear the glasses that they are used to.
SUMMARY OF THE INVENTION
In broad and general terms, this invention combines an optical accessory of the type used by medical professionals with a clip-on mount, enabling the entire assembly to be used with ordinary eyeglass frames. In an alternative embodiment, however, the assembly may be used with specialized frames, in which case the clip-on mount may be removed for a more permanent mounting of the assembly directly to the bridge area of the eyeglass frames.
In different implementations, optical accessories in the form of ocular loupes, head lamps, and miniaturized video cameras may be accommodated according to the invention.
REFERENCES:
patent: 2300364 (1942-10-01), Wagner
patent: 3600069 (1971-08-01), McNeill
patent: 3876295 (1975-04-01), Loughner
patent: 4647165 (1987-03-01), Lewis
patent: 5541767 (1996-07-01), Murphy et al.
patent: 5667291 (1997-09-01), Caplan et al.
patent: 5870166 (1999-02-01), Chang et al.
Chang Byung Jin
Cummings Thomas A.
General Scientific Corp.
Gifford Krass Groh Sprinkle Anderson & Citkowski PC
Nguyen Thong
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