LED illuminator with improved beam quality

Details LED illuminator with improved beam quality LED illuminator with improved beam quality

2009-11-23

2011-11-01

Tso, Laura (Department: 2875)

Illumination

Light source and modifier

Plural serial lens elements or components

C362S271000, C362S273000, C362S331000

Reexamination Certificate

active

08047684

ABSTRACT:
An improved illuminator with an adjustable beam pattern to be worn by medical and dental professionals includes a housing, a light-emitting diode (LED) disposed in the housing outputting light through a distal opening in the housing, an achromatic doublet lens mounted in the opening in the housing, and a singlet lens disposed between the LED and the achromatic lens. The distance between the singlet lens and the doublet lens may be adjustable, and/or distance between the LED and the singlet lens may be adjustable, through a threaded connections, for example.

REFERENCES:
patent: 3745993 (1973-07-01), Feinbloom
patent: 5042048 (1991-08-01), Meyer
patent: 5924234 (1999-07-01), Bindon et al.
patent: 2007/0217198 (2007-09-01), Alessio
patent: 2008/0019011 (2008-01-01), Krneta et al.
patent: 2009/0059095 (2009-03-01), Hall et al.

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