Light source for precision work

Details Light source for precision work Light source for precision work

2007-05-29

2007-05-29

Alavi, Ali (Department: 2875)

Illumination

Light source and modifier

Plural serial lens elements or components

C362S109000, C362S202000, C359S800000

Reexamination Certificate

active

11028442

ABSTRACT:
The invention provides a light source (1, 200), especially a portable light source (1, 200) used to illuminate a medical or precision mechanical working area, with a casing (2), with a light diode (4) held by the casing (2), with a primary focusing lens (6, 6a) held by the casing (2) in the direction of emissions (2a) from the light emitting diode (4), with a secondary focusing lens (8) held by the casing (2) positioned behind the primary focusing lens (6, 6a) in the direction of emissions (2a) from the light emitting diode (4), and that has a largely cylindrical recess (10), with the characteristic that a floor (12) of the recess (10) facing the primary focusing lens (6, 6a) is curved in the direction of the primary focusing lens (6, 6a).

REFERENCES:
patent: 5042048 (1991-08-01), Meyer
patent: 5173810 (1992-12-01), Yamakawa
patent: 6402347 (2002-06-01), Maas et al.
patent: 6478453 (2002-11-01), Lammers et al.
patent: 203 10 313 (2004-01-01), None
patent: WO 00/24062 (2000-04-01), None

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