Optics: image projectors – Gun – flashlight or battery operated type
Reexamination Certificate
2005-09-06
2005-09-06
Gray, David (Department: 2851)
Optics: image projectors
Gun, flashlight or battery operated type
C353S020000, C353S102000, C353S119000, C362S187000, C362S188000, C362S347000
Reexamination Certificate
active
06939009
ABSTRACT:
A compact work light that generates a light beam having high brightness and high illumination uniformity is disclosed. The work light includes a housing that houses a light source, a light homogenizer and an imaging lens in an operational relationship. The housing is attached to an adjustable mount, which can be attached to a fixed region such as wall, or to a movable support member such as a lamp base. The light source generates light that is uniformized by the light homogenizer. The homogenized light is then imaged by the imaging lens as a highly uniform, bright beam spot having a sharp boundary. The beam spot is formed at a selectable distance from the work light by varying the imaging lens and/or the adjustable mount. The work light is useful for a variety of industrial, professional and personal applications, including but not limited to a reading light, a dentist light, a head lamp, a head light and an optical projector.
REFERENCES:
patent: 3656845 (1972-04-01), Koch-Bossard et al.
patent: 6260974 (2001-07-01), Koyama
patent: 6318863 (2001-11-01), Tiao et al.
Fischer Robert E.
Gortych Joseph E.
Gray David
Koval Melissa J
Optics 1, Inc.
Opticus IP
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