Registers – Coded record sensors – Particular sensor structure
Reexamination Certificate
2006-06-20
2006-06-20
Kim, Ahshik (Department: 2876)
Registers
Coded record sensors
Particular sensor structure
C235S462420, C235S462430
Reexamination Certificate
active
07063259
ABSTRACT:
An optical device which emits a laser light beam (3) comprises a laser light beam emission source (20)(for example, a semiconductor laser diode) including a source of the laser light beam housed in a package (6) provided with a light beam emission window (11). The emission window is shaped so as to be a diaphragm (12) which selects a predetermined portion of the light beam. The size of the window is smaller than the size of the light beam in a transversal cross section taken at the emission window. Moreover, the device comprises a lens (13) for focusing the portion of the light beam. The focusing lens can in turn be housed in the emission window and be itself a diaphragm. In particular, the lens is a Fresnel or diffractive lens.
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Datalogic S.p.A.
Kim Ahshik
Nixon & Vanderhye P.C.
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