Laser diode scanner with enhanced visibility over extended...

Details Laser diode scanner with enhanced visibility over extended... Laser diode scanner with enhanced visibility over extended...

G - Physics

06

K

352/53.72

G06K 7/10 (2006.01) G06K 9/20 (2006.01)

Patent

CA 1324442

ABSTRACT OF THE DISCLOSURE The visibility of a laser beam emitted by a laser diode in a scanner is enhanced to facilitate aiming the laser beam at a symbol to be read. An aperture stop in an optical train is increased in dimension along a non-scan direction. The magnifi- cation of a focusing lens in the optical train is increased. Laser diode astigmatism is affirmatively used to enhance visibility.

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