Light source equipment optical scanner and data reading apparatu

Details Light source equipment optical scanner and data reading apparatu Light source equipment optical scanner and data reading apparatu

1998-06-18

2000-04-18

Ben, Loha

Optical: systems and elements

Lens

Including a nonspherical surface

359719, 359711, 359205, 359206, 359668, 362259, 23546242, G02B 302

Patent

active

060522364

ABSTRACT:
The light source equipment is provided with a light source and an anamorphic single lens. The anamorphic single lens has different refracting powers in the x and y directions orthogonal to each other, and converts a light from the light source to a light beam in a required state. Farther the anamorphic single lens satisfies the following equation :

REFERENCES:
patent: 4253735 (1981-03-01), Kawamura et al.
patent: 4585296 (1986-04-01), Minoura et al.
patent: 4824225 (1989-04-01), Nishioka
patent: 4842388 (1989-06-01), Tanaka et al.
patent: 5081639 (1992-01-01), Snyder et al.
patent: 5506718 (1996-04-01), Takahashi
patent: 5756981 (1998-05-01), Roustaei et al.
patent: 5790576 (1998-08-01), Waarts et al.
patent: 5828480 (1998-10-01), Nakamura et al.

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