The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 7265774 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 04, 2007

Filed:

Sep. 02, 2003
Applicant:

Hyung-soo Kim, Suwon, KR;

Inventor:

Hyung-soo Kim, Suwon, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 27/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A beam scanning apparatus having a collimating lens in which a beam emitted from a light source is transformed into at least one of a convergent beam and a parallel beam with respect to an optical axis and outputted towards a slit. The collimating lens being one sheet of a spherical surface lens satisfying the relationship: in which, Rdenotes a curvature radius of a first surface of the collimating lens opposing the light source, Rdenotes a curvature radius of a second surface of the collimating lens opposing the slit, d denotes a center thickness of the collimating lens, and f denotes a focal length from the collimating lens to the light source. By virtue of the structure of the beam scanning apparatus using the collimating lens, deteriorating printing quality due to temperature change is prevented and cost can be saved.


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Kim, Hyung-soo. (2007). Collimating lens of beam scanning apparatus (U.S. Patent No. 7265774). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7265774

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