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.:
Date of Patent:
Nov. 30, 2004
Filed:
Nov. 12, 2003
Doo-jin Bang, Yongin, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
An apparatus to detect a laser beam at a predetermined location within a light scanning unit of an image forming apparatus in order to synchronize a start position at which an electrostatic latent image is formed on a surface of a photosensitive body is disclosed. The apparatus includes laser beam detection optics, which may be formed of either a single unit lens or a cluster of one or more lenses that are placed in close proximity of each other. The laser beam detection optics receives the laser beam directed in the direction of the photosensitive body at a predetermined location relative to the start position on the photosensitive body, redirects the received laser beam towards a sensor, and focuses the laser beam on the sensing area of the sensor. The close proximity of, or the fact that the laser beam detection optics, minimizes the possibility of misalignment during the assembly that may result in the improper focusing of the laser beam on the sensor sensing area.