Invention Grant
- Patent Title: Light-emitting element array with micro-lenses and optical writing head
- Patent Title (中): 具有微透镜和光写头的发光元件阵列
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Application No.: US12296234Application Date: 2007-02-21
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Publication No.: US08089077B2Publication Date: 2012-01-03
- Inventor: Kenjiro Hamanaka , Takahiro Hashimoto
- Applicant: Kenjiro Hamanaka , Takahiro Hashimoto
- Applicant Address: JP Tokyo
- Assignee: Fuji Xerox Co., Ltd.
- Current Assignee: Fuji Xerox Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: RatnerPrestia
- Priority: JP2006-102829 20060404
- International Application: PCT/JP2007/053202 WO 20070221
- International Announcement: WO2007/113947 WO 20071011
- Main IPC: H01L29/18
- IPC: H01L29/18 ; H01L33/00 ; H01L29/207 ; H01L27/146
Abstract:
A light-emitting element array with the improvement of the light-emitting efficiency and the improvement of the uneven amount of light is provided.A light-emitting element array comprises a light-emitting portion array consisting of a plurality of light-emitting portions linearly arranged in a main scanning direction, and a micro-lens formed on each of the light-emitting portions, wherein the micro-lens has a shape of the length of a sub-scanning direction different from the length of the main scanning direction, and the length of the sub-scanning direction is longer than the length of the main scanning direction, and is 3.5 times or less of the length of the main scanning direction.
Public/Granted literature
- US20100001296A1 LIGHT-EMITTING ELEMENT ARRAY WITH MICRO-LENSES AND OPTICAL WRITING HEAD Public/Granted day:2010-01-07
Information query
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