Invention Grant
- Patent Title: Projector having focus adjusting section for adjusting projection based on projection distance information, computer program product, and image projecting method
- Patent Title (中): 投影仪具有基于投影距离信息调整投影的焦点调整部分，计算机程序产品和图像投影方法
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Application No.: US12813647Application Date: 2010-06-11
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Publication No.: US09122123B2Publication Date: 2015-09-01
- Inventor: Tadao Takahashi
- Applicant: Tadao Takahashi
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Agency: ALG Intellectual Property, LLC
- Priority: JP2009-140117 20090611; JP2010-128493 20100604
- Main IPC: G03B21/14
- IPC: G03B21/14 ; G03B3/00 ; H04N9/31
Abstract:
A projector includes: a judging section that judges whether or not an event representing an instruction to project a message image containing a character string has occurred; a projection distance information generating section that generates projection distance information representing a projection distance when the event has occurred; a focus adjusting section that carries out focus adjustment for projection based on the projection distance information; and a projecting section that projects the message image after the focus adjustment is started.
Public/Granted literature
- US20100315602A1 PROJECTOR, COMPUTER PROGRAM PRODUCT, AND IMAGE PROJECTING METHOD Public/Granted day:2010-12-16
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