Invention Grant
- Patent Title: Imaging device and focus adjustment method
- Patent Title (中): 成像装置和焦点调整方法
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Application No.: US11939917Application Date: 2007-11-14
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Publication No.: US07880802B2Publication Date: 2011-02-01
- Inventor: Masaaki Toguchi
- Applicant: Masaaki Toguchi
- Applicant Address: JP
- Assignee: Elmo Company, Limited
- Current Assignee: Elmo Company, Limited
- Current Assignee Address: JP
- Agency: Ostrolenk Faber LLP
- Priority: JP2007-000458 20070105
- Main IPC: H04N5/76
- IPC: H04N5/76 ; H04N5/232 ; G03B13/00 ; G03B17/00

Abstract:
In response to the user's short press of one preset button, a video camera according to one aspect of the invention reads out preset values stored in an EEPROM and adjusts the pan position, the tilt position, the position of a zoom lens, the position of a focus lens based on the read-out preset values. A movable range of the focus lens is restricted to a specific limited range between a closer direction end and a background position as a previously focused position. Hill-climbing control is then performed in this restricted movable range. This arrangement effectively ensures quick adjustment of the focus position of the video camera.
Public/Granted literature
- US20080165272A1 IMAGING DEVICE AND FOCUS ADJUSTMENT METHOD Public/Granted day:2008-07-10
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