Invention Grant
US07808547B2 Lens apparatus and image-taking apparatus including drive range limiting function having valid and invalid states
有权
包括具有有效和无效状态的驱动范围限制功能的镜头装置和摄像装置
- Patent Title: Lens apparatus and image-taking apparatus including drive range limiting function having valid and invalid states
- Patent Title (中): 包括具有有效和无效状态的驱动范围限制功能的镜头装置和摄像装置
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Application No.: US10858154Application Date: 2004-06-01
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Publication No.: US07808547B2Publication Date: 2010-10-05
- Inventor: Keisuke Hirai , Kazumasa Yoshikawa
- Applicant: Keisuke Hirai , Kazumasa Yoshikawa
- Applicant Address: JP
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP
- Agency: Rossi, Kimms & McDowell LLP
- Priority: JP2003-157543 20030603; JP2004-139682 20040510
- Main IPC: G03B13/00
- IPC: G03B13/00 ; H04N5/232 ; H04N5/238 ; G03B17/00
Abstract:
A drive control apparatus for a lens apparatus having a zoom lens movable between a telephoto end and a wide-angle end according to the present invention comprises a selecting member which selects a zoom position between the telephoto end and the wide-angle end, a controller which has a drive range limiting function of controlling drive of the zoom lens by using the selected zoom position as a drive end, and a drive range switch member which switches the drive range limiting function between an invalid state and a valid state. The controller drives the zoom lens to the drive end when the drive range limiting function is switched to the valid state.
Public/Granted literature
- US20040246365A1 Lens apparatus and image-taking apparatus Public/Granted day:2004-12-09
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