Invention Grant
US5771416A Camera having simple and inexpensive finder field frame switching
mechanism
失效
摄像机具有简单而廉价的取景器场帧切换机制
- Patent Title: Camera having simple and inexpensive finder field frame switching mechanism
- Patent Title (中): 摄像机具有简单而廉价的取景器场帧切换机制
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Application No.: US790619Application Date: 1997-01-29
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Publication No.: US5771416APublication Date: 1998-06-23
- Inventor: Hiromu Mukai , Kyoichi Miyazaki , Hideki Nagata
- Applicant: Hiromu Mukai , Kyoichi Miyazaki , Hideki Nagata
- Applicant Address: JPX Osaka
- Assignee: Minolta Co., Ltd.
- Current Assignee: Minolta Co., Ltd.
- Current Assignee Address: JPX Osaka
- Priority: JPX8-014697 19960130; JPX8-014699 19960130; JPX8-014700 19960130; JPX8-015400 19960131; JPX8-015401 19960131
- Main IPC: G03B13/12
- IPC: G03B13/12 ; G03B13/10
Abstract:
A finder has a finder field frame switching mechanism for switching and indicating two field frames relative to a reference field frame. The finder field frame switching mechanism performs switching of one field frame by a mechanical type switching mechanism, and switching of another field frame by liquid crystal. As a result, an inexpensive finder field frame switching mechanism of a simple structure can be provided.
Public/Granted literature
- US5152261A Variable camshaft timing system utilizing changes in length of portions of a chain or belt Public/Granted day:1992-10-06
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