Invention Grant
- Patent Title: Variable magnification viewfinder device and method for changing luminance of displayed information
- Patent Title (中): 可变倍率取景器装置和改变显示信息亮度的方法
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Application No.: US14256548Application Date: 2014-04-18
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Publication No.: US08977118B2Publication Date: 2015-03-10
- Inventor: Kazunori Tamura
- Applicant: FUJIFILM Corporation
- Applicant Address: JP Tokyo
- Assignee: FUJIFILM Corporation
- Current Assignee: FUJIFILM Corporation
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2011-229567 20111019
- Main IPC: G03B17/20
- IPC: G03B17/20 ; G03B13/02 ; G03B13/06 ; G03B13/10 ; H04N5/222 ; G03B13/12 ; H04N5/232
Abstract:
In a variable magnification viewfinder device, information displayed on a liquid crystal panel and a viewfinder image are combined with each other through a prism. When a variable power lens is inserted in a viewfinder optical path, viewfinder magnification is changed. Based on the change in the viewfinder magnification, brightness of a backlight unit is changed and luminance of the information displayed on the liquid crystal panel is changed. In a viewfinder field of view, the information and the viewfinder image are displayed at substantially the same brightness.
Public/Granted literature
- US20140226054A1 VARIABLE MAGNIFICATION VIEWFINDER DEVICE AND METHOD FOR CHANGING LUMINANCE OF DISPLAYED INFORMATION Public/Granted day:2014-08-14
Information query
