Invention Grant
- Patent Title: Camera matte box
- Patent Title (中): 相机哑光盒
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Application No.: US13861595Application Date: 2013-04-12
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Publication No.: US08903236B2Publication Date: 2014-12-02
- Inventor: Andrew Subratie
- Applicant: Andrew Subratie
- Agency: Fay Sharpe LLP
- Priority: GB1206586.8 20120413
- Main IPC: G03B11/00
- IPC: G03B11/00 ; G03B11/04 ; G03B17/56

Abstract:
A matte box system for a camera is presented, including one or more filter rings each capable of accommodating a filter or filter holder, the filter rings each having a substantially planar forward face and a substantially planar rear face, one face having one or more bearing elements and the other face having a corresponding bearing surface adapted to engage with the bearing element. The bearing surface includes one or more circular or arcuate channels, and the bearing element including a spring-loaded or otherwise biased surface that protrudes from the face and is urged in a generally axial direction to engage with the bearing surface such that the bearing surface and bearing element of consecutive filter rings allow the filter rings to independently rotate about the optical axis, while resisting radial movement of the filter rings.
Public/Granted literature
- US20130272689A1 CAMERA MATTE BOX Public/Granted day:2013-10-17
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