发明名称 Camera matte box
摘要 A matte box for mounting on a camera and serving as a lens shade and as a support for filters, special effects, masks and the like. A shell for mounting on a camera and slidingly receiving a tray with the tray adapted for carrying the various filters and masks. A lens shade shell with interchangeable trays for quickly changing filter and/or mask loads.
申请公布号 US4137540(A) 申请公布日期 1979.01.30
申请号 US19770842287 申请日期 1977.10.14
申请人 CURTIS, JACK 发明人 CURTIS, JACK
分类号 G03B11/04;G03B17/12;(IPC1-7):G03B11/00 主分类号 G03B11/04
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