发明名称 Masking device for creating multiple image in photographs
摘要 A masking apparatus universally adaptable to fit camera lenses for creating multiple exposure photographs including a masking device insertable within commercial filter holders mountable on a lens of a camera. The masking device having at least two apertures formed therein which are alignable with an exposure area of the lens of the camera. Aperture alignment is accomplished by sliding the masking device within the filter holder until the desired aperture is positioned in the desired location.
申请公布号 US5546151(A) 申请公布日期 1996.08.13
申请号 US19940218718 申请日期 1994.03.25
申请人 FORTSON, RAYMOND A. 发明人 FORTSON, RAYMOND A.
分类号 G03B11/00;(IPC1-7):G03B11/00 主分类号 G03B11/00
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