| 摘要 |
A device for use in a camera in conjunction with exposure of a photographic film carried by carrier structure including a frame bounding a light passing zone, includes (a) a template in the form of a locally transparent, generally planar and rectangular sheet adapted to carry an image to be reproduced on the film, (b) there being multiple elongated ribs integral with the sheet, and projecting outwardly from the plane of the sheet, (c) the multiple ribs substantially bounding all of the light passing zone to block light access to that zone in directions parallel to the plane of the sheet, (d) the ribs including a first laterally elongated rib at one end of the template to engage the frame adjacent one end of the template to prevent removal of the template in response to endwise removal of exposed film from the carrier structure, whereby the template sheet remains in the path of light transmission in directions generally normal to the plane of the sheet and to unexposed film carried by the carrier structure.
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