| 摘要 |
PURPOSE:To prevent generation of moire fringes by placing a rough surface- shaped transparent plate for scattering light over a minute range, between an emitting end of a fiber and a prescribed image forming position, and equalizing a contrast of light and darkness caused by an array of the fiber. CONSTITUTION:An optical image is formed in front of a screen 16 by lenses 14, 15. The front of the screen is formed like a rough surface, therefore, together with an optical image of an object to be photographed 22, a straw bag piled-like pattern of an emitting end 23B of a fiber 23A is formed, but since light which is made incident to the rough surface is brought to irregular reflection over a minute area, respectively, a contrast of light and darkness in an expanse of about a radius of the fiber 23A is equalized, and the straw bag piled-like patterns scarecely appears on the surface of the screen 16, and accordingly, in case when this image is formed on the surface of a film having a color stripe structure by a lens 17, however the color stripe structure of the film 18 may be arrayed, moire fringes are prevented. |
