Reflective condensing system for concentrating illumination at an aperture专利检索-透镜印刷显示技术专利检索查询-专利查询网

Reflective condensing system for concentrating illumination at an aperture

阅读：529发布：2023-06-29

专利汇可以提供Reflective condensing system for concentrating illumination at an aperture专利检索，专利查询，专利分析的服务。并且The final condensing lens element, commonly used in a system for concentrating light at an aperture, is replaced by light restricting path means forming a transversely unobstructed, open ended light path. Spaced, opposed front surface mirrors define a portion of the path along which light is reflected back and forth between the mirror surfaces to emerge at the open end as a uniform flood of light. The absence of transverse surfaces avoids any collecting of dirt which would cause streaks to be printed on film printed with the concentrated light.，下面是Reflective condensing system for concentrating illumination at an aperture专利的具体信息内容。

权利要求

1. In an optical system for condensing light from a source and transmitting the same for emergence at an aperture, means forming a transversely unobstructed open ended light path, said light path being bounded throughout substantially the entire length of the path by only two flat front surface mirrors with said surfaces in opposed relationship whereby light directed in the entrant end of said path against one of said surfaces at an angle is reflected to said other into and then reflected back and forth between said surfaces to emerge as a concentrated beam at the exit end of said path, means mounting said front surface mirrors in spaced relationship and inclined towards each other in the direction toward the exit end of said path, means cooperating with said mounting means for setting the angle at which the mirrors are inclined toward each other to accommodate a particular light source, aperture means for engagement by a film at the exit end of said path, said aperture means being adjustable to provide apertures of different dimensions, and laterally enclosed transversely unobstructed passage means completing said path from the adjacent ends of said mirrors to said aperture means whereby no dirt can interfere with the even flooding of said film by light from said path.

2. An optical system as in claim 1 and including a light source, lens means positioned between said light source and said entrant end and formed to transmit light directly from said source into the open end of said light path between and against said opposed wall portions.

3. The optical system of claim 1 wherein the means for setting the angle at which the morrors are inclined toward each other include wedge means on said mounting means.

4. The optical system of claim 1 wherein ends of the mirrors nearest the exit end of the light path are beveled for even light distribution at the aperture.

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Reflective condensing system for concentrating illumination at an aperture

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