Apparatus for projecting a scene专利检索-彩色滤光阵列摄影专利检索查询-专利查询网

Apparatus for projecting a scene

阅读：608发布：2022-11-21

专利汇可以提供Apparatus for projecting a scene专利检索，专利查询，专利分析的服务。并且A system and apparatus for projecting scenes upon color additive film. This film is typically configured having a filter screen portion overlaying an image carrying base. The filter screen may be formed as an array of parallel color stripes laid down in a repetitive sequence of colors such as the primaries red, green and blue. A diffraction grating of a phase variety is inserted in the optical path of a projector to cause the projection of zero and first order images of a scene recorded upon the film. The diffraction grating incorporates a surface which is sinusoidal in cross section and is designed so as to cause a replication and mutual displacement of a film image resulting in a blending of the components thereof at a display surface.，下面是Apparatus for projecting a scene专利的具体信息内容。

权利要求

1. Apparatus for projecting a scene recorded upon image carrier as an array of regularly spaced serially repetitive color components of selected wavelengths, lambda , comprising: means including an optical objective for projecting said recorded scene through an optical path having an axis Z and providing a magnified image thereof aT an image plane at which x and y axes may be defined; and grating means interposed within and normal to said optical path closely adjacent said optical objective and configured for interposing a medium having a length l height l'' and sinusoidally varying optical thickness, said grating means being spaced from said image plane a distance z, said medium being formed to cause a Fraunhofer form of diffraction of the image projected therethrough and derive zero and first order images, q, of each said color component having a respective intensity pattern at said image plane representable by the expression:

2. The apparatus of claim 1 wherein said grating means is a fully transmissive phase grating.

3. The apparatus of claim 1 in which said grating means is a fully transmissive phase grating having a frequency, f, selected for causing said order image spacing such that any said color component image at said image plane has superposed upon it the image of an adjacent color component.

4. The apparatus of claim 1 in which said grating means is formed upon an optical surface of said optical objective lens system.

5. The apparatus of claim 1 wherein said maximum range alteration, m, is selected having a value of about 140*.

6. The apparatus of claim 1 in which said grating means orientation with respect to said optical path is selectively variable by rotation about said z axis so as to provide for selective tuning of said magnified image.

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