Optical projecting system with color drum
A technology of optical projection and the use of color drums, applied in the field of optical projection systems, can solve the problems of inability to provide, structural limitations, complex optical systems, etc.
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[0032] Preferred embodiments of the invention will now be described in detail, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers are used throughout the drawings to apply to the same or like parts.
[0033] The present invention is characterized in that a plurality of color bands are determined such that the angle from one end to the other end of the light projection surface in the color drum does not exceed 30°, thereby preventing color shift. Therefore, the present invention can simply and conveniently provide an optical projection system using a color drum.
[0034] The optimal number of color bands depends on the size of the light projection surface, the position of the light projection surface, the characteristics of the optical system, and the structure of the optical system. The present invention can provide a color drum rolling optical system comprising at least six color ribbons.
[0035] That is, in the op...
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