Light machine module and projection equipment

Abstract

The invention discloses an optical machine module and projection equipment, and belongs to the technical field of projection. The light machine module comprises a prism beam shrinking assembly and a light valve assembly; the prism beam shrinking assembly comprises a plurality of prisms which are sequentially arranged along a light path, in every two adjacent prisms of the prisms, the incident angle of light beams emitted by one prism irradiating the other prism is larger than or equal to 0 degree and smaller than or equal to 20 degrees, and the light paths of the prisms in the prism beam shrinking assembly are in a broken line shape. According to the light machine module comprising the beam shrinking assembly and the light valve assembly, the beam shrinking assembly comprises the multiple prisms, light beams can be shrunk through the multiple prisms, and due to the fact that the light paths of the multiple prisms are in the broken line shape, the overall length of the multiple prisms can be short, so the length of the light machine module is relatively short, the problem that the length of the light machine module is relatively long in the prior art can be solved, and the effect of shortening the length of the light machine module is realized.

Description

technical field [0001] The present application relates to the field of projection technology, in particular to an optical-mechanical module and projection equipment. Background technique [0002] A projection device is a device capable of providing image images, and the projection device may include components such as a light source, an optical-mechanical module, and a lens assembly. The optical engine module is used to adjust the light emitted by the light source and output it to the lens assembly. [0003] An optomechanical module, including a beam shrinking assembly and a light valve assembly, the beam shrinking assembly includes two lenses on the same optical axis, the two lenses are used to shrink the parallel light provided by the light source, and reduce the beam The processed light is output to the lens assembly. [0004] However, in the above-mentioned beam shrinking assembly, in order to achieve a better beam shrinking effect, the distance between the two lenses ...

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Problems solved by technology

[0004] However, in the above-mentioned beam reduction components, in order to achieve a better beam reduction effect, the distance between the two lenses is usually relatively long, resulting in a longer length of the optical-mechanical module.

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