Projection device

A projection device and one-to-one correspondence technology, applied in the field of projection, can solve the problems of large volume and achieve the effects of volume reduction, thickness reduction, miniaturization and thinning

Inactive Publication Date: 2016-02-17
LENOVO (BEIJING) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The embodiment of the present application provides a projection device, which is used to solve the technical problem that the projection device in the prior art has a large volume while satisfying the superior performance of the projection device

Method used

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Embodiment Construction

[0034] An embodiment of the present application provides a projection device, including: a lens group including N lenses, configured to project at least one beam of input light input from the first side of the lens group to the lens group, so as to obtain The second side of the group opposite to the first side projects N beams of output light, and N is an integer greater than 1; wherein, all the lenses in the N lenses are located on the first plane; or, the N lenses The P lenses in the lens are located on the first plane, and among the N-P lenses, K lenses are located on a second plane different from the first plane; wherein, P is a positive integer less than N, and K is an integer less than or equal to N-P .

[0035] In the technical solution of the embodiment of the present application, the lens group in the projection device includes a plurality of lenses, and the plurality of lenses are used to project the light beam, so as to increase the area of ​​the light source and re...

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PUM

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Abstract

The invention discloses a projection device. With the projection device adopted, the technical problem of large size of a projection device when satisfying requirements for high performance in the prior art can be solved. The projection device of the invention comprises a lens group containing N lenses which are used for projecting at least one beam of input light entering from the first side of the lens group to the lens group so that N beams of output light can be projected out from the second side of the lens group opposite to the first side, wherein N is an integer greater than 1; and all lenses in the N lenses are located at a first plane, or, P lenses in the N lenses are located in the first plane, and K lenses in N-P lenses are located at a second plane which is different from the first plane, wherein P is a positive integer smaller than N, and K is an integer smaller than or equal to N-P.

Description

technical field [0001] The present invention relates to the field of projection technology, in particular to a projection device. Background technique [0002] In recent years, with the advancement of science and technology, along with the rapid development of the electronic product market, the projection equipment market has also developed rapidly and began to slowly transform, from the previous large-volume projection equipment market to gradually developing in the direction of miniaturization. With the rapid development of the economy and the increase in consumer income, while taking into account the superior performance of projection equipment, consumers are more inclined to miniaturized projection equipment, especially in the business and home markets. Thin, light and small projection equipment is becoming more and more Favored by consumers. [0003] In the prior art, the higher the brightness and resolution of the projection device is, the larger the area of ​​the lig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/20
Inventor 李凡智
Owner LENOVO (BEIJING) LTD
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