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short throw projection equipment

A short-focus projection and equipment technology, applied in optics, instruments, projection devices, etc., can solve the time-consuming and labor-intensive problems of projector position adjustment

Active Publication Date: 2016-07-20
HISENSE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a short-focus projection device, which can solve the time-consuming and labor-intensive problem of adjusting the position of the projector under the premise of ensuring the picture quality

Method used

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Embodiment Construction

[0025] For ease of understanding, a short-focus projection device according to an embodiment of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0026] This embodiment is a short-focus projection device, such as figure 1 As shown, including projection screen 2 and projector 3, projection screen 2 is fixedly connected with alignment device 1; as Figure 2-Figure 5 As shown, the aligning device 1 includes an aligning body 10 fixedly connected to the projection screen 2 and an aligning arm 11 hinged to the aligning body 10. The positioning arm 11 maintains a first limiting member with a predetermined opening angle; the projector 3 is provided with a body positioning part that contacts and cooperates with the free end of the positioning arm 11 .

[0027] In this embodiment, the alignment body 10 is fixedly connected to the setting position of the projection screen 2, thereby connecting the alignment device 1 and the projecti...

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PUM

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Abstract

The invention discloses short-focus projection equipment, and relates to the technical field of projection equipment. The short-focus projection equipment can solve the problem that the position adjustment of a projector is time-consuming and labor-consuming. The short-focus projection equipment comprises a projection screen and the projector, and the projection screen is fixedly connected with an aligning device; the aligning device comprises an aligning body fixedly connected with the projection screen and an aligning arm connected with the aligning body in a hinged mode, and a first limit piece used for enabling the aligning arm to keep the predetermined opening angle is arranged at the hinged position of the aligning body and the aligning arm; the projector is provided with a projector body aligning portion making contact with and being matched with the free end of the aligning arm. The aligning device is used for adjusting the relative position of the projection screen and the projector.

Description

technical field [0001] The present invention relates to the technical field of projection equipment, in particular to a short-focus projection equipment. Background technique [0002] With the continuous development of science and technology and the continuous improvement of people's living standards, ordinary long-focus projection equipment can no longer meet people's daily needs, while short-focus projection equipment can obtain larger images at a shorter distance and save space. , small shadow and other advantages, it has won the favor of more and more consumers. [0003] At present, there are "fisheye" short-focus projectors and "reflective" short-focus projectors on the market. When projecting a picture of the same size, the "reflective" short-focus projector is closer to the projection screen and can It basically eliminates problems such as glare and black shadows caused by the projected light shining on the face of the presenter, and at the same time can increase the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B21/14
CPCG03B21/14G03B21/56
Inventor 鲁文生李磊
Owner HISENSE