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projection device

A projection device and optical axis technology, applied in projection devices, optics, instruments, etc., can solve the problems of small projection range and inconvenient viewing

Active Publication Date: 2016-05-25
SHENZHEN ACTO DIGITAL VIDEO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the projector usually has a projection lens, so it can only image on one projection surface, and the projection range is small, which is inconvenient to watch

Method used

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Embodiment Construction

[0033] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0034] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of ill...

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Abstract

The invention provides a projector. According to the projector, a total-reflection prism is moved so that image light beams of the projector can enter and exit from the total-reflection prism. The total-reflection prism is used for reflecting light so that the light can be divided into two light beams which are projected to a first lens and a second lens respectively. According to the projector, 180-degree projection can be formed by the first lens and the second lens, usage modes are added for a user, the number of projection planes is two, and therefore the projection range is increased. The user can watch at different angles. Besides, the projector can move the total-reflection prism out of the image beams, and the light can be directly projected onto a third lens. In this way, the projector can realize projection on three projection planes which are perpendicular to one another, so that the projection range is increased, and the user can watch more conveniently.

Description

technical field [0001] The present invention relates to an imaging device, in particular to a projection device. Background technique [0002] At present, projection technology is changing with each passing day. With the development of science and technology, projection display technology continues to improve, and projectors are widely used in various fields such as business, education, and home theater. At present, a projector usually has a projection lens, so it can only form an image on one projection surface, and the projection range is small, which is inconvenient to watch. Contents of the invention [0003] Based on this, it is necessary to provide a projection device capable of expanding the projection range. [0004] A projection device comprising: [0005] light source; [0006] a first collimating mirror, arranged on one side of the light source, for converting the light emitted by the light source into parallel light; [0007] a fly lens group, located on th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B21/28
Inventor 金建培
Owner SHENZHEN ACTO DIGITAL VIDEO TECH
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