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Projector

A projector and prism technology, applied in the field of projectors, can solve problems such as lack of convenience, volume limitation, loss of competitiveness, etc., and achieve the effect of space configuration and optical path design optimization and volume reduction.

Inactive Publication Date: 2016-07-13
QISDA OPTRONICS (SUZHOU) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the digital micromirror device 10 rotating around a single axis in the traditional projector 1 can only accept incident light as an oblique incident light due to the limitation of physical characteristics.
Therefore, the total reflection prism group 11 is inclined at an angle (for example, 45 degrees) relative to the digital micromirror device 10, which will cause the volume of the traditional projector 1 to be limited. In today's pursuit of miniaturized projectors, the traditional projector 1 is too large The volume will lead to insufficient convenience and gradually lose competitiveness

Method used

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Embodiment Construction

[0023] In order to have a further understanding of the purpose, structure, features, and functions of the present invention, the following detailed descriptions are provided in conjunction with the embodiments.

[0024] Please refer to Figure 2 to Figure 4 , figure 2 is a schematic diagram of the component structure of a projector according to an embodiment of the present invention, image 3 for figure 2 A partially enlarged schematic diagram of the projector component architecture shown, Figure 4 for figure 2 A schematic top view of the projector component architecture shown. Such as Figure 2 to Figure 4 As shown, the projector 2 of this embodiment includes an illumination system 20 , a two-axis flip digital micromirror device 21 , a first prism 22 , a second prism 23 and a lens 24 . The lighting system 20 is adapted to emit incident light A. As shown in FIG. The two-axis inverting digital micromirror device 21 is covered by a coverglass 25 and is suitable for re...

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Abstract

The invention provides a projector, the projector comprises an illuminating system, a two-axle turnover digital micromirror device, a first prism, a second prism and a lens. The illuminating system emits incident light. The digital micromirror device receives the incident light and converts the incident light into imaging light. The two-axle turnover digital micromirror device comprises two opposite first long edges and two opposite first short edges. The first prism is configured between the illuminating system and the two-axle turnover digital micromirror device and comprises a first side and a second side. The second prism is configured between the first prism and the two-axle turnover digital micromirror device and comprises a third side, a fourth side and a fifth side, the incident light passes through the third side and the fourth side and is transmitted to the two-axle turnover digital micromirror device. The imaging light passes through the fourth side, is reflected by the third side, passes through the fifth side and is transmitted to the lens. The fourth side comprises two opposite second long edges and two opposite second short edges, the second long edges are parallel to the first long edges, and the second short edges are parallel to the second short edges. The lens receives and projects the imaging light.

Description

technical field [0001] The present invention relates to a projector, in particular to a projector with a two-axis reversible digital micromirror device. Background technique [0002] The projector uses the imaging principle and uses a digital micro-mirror device (Digital Micro-mirror Device) to project tiny images onto a huge screen and provide enough brightness to share image information with everyone. [0003] figure 1 is a component architecture diagram of a traditional projector 1, such as figure 1 As shown, a conventional projector 1 includes a digital micromirror device 10 , a reflection (Total Internal Reflection, TIR) prism group 11 , a mirror 12 , a lens module 13 and a light pipe (LightPipe) 14 . To define the view direction, figure 1 The right side of shows the three axes of the Cartesian coordinate system. by figure 1 Specifically, the X-axis is the direction to the right from the origin, the Y-axis is the downward direction from the origin, and the Z-axis i...

Claims

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Application Information

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IPC IPC(8): G03B21/20G02B26/08
CPCG02B26/0833G03B21/008G03B21/2066
Inventor 简志雄林明坤
Owner QISDA OPTRONICS (SUZHOU) CO LTD