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Lens adjusting device and projector

A technology for adjusting devices and lenses, which is applied in the field of lenses, and can solve problems such as unfavorable space configuration of other parts and large space occupied by lens adjustment devices.

Inactive Publication Date: 2014-04-09
QISDA OPTRONICS (SUZHOU) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] figure 1 Although the lens adjustment device shown can adjust the direction of the lens, the moving direction of the adjustment screw is the same as the direction in which the lens holder 11 is pushed, which makes the entire lens adjustment device occupy a large space, which is not conducive to the space of other parts. configuration

Method used

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  • Lens adjusting device and projector
  • Lens adjusting device and projector
  • Lens adjusting device and projector

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Embodiment Construction

[0025] In order to have a further understanding of the purpose, structure, features, and functions of the present invention, the following detailed descriptions are given in conjunction with the embodiments.

[0026] figure 2 A schematic diagram showing a viewing angle of an embodiment of the lens adjustment device provided by the present invention, image 3 show figure 2 Schematic diagram of another angle of view of the medium lens adjustment device, Figure 4 show figure 2 A schematic diagram of another angle of view of the lens adjustment device, wherein Figure 4 Lines that are not actually visible are shown in dashed lines. see also Figure 2 to Figure 4 , the lens adjusting device in this embodiment includes a lens fixing base 21 , a fixing frame 22 , an elastic connecting piece 23 and two adjusting screws 24 with cam-shaped nuts.

[0027] The lens mount 21 is used to mount and fix the lens therein. In this embodiment, the lens mount 21 particularly includes a l...

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PUM

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Abstract

The embodiment of the invention provides a lens adjusting device and a projector. The lens adjusting device comprises a lens holder, a fixation frame, an elastic connecting piece and at least two adjusting screws with cam-shaped nuts. Through the elastic force of the elastic connecting piece, the lens holder and the fixation frame are closed. The adjusting screws are screwed on the fixation frame. The cam contour side of the nut of each adjusting screw abuts against the side, which faces the fixation frame, of the lens holder. By rotating the cam-shaped nuts of the adjusting screws, the lens holder is pushed to carry out deflection. According to the embodiment of the invention, the size of the space occupied by the lens adjusting device can be reduced.

Description

technical field [0001] The invention relates to the field of lenses, in particular to a lens adjustment device and a projector. Background technique [0002] In the optical field that needs to use the lens, it is often necessary to adjust the orientation of the lens. For example, in a projector using a DMD, the orientation of the lens needs to be adjusted to make the lens parallel to the DMD. [0003] figure 1 A schematic diagram of a lens adjustment device in the prior art is shown. The lens adjustment device includes a lens fixing base 11, a fixing plate 12 and an adjusting screw 14. The lens fixing base 11 is pressed to the fixing plate 12 by the spring screw 13, and the adjustment The screw 14 is inserted through the fixing plate 12 to adjust the direction of the lens holder 11 , thereby adjusting the direction of the lens fixedly installed in the lens holder 11 so that the lens is parallel to the DMD 15 . [0004] figure 1 Although the shown lens adjustment device ca...

Claims

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Application Information

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IPC IPC(8): H04N5/74G02B7/02
Inventor 萧启宏
Owner QISDA OPTRONICS (SUZHOU) CO LTD
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