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Lens adjusting apparatus

A technology for adjusting devices and lenses, applied in projection devices, installation, optics, etc., can solve the problems that the worm 12 cannot mesh with the rack 161, cannot provide high-resolution positioning, cannot achieve self-locking, etc.

Active Publication Date: 2009-02-25
CORETRONIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the gap between the worm 12 and the rack 161 may not be tightly meshed due to the clearance generated during design or assembly.
Therefore, in the process of transporting the projector, the movable plate 16 will slide and cannot achieve self-locking, resulting in the incomplete engagement of the worm 12 and the rack 161, thus failing to provide high-resolution positioning.

Method used

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  • Lens adjusting apparatus
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Embodiment Construction

[0068]The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments in which the present invention may be practiced. The directional terms mentioned in the present invention, such as "up", "down", "front", "rear", "left", "right", etc., are only referring to the directions attached to the drawings. Accordingly, the directional terms are used to illustrate, not to limit, the invention.

[0069] Figure 2A and 2B A schematic top view and a schematic perspective view of a lens adjustment device according to an embodiment of the present invention are shown respectively. Please also refer to Figure 2A and 2B , the lens adjustment device 100 of the embodiment of the present invention is suitable for a projector (not shown in the figure), and the lens adjustment device 100 includes a first axial adjustment mechanism 110 and a second axial adjustment mechanism 120 to facilitate the user to adjust the lens 200 at the se...

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Abstract

The invention discloses a lens adjusting device including a base, two dead levers, a sliding seat, a first gear train and a second gear train. The two dead levers are respectively fixed on two sides of the base. The sliding seat is arranged on the two parallel dead levers in the first axial direction in a sliding manner. A lens is fixed on the sliding seat, and a tooth row is arranged on one side of the sliding seat. The first gear train is provided with a first gear and a coaxial worm, wherein the first gear is sleeved on one of the dead levers, so that the first gear and the worm can rotate relative to the dead lever. The second gear train is arranged between the dead lever and the tooth row. The second gear train is provided with a worm wheel and a coaxial second gear, wherein the worm is used for driving the worm wheel, and the second gear is used for driving the tooth row, so that the sliding seat can move relative to the two dead levers.

Description

technical field [0001] The invention relates to a lens adjustment device, and in particular to a projector lens adjustment device with high-resolution positioning and self-locking functions. Background technique [0002] At present, the lens of the projector is mostly fixed. Therefore, the user can only adjust the position of the image projected on the screen by adjusting the relative position or angle between the projector and the screen. In order to project a proper image on the screen, the user has to spend considerable time and effort on positioning the projector to adjust the projector to a proper position or angle relative to the screen. [0003] After the position of the projector is fixed, if the image on the screen needs to be adjusted a little higher, the user needs to adjust the height adjustment device arranged on the front foot of the projector to adjust the elevation angle projection direction. However, since the angle between the projector lens and the screen...

Claims

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Application Information

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IPC IPC(8): G02B7/02G03B21/14
Inventor 李锡璜何文卿高福顺
Owner CORETRONIC