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A contrast adjustment mechanism and projector with the same

A technology for adjusting the mechanism and contrast, which is applied to the components of lighting devices, instruments, lighting and heating equipment, etc., to achieve the effects of reducing production costs, maintaining high contrast work, and effectively blocking light

Active Publication Date: 2018-09-14
SHENZHEN ACTO DIGITAL VIDEO TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a projector contrast adjustment mechanism capable of dispersing and effectively absorbing a large amount of heat emitted by the projector light source device, so as to solve the technical problem of how to fully block the light from the light source device so as to improve the contrast of the projector

Method used

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  • A contrast adjustment mechanism and projector with the same
  • A contrast adjustment mechanism and projector with the same
  • A contrast adjustment mechanism and projector with the same

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Embodiment Construction

[0024] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0025] The implementation of the present invention will be described in detail below in conjunction with specific drawings.

[0026] Such as figure 1 and figure 2 As shown, an embodiment of the present invention provides a contrast adjustment mechanism for a projector, including a driving part 8 and a transmission part 10. The contrast adjustment mechanism also includes a lens system 11. The light emitted by the light source device 1 of the projector passes through the The above-mentioned lens system 11 includes a first lens 4 and a second lens 5 arranged adjacently in sequence in the light dire...

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Abstract

The invention discloses a contrast regulation mechanism and a projector adopting the same. The contrast regulation mechanism comprises a driving component and a transmission component, wherein the contrast regulation mechanism further comprises a lens system; the lens system comprises a first lens and a second lens, which are adjacent to each other and are sequentially arranged on a light source device of the projector in the light direction; the incidence plane and the emergence plane of the first lens are not parallel to each other, the incidence plane and the emergence plane of the second lens are not parallel to each other; the incidence plane of the first lens is parallel to the emergence plane of the second lens; the emergence plane of the first lens is parallel to the incidence plane of the emergence plane of the first lens; the driving component drives the first lens and the second lens to perform relative rotation of separation and superposition via the transmission component and regulates the strength of light passing through the lens system, so that the contrast of the projector is regulated. The lens can completely shield and scatter light emitted by the light source, so that the contrast of the projector is improved.

Description

technical field [0001] The invention relates to the field of projection equipment, in particular to a contrast adjustment mechanism of a projector and a projector with the mechanism. Background technique [0002] With the development of technology, the technical requirements of projectors continue to increase, and the requirements for noise, clarity and contrast of projectors are getting higher and higher. A projector generally includes an illumination mechanism, a light modulation mechanism and a light projection mechanism. The light emitted by the light source device in the lighting mechanism is guided to a display device such as a liquid crystal screen through a series of optical elements. The display device is used as a light modulation mechanism. The light is projected onto the screen through a series of lenses in the light projection mechanism to display the picture. [0003] In the light path of the projector, after the light source device of the lighting mechanism, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21V14/06G03B21/16
Inventor 梁向东梁志强吴邦华
Owner SHENZHEN ACTO DIGITAL VIDEO TECH
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