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Color wheel dynamic balancing improving method

A color wheel and substrate technology, used in optics, instruments, projection devices, etc., can solve the problems of rising color wheel costs, lowering product quality, and unbalanced processing, reducing production costs, improving production efficiency, and reducing workload. Effect

Inactive Publication Date: 2006-12-27
PRECIS NANOTECH SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The problem existing in the prior art is that because the above (2) uses glue in the pasting process, it is difficult to ensure the uniformity and amount of glue applied, and the sliding fit between the motor shaft and the substrate causes a large amount of eccentricity. , resulting in a large amount of remaining unbalance in the prior art, and a large processing workload. Almost every color wheel must be unbalanced after assembly; and the cost of glue used for bonding is high
In the whole production process, the dynamic balance of the color wheel is an important factor that leads to the increase of the cost of the color wheel, low production efficiency and lower product quality

Method used

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  • Color wheel dynamic balancing improving method
  • Color wheel dynamic balancing improving method
  • Color wheel dynamic balancing improving method

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Embodiment Construction

[0022] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0023] Such as figure 1 with figure 2 As shown, the color wheel of the method of the present invention is mainly composed of a motor, one or more optical filters 7 and a substrate 8 thereof, the optical filter 7 is bonded on the substrate 8, the The motor also includes a bearing and a bearing seat 1, a bottom plate 2, a coil 3, a permanent magnet 4, an outer cover 5, an upper cover 6, and a central shaft 9.

[0024] The color wheel of the method of the present invention pastes at least one optical filter 7 along the circumference distribution on a substrate 8, and the optical filter 7 can be a plane composed of multiple blocks of red, green, blue or other colors For an annular or circular sheet structure, the center of the outer circle of the optical filter 7 should coincide with the inner hole of the substrate 8 .

[0025] Then the s...

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PUM

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Abstract

The invention relates to a dynamic balance method of color wheel, which comprises: a, adhering at least one filter sheet on the circumference of base plate; b, adding base plate and filter sheet into heating device to be uniformly heated to one preset temperature; c, mounting the base plate on one motor rotation axle, to be cooled, then fixing the base plate to the rotation axle. The invention uses thermal expanding cold constriction method to mount adhered base plate and filter sheet on the motor, to reduce the imbalance amount caused by the adhesive method, to improve the balance accuracy, reduce cost and improve the producing efficiency.

Description

technical field [0001] The invention relates to a method for improving the dynamic balance of a color wheel, in particular to a method for improving the precision of mechanical assembly gaps by using thermal expansion and contraction assembly, thereby reducing the unbalanced amount of the color wheel. Background technique [0002] A color wheel is set on the optical path of the imaging device of a projection display device (such as a projector and a rear-projection TV), and the color wheel rotates at a high speed under the supervision of the central processing unit. The rotation of the wheel produces continuous colors, which are then processed through the reflection and convergence of the optical system and then projected onto the projection surface (such as a screen or projection wall) through the lens to generate an image. [0003] The production process and method of the existing color wheel are as follows, please refer to the patent No. US868482 for details: (1) Bond the...

Claims

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Application Information

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IPC IPC(8): G03B21/14G02B27/18
Inventor 何国剑田正清
Owner PRECIS NANOTECH SHENZHEN