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Method for producing color-wheel segments

A technology of plate-shaped and ring-shaped parts, which is used in the production of color wheel sectors

Active Publication Date: 2012-05-23
OERLIKON SURFACE SOLUTIONS AG PFAFFIKON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

so that the columns are easy to fit closely

Method used

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  • Method for producing color-wheel segments
  • Method for producing color-wheel segments
  • Method for producing color-wheel segments

Examples

Experimental program
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Embodiment Construction

[0025] So the serpentine method and the column method can only be combined if the radially broken sides are partially placed next to each other according to the steps proposed by the present invention. For this, there are basically two possibilities: i) the radially broken edges are placed next to each other only to a certain extent, intentionally creating a loss area that is just large enough to allow the use of segmentation methods (e.g. score-break method); ii) transition to a ring section with a modified outer arc edge.

[0026] An example of i) with minimal loss area

[0027] The rings in this example are made from 1 mm thick sheet stock. In this example, the plate is a glass plate for a color wheel with a color filter coating. The annular part to be produced has an outer arcuate edge with a radius of curvature of 40 mm and a central angle of 90°. The radial sides are each 22 mm in length. Allows the curvature of the inner arc edge to match the curvature of the outer ...

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Abstract

Disclosed is a method for producing annulus sections, e.g. for a color wheel, from a plate-shaped substrate. Said method comprises the following steps, among others: setpoint braking edges are disposed such that the annulus sections that are to be separated later on are disposed in columns, the annulus sections within a column being arranged in relation to each other in such a way that the inner arc edge of one annulus section touches the outer arc edge of another arc section at least at some points, thus forming a stretch of a joint setpoint breaking edge, the curve of the annulus sections of adjacent columns being oriented in an alternating fashion. In another step, the annulus sections are separated along the setpoint breaking edges.

Description

technical field [0001] The invention relates to a color wheel of a projector and a manufacturing method thereof. [0002] The invention relates to a color wheel for producing sequential color images, for example in projectors, which can be fabricated by coating and patterning on a disc-shaped glass substrate. But the composition process is especially expensive. Therefore, in practice, the ring part is generally used to form a color wheel. In its manufacture, the annular part is usually divided from the two-color plate, and the divided annular part is fixed on a disc for rotation in such a way that the outer part of the annular part protrudes from the edge of the disc, and the outer edge of the annular part forms a ring. The color wheel produced in this way is inserted into the beam path of the illumination beam, which is transmitted and / or reflected depending on the optical properties of the ring segments actually located in the beam path, for example depending on the wavel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03B33/023G02B7/00C03B33/04
CPCH04N9/3197G03B21/204G02B26/008C03B33/04C03B33/023Y02P40/57C03B33/00G02B7/00
Inventor C·迈森
Owner OERLIKON SURFACE SOLUTIONS AG PFAFFIKON