Light source for projection device and projection device including same

A technology of projection equipment and light source, which is applied in the field of projection, can solve the problems of low luminous efficiency of light, insufficient color ratio, and color index that does not meet digital movies, etc., and achieves the effect of high purity and improved color characteristics
CN104808424BActive Publication Date: 2017-11-07APPOTRONICS CORP LTD
7 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
APPOTRONICS CORP LTD
Publication Date
2017-11-07

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention brings forward a light source applied to a projection device, and a projection device comprising the same, and belongs to the technical field of projection. The light source comprises a blue light source emitting blue light; a red light source emitting red light; a wavelength conversion layer provided with a wavelength conversion material capable of emitting green light under excitation of the blue light; and a light splitting and compounding assembly for guiding a part of the blue light to excite the wavelength conversion material to generate green light and performing light composition on the residual blue light, the red light emitted by the red light source and the green light emitted by the wavelength conversion layer to generate white light. The device provided by the invention comprises the light source. The white light needed by the projection device can be generated in such a way. According to the invention, the color characteristics of the light source can be greatly improved, the index requirement of a DCI is met, and the light source provided by the invention can enter a cinema to replace a conventional light source.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The present invention relates to the field of projection technology, in particular to a light source for a projection device and a projection device including the same. Background technique

[0002] In recent years, projectors and projection TVs have developed rapidly, and the market is optimistic. Projectors for business use are developing in the direction of small size, light weight and high efficiency. With its high-definition and large-screen advantages, projection TV is being vigorously developed by major home appliance companies in the world. Professionals predict that with the popularization of products and the reduction of costs, projection TV will become the mainstream of large-screen TVs for families. The key component of passive light-emitting projectors and projection TVs - the light source, has also received great attention from related industries.

[0003] Laser light source mainly refers to the electric light source that uses excited ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More