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Optical element attenuation testing device

A technology of optical components and testing devices, applied in the field of projection display

Active Publication Date: 2016-08-10
HISENSE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the influence of the production base material or coating process, some optical lenses have a rapid attenuation of the transmittance of a certain spectrum, and some optical lenses have a relatively uniform transmittance attenuation of the entire spectrum.

Method used

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  • Optical element attenuation testing device

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] figure 2 It is a structural schematic diagram of Embodiment 1 of the optical element attenuation testing device of the present invention, as figure 2 As shown, the device of this embodiment may include: a light source module 21, an optical element placement rack 22, a light source selection module 23, a first power detection module 24 and a second power detection module 25, wherein the light source module 21 and the light source selection module 23 connect.

[0037] Specifically, the light source module 21 is used to provide a light source for illuminating optical elements for the optical element attenuation testing device.

[0038]The light source selection module 23 is used to select a preset sub-light source module 21', wherein the types of the sub-light source module 21' include monochromatic light source and white light source. The monochromatic light source may include a monochromatic laser light source and a monochromatic LED light source. Since the laser lig...

Embodiment 2

[0049] Figure 4 It is a structural schematic diagram of Embodiment 2 of the optical element attenuation testing device of the present invention, as Figure 4 As shown, the device of this embodiment is in figure 2 On the basis of the device in the above embodiment, it may further include: a power adjustment module 26 . The first power detection module 24 is connected to the power adjustment module 26 , and the power adjustment module 26 is also connected to the light source module 21 .

[0050] Specifically, the first power detection module 24 can send the determined optical power received by the optical element at different times to the power adjustment module 26, and the power adjustment module 26 determines the optical power received by the optical element at different times according to the first power detection module 24. The light power irradiated by the light source is adjusted to the power of the light source provided by the light source module 21, so that the optic...

Embodiment 3

[0068] Figure 5 It is a schematic structural diagram of Embodiment 3 of the optical element attenuation testing device of the present invention, as image 3 As shown, the device of this embodiment is in Figure 4 On the basis of the device in the second embodiment, it may further include: an analysis module 27, wherein the analysis module 27 is respectively connected to the first power detection module 24 and the second power detection module 25 for obtaining the first power The optical power data of the light source detected by the detection module 24 and the second power detection module 25 are analyzed according to the above data to obtain the attenuation curve of the optical characteristic of the optical element.

[0069] Among them, there are optical elements that have different attenuation characteristics when they are irradiated with light of different colors. The light source provided by the light source module 21 can be set as a monochromatic light source in turn, a...

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Abstract

The embodiment of the invention provides an optical element attenuation testing device, which comprises a light source module, an optical element placement frame, a light source selection module, a first power detection module and a second power detection module, and is characterized in that the light source selection module can select to carry out illumination aging of different types of light sources; and the first power detection module and the second power detection module are arranged at two sides of the optical element placement frame respectively. The attenuation of the optical transmittance of the optical elements is acquired through testing of the power detection modules when the optical element is aged under illumination with selected optical spectrum and preset optical power.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of projection display, and in particular to an attenuation testing device for optical elements used in projection equipment. Background technique [0002] Optical lenses are widely used in projection imaging or camera products. Optical lenses can be divided into glass lenses, resin lenses, etc. according to the material, and can be divided into transmission type, reflection type, diffraction type, etc. according to the light processing function. In the projection device, a plurality of optical lenses form a precise optical path to complete the transmission of the light beam, and project the image onto the projection screen through the lens. When optical lenses are irradiated by light beams for a long time, thermal effects will occur, and deformation will occur in high temperature environments, resulting in attenuation changes and deterioration of light processing capabilities, thereby ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M11/02
CPCG01M11/02
Inventor 刘显荣李巍
Owner HISENSE