Modular blue light optic storage property detector

A test device and optical storage technology, applied in the direction of measurement device, information storage, recording information storage, etc., can solve the problems of dynamic or quasi-dynamic testing powerlessness, inconvenient expansion, upgrade and maintenance, and limiting the use range of the measurement system. External light source interference, easy to expand and upgrade, improve the effect of repeated positioning accuracy

Inactive Publication Date: 2005-03-02
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Application Information

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Problems solved by technology

[0004] 2) Only static tests can be performed on the storage characteristics of optical storage materials, and nothing can be done for dynamic or quasi-dynamic tests;
[0005] 3) The test system uses the sample scanning method for testing, which limits the scope of use of the measurement system; and the degree of modular design is not high, which is not easy to expand, upgrade and maintain

Method used

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  • Modular blue light optic storage property detector
  • Modular blue light optic storage property detector
  • Modular blue light optic storage property detector

Examples

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no. 1 example

[0033] The specific structure of the modular blue light storage performance test device of this embodiment is as follows figure 1 Shown. The modular blue light storage performance test device of the present invention is composed of a laser modulation module 1, a control demodulation module 2, a photodetection module 3, a light spot scanning module 4, and an observation microscope module 6. The laser modulation module 1 includes a laser 101, a laser modulator 102 placed in the light emission direction of the laser 101, a small hole 105, a beam expander 103 and a light modulator controller 104 connected to the light modulator 102. The control demodulation module 2 includes a system controller 202, a signal generator 201 connected to the system controller 202, and a demodulation circuit board 203. The signal generator 201 is connected to the light modulator controller 104 and the demodulation circuit board 203. The light spot detection module 3 includes a photodetector 301, a polari...

no. 2 Embodiment

[0039] The structure of the second specific embodiment is as figure 2 Shown. The characteristic of the modular blue light storage performance test device is that a laser mirror 304 is installed at the exit end of the beam expander 103. The reflection surface of the laser mirror 304 and the splitting surface of the polarization beam splitter 302 are parallel, thus making the optical path of the device happen. Variety. The working principle and usage method are exactly the same as those in the first specific embodiment. The modular blue light optical storage performance test device of the present invention can well study optical storage materials.

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Abstract

A modularized blue light optical storage mechanical property apparatus uses modularized design, comprising laser modulation module, control demodulation module, photoelectric testing module, light spot scanning module and observation micro module. The invention can do static and quasi-dynamic to storage characteristic of blue light optical storage material, using modulation and demodulation technique to eliminate environmental perturbance and millimicron light spot scanning method to increase accuracy of measuring point, with the properties of easy expansion and upgrade, convenient maintenance and high accuracy.

Description

Technical field [0001] The present invention is related to optical storage performance testing, in particular to a modular blue light storage performance testing device. It is mainly used for static and quasi-dynamic testing of storage characteristics of optical storage materials such as blue light write-once, erasable and rewritable. technical background [0002] Optical storage has now become a big industry, and one of the important development trends is shortwave blue light storage. To study blue light storage materials, corresponding test equipment is essential. In the prior art, there is a static test system for storage characteristics of optical storage materials (see invention patent "Static Test System for Storage Characteristics of Optical Storage Materials", application number: 01126359.8). The static test system for storage characteristics of optical storage materials has considerable advantages. Although the functions can be expanded to test the performance of Blu-ray...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/17G01N21/62G11B7/00
Inventor 高秀敏徐文东干福熹周飞张锋杨金涛
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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