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Measuring method of light intensity distribution

A technology of light intensity distribution and measurement method, applied in the direction of completely visual method, can solve the problems of low sensitivity of thermal sensor, narrow light wave band, slow response speed, etc., and achieve high sensitivity, high absorption rate and high resolution. Effect

Active Publication Date: 2015-07-29
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Photon sensors have the advantages of high sensitivity and fast response speed. However, photon sensors require liquid nitrogen cooling, high cost, and narrow detectable light wave bands.
Thermal sensors are low in cost, detectable in a wide band of light waves, and can operate at room temperature. However, thermal sensors have the disadvantages of low sensitivity and slow response speed

Method used

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  • Measuring method of light intensity distribution
  • Measuring method of light intensity distribution
  • Measuring method of light intensity distribution

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Embodiment 1

[0020] Please also refer to figure 1 and figure 2 , the first embodiment of the present invention provides a method for measuring light intensity distribution, the method includes the following steps:

[0021] S1: providing a carbon nanotube array 20, the carbon nanotube array 20 is disposed on a substrate 10, the carbon nanotube array 20 has a first surface 22;

[0022] S2: trimming the first surface 22 of the carbon nanotube array 20 into a flat surface;

[0023] S3: irradiating the first surface 22 treated in step S2 with the light source 30 to be tested, to obtain a carbon nanotube array 20 with different surface morphology; and

[0024] S4: Read out the intensity distribution of the light source 30 to be measured according to the different surface morphology of the carbon nanotube array 20 .

[0025] In step S1, the substrate 10 is an insulating substrate. The material of the substrate 10 can be silicon, silicon dioxide, silicon carbide, quartz, or glass. The thickn...

Embodiment 2

[0041] Please also refer to image 3 and Figure 4 , the second embodiment of the present invention provides a method for measuring light intensity distribution, the method includes the following steps:

[0042] S1: Provide a super-parallel carbon nanotube array 20, the super-parallel carbon nanotube array 20 is disposed on a substrate 10, the super-parallel carbon nanotube array 20 has a flat first surface 22;

[0043] S2: Irradiating the first surface 22 of the super-aligned carbon nanotube array 20 with the light source 30 to be measured to obtain a super-aligned carbon nanotube array 20 with different surface morphology; and

[0044] S3: Read out the intensity distribution of the light source 30 to be measured according to the different surface morphology of the superparallel carbon nanotube array 20 .

[0045] In step S1, the preparation method of the super-aligned carbon nanotube array 20 includes the following steps: (a) providing a flat growth substrate, the growth s...

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Abstract

The invention relates to a method for measuring light intensity distribution. The method includes the following steps that a carbon nano tube array arranged on a substrate is provided; the surface of the carbon nano tube array is trimmed to be a flat surface; a light source to be measured is used for irradiating the surface of the carbon nano tube array, so that a carbon nano tube array with different surface morphologies; the intensity distribution of the light source to be measured is read through the different surface morphology of the carbon nano tube array.

Description

technical field [0001] The invention relates to a method for measuring light intensity distribution, in particular to a method for measuring light intensity distribution by using a carbon nanotube array. Background technique [0002] The direction (angle) in which the light emitted by the light source propagates and the magnitude of its intensity are collectively referred to as "light intensity distribution". [0003] The measurement method of light intensity distribution is basically divided into two types: one is to place the sensor at a certain distance from the sample, and the sensor moves and measures at several points concentrically distributed around the sample to measure the distribution of light intensity; The other is to place the measuring device at different distances from the sample to measure the distribution of light intensity. The measuring device consists of a CCD sensor and an optical system with a super wide-angle prism similar to a fisheye lens. [0004]...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J1/38
Inventor 姜开利朱钧冯辰范守善
Owner TSINGHUA UNIV
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