Indoor full-automatic BRDF (bidirectional reflectance distribution function) measurement device

A measuring device and fully automatic technology, which is applied in the measurement of scattering characteristics, etc., can solve the problems such as difficult to guarantee the measurement accuracy, achieve the effect of improving the collimation and uniformity of the light source, ensuring the measurement accuracy, and improving the positioning accuracy

Active Publication Date: 2012-01-18
ANHUI INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide an indoor fully automatic BRDF measuring device to solve the problem that the measurement accuracy of the indoor BRDF measuring mechanism in the prior art is difficult to guarantee

Method used

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  • Indoor full-automatic BRDF (bidirectional reflectance distribution function) measurement device
  • Indoor full-automatic BRDF (bidirectional reflectance distribution function) measurement device
  • Indoor full-automatic BRDF (bidirectional reflectance distribution function) measurement device

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Embodiment Construction

[0024] Such as Figure 2-Figure 5 shown. Indoor automatic BRDF measurement device, including support plate 1, horizontal turntable 2, lens bracket 3, light source guide rail 4, artificial light source 5, sample stage 6, horizontal turntable 2 and light source guide rail 4 are fixed on support plate 1, lens support 3 is fixed On the horizontal turntable 2 , the sample stage 6 is fixed on the support plate 1 and located in the central through hole of the horizontal turntable 2 . The lens bracket 3 rotates to change the observation zenith angle of the spectrometer lens 7, the horizontal turntable 2 rotates to change the observation azimuth angle of the spectrometer lens 7, and the artificial light source 5 moves along the light source guide rail 4 to change the incident light zenith angle. The movements of the above three are all driven by motors , Upper computer input parameters, fully automatic control of the control box. The optical axis of the artificial light source 5, the...

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Abstract

The invention discloses an indoor full-automatic BRDF (bidirectional reflectance distribution function) measurement device. The device comprises a support panel, a support platform is provided with a horizontal turntable, a sample table is mounted in a central through hole of the horizontal turntable, the horizontal turntable is equipped with a lens bracket on which a lens rotary arm is arranged,a lens rotary arm end is equipped with a spectrograph lens, an optical axis of the spectrograph lens always points to the centre of the sample table, the support platform is further equipped with an optical source guide rail on which an artificial optical source is arranged, the artificial optical source always points to the centre of the sample table. The BRDF measurement device can effectively improve the positioning precision, reduces the measurement period, and improves the optical source collimation and uniformity so as to effectively guarantee the measurement precision.

Description

technical field [0001] The invention relates to the field of optical radiation measuring devices, in particular to an indoor fully automatic BRDF measuring device. Background technique [0002] Most of the reflections of natural objects are non-Lambertian, that is, the reflection characteristics of the target are related to the wavelength and the geometric direction of incidence and reflection. Measuring the bidirectional reflectance distribution function (Bidirectional Reflectance Distribution Function) of an object can accurately describe the directional reflectance heterogeneity of the object, and the BRDF reflects the essential properties of the object. [0003] The measurement principle of BRDF is as follows figure 1 shown. The light source illuminates the object, the sensor observes the object in all directions in space, and processes the reflection values ​​of each observation direction to characterize the directional reflection characteristics of the object, and es...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/47
Inventor 李新郑小兵袁银麟徐骏戚涛
Owner ANHUI INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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