Measurement turntable for bidirectional reflection distribution function of sample

A two-way reflection distribution and turntable technology, which is applied in the measurement of scattering characteristics, etc., can solve the problems of high cost and large volume of BRDF measurement turntable, and achieve the effect of low price, moderate size and simple mechanical structure
CN103196871AInactive Publication Date: 2013-07-10HARBIN INST OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HARBIN INST OF TECH
Publication Date
2013-07-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a measurement turntable for a bidirectional reflection distribution function (BRDF) of a sample, which belongs to the technical field of measuring of BRDFs. With measurement turntable provided by the invention, the problems of a great volume and high cost of a conventional BRDF measurement turntable are overcome. The measurement turntable comprises a laser, a detector, a field lens, a first plane mirror, a second plane mirror, a light source support, a horizontal rotary table, a detector mounting rack, a field lens mounting rack, a connecting rod, a sample, a sample holder, a pedestal, a first rotating shaft, two end plates and a second rotating shaft, wherein parallel light beams transmitted by the laser are incident to the second plane mirror after reflection by the first plane mirror, reflected light beams of the second plane mirror are incident to the upper surface of the sample, reflected light beams of the sample are incident to a light receiving surface of the detector after convergence by the field lens, and the detector is located at the focus of the field lens. The measurement turntable provided by the invention is applicable to measurement of the BRDF of the sample.
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Description

technical field

[0001] The invention relates to a turntable for measuring a bidirectional reflection distribution function of a sample, and belongs to the technical field of bidirectional reflection distribution function measurement. Background technique

[0002] The existing bidirectional reflectance distribution function BRDF measurement turntable has the following two types:

[0003] The first is:

[0004] The sample on the BRDF measurement turntable is stationary, the light source and the detector move, and can cover the measurement of the hemispherical space of the sample. It has the following disadvantages:

[0005] (1) The light source needs to be directly installed on the moving device. It is difficult to replace the light source with different wavelengths, and a motor with a large output torque is required to drive it;

[0006] (2) The volume of the device is generally large, and the machining accuracy of the mechanical structure is high, the cost is greatly incre...

Claims

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