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Annular light source integral sphere structure

A ring light source, integrating sphere technology, applied in photometry, optical radiation measurement, measuring device and other directions, can solve the problems of complex functions of integrating spheres, high cost of use and development, and inability to be widely used, so as to improve accuracy and measurement. efficiency, increasing the number of diffuse reflections, and good irradiance uniformity

Pending Publication Date: 2019-05-10
GUIZHOU UNIV
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a ring-shaped light source integrating sphere structure to solve the inconvenient fixing of the uniform light integrating sphere in the prior art due to the suspension of the baffle in the optical experiment; High, can not be generally used in laboratory optical imaging experiments

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  • Annular light source integral sphere structure
  • Annular light source integral sphere structure

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Embodiment Construction

[0023] An integrating sphere with uniform light source, its internal structure is as follows Figure 1 As shown, it includes an integrating sphere 3 with a uniform reflective material and a non-uniform LED light source 2. A ring-shaped shielding screen 1 is fixed on the left side of the inner wall of the integrating sphere 3 parallel to the cut surface of the integrating sphere; a uniform light source is provided on the right side of the integrating sphere 3. Exit light port 6; a square exit light receiving surface 4 concentric with the exit light port is placed on the exit light receiving surface 4, and an energy detection instrument 5 is fixed on the exit light receiving surface 4.

[0024] The inner surface of the integrating sphere 3 is evenly coated with a reflective material with high reflective properties; the reflective material is usually magnesium oxide or barium sulfate.

[0025] The surface of the ring-shaped shading screen 1 is parallel to the vertical cut plane o...

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Abstract

The invention discloses an annular light source integral sphere structure. The annular light source integral sphere structure comprises an integral sphere (3), and is characterized in that an annularshading screen (1) is fixed on a surface, which is at the left side edge of the inner wall of the integral sphere (3) and parallel to the section cutting surface of the integral sphere; a uniform light source exit light hole (6) is formed at the right side of the integral sphere (3); a homocentric square exit light receiving surface (4) is placed on the uniform light source exit light hole (6); and an energy detection instrument (5) is fixed on the square exit light receiving surface (4). The following problems are solved: because a baffle is suspended, the uniform light integral sphere in theprior art is inconvenient to fix in an optical experiment; the integral sphere is complex in function and relatively high in use development cost; and the integral sphere cannot be generally utilizedin an optical imaging experiment of a laboratory.

Description

technical field [0001] The invention belongs to the technical field of light irradiation uniformity measurement, in particular to an integrating sphere structure of a ring light source. Background technique: [0002] The integrating sphere is a hollow sphere whose inner surface is coated with a uniform diffuse reflection material and has high reflection characteristics, and is often called a homogenizer. Through the diffuse reflection of the incident beam in the integrating sphere enough times, we can rule out the situation that the outgoing beam is not uniform or has a polarization direction due to the light source itself. As a high-efficiency instrument for measuring the optical parameters of illuminants, the integrating sphere is specially used to collect the luminous flux of the light source, and is widely used in the measurement of spectral intensity, spectral power, luminous flux, scatterer distribution, color temperature, color rendering index, electrical characterist...

Claims

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Application Information

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IPC IPC(8): G01J1/06
Inventor 杨晨曾瑞敏
Owner GUIZHOU UNIV
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