Integrating sphere device for optical measurement

Abstract

The invention discloses an integrating sphere device for optical measurement, relates to the technical field of optical measurement and aims to solve the problems of poor symmetry, ineffective heating control of a light source and non-adjustable flux of a sampling port existing in the conventional integrating sphere device structure. A first half integrating sphere shell and a second half integrating sphere shell of the device are fastened together to form a hollow sphere shell; a central light barrier is fixed at the central position of a joint surface of the first half integrating sphere shell and the second half integrating sphere shell; a joint between an adjustable light source and the first half integrating sphere shell is provided with a sampling hole; a slit device is fixed between the adjustable light source and the sampling hole; a stray light eliminating device is fixed on the second half integrating sphere shell through a screw thread; a position on which the second half integrating sphere shell is fixed with the stray light eliminating device is provided with a light emitting hole; and a detection hole is formed on the lower part of the light emitting hole on the second half integrating sphere shell. The integrating sphere device is suitable for fields such as the measurement of the radiation quantity of a light-emitting diode (LED) or various lamps, color measurement, fluorescence spectroscopy and the like.

Description

technical field [0001] The invention relates to the technical field of optical measurement. Background technique [0002] In the field of optical measurement technology, the stability, orientation, uniformity of the light source and the life of the measurement device have a key impact on the final results obtained by the measurement instrument. [0003] The integrating sphere is a hollow sphere with a highly reflective inner surface. It is a high-efficiency device used to collect the scattered light or emitted light of the sample placed inside or outside the sphere and close to the sampling port. After the collected light is integrated inside the integrating sphere, the optical signal is converted into an analog signal by the detector, and after sampling and amplification, it is converted into a digital signal by A / D, and the luminous flux value is obtained after calculation. [0004] The inner wall of the integrating sphere is coated with a layer of diffuse reflection mate...

AI Technical Summary

Problems solved by technology

[0006] The present invention provides an integrating sphere device for optical measurement in order to solve the problems of poor symmetry of the structure of the existing integrating sphere device, poor control of heat generation of the light source and non-adjustable amount of light passing through the sampling port.

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