Transmissive test device and method for fluorescent powder luminescence characteristics based on hyperspectral

Abstract

A hyperspectral-based transmission testing device and method for phosphor luminescence characteristics, involving the field of light-emitting devices, including LED excitation light sources, phosphor sheets, three-dimensional consoles, constant current sources, temperature control modules, microscopes, hyperspectrometers and computers; LED excitation The light source is set on the three-dimensional console; the constant current source is connected to the LED excitation light source; the temperature control module is set on the three-dimensional console; the phosphor sheet is placed directly above the LED excitation light source; the microscope is set above the phosphor sheet; Above the microscope, the hyperspectral instrument is used to collect and process the light transmitted by the microscope and obtain hyperspectral data; the computer is connected to the hyperspectral instrument, and the computer is used to calculate the received hyperspectral data to obtain the optical parameters of the phosphor in the two-dimensional geometric space. The luminescence image at the pixel level of the phosphor and the spectral data on the corresponding pixel can be obtained accurately, so as to accurately obtain the luminescence characteristics of the phosphor in the micron-scale space.

Description

technical field [0001] The invention relates to the field of light-emitting devices, in particular to a hyperspectral-based fluorescent powder light-emitting characteristic transmission testing device and method. Background technique [0002] A light emitting diode (Light Emitting Diode, LED) is a semiconductor light emitting device that converts electrical energy into light energy. In recent years, due to its energy saving, environmental protection, small size, long life, fast response and many other advantages, it has been widely used in mobile phone backlight, display screen, plant lighting, traffic signal, automobile lighting, intelligent lighting and other lighting and The field of application shown. [0003] The current white LED is usually realized by three mainstream methods. The first is that multiple single-color LEDs glow and mix to produce white light. The second is to use 430-470nm blue LEDs to excite yellow phosphors to form white light. It is also the most ...

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Problems solved by technology

[0007] The purpose of the present invention is to solve the problem of fluorescent powder lacking in the measurement of luminous characteristics in micron-scale space in the prior art, to provide a hyperspectral-based fluorescent powder luminous characteristic transmission test device and method, which can accurately obtain phosphor pixel-level luminous images and Obtain the spectral data on the corresponding pixel points, so as to accurately obtain the luminescence characteristics of the phosphor in the micron-scale space

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