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Color measurement apparatus

A color measurement and optical measurement technology, applied in the direction of color measurement device, measurement device, optical radiation measurement, etc., can solve the problems of high cost, low signal-to-noise ratio, difficult spectral distribution, etc., to achieve convenient operation, simple operation, energy consumption low effect

Inactive Publication Date: 2016-09-14
HANGZHOU EVERFINE PHOTO E INFO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practical applications, in the red light band range, the spectral energy of LEDs is relatively insufficient, and monochromatic LEDs with a characteristic wavelength above 660nm are relatively rare and difficult to manufacture. Therefore, in actual operation, only through LED combination It is difficult to produce a spectral distribution with sufficient red light and infrared bands by means of a relatively high cost, so in the measurement of relatively high requirements for infrared and infrared spectra, the lighting scheme in CN104501960 A often appears repetitive due to the low signal-to-noise ratio. sex problem

Method used

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Embodiment 1

[0029] Such as figure 1 and 2 As shown, the present embodiment discloses a color measuring device, comprising an integrating sphere 1, an illuminating device 2 and an optical measuring device 3, a reference channel 4, and a baffle plate 5; an illuminating window 1- 1. The lighting device 2 is installed at the lighting window 1-1; the bottom of the integrating sphere 1 is provided with a sampling window 1-2 for collecting the signal of the sample to be tested, and the sample to be tested is directly placed in the sampling window 1-2 during the test The measurement can be started at the position of the integrating sphere 1; a measurement window 1-3 is set at a position 8° away from the normal direction of the center of the sampling window 1-2 on the wall of the integrating sphere 1, and an optical measurement is set on the exit light path of the measurement window 1-3 device 3, wherein the optical detection element of the optical measurement device 3 is a spectroradiometer; in ...

Embodiment 2

[0032] Such as image 3 and 4As shown, the present invention discloses a color measuring device, comprising an integrating sphere 1, an illuminating device 2 and an optical measuring device 3; two illuminating windows (1-1) are arranged on both sides of the integrating sphere 1, and the integrating sphere 1 The bottom is provided with a sampling window (1-2) for collecting the signal of the sample to be measured, and two of the illumination windows (1-1) are symmetrically set about the central normal of the sampling window (1-2); on the wall of the integrating sphere 1 A measurement window 1-3 is provided at a position 8° away from the normal direction of the sampling window 1-2, and an optical measurement device 3 is provided on the outgoing light path of the measurement window 1-3, wherein the optical detection element of the optical measurement device 3 is Spectroradiometer; In addition, integrating sphere 1 is also provided with a special reference channel 4 to monitor th...

Embodiment 3

[0035] Such as Figure 5 and 6 As shown, the present invention discloses a color measurement device, comprising an integrating sphere 1, an illuminating device 2 and an optical measuring device 3; two lighting windows 1-1 are arranged on the wall of the integrating sphere 1, and a useful The sampling window 1-2 is used to collect the signal of the sample under test, and the two illumination windows 1-1 are arranged symmetrically with respect to the normal direction of the sampling window 1-2; an ultraviolet incident window 1-4 is also provided on the wall of the integrating sphere 1 , and at the ultraviolet incident window 1-4, a diaphragm for adjusting the amount of ultraviolet light incident is provided; on the wall of the integrating sphere 1, a measurement window 1-3 is provided at a position 8° away from the normal direction of the sampling window 1-2, In addition, an optical measurement device 3 is provided on the exit light path of the measurement window 1-3, wherein t...

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Abstract

The invention provides a color measurement apparatus. The color measurement apparatus comprises an integrating sphere, an illumination apparatus and an optical measurement apparatus, and is characterized in that the illumination apparatus comprises one or more halogen tungsten lamp illumination units taking halogen tungsten lamps as light emitting sources and one or more LED illumination units taking LED light sources as light emitting sources. The spherical wall of the integrating sphere is provided with one or more illumination windows, and light emitted from the halogen tungsten lamp illumination units and the LED illumination units is incident to the integrating sphere through the same illumination window or different illumination windows. According to the invention, through combining the LED light sources with the halogen tungsten lamps, a spectrum from within an UV scope to an infrared large-wave-band scope is enabled to have sufficient spectral energy distribution, spectrum structure design of illumination light is also facilitated, the spectrum demands for color measurement of various samples are greatly satisfied, and the color measurement apparatus has the advantages of simple operation, flexibility, adjustability and low loss.

Description

technical field [0001] The invention relates to the field of object color measurement, in particular to a color measurement device. Background technique [0002] With the rapid development of modern industry, color and spectral reflectance have become important indicators to measure the surface characteristics of objects. The key to object color measurement is the measurement of the reflected light on the object surface. The most commonly used color measurement device today is the spectrophotometer. Spectrophotometers usually use an integrating sphere to provide diffuse lighting conditions, and use D / 0, D / 8, 45° / 0 and other geometric conditions for measurement. First, the light emitted by the light source is irradiated on the tested sample, and then the The array detector receives the reflected light from the surface of the sample to be measured, and then obtains color parameters such as tristimulus value through spectral measurement and analysis of the reflected light. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J3/46G01J3/02G01J3/10
CPCG01J3/0251G01J3/10G01J3/46
Inventor 潘建根
Owner HANGZHOU EVERFINE PHOTO E INFO
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