Cotton color instrument with LED lighting source
A technology of LED lighting and light source, applied in the direction of color measurement device, color/spectral characteristic measurement, etc., can solve the problems of complex driving circuit system, poor stability, high price, etc., and achieve long-term measurement, high stability, and low cost Effect
Active Publication Date: 2015-03-18
杭州新叶光电工程技术有限公司
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Problems solved by technology
Although the halogen lamp has high stability, it has a short service life and high power consumption; while the pulse xenon lamp has a long service life, but the driving circuit system is complex, the stability is poor, and the price is expensive.
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[0019] Refer to attached picture. The cotton color meter using the LED lighting source provided by the present invention is provided with a cotton sample reflected light signal detector 1, a shutter 2 and a driving motor 20 of the shutter, a stray light stop 3, an LED lighting source 40, a trapezoidal hole stop 5, Test window 7, place cotton sample 8 outside test window 7, and press down with pressing plate 9.
[0020] The light beam that LED illumination light source 40 sends passes through described trapezoidal aperture diaphragm 5 with the incident angle of 45 ° and irradiates test window 7; The reflected light signal of the cotton sample is received by the cotton sample reflected light signal detector 1 through the stray light diaphragm 3, and the shutter 2 is arranged in front of the cotton sample reflected light signal detector 1; the stray light diaphragm 3 is used to eliminate reflected stray light, and the shutter 2 is used to provide the dark signal of the cotton sa...
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Abstract
The invention provides a cotton color instrument with an LED lighting source. The cotton color instrument is low in power consumption, high in stability, long in service life, low in cost and precise in long-term measurement. The cotton color instrument is provided with a cotton sample reflected light signal detector, a shutter, a drive motor of the shutter, stray light stops, an LED lighting source, trapezoid light stops and a test window. The shape of the trapezoid light stops enables light beams which are emitted from the LED lighting source and pass through the trapezoid light stops to right cover the test window. The cotton sample reflected light signal detector is at the bottom of a column-shaped channel. The shutter and the stray light stops are in the column-shaped channel. The cotton color instrument is provided with wall boards on the upper portions of the column-shaped channel, wherein the wall boards are used for forming an inverted frustum-shaped internal space on the upper portion of the cotton color instrument. LED light assemblies are installed on the wall boards. The test window is arranged in an instrument cover plate and above the column-shaped channel. The cotton color instrument is further provided with auxiliary detectors with LED light sources, wherein the outlet ends of light beam shooting channels of the LED light sources are connected to the wall boards respectively.
Description
technical field [0001] The invention relates to a cotton color meter, in particular to a cotton color meter using an LED lighting source. Background technique [0002] Cotton cultivation in my country has a history of about 2,000 years. For cotton quality inspection, cotton is generally divided into different grades according to the maturity degree, color characteristics, ginning quality and other conditions of cotton. Among them, the color inspection of cotton is an important basis for cotton classification. The early cotton color test was mainly determined by the eyes of graders, but the subjective test of human eyes contains human factors, and can only evaluate the color difference of cotton briefly, but cannot perform an absolute test on the color. Therefore, the chromaticity testing instrument based on the visual characteristics of the human eye gradually replaced the visual inspection. The cotton color tester uses a light source to illuminate the cotton sample, uses ...
Claims
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IPC IPC(8): G01J3/46G01N21/27
Inventor 毛滋春赵田冬叶炜
Owner 杭州新叶光电工程技术有限公司