Research On The Key Technology Of The Color Instrument And Its Application

Color is a psychological physical quantity, and color measurement instrument is an important means to quantify it. As a branch of spectrometer, the color measurement instrument has been closely linked with the development of semiconductor, computer and other related disciplines. With the current advances in semiconductor technology and the development of the new light source technology represented by LED light, the development of color measurement instruments has a new opportunity. Taking the advantage of predominance of technology, we should achieve technological catch-up as soon as possible. It is of great important practical significance, not only for the technology itself, but also for the development of the domestic color measuring instruments industry. This article discussed color measurement instruments related technologies, puts the solutions on some key issues.In the study of the photoelectric integral color measurement instruments, Aimed at the present situation of technology due to low filter matching precision value error of the larger problem, put forward using diffuse incidence of colored glass transmittance as computing algorithm based on the model, the photoelectric integrating color measurement instrument of the matching technology of colored glass filter are discussed. Recommend a kind of the structure of the photoelectric integrating color measurement instrument design. The experiment error value maximum ΔY<0.93,Δx<0.0142,Δ y<0.0172. According to the verification regulation of the JJG595-2002, it is up to the first Grade of the qualified level.In the study of spectral object color measuring instrument, with the prevalence of SCE in the current color measurement instrument of test results under the condition of difference between problem put forward a kind of data are based on the object surface gloss the SCE test data correction of the test structure and algorithm. Composite based on this structure is put forward based on the LED light source and multi-angle sampling reproducibility of light color measurement instrument design scheme of optimization design, USES d:8 geometry, compatible with SCI/SCE measurement conditions. Instrument experiment result error maximum delta Y<0.67,Δx< 0.0048,ΔY<0.0016, the level is qualified. In addition, the current evaluation method of color measurement instrument repeatability is not fully evaluation instrument repeatability, this paper proposes a multi-angle instrument repeatability test methods of optimization.Light source color intensity of illumination in the study of measuring instrument, in view of the instrument by micro spectrometer as spectral sensor cosine response characteristics under the condition of poor situation, this paper proposes a adopts photoelectric integral and spectrophotometry combined with cosine response optimization design. For spectrometry light source color intensity of illumination measurement instruments due to low spectral resolution spectral curve distortion measurement results, the deconvolution algorithm is proposed based on wiener filtering the spectral resolution of optimization techniques used in the design of the instrument. Test through the experiment of optimizing design scheme, the measured results in the maximum color coordinate difference in the different light source test Δx<0.0035,Δ y<0.0047, the maximum temperature deviation is less than 150 K.