LED-based intelligent color assessment cabinet

An LED light source, intelligent technology, applied in the direction of spectrometry/spectrophotometry/monochromator, measuring device, instrument, etc., can solve the problems of short life, incomplete spectrum, low color rendering index, etc., to improve reliability Sex and authenticity, overcoming metamerism, and optimizing the effect of color rendering characteristics

Active Publication Date: 2015-07-01
HANGZHOU EVERFINE PHOTO E INFO
View PDF2 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the LED light source has a rich spectrum, it has disadvantages such as low color rendering index and incomplete spectrum. From the accompanying drawing 5.1 (such as figure 1 It can be clearly seen that the overall effect of the simulation is not very ideal, especially after 630nm the difference in the wavelength band is more obvious, and the high-quality simulated sunlight spectrum cannot be achieved.
The patent with the notification number CN 101883971 A discloses a color

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • LED-based intelligent color assessment cabinet
  • LED-based intelligent color assessment cabinet
  • LED-based intelligent color assessment cabinet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] This embodiment discloses an LED-based intelligent color matching light box, including a box body 1, a light source group 2, a light source control unit 3 and a color filter 4, and the light source group 2 includes an LED light source 2-1 and a tungsten filament lamp 2- 2. The LED light source 2-1 includes a cool white LED light source with a color temperature of 6500k and several single-color LEDs (see Table 1 for details). The tungsten filament lamp 2-2 used here is an incandescent lamp. A color filter 4 is arranged in front of the incandescent lamp, and the color filter 4 filters out the light source of the incandescent lamp before 520nm. Each independent program-controlled driving sub-unit in the light source control unit 3 separately and independently adjusts the luminous intensity and switch of the LED white light source, several single-color LEDs and incandescent lamps.

[0026]In this embodiment, the dimming coefficient of the LED white light source is 0.6, and ...

Embodiment 2

[0031] Such as Figure 4 As shown, this embodiment discloses an arrangement of light source groups in an LED-based intelligent color-matching light box. Wherein the LED light sources 2-1 and the tungsten filament lamps 2-2 are spaced apart and arranged densely; or an equal number of tungsten filament lamps 2-2 are arranged every other 2 LED light sources 2-1, so that the light sources of the light box are more evenly distributed.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an LED-based intelligent color assessment cabinet. A combination of an LED light source and a tungsten lamp is used as a light source for color assessment lighting, and the color assessment light source more excellent in coloring characteristic is obtained by means of combination of spectral power distribution characteristics of the LED light source and the tungsten lamp; since a color filter is arranged in front of the tungsten lamp, more optimized spectral power distribution is obtained to further optimize the coloring characteristics of the color assessment light source. By the aid of light-emitting relative spectral powder distribution data, prestored in a memory unit under drive of different currents or pulse widths, of the LED light source or the tungsten lamp, all types of standard lighting sources can be simulated more accurately, and color assessment realness and reliability are improved.

Description

【Technical field】 [0001] The invention relates to the field of color detection, in particular to a color matching light box. 【Background technique】 [0002] In modern industry, there is an increasing requirement for the consistency and accuracy of the color of similar products. With the continuous development of science and technology, the inspection of product color has initially relied on the inspection personnel to compare the tested sample with the standard color card with the naked eye under ordinary light, so as to distinguish the difference between the tested sample and the standard color card. Color deviation gradually develops to put the tested sample and the standard color card in the color measurement device with built-in standard light source for inspection. The standard light source is often used to simulate artificial light sources under various ambient light. The reflected colors of the surfaces of different objects match, but the spectral power distributions...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01J3/10
Inventor 潘建根黄英
Owner HANGZHOU EVERFINE PHOTO E INFO
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap