Just Normlicht DLS (LED) Color Viewing Light Hybrid 2.0

A light cabinet assures that visual color assessments are done in a consistent and thus objective way, not affected by constantly changing natural or artificial lighting. The use of a color assessment cabinet in quality control is strongly recommended to assure a visual match when compared to data and assessments of a color measuring instrument.

To be able to reliably evaluate the colors of surfaces and materials, natural daylight is unsuitable. In the course of the day – and the year – it constantly changes its spectral configuration (and with that, the respective visual impression). Visual color evaluation is indispensable when it comes to the selection and visual inspection of produced colors and materials. It is only after the visual determination of color that color measurements can take place and limit values can be defined.

Just Normlicht LED color assessment cabinets eliminate product quality and supply chain problems caused by color inaccuracy. Several versions are available to suit your specific needs and can be upgraded using the adJust LEDcontrol Professional software.

Being able to program light colors measured anywhere with a light measuring device offers ideal conditions for color decisions under not only standardized but also special lighting conditions. All possible color inconsistency effects under all kinds of lighting conditions can be simulated.

Metameric colors which appear identical under a certain type of light suddenly show stark contrasts when exposed to a different degree or type of light as the spectral configuration of the light sources and the evaluated materials is in fact different. According to the currently valid norms for visual color evaluation, color samples may look identical when viewed under the light type D65 but can show certain discrepancies under other types of light– that is to say, metamerism becomes visible. The Just Normlicht standardized lighting devices give the viewer the chance to promptly recognize metamerism in time.

Just Normlicht has developed an LED light source that fulfills the high requirements for color assessment of all industries where color is crucial. To control the LED properties, Just Normlicht has developed a complex multilevel calibration procedure that calibrates each single LED light source and stores the spectral properties in the unit’s electronic controls.

Features:

• Perfect simulation of any standard illuminant (adJust LEDcontrol Professional Software required):
  • D50
  • D65
  • D75
  • Incandescent A
  • plus many more
• Dimmer and luminance control
• Controlled UV content for recognition of fluorescence (OBA´s) (adJust LEDcontrol Professional Software required)
• Viewing area of 15" x 25" x 14" or 28" x 37" x 25"
• Independent selection of color temperature or chromaticity coordinates (adJust LEDcontrol Professional Software required)
• Unique LED calibration method (patent pending)

In order to view your samples objectively without the influence of surrounding or background colors, the interiors of the cabinets are finished in a neutral, matte gray.

The booth is suitable for all industries and applications where there is a need to maintain color consistency and product quality, such as textile, automotive, ceramics, cosmetics, dyeing, food, footwear, inks, packaging, and printing.

In addition to the above mentioned features, the LED Color Viewing Light Hybrid offers three additional fluorescent light tubes (by standard TL84 but other fluorescent types may be chosen) to accurately simulate fluorescent lighting.

JUST Normlicht Technology Achievements

With the LED Color Viewing Light you have complete control of the illumination using LED lighting for color evaluation. To control the LED properties to the vast requirements of Just Normlicht, a complex multilevel calibration procedure was developed that calibrates each single LED light source and stores the spectral properties in the unit’s electronic controls.

A second advantage of Just Normlicht LED technology is a lifetime at least 10 times longer than that of traditional fluorescent lamps. This means not only stable, unchanging quality of light over a very long time period, but also a high savings on replacement lamps. Another advantage to keep in mind is the environmental benefit of LED technology. By not using mercury and only a very little amount of phosphors, which are both major components of fluorescent lamps, the LED technology reduces the amount of hazardous waste being disposed of in landfills.

Just LED technology is not only exceeding the conventional standardized lighting technology in light quality, but is now also able to replicate a tremendous color space with the highest quality, meaning a CRI between 90 and 100 and a Metamerism Index < 1. With this multispectral LED light source, Just Normlicht is creating a color gamut larger than sRGB and is now able to replicate not only standardized light sources like D50 or D65 for the graphic arts industry but also other light sources like A, C, D55, D75 and any other white or colored light. To avoid metameric failure caused by optical brightening agents, the UV-content in the light source is also included.

Software

The optional adJust LEDcontrol Professional software unlocks the LED Color Viewing Light's full potential. The software gives you complete control of the LED properties, as opposed to being limited to the 3 preprogrammed lighting options. Upgrade to LEDcontrol to simulate an almost endless amount of illuminants as well as any color in a gamut larger than sRGB.