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Process & Quality Control

Just Normlicht

Coatings & Industry > Color > Color Viewing Box
VISUAL COLOR ASSESSMENT WITH MULTIPLE ILLUMINANTS
Color Viewing Light
To predict and avoid potential color matching issues in visual assessment of colored surfaces and materials, including paints, fabrics, ceramics, metals, plastics and paper, the use of color matching devices equipped with multiple illuminants is indispensable. Such devices are often employed in application areas such as:
  • Research and development
  • Product management
  • Procurement & Supplier specifications
  • Incoming goods inspection
  • Manufacturing process control
  • Quality assurance
  • Technical, Sales and Customer support

Standard illuminants

Illum. Color T°        Definition              Application                Area of application
            (CCT)
A          2856 kelvin   Incandescent lighting  Home                                     Europe, USA
D50      5000 kelvin   CIE defined daylight   Color matching graphic arts       Europe, USA
D65      6500 kelvin   CIE defined                Color matching                         Europe, USA
                               northern daylight        manufacturing industry
D75      7500 kelvin   Daylight                     Color matching manufacturing               USA
                                                                industry in the US (not used anymore)
F10       5000 kelvin   Fluorescent lamp        Offices, Showrooms, Exhibitions             USA
                               similar to daylight
F11       4100 kelvin   Fluorescent lamp        Offices, Showrooms, Exhibitions          Europe
                               (formerly TL84 and U41)
F12       3000 kelvin   Fluorescent lamp          Home                                                 USA
                               (formerly TL83 and U30)
F2         4150 kelvin   Fluorescent lamp          Offices, Showrooms, Exhibitions            USA
                                (formerly CWF)
Horizon  2300 kelvin   Fluorescent lamp           Simulation of dawn                             USA
                                (formerly WWF)
UV-A radiator             Fluorescent lamp        Detection of optical brighteners  Europe, USA
                                (peak wavelength 365 nm)

The viewing booths “BASIC” provide a reliable color assessment between three, four or five illuminants. The illuminants are switched on/off by a switch and the lamp‘s operating life is monitored by a digital hour meter. The compact design of the BASIC Color Viewing Light makes it suitable for small to medium-sized samples, irrespective of the material or intended purpose.
  • Cost-effective entry-level class
  • A choice of 3, 4 or 5 illuminants
  • Digital hour meter for D65
  • Compact design


Color Viewing Light 3 BASIC
Illumination area*: 64 x 33 x 36 cm
Outside dimensions* : 70 x 47 x 43
Illuminants : D65 - A - TL84
* (W x H x D

Color Viewing Light 4 BASIC
Illumination area* : 64 x 33 x 36 cm                             
Outside dimensions*: 70 x 47 x 43
Illuminants : D65 - A - TL84 +UV-A
*(W x  H x D)

Color Viewing Light 5 BASIC
Illumination area* : 64 x 33 x 36 cm
Outside dimensions*: 70 x 47 x 43
Illuminants : D65 - A - TL84 +UV-A + D50
*(W x  H x D)
Color Viewing Light ADVANCED
In the ADVANCED version a sequential order of illuminants can be saved for a recurring matching process. It can also provide mixed light when several light sources are triggered at the same time.
  • 5 illuminants*: D65, D50, TL84, A, UV
  • User-friendly Electronic Control Panel
  • Digital hour meter for all illuminants
  • Mixed light function
  • Storage for 1 light sequence
  • 5 different sizes: S, M, L, XL, XXL

Color Viewing Light S ADVANCED
Illumination area* : 64 x 33 x 36 cm
Illuminants : D50 - D65 - A - TL84 - UV-A
*(W x  H x D)


Color Viewing Light M ADVANCED
Illumination area*: 75 x 41 x 51 cm
Illuminants : D50 - D65 - A - TL84 - UV-A
*(W x  H x D)

Color Viewing Light L ADVANCED
Illumination area*: 125 x 53 x 54 cm
Illuminants : D50 - D65 - A - TL84 - UV-A
*(W x  H x D)

Color Viewing Light XL ADVANCED
Illumination area*: 155 x 76 x 54 cm
Illuminants : D50 - D65 - A - TL84 - UV-A
*(W x  H x D)


Color Viewing Light XXL ADVANCED
Illumination area (W x  H x D): 114 x 80 x 83 cm
Illuminants : D50 - D65 - A - TL84 - UV-A
*(W x  H x D)
Color Viewing Light PROFESSIONAL
The professional version offers many additional features. Illuminants can be dimmed and detailed reports on the matching process can be compiled. This means that all viewing booth parameters such as operating hours, selected illuminant and dimming level can
be recorded in a log report, ensuring a possible repeat of the matching process at a later time. The viewing booth can also be operated remotely via a web-based remote control application and LAN connection by smartphones and Tablet-PCs.

  • Dimmable light of all illuminants (except A)
  • LAN connection
  • Web-based remote control application for
  • smartphones and Tablet-PCs
  • Reporting function
  • Storable brightness value
  • 5 illuminants*: D65, D50, TL84, A, UV
  • User-friendly Electronic Control Panel
  • Digital hour meter for all illuminants
  • Mixed light function
  • Storage for several light sequences
The remote-app can be used to easily select the illuminant via a laptop or smartphone and specify the automatic matching processes. In addition, the viewing booth can be turned on remotely with the browser so that it is immediately available after the warm-up period.

Color Viewing Light S PROFESSIONAL
Illumination area* : 64 x 33 x 36 cm
Illuminants : D50 - D65 - A - TL84 - UV-A
*(W x  H x D)


Color Viewing Light PROFESSIONAL
Illumination area*: 125 x 53 x 54 cm
Illuminants : D50 - D65 - A - TL84 - UV-A
*(W x  H x D)

Color Viewing Light M PROFESSIONAL
Illumination area*: 75 x 41 x 51 cm
Illuminants : D50 - D65 - A - TL84 - UV-A
*(W x  H x D)

Color Viewing Light XL PROFESSIONAL
Illumination area*: 155 x 76 x 54 cm
Illuminants : D50 - D65 - A - TL84 - UV-A
*(W x  H x D)

Color Viewing Light XXL PROFESSIONAL
Illumination area*: 114 x 80 x 83 cm
Illuminants : D50 - D65 - A - TL84 - UV-A
*(W x  H x D)
LED Color Viewing Light

Precise evaluation of colors, surfaces and materials.

LED Technology – Innovation forVisual Color Evaluation
Reproducing an exact color match between a proof or original samples of textiles, plastic parts, lacquered parts, automotive interiors or a print is essential to fulfilling the stricter quality control requirements demanded by today’s clientele. Additional requirements include reducing costs while maintaining consistent color quality throughout the reproduction processes.

While controlling quality with measuring devices is an important step to the reproduction process, it cannot be the only step toward achieving a visual color match!
The biggest influence on matching colors visually is illumination. Incorrect illumination leads to inferior or incorrect results and costly customer complaints throughout the production process.
The Solution: JUST LED Technology JUST Normlicht has now successfully developed a multispectral LED illuminant (Pat. Pend.) that is able to reproduce many different light spectrums with great accuracy. This multispectral LED illuminant can simulate many standard illuminants including D50, D65, A, C, D55, D75 and virtually any other light source with an unmatched spectral accuracy.
JUST LED colorControl are offered in 3 configurations :

1 st Basic : 3 pre-programmed light sources with manual switching and dimming with the built-in control panel.
2 nd Advanced : Includes »adJUST LEDcontrol advanced« software for creating and selecting additional light sources in the available
color space (newly created light sources cannot be stored).
3rd Professional : Includes »adJUST LEDcontrol professional« software for unlimited creation of new light sources. New light sources can be saved to computer and up to 10 illuminants can be programmed into the viewing booth for manual selection with the built in control panel.

LED Color Viewing Light S
Illumination area* : 33 x 38 x 36 cm
(W x H x D)

LED Color Viewing Light M
Illumination area*: 65 x 38 x 36 cm
* (W x H x D)

LED Color Viewing Light M HYBRID
Illumination area*: 65 x 38 x 36 cm
Special features: TL84 (F11)
* (W x H x D)

LED Color Viewing Light XL HYBRID
Illumination area*): 95 x 64 x 73 cm
Special features: TL84 (F11)
* (W x H x D
Color Vision Viewer

with three different light chambers for testing color shifts on identical samples.
Illuminants : TL84 (F11) - A - D65
Illumination area (W x  H x D): je 20 x 48 cm
Garment Viewing Booth

Illumination area (W x H x D): 115 x 165 x 60 cm
Illuminants : D50 - D65 - A - TL84 - UV-A
Color Control Center multiLight

The new Color Control Center multiLight with four light modules for visual color assessment and detection of metameric effects.
The versatile multiLight color viewing light is specifically designed for color matching of large items and surface areas. It is a complete system that creates a standards-conformant viewing environment without the need to construct a room.
Up to three illuminants can be configured from a choice of five (D65, D50, TL84, A, UV). With support for a virtually unlimited number of lights in series, the system can be scale to illuminate entire rooms under defined lighting conditions.

Dimension :
  • Color Control Center multiLight
      Illumination area (W x H x D): 325 x 280 x 235 cm
MULTILIGHT:

  • ƒƒ Lamp housing made of aluminum profile, silver-anodized, 124 x 80 x 16 cm
  • ƒƒ Symmetrical light distribution for reflection-free color matching
  • ƒƒ Maximum output for high illuminance
  • ƒƒ Fitted with 2–3 illuminants for detection of metamerism:
– D65 daylight 6500 kelvin, illuminance 2000/3500 lux
– D50 daylight 5000 kelvin, illuminance 2000/3500 lux
– TL84 / F11 store light 4000 kelvin, illuminance 2000/3500 lux
– A incandescent/halogen light 2856 kelvin, illuminance 2800 lux (with cooling fan)
– Illuminance at a height of 1m above ground level
  • ƒƒ Compliant with ISO 3668; DIN6173-2, and VDA 280 parts 8B, 8C ƒƒ
  • JUST daylight 5000 proGraphic and JUST daylight 6500 proIndustry lamps ensure a precise simulation of daylight illuminants of the quality grade BC (min.) according to CIE 51.2
– measurement log and certificate are included ƒƒmittant
  • ƒƒNo reflection of lamps on matching samples
  • Homogeneous illumination by means of prismatic lenses, UV-transmittant
  • ƒƒDigital hour meter for all illuminants, with notification if a lamp needs to be replaced

Power consumption:
4 kW from multiLight Center when fitted with all 4 color viewing lights

Power supply:
16 A, 3~, either via red CEE plug or direct installation
Symmetrical or asymmetrical light design?

JUST color proof lights fundamentally offer a choice between a symmetrical or an asymmetrical light design. In a modern, symmetrical light, the rays of light are directed onto the viewing surface in diagonal, cross-over fashion ("cross-symmetrical").

As a result, the observer's position is of no importance. He sees the same thing from all sides. In contrast to conventional, symmetrical systems, which guide the light directly onto the viewing surface in all directions, glare and reflections are almost entirely avoided. This solution is generally used in conference rooms.

The latest generation of asymmetrical systems offers even better characteristics as regards glare and reflections. So, if possible, preference should be given to a color proof light with asymmetrical light design, since the rays of light are then not deflected towards the observer. In this case, viewing is performed from one side. Consequently, all viewing stations from JUST Normlicht are equipped with an asymmetrical light, since viewing is only performed from one side on these devices.

How do you identify the light design of a color proof light?
Products with the letters "AS" are asymmetrical lights (for viewing from one side), while those with the letters "CS" are symmetrical lights (for viewing from several sides).

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