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DK-Technologies PM 5639/20
Industrial CRT Color Analyzer,
Discontinued

• Displays  any CIE system: xy - u'v' - X,Y,Z, color difference and correlated color temperature
• Color sensor operates directly with standards RS - 232 C serial port
• Extremely stable color sensor with new dichoric filters
• Measurement independent of phosphors
• Unique, easy-to-use graphical display of color coordinates
• Relative RGB bars of any phosphor type to any white reference
• Accepts any field rate - including data monitors and HDTV
• Interfaces to software (Basic, C and Pascal) for automatic adjustment 

The PM 5639/20 industrial CRT color analyzer is used as an adjustment tool for CRT-Based color TV sets in manual, automatic, or semi-automatic production lines. The adjustment may include black level, or the "color of black", contrast level, the "color of white", and the color balance and luminance level at any point in between.

The software program included in the PM 5639/20 package makes it possible to use the measuring results in a wide range of different ways. The software can show the measured results pre-programd white reference and the actual color. The result may also be shown as relative RGB values. The software makes it possible for the user to program his/her own automatic adjustment routines for controlling mechanical screwdrivers, RC5 or I2C interfaces to the set under test, and mechanical elements which transport the set being tested and move the color sensor. This programming can be done in Basic, C, or Pascal. 

The software allows storage of the measurements for later examination in order to facilitate statistics and quality control.

The Industrial CRT color sensor is a rugged and very fast color sensor optimized for use in industrial environments. The color sensor communicates with the controlling PC by means of a standard RS-232 C interface. The filters used in the color sensor to simulate the CIE Standard Observer response are very high-grade dichroic filters. This assumes a stability and accuracy which is very hard to obtain with conventional filter designs.

Modes of Display

The color sensor operates with CIE 1931 standard Observer response filters, thus making it possible to display absolute color coordinates.

• xyY mode:
  x and y coordinates are plotted in the central portion of the CIE 1931 diagram, and the x,y,Y (luminance values) and the color error (CIELUV) are displayed in numerical form  together with the correlated color temperature. The reference point is shown as a box and the actual color is shown as a cross.
  The color error is calculated as the difference between the selected color reference and the actual color according to the CIE 1976 L*u*v* (CIELUV) color space definition.

• d x d yY mode:
  The d x and d y differences are plotted in a coordinate system with origin at the white reference point. The white reference, the x and y values, and the luminance value Y are shown in numerical form. The error is shown as a vector ( d x, d y).

• u'v'Y mode:

• The u' and v' (also called u* and v*) coordinates are plotted in the central portion of the CIE 1976 diagram. The u', v', Y (luminance value), and the color error (CIELUV) are shown in numerical form. The reference point is shown as a box and the actual color is shown as a cross.

• d u' d v'Y mode: 
  The d u' and d v' differences are plotted in a coordinate system with origin at the white reference point. The white reference, the d u' and the d v' values and the luminance value Y are shown in numerical form. The error is shown as a vector ( d u', d v').

• uvY mode: 
  u and v coordinates are plotted in the central portion of the CIE 1960 diagram. The u, v, Y (luminance value) and the color error (CIELUV or JND) are shown numerically. The reference point is shown as a box and the actual color is shown as a cross.

• d u d vY mode: 
  The d u and d v difference are plotted in a coordinate system with origin at the white reference point. The white reference, the d u and the d v values, and the luminance value Y are shown in numerical form. The error is shown as a vector ( d u, d v).

• XYZ mode: 
  The CIE 1931 XYZ values are shown as bar graphs. The values are the direct output from the CIE standard observer response filters normalized to the selected white reference. The display is the same as an RGB display phosphor compensation.

• RGB mode:
  Red, green, and blue value are shown as colored bar graphs. The color balance is relative to a selected white reference and phosphor. The display reference may be either one of the red, green, or blue inputs, or the luminance or a previous measurement. The phosphor compensation removes the "crosstalk" (specified by the CIE standard observer response curves) between the red gun and the blue and green bars (and the same for the other possibilities).

• RGB fixed level mode: 
  This display is the same as the RGB display except that, in addition to the normalization to a white reference and phosphor, the display is also normalized to a pre-selected fixed luminance value.