Light Measurement

V-7WD

V-7WD ATAKT™

Overview

It is well known that spectrally based measurements offer the highest degree of accuracy available for determining intensity (luminance) and color (chromaticity) of FPD's regardless of the technology – CCFL, LED Backlit LCD or OLED etc. One major drawback to existing spectral solutions is unacceptably long measurement times. The Photo Research series of A-TAKT™ spectroradiometers has eliminated this by making it possible to perform in-line production testing with spectral accuracy at or near real-time speeds.

The V-7WD provides high-speed solutions for those applications, such as LCD BLU's, where higher intensity devices need testing.

Features

The V-7WD is optimized for the testing of high intensity sources such as FPD BLU’s with extreme accuracy and repeatability.

  • Spectroradiometric accuracy and repeatability at near real-time colorimeter speeds.
  • Thermally cooled detector for stability in production environments.
  • High speed, high spectral resolution measurements of ultra-bright BLU’s , LEDS, etc.
  • DUT measurement target area customizable for your specific application.

Manufactured by Photo Research

Specifications

Specifications

V-6AQL

DETECTORS

512

COOLED DETECTOR

YES

STANDARD APERTURE

2°

OBJECTIVE LENSES

Fixed Focus 50mm
Variable Focus 75mm
Custom (contact factory)

STANDARD BANDWIDTH

8 nm

LUMINANCE RANGE IN cd/m²
FOR WHITE LED

0.002 TO 60,000

TOTAL CYCLE TIME
FOR WHITE LED

60 ms @ 10,000 cd/m²

TOTAL CYCLE TIME
FOR ILLUMINANT A

75 ms @ 10,000 cd/m²

LUMINANCE ACCURACY
FOR ILLUMINANT A

± 2% @ 0.01 cd/m²

LUMINANCE RANGE IN cd/m²
FOR ILLUMINANT A

.001 TO 30,000

SIZE IN INCHES (MM) –
L X W X H

10.79 X 6.69 X 7.40
(270 X 170 X 188)

WEIGHT IN LBS. (KG)

9.55
(4.33)

A-TAKT V-7HS SENSITIVITY CHART 1, 2

APERTURE

LENS

SPECTRAL BANDWIDTH

1.5°

1.25°

1°

FF-50 or MS-75

2 NM (FWHM)

0.00014 - 41667

0.002 - 60,000

0.0045 - 135,000

FF-50 or MS-75

5 NM (FWHM)

0.00056 - 16667

0.0008 - 24000

 0.0018 - 54,000

FF-50 or MS-75

8 NM (FWHM)

0.00035 - 10,417

0.00050 - 15000

0.0011 - 33,750

1 ALL VALUES ARE IN CD/M2. 2 MEASURING A WHITE LED.