Luminance Meters

LS-100

Product Overview

• Relative spectral response
  For the measurement of luminance, ideally the relative spectral response of the meter should perfectly match the sensitivity of the human eye for photopic vision, as represented by the CIE spectral luminous efficiency V(λ).

Principal Applications

• Measurement of the luminance of CRTs, LED, and ELs.
• Measurement of road and tunnel brightness
• Measurement of rail-system signals
• Measurement of road and airport signals
• Measurement of illumination and outdoor signs
• Measurement of illumination equipment and devices
• Research and measurement testing
• Measurement of device brightness

Main Features

• SLR (single-lens-reflex) optical system
  The LS-100's single-lens-reflex design ensures that there will be no deviation between the actual measurement area and the area indicated in the viewfinder. Eliminating the effect of illumination outside the measurement range, this flareless optical system ensures accurate measurement of only the target area.
• Spot measurement for small target areas
  With acceptance angles of 1° and 1/3° respectively, the LS-100 and LS-110 are ideal for measuring the luminance of small specimens. Furthermore, a close-up lens (sold separately) can be used to achieve a 1.3-mm measurement diameter for the LS-100 and a 0.4-mm measurement diameter for the LS-110.
• User calibration and color-correction functions for wide ranging support
  With a user calibration function allowing recalibration to any standard luminance that you select and a color-correction input function for correction of indication differences for specific light sources, multiple luminance meters can be used without error for extremely detailed luminance control.
• Luminance ratio and peak value measurement
  Based on the particular application, measurement values can be set to instantaneous luminance, peak luminance, and luminance ratio.
• Two-way RS-232C communication
  Featuring an RS-232C interface as standard, this luminance meter can connect with a PC to send measurement data and receive control signals.
• Lightweight, compact, and powered by a single 9V battery
  (Power can also be supplied by the DP-10 Data Printer.)

LS-110

Features

Highly-portable, handheld design capable of measurements in a wide range of luminance conditions. Flareless SLR (single-lens-reflex) optical system for high-accuracy measurements. Acceptance angle of 1/3° supports measurement of small target areas.

Applications

Measurement of the luminance of CRTs, LED, and ELs.
Measurement of road and tunnel brightness
Measurement of railway system signals
Measurement of road and airport signals
Measurement of illumination and outdoor signs