LM-7M Luminance Meter

LM-7M Luminance Meter, filter near CIE Y curve, which is the best device for measuring the Luminance of the displays. High sensitive silicon photodiode sensor for short distance and high precision luminance measurement. Luminance colorimeter measurement as low as 0.001cd/m2, standard measurement software, instrument continuous and interval measurement via computer control and view data through software.

LM-7M luminance measurement device Overview
LM-7A Luminance MeterLM-7A Luminance Meter, optional desktop controller, robust and precise measurement devices, LCD display designed to show measurement values directly. The instrument can be calibrated and the measurement values are consistent with BM-7A/CS-2000. Conventional used for Luminance measurement on the production line. Optional probes with different measuring diameters. RS232 interface for remote monitoring of computer. Widely used in backlight modules, LCD displays, OLED, various FPD, and optical material measurement.

LM-7M Luminance Meter Characteristic
High Sensitive
High Sensitive Silicon Photodiode Sensor
Low Noise, High Sensitive Board Design
Luminance Measurement
Luminance as low as 0.001cd/m2
High Speed • High Accuracy
Iterative Precision:¯1%(Lv)
Accuracy:¯3%(Lv)
Sampling rate up to 100Kbs

LM-7M Luminance Meter Advantage
Luminance, GAMMA And Flicker
Filter near CIE Y curve
Flicker
Accurate Measurement with High Frequency
Simultaneous measurement FMA and JEITA modes
Software
Standard measurement software, instrument continuous and interval measurement via computer control and view data through software .

LM-7M Luminance Meter Specification
Model LM-7M LM-7A
Detector Silicon photo cell (CIE 1931 Y filter) (Max five probes supported)
Measurement area Ø10mm or Ø27mm
Working Distance 30¯5mm
Acceptance angle 5º
Expose time 1msec~5sec
A/D resolution 16bit
Display range 0.0001 to 20,000cd/m2
Luminance Measurement Range 0.001 to 2000,000cd/m2
Accuracy*¹ 0.1~5cd/m2 ¯3%
≥5cd/m2 ¯2%
Repeatability(σ)*¹ 0.1~5cd/m2 1%
≥5cd/m2 0.5%
Flicker FMA Display range:0~100%; Accuracy:¯1%
JEITA Measurement range:≥10 cd/m2
Frequency range:0~128HZ
Accuracy:¯0.5db
Measurement speed 0.1~5cd/m2 5sec
≥5cd/m2 20/sec
Flicker (JEITA or FMA) 1024/sec
Interface USB2.0
Operating temperature 5 to 50ºC
Input Voltage AC 220V
*1. Measurement of luminance and chromaticity in the RayClouds conditions (using the standard LCD screen (6500K, 9300K)).
*Specifications and appearance are subject to change without prior notice.

LM-7M Luminance Meter Ordering Details
Name Category Number
Probe Ø10mm
Ø27mm LM-P-10
LM-P-27
Data Cable 2m
3m
5m
10m LM-USB-02
LM-USB-03
LM-USB-05
LM-USB-10
Power 5V-3A LM-PW-05
LM Software V1.0 LM-V1.0
Software Manual LM Software LM-SM-V1
Key USB LM-KEY-19
Calibration Certificate Standard Light Source A
LED Light Source
Standard LCD at 6500K LM-CAL-A
LM-CAL-LED
LM-CAL-LCD
Probe Mask（Optional） Black Mask LM-PM-01
Measurement Bracket（Optional）
Probe Bracket (Big)
Probe Bracket (Small) LM-BL-01
LM-BS-02
Instrument Bag（Optional） L*W*H (290*90*90mm） LM-PK-041
*Note: Please order the appropriate product specifications according to your needs.
RayClouds photoelectric Technology Co.,Ltd. (RayClouds) It is a high-tech enterprise specializing in industrial measuring instruments and display measurement system. We provide Chromometer, Spectrophotometer, Imaging colorimeter, Display measurement systems Photometer,Spectral radiance colorimeter and etc. Want to know more? Please contact us.