MS740 / MS745

Overview

These two systems are designed for those applications requiring ultra-high speed at low light conditions and is ideal for the testing of low to medium intensity LED’s for lumens (in an integrating sphere). The MS740 is a visible wavelength solution while the MS745 extends the measureable spectral range to 1080 nm making it ready to test NIR LED’s or other devices that go just past the visible spectrum.


Manufactured by Photo Research

Specifications

Spectra® MS740

Spectra® MS745

Wavelength Range (nm)

380-780

380-1080

Detector
elements

512

512

Bandwidth
(nm)

2

4

Optical
Interface

Fiber optics
SMA cable

Fiber optics
SMA cable

Wavelength
Accuracy (nm)

< 0.4

< 0.8 

Exposure Time
Range

6.4 ms–2 mins.

6.4 ms–2 mins.

Luminance
Range (in cd/m2
for Illuminant A)

0.000025–60,000

0.000013–30,000

Photometric Accuracy (for Illuminant A)

± 2% @ 0.005
cd/m2

± 2% @ 0.00025
cd/m2

Colorimetric
Accuracy
1

0.0015 1931
CIE x,y @
0.005 cd/m2

0.0015 1931
CIE x,y @
0.00025 cd/m2

Applications

APPLICATIONS CHART

Application

Spectra® MS6

Spectra® MS730

Spectra® MS735

Spectra® MS740

Spectra® MS745

High Intensity

*

*

*

Low Intensity

*

*

*

*

Low Intensity @ High Speed

*

*

Near IR (NIR)

*

*