Konica Minolta LS-150/160 Luminance Meters
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Portable Precision Luminance Meter
The LS-150 and LS-160 are lightweight, compact and battery powered luminance meters for the measurement of a wide range of luminance conditions. A worthy successor to the LS-100 and LS-110, the new instruments offer improved features and usability. These next generation instruments provide an increased measurement range and improved V(λ) correlation (CIE relative photopic luminosity curve).To provide the most accurate measurement of luminance, the relative spectral response of the measuring instrument should perfectly match the sensitivity of the human eye for photopic vision, as represented by the CIE spectral luminous efficiency V(λ). Alongside improved usability, the LS-150/160 feature an improved correlation to V(λ) and a greatly improved measurement range upto 999,900 cd/m2 (LS-150) and 9,999,000 cd/m2 (LS-160).
The LS-150 and 160 feature the same user friendly features as the popular
LS-100 and LS-110:- SLR (single lens reflex) optical system and pistol grip design gives the operator precise control over targeting and ensures that the viewfinder shows the exact area to be measured, even at very short distances.
- The measured luminance value is displayed both inside the viewfinder and on the large external monochrome display.
- The optical system is virtually flare-free, eliminating the influence of light from outside the measurement area.
- Areas as small as 0.4mm diameter (LS-160) can be measured when using the optional close-up lenses (for information on measurement areas please check the table within the instrument specifications).
- The result is a truly next generation measuring instrument, both accurate and user friendly. The LS-150 also satisfies the criteria for DIN 5032-7 Class B.
Principal Applications
- Measurement of the luminance of CRTs, LED’s, and EL’s.
- 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
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Model
Luminance Meter LS-150
Luminance Meter LS-160
Type
SLR spot luminance meter for measuring light-source and surface brightness
Acceptance angle
1°
1/3°
Optical system
85mm f/2.8 lens; SLR viewing system
Angle of view
9°
Relative Spectral Response
Closely matches the CIE spectral luminous efficiency V (λ)
Standard
Din 5032 Part 7 Class-B
Receptor
Silicon photocell
Minimum measuring area
Ø 14.4 mm (1.3mm)
Ø 4.5 mm (0.4mm)
Minimum measuring distance
1012mm (213mm)
Measurement modes
Luminance; difference luminance; peak/valley luminance or luminance ratio
Response time
Auto: 0.7 to 4.3s.
Manual: 0.7 to 7.1s.
Luminance units
cd/m2 or fL (switchable in menu)
Measuring range
0.001 – 999,900 cd/m2
0.01 – 9,999,000 cd/m2
Accuracy
Lv ±2%+2digit (below 1cd/m2)
Lv ±2%+1digit (above 1cd/m2)
Lv ±2%+2digit (below 10cd/m2)
Lv ±2%+1digit (above 10cd/m2)
(Illuminant A measured at ambient temperature of 20 to 30°C/68 to 86°F)
Repeatability
Lv ±0.2%+1digit
Lv ±0.2%+1digit
(Measurement subject: Illuminant A)
Temperature / humidity drift
0 to 40℃, RH85% or less (at 35℃)with no condensation
Flare characteristic
1% or less
Polarization error
1% or less
Temperature dependence
0.2%/K or less
Calibration mode
Konica Minolta standard/user-selected standard (switchable)
Colour correction factor
Set by numerical input; range: 0.001 to 9.999
Reference luminance
10 ch; set by measurement or numerical input
Data memory
1000 Data
Display
External: Large multi digit LCD with backlight (with dimmer function) and additional indications
Viewfinder: 4 -digit LCD with LED backlight
Data communication
USB 2.0
Sync measurement
20 Hz to 400 Hz
Power source
Two AA size (1.5V) batteries, AC adapter (optional accessories) USB power bus
Operating temperature / humidity range
0 to 40°C, RH 85% or less (at 35°C) with no condensation
Storage temperature / humidity range
0 to 450C, RH85% or less (at 350C) with no condensation
Dimensions
71×214×154mm
Weight
850 g without battery
Standard accessories
Lens cap; Eyepiece cap; 2 AA-size batteries, Wrist wrap; Case, USB cable, Data management software CS-S20
