Konica Minolta LS-110 Hand-held SLR Precision Luminance Meter LS-100 LS100 LS110

Description

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The Following Items Are Included:
Minolta LS-110 Luminance Meter (BC# 33242-L/T*)
User Manual On CD-ROM
Carrying Case (G)
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Konica Minolta LS-110 Hand-held SLR Precision Luminance Meter
Light sources of all types can be measured with the LS-110, for example signal, traffic lights, airport lighting, lamps, LED's, picture tubes, etc., just about anything that emits light.
The narrow angle of measurement of only 1/3° ensures the LS-110 is perfect for very small luminous surfaces and/or measurements in small steradians.
Working Condition: Excellent
Condition: Refurbished
Warranty: 1 YEAR WARRANTY
LS-110 Hand-held and light-weight precision Luminance Meter
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.
High precision Luminance-Meter with small angle
The spot luminance meter LS-110, categorized in the upper range of the DIN quality class B, is among the best hand meters on the market. The SLR (single lens reflex) optical system allows precise targeting and ensures that the viewfinder shows the exact area to be measured, even at very short distances. This makes even precise focussing very easy. In addition to the measurement field and the measurement environment, the viewfinder also shows the measured luminance value. The pistol grip makes handling of the unit very secure. We have given special attention to minimize flare and to give precise V(λ) correlation (CIE relative photopic luminosity curve). With the help of a close-up lens, areas as small as 0.4mm diameter can be measured.
Areas of application
Light sources of all types can be measured with the LS, for example signal, traffic lights, airport lighting, lamps, LED's, picture tubes, etc., just about anything that emits light. Now you can, for example, guarantee minimum brightness, exchange lamps that are too dark early enough, build quality assurance into the production of lamps, or check indirectly illuminated objects like movie screens.
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
Background knowledge (LS-110)
The unit of illumination L equals candelas per square metre (cd/m
2
), and within this is also the source of this measurement, namely the light strength I emitted per surface area unit A in the angle ε :
L= I/(A cos(ε))
Basically, luminance specifies the brightness of a luminous surface and/or a light source.The sun has an luminance of about 1 billion cd/m
2
, fluorescent lamps about 10,000 cd/m
2
. In some countries the unit foot lambert (ftl) is also used to express illuminance, which the LS can display if required. 1 ftl = (1/π cd/ft
2
= 3,426 cd/m
2
The narrow angle of measurement of only 1/3° ensures the LS-110 is perfect for very small luminous surfaces and/or measurements in small steradians. With the help of the close-up lens VA-110, areas as small as 0.4 mm diameter can be measured. The measurement range is very large at 0.01 to 999,900 cd/m
2
and covers a wide range of uses. All other features and technical specifications correspond to those of the LS-100.
Principal Specifications
Model
Luminance Meter LS-110
Type
SLR spot luminance meter for measuring light-source and surface brightness
Acceptance angle
1/3°
Optical system
85mm f/2.8 lens; SLR viewing system; flare factor less than 1.5%
Angle of view
9°
Focusing distance
1014mm (40 in.) to infinity
Minimum measuring area
Φ4.8mm
Receptor
Silicon photocell
Relative Spectral Response*
Within 8% (f1´) of the CIE spectral luminous efficiency V (λ)
Response time
FAST: Sampling time: 0.1s, time to display: 0.8 to 1.0s; SLOW: Sampling time: 0.4s, time to display: 1.4 to 1.6s
Luminance units
cd/m
2
or fL (switchable)
Measuring range
FAST: 0.01 to 999,900cd/m
2
(0.01 to 291,800fL)
SLOW: 0.01 to 499,900cd/m
2
(0.01 to 145,900fL)
Accuracy
0.01 to 9.99cd/m
2
(or fL): ±2% ±2 digits of displayed value
10.00cd/m
2
(or fL) or greater: ±2% ±1 digit of displayed value
(Illuminant A measured at ambient temperature of 20 to 30°C/68 to 86°F)
Repeatability
0.01 to 9.99cd/m
2
(or fL): ±0.2% ±2 digits of displayed value
10.00cd/m
2
(or fL) or greater: ±0.2% ±1 digit of displayed value
(Measurement subject: Illuminant A)
Temperature/humidity drift
Within ±3% ±1 digit (of value displayed at 20°C/68°F) within operatingtemperature /humidity range
Calibration mode
Minolta standard/user-selected standard (switchable)
Color correction factor
Set by numerical input; range: 0.001 to 9.999
Reference luminance
1; set by measurement or numerical input
Measurement modes
Luminance; luminance ratio; peak luminance or luminance ratio
Display
External: 4-digit LCD with additional indications
Viewfinder: 4-digit LCD with LED backlight
Data communication
RS-232C; baud rate: 4800bps
External control
Measurement process can be started by external device connected to data output terminal
Power source
One 9V battery; power can also be supplied by optional Data Printer DP-10
Power consumption
While measuring button is pressed and viewfinder display is lit: 16mA average
While power is on and viewfinder display is not lit: 6mA average
Operating temperature/humidity range
0 to 40°C, relative humidity 85% or less (at 35°C) with no condensation
Storage temperature /humidity range
-20 to 55°C, relative humidity 85% or less (at 35°C) with no condensation
Dimensions
79×208×150mm (3-1/8×8-3/16×5-7/8 in.)
Weight
850g (30 oz.) without battery
For full Konica Minolta LS-110 product specifications, please click here:
Konica Minolta LS-110
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