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The Following Items Are Included:

  • Minolta LS-100 Luminance Meter (BC# 43256-L/T*)
  • Neutral Density Eyepiece Filter
  • User Manual On CD-ROM
  • Carrying Case (G)


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Calibrated

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 Calibrated


Konica Minolta LS-100 Hand-held SLR Precision Luminance Meter

Light sources of all types can be measured with the LS-100, for example signal, traffic lights, airport lighting, lamps, LED's, picture tubes, etc., just about anything that emits light.

Includes Carrying Case & Accessories As Listed Above!

 

 

Working Condition: Excellent
Condition: Refurbished
Calibrated: Yes
Warranty: 1 YEAR WARRANTY

 

 


LS-100 Hand-held and light-weight precision Luminance Meter

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 is 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.
  • 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.

The spot luminance meter LS-100, 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.

 

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

 

LS-100

The unit of illumination L equals candelas per square metre (cd/m2), 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/m2, fluorescent lamps about 10,000 cd/m2. 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/ft2 = 3,426 cd/m2
With its 1° angle of measurement, the LS-100 represents the standard spot luminance meter. Its measurement range starts at 0.001 cd/m2 and is therefore able to meter extremely dark surfaces. With the large 9° field of view and the measured value displayed on an LCD in the viewfinder, the object of measurement can be controlled at all times without taking the LS-100 from your eye. A second LCD display on the exterior of the meter, plus a tripod screw port, allows the user to take measurements without looking through the viewfinder. A neutral density eyepiece filter is included to allow the user to measure strong light sources using the viewfinder.

Besides the measurement of absolute luminance, the LS can also display relative luminance as a percentage of a defined standard (target). With this function, the brightness distribution on large surfaces such as monitors can be rapidly ascertained. The peak luminance value can also be displayed on command, useful when measuring flickering light sources such as fluorescents.

In order to further improve the already negligible deviation from the targets of the CIE relative photopic luminosity curve for certain light sources, the LS-100 offers the option of user-calibration.

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.


Principal Specifications

Model Luminance Meter LS-100
Type SLR spot luminance meter for measuring light-source and surface brightness
Acceptance angle 1°
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 Φ14.4mm
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/m2 or fL (switchable)
Measuring range FAST: 0.001 to 299,900cd/m2 (0.001 to 87,530fL)
SLOW: 0.001 to 49,990cd/m2 (0.001 to 14,590fL)
Accuracy 0.001 to 0.999cd/m2 (or fL): ±2% ±2 digits of displayed value
1.000cd/m2 (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 0.001 to 0.999cd/m2 (or fL): ±0.2% ±2 digits of displayed value
1.000cd/m2 (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-100 product specifications, please click here: Konica Minolta LS-100

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The spot luminance meter LS-100, 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. Please check our Huge Inventory with savings of up to