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IN EXCELLENT ++CONDITION!! INCLUDED IS THE LS-110 METER, LONG EYE RELIEF EYEPIECE;110 CLOSE UP LENS; STRAP, FITTED CARRYING CASE THIS METER HAS OLD CALIBRATION CERTIFICATE INCLUDED MAY BE NECESSARY TO BE RECALIBRATED PRIOR TO USE.INCLUDED IS A COPY OF THE MINOLTA INSTRUCTION MANUAL THE MINOLTA LS-110 LUMINANCE METER WITH THESE ACCESSORIES IS OVER $3,700 PLEASE EMAIL ANY AND ALL QUESTIONS THANK YOU
FROM THE KONICA-MINOLTA WEBSITE:
Luminance Meter LS-110
A lightweight, compact, highly-portable luminance meter for measurements of a wide range of luminance conditions.
Hand-held and light-weight precision Luminance Meter
High precision Luminance-Meter with small angle
The spot luminance meters LS-100 and LS-110, categorized in the upper
range of the DIN quality class B, are 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.
Background knowledge (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-110 offers the option of user-calibration.
Relative spectral response
For the measurement of luminance, ideally the relative spectral response
of the meter should perfectly match the sensitivity of the human eye
for photopic vision, as represented by the CIE spectral luminous
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
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 and
LS-110 are 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 and a 0.4-mm measurement
diameter for the LS-110.
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.
Two-way RS-232C communication
Featuring an RS-232C interface as standard, this luminance meter can
connect with a PC to send measurement data and receive control signals.
Lightweight, compact, and powered by a single 9V battery
(Power can also be supplied by the DP-10 Data Printer.)
Luminance Meter LS-100
Luminance Meter LS-110
SLR spot luminance meter for measuring light-source and surface brightness
85mm f/2.8 lens; SLR viewing system; flare factor less than 1.5%
Angle of view
1014mm (40 in.) to infinity
Minimum measuring area
Relative Spectral Response*
Within 8% (f1´) of the CIE spectral luminous efficiency V (λ)
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
cd/m2 or fL (switchable)
FAST: 0.001 to 299,900cd/m2 (0.001 to 87,530fL)
SLOW: 0.001 to 49,990cd/m2 (0.001 to 14,590fL)
FAST: 0.01 to 999,900cd/m2 (0.01 to 291,800fL)
SLOW: 0.01 to 499,900cd/m2 (0.01 to 145,900fL)
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
0.01 to 9.99cd/m2 (or fL): ±2% ±2 digits of displayed value
10.00cd/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)
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
0.01 to 9.99cd/m2 (or fL): ±0.2% ±2 digits of displayed value
10.00cd/m2 (or fL) or greater: ±0.2% ±1 digit of displayed value
(Measurement subject: Illuminant A)
Within ±3% ±1 digit (of value displayed at 20°C/68°F) within operatingtemperature /humidity range
Minolta standard/user-selected standard (switchable)
Color correction factor
Set by numerical input; range: 0.001 to 9.999
1; set by measurement or numerical input
Luminance; luminance ratio; peak luminance or luminance ratio
External: 4-digit LCD with additional indications
Viewfinder: 4-digit LCD with LED backlight
RS-232C; baud rate: 4800bps
Measurement process can be started by external device connected to data output terminal
One 9V battery; power can also be supplied by optional Data Printer DP-10
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
79×208×150mm (3-1/8×8-3/16×5-7/8 in.)
850g (30 oz.) without battery
Lens cap; Eyepiece cap; ND eyepiece filter; 9V battery; Case
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