Minolta LS-100 Luminance Meter

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SKU: MINO-LS-100

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The handheld LS-100 spot luminance meter offer excellence and categorization in the upper levels of the DIN quality class B which places them among the best in the market. This meter is powered by a 9-volt battery making this compact, lightweight luminance meter ideal for any location.

The LS series features a single reflex lens (SLR) optical system allowing for precise targeting while ensuring that the viewfinder displays the area to be measured regardless of distance. This series is capable of measuring a vast range of sizes beginning at diameters of 0.4mm. The LS series is very user friendly for everyone from novices to the experienced.

A brilliant LCD screen and viewfinder displays the measured luminance value enabling the user to manage the measured object without moving the device form the eye. For measurements from strong light sources, a neutral density filtered eyepiece is included. There is also a pistol grip for a stable hold.

The LS-100 starts at a range of 0.001cd/m2 enabling the device to measure exceptionally dark surfaces. User calibration and color corrections functions are included in this device allowing a user to choose standard luminance as well as the function that corrects differences from specific light sources along with the ability to set measurement values: luminance ratio, instantaneous luminance, and peak luminance. The LS-100 can be connected to a personal computer for the exchange of data and control signals.

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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
Response Time	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)
Measuring Range	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
Accuracy	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
Repeatability	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 operating temperature /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
Display	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	While measuring button is pressed and viewfinder display is lit: 16mA average
Power Source	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
Standard Accessories	Lens cap; Eyepiece cap; ND eyepiece filter; 9V battery; Case

Minolta LS-100 Luminance Meter

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