LS-100 Luminance Meter
The LS-100 handheld spot luminance meters are categorized in the upper range of the DIN quality class B, making them among the best hand meters on the market. They are lightweight, compact, and powered by a single 9V battery for easy portability.
The series features an SLR (single lens reflex) optical system which allows precise targeting, ensures that the viewfinder shows the exact area to be measured even at very short distances, and enables areas as small as 0.4mm diameter to be measured. This makes the instrument extremely easy to use, even for first time users.
The measured luminance value is shown on the LCD screen, as well as the viewfinder, which enables the user to control the measured object without moving the instrument away from the eye. A neutral density eyepiece filter is included to allow measurements of strong light sources. The pistol grip enables the user to more stably hold the unit.
The LS-100 has the ability to measure even extremely dark surfaces since its range starts at 0.001cd/m2. This instrument includes user calibration and color-correction functions, which allow the user to select a standard luminance and the function corrects the differences for the specified light sources. Measurement values can also be set to instantaneous luminance, peak luminance, and luminance ratio. This instrument can connect to a PC to send measurement data and receive control signals.
- Portable – lightweight, compact, and battery powered
- One of the best on the market – categorized in the upper range of the DIN quality class B
- SLR (single lens reflex) – allows precise targeting, ensures viewfinder shows the exact area to measure
- Small diameter measurements – can measure as small as 0.4mm
- LCD and viewfinder displays – measurement results are shown in both places, viewfinder display makes it easy to focus on target
- Neutral density eyepiece filter – allows measurements of strong light sources
- Grip – pistol grip design enables the user to stably hold the instrument
- Measure dark surfaces – range starts at 0.001cd/m2
- User calibration and color correction – corrects the differences for a specified light source
- Three settings – instantaneous luminance, peak luminance, and luminance ratio
- PC connections – send measurement data and receive control signals
- 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
- 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
- Standard accessories
- Lens cap; Eyepiece cap; ND eyepiece filter; 9V battery; Case
Specifications are subject to change without notice.
∗ Equivalent to 2% specified for T-1 series.
8% CIE(f1’),new JIS(1993)
2% old JIS
No accessories for this product.
