LS-150 Luminance Meter
Click to Enlarge Thumbnails
Click Here to Watch Video
The LS-150 Luminance Meter (successor to the LS-100) is a highly accurate luminance meter that uses a newly designed sensor with a spectral response that more closely matches the V(λ) spectral luminous efficiency function of the human eye to provide measurement results that correlate well with visual evaluation. The LS-150 is compact, ergonomic, and extremely portable running off AA batteries.
The LS-150 series uses a single lens reflex (SLR) optics system that provides users with several important capabilities. The SLR allows highly accurate targeting of light sources. Very small areas, even down to 1.3mm (when close-lens is used), can be measured accurately. Measurement areas at distances both long and short show up consistently in the viewfinder. This flexibility allows even those who have never used the instrument to gather precise measurement results.
The value of the measured luminance is easy to read on the clear backlit LCD screen and also on the bright viewfinder. With this capability, the instrument allows the user to never have to move the instrument from the eye while still perfectly controlling the measured object. The automatic mode sets the measurement time according to the brightness of the target. When measuring light sources that are particularly bright a neutral density eyepiece filter makes the job safe and comfortable. In all measuring tasks, our uniquely designed pistol-type grip provides for a secure hold on the instrument.
When measuring low luminance, the LS-150 comes through with a range that begins at 0.001cd/m². Color-correction and calibration functions built into the instrument give users the ability to choose a standard luminance and have differences corrected according to any light sources that are specified. The LS-150 included utility software allows the instrument to be controlled from a PC via USB 2.0. Repeated interval measurements can be conducted a specific number of times at specific intervals, measurement data can be displayed on graphs or lists, and data can be exported to spreadsheet applications. Optional close-up lenses allows for measurement of extremely small areas. Also, the optional illuminance adapter enables illuminance measurement as well.
Click here for the LS-150 Brochure.
Existing Customer?
If you're looking for service support or help with calibration then complete a service request form and we'll get right back to you
Features
- Eligible ISO 17025 Certification
- 1° acceptance angle
- Portable, lightweight, compact and battery powered
- Upper range of the DIN quality class B
- SLR (Single Lens Reflex), precise targeting; shows exact area to measure
- Backlit LCD and viewfinder displays; easy to focus on target
- Neutral density eyepiece filter allowing measurements of bright light sources
- Pistol grip enables user to stabilize the instrument with ease
- Measures low luminance, range starts at 0.001cd/m2
- User calibration and color correction
- Includes Utility Software allows the instrument to be controlled from the PC via USB 2.0
- Optional CCD camera adapter enables viewfinder to be monitored from a distance
Specifications
| Model | LS-150 Luminance Meter |
|---|---|
| Measuring angle | 1° |
| Optical system | SLR viewing system, f = 85 mm F2.8 |
| Angle of view | 9° (with diopter adjustment) |
| Relative spectral responsivity | Closely matches spectral luminous efficiency (V (Λ)) |
| Application standard | DIN 5032-7 Class B compliant |
| Minimum measuring area (diameter) | 14.4 mm (1.3 mm when close-up lens is used) |
| Minimum measuring distance (From the measuring distance reference plane) | 1,012 mm (213 mm when close-up lens is used) |
| Measurement mode | Instantaneous value, maximum/minimum value, luminance difference (Δ)/luminance ratio (%) |
| Measurement time | AUTO: 0.7 to 4.3 seconds Manual: 0.7 to 7.1 seconds |
| Luminance unit | cd/m2 or fL |
| Luminance range | 0.001 to 999,900 cd/m2 |
| Accuracy*1 | +/-2% +/- 2 digits (1 cd/m2 or less) +/-2% +/- 1 digit (1 cd/m2 or more) |
| Repeatability*1 | 0.2% + 1 digit |
| Calibration standard | Konica Minolta standard/user-specified standard switchable |
| User calibration channels | 10 channels |
| Data memory | 1,000 data |
| External display (Number of significant digits) |
(Luminance) 4 digits (Chromaticity) 4 digits |
| Internal display (Number of significant digits) |
(Luminance) 4 digits |
| Interface | USB 2.0 |
| Power | AA-size batteries (x2), USB bus power, or optional AC adapter |
| Current consumption | When viewfinder display is lit: 70 mA average |
| Operation temperature/humidity range | 0 to 40°C, relative humidity of 85% or less (at 35°C) |
| Storage temperature/humidity range | 0 to 45°C, relative humidity of 85% or less (at 35°C) |
| Size | 71x214x154 mm |
| Weight | 850 g (without batteries) |
| Standard accessories | Lens Cap Eyepiece ND Filter Eyepiece Cap AA-size batteries (x2) Hard Case CS-A12 Wrist Strap CS-A13 USB Cable T-A15 Data Management Software CS-S20 |
| Optimal accessories | Close-Up Lens No. 153/135/122/110 CCD Camera Adapter CS-A14 Illuminance Adapter CS-A15 AC Adapter AC-A305J/L/M |
| Specifications are subject to change without notice. | |
| *1 Standard Illuminant A; Standard measurement distance; Measurement time setting: Auto | |
