- Products description
Luminance Meter LS-150 / LS-160
from Konica-Minolta
The spot luminance meters LS-150 and LS-160, 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.
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.
Leasing from ca. 70,00 Euro net monthly.
Main features:
- SLR (single-lens-reflex) optical system
- Spot measurement for small target areas, with optional lenses down to 0,4 mm
- Measuring values: luminance, luminance difference, luminance relationship, hill- and vale measuring
- Luminance direct readable in view finder and display
- 1000 data memories
- USB 2.0 connector for data exchange and power supply
- User calibration and color-correction functions for wide ranging support
- Light scatter fuse
- Measuring and reporting software CS-S20w included
- Options: 4 Achromatic lenses, mirror reflex finder, long ocular, AC adaptor (see tab "Accessoires")
Specifications:
| Model | Luminance Meter LS-150 | Luminance Meter LS-160 |
| Type | SLR spot luminance meter for measuring light-source and surface brightness | |
| Acceptance angle | 1° | 1/3° |
| Optical system | 85mm f/2.8 lens; SLR viewing system; flare factor less than ≤ 1 % | |
| Angle of view | 9° | |
| Focusing distance | 1014mm (40 in.) to infinity | |
| Minimum measuring area | Φ 14.4mm | Φ 4.8mm |
| 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) (Candela/m² or Foot Lambert) | |
| Measuring range | 0,001 bis 999.900 cd/m | 0,01 bis 9.999.900 cd/m² |
| Accuracy | Lv ±2%+2 digit (under 1cd/m2) Lv ±2%+1 digit (over 1cd/m2) | Lv ±2%+2 digit (under 10cd/m2) Lv ±2%+1 digit (over 10cd/m2) |
| (Illuminant A measured at ambient temperature of 20 to 30°C/68 to 86°F) | ||
| Repeatability | Lv ±0.2%+1digit | Lv ±0.2%+1digit |
| (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 | 10 ch; set by measurement or numerical input | |
| Measurement modes | Luminance; luminance ratio; peak luminance or luminance ratio | |
| Unit class | Class B unit according to DIN 5032-7 | |
| Display | External: Large multi digit LCD with backlight (with dimmer function) and additional indications | |
| Viewfinder: 4 -digit LCD with LED backlight | ||
| Data communication | USB 2.0 | |
| External control | Measurement process can be started by external PC software | |
| Power source | 2 Mignon AA-Batteries, USB, AC power connector (Option) | |
| 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; 2 AA-size batteries, Wrist wrap; Case, USB cable, Data management software CS-S20, (AC adaptor optional, see tab "Accessoires") | |
For the LS-150 and the LS-160 are the following close-up lenses available, please ask us:
Close-up Lens | Minimum Measuring Area CS-150 | Minimum Measuring Area CS-160 | Item Order Code |
No. 153 | Ø 8.0 mm | Ø 2.7 mm | 1804- 740 |
No. 135 | Ø 5.2 mm | Ø 1.8 mm | 1804- 741 |
No. 122 | Ø 5.2 mm | Ø 1.1 mm | 1804- 742 |
No. 110 | Ø 1.3 mm | Ø 0.4 mm | 1804- 743 |
