LS-150/160 Luminance Meter

Mã SP: LS-150/160

A next generation handheld digital luminance meter for measurement of light sources and reflected light. Building on the key design features of their predecessors with new features, improved accuracy and increased measurement range

 
 
 
 
 
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Portable Precision Luminance Meter
The LS-150 and LS-160 are lightweight, compact and battery powered luminance meters for the measurement of a wide range of luminance conditions. A worthy successor to the LS-100 and LS-110, the new instruments offer improved features and usability. These next generation instruments provide an increased measurement range and improved V(λ) correlation (CIE relative photopic luminosity curve). 

To provide the most accurate measurement of luminance, the relative spectral response of the measuring instrument should perfectly match the sensitivity of the human eye for photopic vision, as represented by the CIE spectral luminous efficiency V(λ). Alongside improved usability, the LS-150/160 feature an improved correlation to V(λ) and a greatly improved measurement range upto 999,900 cd/m2 (LS-150) and 9,999,000 cd/m2 (LS-160).


The LS-150 and 160 feature the same user friendly features as the popular
LS-100 and LS-110:

  • SLR (single lens reflex) optical system and pistol grip design gives the operator precise control over targeting and ensures that the viewfinder shows the exact area to be measured, even at very short distances.
  • The measured luminance value is displayed both inside the viewfinder and on the large external monochrome display.
  • The optical system is virtually flare-free, eliminating the influence of light from outside the measurement area.
  • Areas as small as 0.4mm diameter (LS-160) can be measured when using the optional close-up lenses (for information on measurement areas please check the table within the instrument specifications).
  • The result is a truly next generation measuring instrument, both accurate and user friendly. The LS-150 also satisfies the criteria for DIN 5032-7 Class B.

Specifications

Principal Specifications LS-150/LS-160

Model

Luminance Meter LS-150

Luminance Meter LS-160

Type

SLR spot luminance meter for measuring light-source and surface brightness

Acceptance angle

1/3°

Optical system

85mm f/2.8 lens; SLR viewing system

Angle of view

Relative Spectral Response

Closely matches the CIE spectral luminous efficiency V (λ)

Standard

Din 5032 Part 7 Class-B

 

Receptor

Silicon photocell

Minimum measuring area

Ø 14.4 mm (1.3mm)

Ø 4.5 mm (0.4mm)

Minimum measuring distance

1012mm (213mm)

Measurement modes

Luminance; difference luminance; peak/valley luminance or luminance ratio

Response time

Auto: 0.7 to 4.3s.

Manual: 0.7 to 7.1s.

Luminance units

cd/m2 or fL (switchable in menu)

Measuring range

0.001 - 999,900 cd/m2

0.01 - 9,999,000 cd/m2

Accuracy

Lv ±2%+2digit (below 1cd/m2)

Lv ±2%+1digit (above 1cd/m2)

Lv ±2%+2digit (below 10cd/m2)

Lv ±2%+1digit (above 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

0 to 40℃, RH85% or less (at 35℃)with no condensation

 

Flare characteristic

1% or less

Polarization error

1% or less

Temperature dependence

0.2%/K or less

Calibration mode

Konica Minolta standard/user-selected standard (switchable)

Colour correction factor

Set by numerical input; range: 0.001 to 9.999

Reference luminance

10 ch; set by measurement or numerical input

Data memory

1000 Data

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

Sync measurement

20 Hz to 400 Hz

Power source

Two AA size (1.5V) batteries, AC adapter (optional accessories) USB power bus

Operating temperature / humidity range

0 to 40°C, RH 85% or less (at 35°C) with no condensation

Storage temperature / humidity range

0 to 450C, RH85% or less (at 350C) with no condensation

Dimensions

71×214×154mm

Weight

850 g without battery

Standard accessories

Lens cap; Eyepiece cap; 2 AA-size batteries, Wrist wrap; Case, USB cable, Data management software CS-S20

Specifications are subject to change without notice.

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