Konica Minolta LS-150/160 Luminance Meters

  • 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.

    Principal Applications

    • Measurement of the luminance of CRTs, LED’s, and EL’s.
    • Measurement of road and tunnel brightness
    • Measurement of rail-system signals
    • Measurement of road and airport signals
    • Measurement of illumination and outdoor signs
    • Measurement of illumination equipment and devices
    • Research and measurement testing
    • Measurement of device brightness

     

  • 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

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