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    Absolute Specular Reflectance Measurement - Specs

    Absolute Specular Reflectance Attachment

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    ASR series

    Configuration of ASR Attachment

    Configuration of ASR Attachment

    This attachment measures the absolute reflectance of the specular reflected light. It is used to measure the absolute specular reflectance of a solid sample, such as a mirror, when mounted on the large-sample compartment or SolidSpec. The sample base plate integrating sphere set must also be mounted at the same time. Since measurement is influenced by polarized light when the angle of incidence is large (30°, 45°), the separate polarizer is required to accurately perform measurement.

    • For UV-2600series/2700series/3600/3600Plus series, SolidSpec Series
    • Approximate size of sample:
      25 to 200 mm dia. or 20 x 20 to 150 x 150 mm, thickness up to 30 mm
    ASR Attachment Name Angle of Incidence Measurement Wavelength Range
    ASR3105 5° 300 to 800 nm (when MPC-2600A is used)
    300 to 2400 nm (when MPC-3100/603A or SolidSpec is used)
    ASR3112 12° 300 to 800 nm (when MPC-2600A is used)
    300 to 2500 nm (when MPC-3100/603A or SolidSpec is used)
    ASR3130 30° 300 to 800 nm (when MPC-2600A is used)
    300 to 2300 nm (when MPC-3100/603A or SolidSpec is used)
    ASR3145 45° 300 to 800 nm (when MPC-2600A is used)
    300 to 2300 nm (when MPC-3100/603A or SolidSpec is used)

    BIS-603/3100/3700/3700DUV Sample Base Plate Integrating Sphere Set

    BIS-3100/3700/3700DUV Sample Ba

    This set comprises a sample base plate and integrating sphere. It is required for mounting the absolute specular reflectance attachment onto the UV instrument.

    • For UV-2600series/2700series/3600/3600Plus series, SolidSpec Series
    Name Applicable Instrument Measurement Wavelength Range
    BIS-603 UV-3600 Plus series 240 to 2600 nm
    BIS-3100 UV-2600series /2700series 240 to 800 nm
    UV-3600 240 to 2600 nm
    BIS-3700 SolidSpec-3700, SolidSpec-3700i 240 to 2600 nm
    BIS-3700DUV SolidSpec-3700DUV SolidSpec-3700i DUV 175 to 2600 nm

    Large Polarizer Set, Polarizer Type I, II, III

    Large Polarizer Set, Polarizer Type I, II, III

    This attachment is used to obtain accurate reflectance measurements at high angles of incidence without the instrument being influenced by polarized light. The polarizer adapter set is required for the polarizer type I, II, III.

    • For UV-2600series/2700series/3600/3600Plus series, SolidSpec Series

    * This polarizer is used in the multi-purpose large-sample compartment and absolute reflectance specular attachment.

    Name Effective Diameter Operable Wavelength Range
    Large Polarizer Set 20 mm 250 to 2300 nm
    Polarizer Type I 18 mm 400 to 800 nm
    Polarizer Type II 17 mm 260 to 700 nm
    Polarizer Type III 10 mm 260 to 2300 nm

    Variable Angle Measurement Unit

    Large Polarizer Set, Polarizer Type I, II, III

    This allows measuring transmittance or absolute reflectance of solid samples at any angle of incidence or any angle of receiving light.

    • Sample size: 20 to 100nm, thickness 15 mm max.
    • Incident angle: 5 to 70 deg. (movable range: 0 to 90 deg.)
    • Angle of receiving light: 10 to 140 deg. (movable range: 0 to 180 deg.)

    For MPC-2600A

    • Photometric accuracy: ±3％
    • Wavelength range: 250 to 1400 nm

    For MPC-603A

    • Photometric accuracy:±1.5%
    • Wavelength range: 250 to 1650 nm

    For Solidspec series

    • Photometric accuracy:±1.5%
    • Wavelength range: 250 to 2500 nm