Integrating Sphere, Spectralon® Coating

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Manufacturer's part number :


Manufacturer Ocean Optics

Ocean Optics

Description :

The ISP-REF Integrating Sphere is designed for applications requiring even surface illumination for reflectance measurements - such as in determining the color of flat surfaces. The ISP-REF is 1.5 inch diameter and features a transfer optic assembly for restricting the fiber viewing angle, a 0.4 inch aperture sample port and a built-in tungsten-halogen light source with 12 VDC adapter. The sphere is coated with Spectralon®, a white diffusing material that provides a highly Lambertian reflecting surface. A simple switch allows users to manipulate the sampling optic for the inclusion (I) or exclusion (E) of specular reflectance.

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  • Quote and availability


    • Spectral range (of illumination source): 360-1000 nm
    • Dimensions: 54 mm x 57 mm x 83 mm (LWH)
    • Sphere diameter: 1.5"
    • Weight: 864.7 g
    • Sample port aperture: 10.32 mm
    • Sphere coating: Spectralon (doped with Barium Sulfate)
    • Reflectivity: >98% (400-1500 nm) / >95% (250-2000 nm)
    • Reflectance measurements: Specular included or excluded
    • Bulb life: 900 hours
    • Bulb color temperature: 3100 K

Features Similar products
Measurement Type Transmission/Reflection  

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Input Port Diameter (mm) 10 to 20  
Sphere Diameter (mm) 38  
Number of Port 1