ISP-R Integrating Spheres for Reflectance

The ISP-R Integrating Spheres are distinguished by their compact size and sturdy design. All ISP-R spheres have two SMA 905 ports. The excitation input is angled at 8° and collimates the fiber input before introduction into the sphere. The output port is angled at 90° (to connect to a spectrometer). A gloss-trap version comes with two cylindrical inserts coated with either a black absorbing material (for excluding the specular component of the reflection) or with the same material as the sphere (to include the specular component). This insert fits into a hole angled at -8° at the top of the sphere.

Features

• Fiber Optic Spheres. Measure total integrated reflectance of surfaces

• Multiple Options. Choose from spheres varying in sample port diameter (6-10 mm) and sphere diameter

The sphere is made of a sintered PTFE, which is >98% reflective in the visible. The spheres are available in diameters of 30 mm, 50 mm and 80 mm. Sample port diameters are 6 mm for the 30-mm sphere and 8 mm for the 50-mm and 80-mm spheres. (Call for custom port diameters.)

Each of the fiber optic integrating spheres described here couples to our spectrometers to measure the total integrated reflectance of surfaces placed against the sphere’s sample port. These integrating spheres are well-suited for measurement of variegated samples, as well as for analysis of opaque or highly directional samples. Gloss-trap options are available that allow you to measure specular component of the total integrated reflection.

Maximum Illumination Fiber Diameters

The maximum illumination fiber diameter that should be used with each integrating sphere.

Pricing

Specifications

Dimensions:	ISP-30-6-R: 59 mm diameter, 58 mm height ISP-50-8-R: 80 mm diameter, 78 mm height ISP-80-8-R: 107 mm diameter, 117 mm height ISP-50-8-R-GT: 80 mm diameter, 78 mm height
Weight:	330 g (ISP-30); 730 g (ISP-50); 1,650 g (ISP-80); 743.3 g (ISP-50-GT)
Spectral range:	200-2500 nm
Sphere diameter:	30 mm, 50 mm or 80 mm
Sample port diameter:	6 mm (ISP-30); 8 mm (ISP-50 and ISP-80)
Sphere coating:	Proprietary PTFE-based diffusing material
Reflectivity:	>98% (400-1500 nm); >95% (250-2000 nm)

 

 

 

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ISP-REF Illuminated Integrating Sphere

Spheres for Irradiance and Emission

Spectro-
radiometric Systems