TS Science

Integrating spheres measure either the diffuse transmittance or reflectance of a liquid, solid or powder samples.

Typically UV-Visible or UV-Visible/NIR spectrophotometers are used to measure the transmittance of a homogeneous, transparent liquid or solid sample.

However, when the light is diffusely scattered by samples such as suspended liquid, opaque solid or powders only a small portion of the light reaches the detector. An integrating sphere captures most of the light from the sample offering a more representative measurement of the sample.

All JASCO Integrating spheres include built in detectors for optimal sensitivity – PMT for UV-visible, InGaAs up to 1600nm and PbS up to 2500nm.

1. ISV-922 | UV-Visible/NIR Integrating Spheres [ 60 mm Dia ]

The 60 mm integrating spheres fit directly into the sample compartment. A 60 mm integrating sphere has a smaller surface area, resulting in an increased signal-to-noise ratio for sample measurements at smaller bandwidth settings.

All 60 mm integrating spheres include a Spectralon reference tile and a specular reflectance exclusion sample holder.

· SSH-506 Solid Sample Holder (for 60 mm integrating spheres) → This sample holder is used to measure the transmittance of solid samples.

· Sample size :

2. ILV-924 | UV-Visible/NIR Integrating Spheres [ 150 mm Dia ]

he 150 mm integrating spheres include a larger sampling area with holders for larger samples and a light trap for including or excluding the specular component. Spectralon reference tiles are included.

The 150 mm diameter is compliant to many international standards that require a larger surface area. Although the 150 mm sphere may have slightly lower signal-to-noise performance, the ratio of larger area vs. the openings for the incident light and sampling ports provides a greater measurement for reflectance experiments.

· SSH-507 Solid Sample Holder (for 150 mm integrating spheres) → This sample holder is used to measure the transmittance of a solid sample.

· Sample size :

· Specifications

3. PIN-757 | Horizontal Integrating Spheres

The PIV and PIN Integrating spheres are used for horizontal sampling and can mount the sample horizontally in a cup below the integrating sphere, ideal for powder samples.

This integrating sphere can also be modified for measurement of smaller sample sizes using a lens above the sphere. Diffuse transmittance measurements are made by placing the sample on the upper surface of the integrating sphere.