UPB-150-ART Barium Sulfate Coating

Universal R/T/ULS Integrating Sphere for: Reflectance, Transmittance Measurement, and Uniform Light Source

UPB-150-ART Barium Sulfate Coating

Integrating spheres are commonly used as the base unit in the determination of optical properties of material, specifically reflection, transmission and absorption measurements. The sphere's unique ability is to integrate incoming optical radiation regardless of whether it is directional or scattered. Integrating spheres can also be outfitted with light sources and monitor detectors for use as uniform light sources in UV-Visible-NIR-IR optical radiation calibration applications.

Optimum Six Inch Diameter Integrating Sphere for Flexible Reflection & Transmission Measurements
The UPB-150-ART are 150mm (6”) diameter integrating spheres are commonly used in these applications since this size offers the best com­promise between light throughput and sphere functionality. Its five port layout is designed for multi-purpose single or double beam reflectance, transmittance measurement applications in both +/- 8-degree and 0 degree geometries.

Flexible Five Port Design for Universal Use
Typical measurement set-ups supported by the UPB-150-ART five-port design include:

  • 0°/d Reflection
  • 8°/d Reflection with or without gloss
  • 0°/d Transmission
  • Measurement with test sample self-absorption correction
  • Double-beam measurement setups

The UPB-150-ART integrating sphere is barium sulfate coated (Gigahertz-Optik's ODP97) covering the 300 to 2400nm spectral range.

UPB-150-ART Barium Sulfate Coating
UPB-150-ART multiport integrating sphere
with optional accessories.

30mm Diameter Port Size with Knife-Edge
Each of the five 30mm diameter ports includes a real symmetrical knife-edge design to produce the maximum size acceptance angle to allow the most light into the sphere without contacting the sphere port. The UPB-150-ART port wall thickness is only 0.5mm. The +/-8° measurement ports are not aligned in the center of the sphere and have a circumferential knife edge of only 0.5mm as well.

Universal ‘Slide & Fix' Port Mounts for Port Accessory Components
Gigahertz-Optik's unique two-post Slide & Fix mount system offers tool less mounting of supplied accessory components to the ports including:

  • Port Plugs that fit into the port to form a uniform sphere surface when port is covered
  • Port Re­ducers to reduce the 30mm diameter port aperture
  • Sample Holders to mount different size and thickness test samples and calibration standards
  • Light Traps to absorb light exiting the sphere

Universal Detector Port with Adjustable Integrated Baffle
Different types of detector holders are available for the detector port which is located at the top of the integrating sphere. The integrated detector holder baffle can be orientated to the different application ports by rotating the detector holder. The sphere is barium sulfate coated covering the spectral range from 300 to 2400nm. Optional Gigahertz-Optik light detectors, light meters, light analyzers and calibration standards are available.

Integrating Sphere Light Source Adaptability
The UPB-150-ART are modularly configurable for use as uniform light sources. Traditional tungsten and LED type light source assemblies, UV-Vis-NIR-IR detectors and different types of attenuation devices can be mounted onto the integrating spheres to form a lab standard calibration source useful for:

  • Pixel uniformity and pixel linearity calibration of imaging systems and cameras with a wide dynamic luminance range
  • MTF calibration of imaging sensor resolution where a slit target at a specified distance is uniformly illuminated by the integrating sphere source
  • Luminance or spectral radiance sensitivity calibration of imaging devices or luminance meters

Product Specifications
For product specifications and configurable options for the UPB-150-ART Universal Integrating Sphere, please visit the Gigahertz-Optik main website here.

Here's The Problem:
As an applied optics professor at university you would like to set-up an optical properties of materials experiment in your lab course to demonstrate single and double beam reflectance and transmittance measurement of various samples with different thicknesses at both +/- 8-degree and 0 degree geometries. Space and budget are limited so a compact device with maximum flexibility would be ideal.

Here's The Requirements:

  • Integrating sphere base unit designed for reflectance transmittance measurements
  • Multiple port layout for flexibility in experiment set-up
  • Quick and easy means of mounting optional sphere components onto the ports
  • Full complement of reflection and transmission based sphere components like adjustable sample holders, port reducers, detectors, light traps and light sources
  • Small footprint for post-mounted or bench-top usage
  • Capability for use as an integrating sphere source for calibration purposes

Here's The Solution:
Gigahertz-Optik's UPB-150-ART Universal R/T/ULS Integrating sphere with fifteen different reflection, transmission and self-absorption correction set-ups and full line of UPB-150-ART-ZXX accessory components.

The arrangement of the UPB-150-ART's five measurement ports enables its universal use.
‘Slide&Fix' Accessory Component Mount System

UPB-150-ART multiport integrating sphere with Slide & Fix System for fastening the accessories.
UPB-150-ART Precise Port Layout for Universal Use

The front side of the port plugs and port reducers conforms to that of sphere surface.
Port Plug & Reducer Align with Sphere Port Surface at Same Level

Light trap for the absorption of the directed portion of the reflection in an 8°/d measurement setup and that of the transmission in 0°/d transmission measurements of transparent samples respectively.
Light Trap for Reflection, Absorption and Transmission Applications

Typical spectral reflectance of the ODP97 barium sulfate sphere coating.
Typical ODP97 Barium Sulfate Coating Spectral Reflectance

At Gigahertz-Optik, we have effective light measurement solutions for your radiometric / photometric applications.