819D Series Spectraflect Coated Diverging Beam Integrating Spheres
819D Series Spectraflect Coated Diverging Beam Integrating Spheres
Our Spectraflect (Barium Sulfate) coated integrating sphere bodies are desigend for diverging input beams. The Spectraflect coating has an effective spectral range from 300 to 2400 nm, with reflectivity greater than 97% at 600 nm. It is a cost effective and adequate for most radiation measurement applications.
- 3-Port Integrating sphere designed for diverging input beam
- Cost effective Spectraflect (Barium Sulfate) sphere coating material
- Sphere provides for total collection of light and spatial integration
- Signal attenuation through multiple bounces in high reflectance coating
- Power measurements are insensitive to exact detector positioning See All Features
| Compare | Description | Drawings, CAD & Specs | Avail. | Price | ||
|---|---|---|---|---|---|---|
 | 819D-SF-4Integrating Sphere, 3-Port, 4 in. Diameter, Barium Sulfate, Port Frame Reducer Included | In Stock | ||||
 | 819D-SF-6Integrating Sphere, 3-Port, 6 in. Diameter, Barium Sulfate, Port Frame Reducer Included | 5 Weeks FREE 2-day shipping on thousands of products on Newport.com Learn More |
Features
Three Port Integrating Sphere for Diverging Beams
819D Series modular integrating sphere bodies feature three ports located at 0 and 90 degrees, as well as at the north pole. The baffle is located between the 0- and the 90-degree ports. Compared with Four Port 819C Series spheres, the 819D Series provides a better integration of the light input. We offer a wide variety of integrating sphere accessories that mount to the port frames, allowing the sphere to be customized for multiple applications.
Integrating Sphere Accessories
Newport offers accessories that are compatible with our integrating spheres to build a complete integrating sphere system. Various adapters are available to change port frame diameter, reduce an input port's clear aperture, measure fiber optic power, connect lens tubes and mount sensors. Port plugs to block an unused sphere port are also available.
Divergent Beam Integrating Sphere Applications
The 819D-IS series spheres are configured to be suitable for a divergent beam measurement. A typical configuration has the source beam entering through the 0° port with a baffled detector mounted on the 90° port. Common applications include measuring power of divergent light sources such as laser diodes, lensed LEDs, lensed lamps and lensed fiber. For more details about these applications, please see our Integrating Sphere Fundamentals and Applications tutorial.
Cost Effective Barium Sulfate Sphere Coating
Our barium sulfate integrating sphere coating has an effective range from 300 nm to 2400 nm, with reflectivity greater than 97% at 600 nm. It is a cost effective and adequate for most radiation measurement applications. The unmatched environmental stability and high-performance of the Spectralon™ based spheres are derived from their rugged monolithic thermoplastic material and are superior to coated integrating spheres. In addition, their high damage threshold surface can be cleaned with distilled water. However, since the coating is water soluble, we recommend the PTFE based spheres for a high humidity environment.
Selecting an integrating sphere size
Among the factors in selecting the size of an integrating sphere is the physical limitation of the measurement setup that will be used. Generally, as the sphere diameter grows, the “integration” property of the sphere improves, the port size can be larger and higher input power can be accommodated. However, with the increasing attenuation of the setup, the throughput will be decreased.
