Sphere characteristics are:
| Sphere radius: | 1-cm-diameter port |
| Sphere wall reflectivity: | r = 0.997 |
| Sphere collection port size: | 1-cm diameter |
| Sphere detection port size: | 0.5-cm diameter port. |
Collection | Radiometry | ECE 532 | OGI Optics Courses | OMLC homepage.