Broadband radiometer
A broadband radiometer is disclosed including (a) an optical integrating sphere having generally spherical integrating chamber and an entry port for receiving light (e.g., having visible and ultraviolet fractions), (b) a first optical radiation detector for receiving light from the sphere and producing an electrical output signal corresponding to broadband radiation, (c) a second optical radiation detector for receiving light from the sphere and producing an electrical output signal corresponding to a predetermined wavelength fraction of the broadband radiation, and (d) an output for producing an electrical signal which is proportional to the difference between the two electrical output signals. The radiometer is very useful, for example, in measuring the absolute amount of ultraviolet light present in a given light sample. 8 figs.
- DOE Contract Number:
- AC02-83CH10093
- Assignee:
- Dept. of Energy, Washington, DC (United States)
- Patent Number(s):
- US 5332904; A
- Application Number:
- PPN: US 7-967481
- OSTI ID:
- 7163112
- Resource Relation:
- Patent File Date: 28 Oct 1992
- Country of Publication:
- United States
- Language:
- English
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