Broadband diffractive lens or imaging element
Patent
·
OSTI ID:6896401
This patent describes a broadband diffractive lens or imaging element. It comprises: a diffractive element having a plurality of sectors or segments, each sector or segment having a diffractive geometry patterned thereon for focusing or imaging a different narrow-band of radiation, all sectors or segments having substantially the same primary focal length.
- Assignee:
- Dept. of Energy, Washington, DC (United States)
- Patent Number(s):
- A; US 5071207
- Application Number:
- PPN: US 7-587699
- OSTI ID:
- 6896401
- Country of Publication:
- United States
- Language:
- English
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