Loading...
Please wait, while we are loading the content...
Similar Documents
Scanning afocal laser velocimeter projection lens system
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Copyright Year | 1982 |
| Description | A method and apparatus for projecting and focusing parallel laser light beams from a laser doppler velocimeter on a target area are described. The system includes three lenses. Two lenses work together as a fixed afocal lens combination. The third lens is a movable scanning lens. Parallel laser beams travel from the velocimeter through the scanning lens and through the afocal lens combination and converge, i.e., are focused, somewhere beyond. Moving the scanning lens relative to the fixed afocal combination results in a scanning of the focus area along the afocal combination's optical axis. |
| File Size | 299883 |
| Page Count | 4 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19820024836 |
| Archival Resource Key | ark:/13960/t1wd8pm71 |
| Language | English |
| Publisher Date | 1982-08-31 |
| Access Restriction | Open |
| Subject Keyword | Lasers And Masers Frequency Shift Laser Doppler Velocimeters Focusing Optical Scanners Laser Guidance Doppler Effect Lens Design Lenses Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Patent |
