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Polarization perception device
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Copyright Year | 1997 |
| Description | A polarization perception device comprises a base and a polarizing filter having opposite broad sides and a centerline perpendicular thereto. The filter is mounted on the base for relative rotation and with a major portion of the area of the filter substantially unobstructed on either side. A motor on the base automatically moves the filter angularly about its centerline at a speed slow enough to permit changes in light transmission by virtue of such movement to be perceived as light-dark pulses by a human observer, but fast enough so that the light phase of each such pulse occurs prior to fading of the light phase image of the preceding pulse from the observer's retina. In addition to an observer viewing a scene in real time through the filter while it is so angularly moved, or instead of such observation, the scene can be photographed, filmed or taped by a camera whose lens is positioned behind the filter. |
| File Size | 609705 |
| Page Count | 7 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19970016211 |
| Archival Resource Key | ark:/13960/t3fz26v74 |
| Language | English |
| Publisher Date | 1997-01-28 |
| Access Restriction | Open |
| Subject Keyword | Optics Patents Filters Polarized Electromagnetic Radiation Polarization Characteristics Inventions Light Transmission Field of View Polarization Modulation Polarized Light Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Patent |
