Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Reexamination Certificate
2007-06-05
2007-06-05
Le, Que T. (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Photocell controlled circuit
C250S2140VT
Reexamination Certificate
active
10258917
ABSTRACT:
Plural electronic or optical images are provided in a streak optical system, as for instance by use of plural slits instead of the conventional single slit, to obtain a third, fourth, etc. dimension—rather than only the conventional two, namely range or time and azimuth. Such additional dimension or dimensions are thereby incorporated into the optical information that is to be streaked and thereby time resolved. The added dimensions may take any of an extremely broad range of forms, including wave-length, polarization state, or one or more spatial dimensions—or indeed virtually any optical parameter that can be impressed upon a probe beam. Resulting capabilities remarkably include several new forms of lidar spectroscopy, fluorescence analysis, polarimetry, spectropolarimetry, and combinations of these, as well as a gigahertz wavefront sensor.
REFERENCES:
patent: 4238148 (1980-12-01), Courtney-Pratt
patent: 6873716 (2005-03-01), Bowker et al.
Hiroshi Nakajima et al., “The analysis of combustion flame in a DI diesel engine”, SPIE 1997, pp. 27-37, vol. 3173.
Gary L. Stradling, “Soft x-ray streak cameras”, SPIE 1988, pp. 194-212, vol. 1032.
Areté Associates
Le Que T.
Lippman Peter I.
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