Very fast time resolved imaging in multiparameter measurement space
First Claim
1. A streak lidar imaging system for measurements of a medium with any objects therein;
- said system comprising;
a light source for emitting at least one beam into such medium;
an imaging device for receiving light reflected from such medium and forming plural images, arrayed along a streak direction, of the reflected light;
wherein the imaging device comprises plural slits for selecting particular bands of the plural images respectively; and
a device for displacing all the plural images along the streak direction.
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Accused Products
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.
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Citations
52 Claims
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1. A streak lidar imaging system for measurements of a medium with any objects therein;
- said system comprising;
a light source for emitting at least one beam into such medium; an imaging device for receiving light reflected from such medium and forming plural images, arrayed along a streak direction, of the reflected light; wherein the imaging device comprises plural slits for selecting particular bands of the plural images respectively; and a device for displacing all the plural images along the streak direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
- said system comprising;
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28. A lidar imaging system for optical measurements of a medium with any objects therein;
- said system comprising;
a light source for emitting at least one light pulse into such medium; and means for receiving the at least one light pulse reflected from such medium and for forming from each reflected pulse a set of plural substantially simultaneous two-dimensional output images, each image representing reflected energy in two dimensions. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
- said system comprising;
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41. A streak lidar imaging system for making measurements of a medium with any objects therein;
- said system comprising;
a light source for emitting into such medium a beam in an eye-safe wavelength range; an imaging device for receiving light reflected from such medium and forming an image of the reflected light; an upconverter for generating light at or near the visible wavelength region in response to the reflected light in an eye-safe wavelength range; and a device for displacing the image along a streak direction. - View Dependent Claims (42, 43, 44)
- said system comprising;
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45. A streak lidar imaging system for making measurements of a medium with any objects therein;
- said system comprising;
a light source for emitting into such medium a beam in a substantially eye-safe wavelencrth range; an imaging device for receiving light reflected from such medium and forming an image of the reflected light; an upconverter for generating light at or near the visible wavelength region in response to the reflected light in a substantially eye-safe wavelength range; and a device for displacing the image alone a streak direction;
wherein;the light source emits said beam in a wavelength range at substantially 1½
microns.
- said system comprising;
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46. A streak lidar imaging system comprising:
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a light source for emitting a beam; an imaging device for receiving light originating from the source and for forming an image of the received light; at least one microelectromechanical-system mirror for displacing the image along a streak direction; and an image-responsive element for receiving and responding to the displaced image. - View Dependent Claims (47, 48, 49, 50, 51, 52)
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Specification