Results 251 to 260 of about 841,302 (305)
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Applied Optics, 1972
A laser image recorder is described, which is unique because of its advanced design and the state-of-the-art components employed to achieve high performance and versatility. The critical components are the pyramidal mirror scanner and the beam focusing lens.
N, Gramenopoulos, E D, Hartfield
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A laser image recorder is described, which is unique because of its advanced design and the state-of-the-art components employed to achieve high performance and versatility. The critical components are the pyramidal mirror scanner and the beam focusing lens.
N, Gramenopoulos, E D, Hartfield
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Amplitude-modulated laser imager
Applied Optics, 2004Laser systems have been developed to image underwater objects. However, the performance of these systems can be severely degraded in turbid water. We have developed a technique using modulated light to improve underwater detection and imaging. A program, Modulated Vision System (MVS), which is based on a new theoretical approach, has been developed to ...
Linda, Mullen +5 more
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Ophthalmic Surgery, Lasers & Imaging
Ophthalmic Surgery, Lasers and Imaging Retina, 2003The Official Journal of the International Society for Imaging in the ...
Joel S, Schuman, David S, Greenfield
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Laser Doppler Perfusion Imaging
Conference on Lasers and Electro-Optics Europe, 1996Laser Doppler Perfusion Imaging (LDPI) creates two-dimensional flow-maps of the tissue perfusion. A laser beam scans the tissue surface step-wise by means of a computer controlled stepper motor system that forms an integral part of a camera-like device positioned above the tissue surface.
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International Symposium for Testing and Failure Analysis, 2010
Abstract Laser induced emission and photocurrents with exponential power scaling were discovered using a near IR Raman laser scanning microscope. The potential for utilizing these highly non-linear effects for sub-diffraction limited imaging has been explored both theoretically and experimentally. A three-fold improvement over the linear
R. Aaron Falk, Tram Pham
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Abstract Laser induced emission and photocurrents with exponential power scaling were discovered using a near IR Raman laser scanning microscope. The potential for utilizing these highly non-linear effects for sub-diffraction limited imaging has been explored both theoretically and experimentally. A three-fold improvement over the linear
R. Aaron Falk, Tram Pham
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Laser Detection of Photoinjected Images
Applied Optics, 1975An image detection technique using remote ir laser readout of optically injected carriers is described. The image target consists of homogeneous, contact-free semiconductor surfaces. The equations governing sensitivity, response time, and resolution are presented. Experimental results and practical configurations are described.
N N, Axelrod, R A, Stern
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SPIE Proceedings, 1985
Laser imagers, operating at long ranges, have recently become of interest for both military and civilian applications. Systems using large optics and powerful sources are expensive to build and test, and so the image signal to noise and resolution performance should be investigated analytically before testing.
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Laser imagers, operating at long ranges, have recently become of interest for both military and civilian applications. Systems using large optics and powerful sources are expensive to build and test, and so the image signal to noise and resolution performance should be investigated analytically before testing.
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Journal of Electronic Imaging, 1993
A hyperacuity laser imager utilizes gray source data and overscanned (enhanced sampling reconstruction) gray exposure to achieve fully saturated black-and-white image rendering on the photoreceptor at 4800/in. addressability in both the fast and the slow scan directions, while maintaining a 400 lines/in. frequency response. Conventional laser printing
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A hyperacuity laser imager utilizes gray source data and overscanned (enhanced sampling reconstruction) gray exposure to achieve fully saturated black-and-white image rendering on the photoreceptor at 4800/in. addressability in both the fast and the slow scan directions, while maintaining a 400 lines/in. frequency response. Conventional laser printing
openaire +1 more source