Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1981-04-15
1983-07-19
Moore, David K.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
350 9612, 324 77K, G02B 514
Patent
active
043940609
ABSTRACT:
A very compact light beam scanning system is provided by utilizing the optical integrated circuit technique. A Luneburg lens of As.sub.2 S.sub.3 and a SAW transducer device are provided on a waveguide and a wideband heterodyning RF oscillator including two varactor tuned oscillators and a digital linearization circuit are provided as the drive circuit for the transducer device.
REFERENCES:
patent: 4253060 (1981-02-01), Chen
patent: 4297704 (1981-10-01), Marom et al.
patent: 4348074 (1982-09-01), Burns et al.
S. K. Yao, Guided-Wave Optical Thin-Film Luneburg Lenses: Fabrication Technique and Properties, Appl. Optics, 18, 4067 (Dec. 1979).
S. K. Yao, Theoretical Model of Thin-Film Deposition Profile with Shadow Effect, J. App. Phys., 50, 3390 (May 1979).
S. K. Yao, and D. B. Anderson, Shadow Sputtering Diffraction-Limited Waveguide Luneburg Lenses, App. Phys. Lett. 33, 307 (Aug. 1978).
T. Tamir, Integrated Optics, published by Spring Verlag, Inc. (1975), pp. 13-29; 83-90; 139-141; 167-189.
E. G. Lean, et al., Thin Film Acousto-Optic Devices, Proc. IEEE 64, 779 (1976).
Tsai, Guided-Wave Acousto-Optics Fundamentals and Wideband Applications, SPIE 139, 132, Guided Wave Optical Systems and Devices (1978).
Kenan Richard P.
Ridgway Richard
Verber Carl M.
Canon Kabushiki Kaisha
Moore David K.
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