Radiant energy – Ionic separation or analysis – Static field-type ion path-bending selecting means
Patent
1988-02-09
1989-07-11
Corbin, John K.
Radiant energy
Ionic separation or analysis
Static field-type ion path-bending selecting means
2504921, 350 361, 35016217, 350320, G02B 518
Patent
active
048465526
ABSTRACT:
The high diffraction efficiency regime of binary gratings occurs at periodicities on the order of a wavelength in order to produce grating which diffract radiation with efficiencies of greater than 90%, a fabrication procedure is disclosed which uses halographic and very large scale integration techniques which allow fine control over the periodicity and depth parameters to produce binary planar optical elements having a ratio of .lambda./T greater than one (where .lambda. equals the wavelength of an illuminating wavefront, and T equals the grating periodicity). Additionally, the disclosed process produces high optical quality diffractive elements with phase precision of as high as .lambda./100. These diffractive elements include laser beam multiplexers, beam profile shapers, and binary lenses which are lossless optical transfer functions.
REFERENCES:
patent: 3328192 (1967-06-01), Soules
patent: 3337945 (1967-08-01), Mooney
patent: 3814498 (1974-06-01), Tomlinson, III et al.
patent: 4305666 (1981-12-01), Becherer et al.
patent: 4360582 (1982-11-01), Taguchi et al.
patent: 4360586 (1982-11-01), Flanders et al.
patent: 4401367 (1983-08-01), Grantham et al.
patent: 4678919 (1987-07-01), Sugishima et al.
patent: 4712013 (1987-12-01), Nishimura et al.
Beasley et al., "Electron-Beam Pattern Generator," Philips Technical Review, vol. 37, No. 11/12, pp. 334-346 (1970).
Wilson et al., "Automatic Electron Beam Fabrication of Micron-Size Devices," Conference on Scanning Electron Microscopy, Part IV, pp. 659-668 (Apr., 1976).
Veldkamp et al., "Developments in Fabrication of Binary Optical Elements," SPIE, vol. 437, International Conference on Computer-Generated Holography, 1983, pp. 54-59.
Swanson Gary J.
Veldkamp Wilfrid B.
Auton William G.
Corbin John K.
Lerner Martin
Singer Donald J.
The United States of America as represented by the Secretary of
LandOfFree
Method of fabricating high efficiency binary planar optical elem does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of fabricating high efficiency binary planar optical elem, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of fabricating high efficiency binary planar optical elem will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-432189