Optical: systems and elements – Lens – Anamorphic
Patent
1990-05-01
1992-03-10
Sugarman, Scott J.
Optical: systems and elements
Lens
Anamorphic
359710, G02B 1308, G02B 306
Patent
active
050953869
ABSTRACT:
An optical system for generating lines includes a source of a diverging light beam, a first cylindrical lens (104) which receives the light beam, and a second adjacent cylindrical lens (106) which is at an angle with respect to the first. The beam of light passes through the first and second cylindrical lenses (104, 106) to produce a planar beam of light (124) which becomes a line (122) when incident upon a surface (126). The cylindrical lenses (104, 106) are mounted so as to be rotatable both simultaneously and with respect to each other. The angle of the line generated by the lens configuration is a bisector of the obtuse angles formed by the principal axes of the cylindrical lenses (104, 106) except where the lenses are at right angles to one another. The rotation of both lenses simultaneously changes the angle of the line (128) while rotation of one lens with respect to the other adjusts the focus of the line. The system generates long, sharp lines of substantially even brightness along the length of the line while allowing control of the focus (zoom capability) and the length of the projected line, and enabling two short focal length lenses to perform like one long focal length lens. The system for generating lines may be used as part of a patient positioning system.
REFERENCES:
patent: 3629594 (1971-12-01), Sandberg
patent: 3861807 (1975-01-01), Lescrenier
patent: 4025200 (1977-05-01), Zeineh
patent: 4083239 (1978-04-01), Malcolm et al.
patent: 4192578 (1980-03-01), Suzuki et al.
patent: 4203652 (1980-05-01), Hanada
patent: 4230942 (1980-10-01), Stauffer
patent: 4253735 (1981-03-01), Kawamura et al.
patent: 4284994 (1981-08-01), Radl
patent: 4318594 (1982-03-01), Hanada
patent: 4372640 (1983-02-01), LaCroix
patent: 4393408 (1983-07-01), Beck et al.
patent: 4415239 (1983-11-01), Humphrey
patent: 4429946 (1984-02-01), Haines
patent: 4474438 (1984-10-01), Rebholz et al.
patent: 4521087 (1985-06-01), Hayes et al.
patent: 4589738 (1986-05-01), Ozaki
patent: 4620768 (1986-11-01), Tatsuno et al.
patent: 4627685 (1986-12-01), Sakuma
patent: 4636080 (1987-01-01), Feldman
patent: 4643516 (1987-02-01), Ogura
patent: 4693567 (1987-09-01), Ozaki
patent: 4720632 (1988-01-01), Kaneko
patent: 4733944 (1988-03-01), Fahlen et al.
patent: 4820911 (1989-04-01), Arackellian et al.
Volosov et al.; "Effect of the Spatial Structure of a Lasar Beam on the Generation of the Second Harmonic in ADP and KDP Crystals"; Optics & Spectroscopy; vol. 21, No. 6; pp. 392-394.
Brochure published by Gammex, Inc. describing "THER-A-CROSS X Laser System" which generates lines of light for use in patient positioning, 1989.
Lescrenier Charles
Sugarman Scott J.
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