KEVIN M MCINTYRE, MD
Psychiatric in Rochester, NY

6408115, Jun 18, 2002

Jun 2, 2000

09/586440

Kevin J. McIntyre - Rochester NY 14609

G02B 626

385 33, 385 34, 385 37, 359131

In order to correct optical couplers, which couple light among optical fibers arranged at an input (light source) port and output ports which are spaced off the optical axis of the coupler for optical aberration, including astigmatic aberration, anamorphic lenses are used in the coupler instead of lenses with rotationally symmetric surfaces. The anamorphic lenses may be collimating and decollimating lenses arranged along an optical axis on opposite sides of a wave length beam splitting filter which reflects and transmits different portions of the source spectrum. These lenses are anamorphic lenses with toroidal surfaces instead of rotationally symmetric surfaces, as in such couplers of conventional design. The wave front error and the insertion loss of the coupler is substantially reduced providing a substantial improvement in coupling efficiency and in coupling system performance.

5838480, Nov 17, 1998

Apr 29, 1996

8/639588

Kevin J. McIntyre - Rochester NY
G. Michael Morris - Fairport NY

The University of Rochester - Rochester NY

G02B 2608

359205

An improved optical system having diffractive optic elements is provided for scanning a beam. This optical system includes a laser source for emitting a laser beam along a first path. A deflector, such as a rotating polygonal mirror, intersects the first path and translates the beam into a scanning beam which moves along a second path in a scan plane. A lens system (F-. theta. lens) in the second path has first and second elements for focusing the scanning beam onto an image plane transverse to the scan plane. The first and second elements each have a cylindrical, non-toric lens. One or both of the first and second elements also provide a diffractive element, which provides not only astigmatic correction, but may further provide chromatic aberration correction of the scanning beam. This astigmatic correction is achieved without the presence of any lens having a toroidal (toric) surface. The system may further have a third element in the first path of the beam prior to the deflector.

6075650, Jun 13, 2000

Jun 10, 1998

9/095300

G. Michael Morris - Fairport NY
Kevin J. McIntyre - Rochester NY
Kenneth F. Walsh - Lima NY

Rochester Photonics Corporation - Rochester NY

G02B 906, G02B 302

359641

A lens shapes a diverging laser diode beam, and particularly circularizes and collimates, or diverges, or converges the beam. The lens may be part of an optical system, or part of a laser diode assembly. The lens is constituted of a body, the opposite ends of which are spaced from each other. The surfaces of the ends may be toric with the toric centers being coincident with the optical axis. The surfaces also have curvature profiles which circularize and collimates, or diverges, or converges collimates the beam. The curvature profile of one of the first and second surfaces has a correction profile which is a function of Zernike polynomials, thereby reducing wavefront error of the beam exiting the lens. The correction profile is also a function of the offset of the laser diode from the optical axis (misalignment), thereby increasing the misalignment tolerances for beam to lens centering. The curvature profiles of the surfaces may have correction for astigmatism in the beam shape produced by the laser diode.

5256853, Oct 26, 1993

Jul 31, 1991

7/738704

Kevin J. McIntyre - Rochester NY

Bausch & Lomb Incorporated - Rochester NY

B23K 2606

21912175

A method for shaping the surface of an optical target, said method comprising the steps of: addressing a ring of laser radiation to the surface of the optical target domain, said laser radiation being of sufficient fluency and energy to photoablate the material forming the body of said optical target domain, sweeping the optically functional portion of said target domain with said laser ring by effectively changing the radius of said ring in a prescribed fashion within the range of the radius of the optical target domain and zero.

5685998, Nov 11, 1997

Mar 6, 1996

8/611554

John H. Shannon - Hamlin NY
Kevin J. McIntyre - Rochester NY

Bausch & Lomb Incorporated - Rochester NY

B23K 2600

21912169

Laser radiation can be directed through an aperture to a target surface without causing the expected diffraction groove effect by moving the target relative to the stage to which the aperture is attached in such a fashion as to interrupt the diffraction pattern and minimize the production of diffraction grooves.

5257706, Nov 2, 1993

Sep 29, 1992

7/952938

Kevin J. McIntyre - Rochester NY

Bausch & Lomb Incorporated - Rochester NY

B23K 2600

21912169

A method is disclosed for ablating a target surface and cleaning an ablated target surface resulting in the reduction of ablation debris accumulation.