| Patent Number |
Title Of Patent |
Date Issued |
| 7333210 |
Method and apparatus for feedback control of tunable laser wavelength |
February 19, 2008 |
| A method and system for controlling the wavelength of light emitted by a tunable laser. The system includes a wavelength tuner that provides information of a desired wavelength; a coupler for tapping a portion of the light from the tunable laser; and an apparatus for measuring the ac |
| 7280216 |
Method and apparatus for determining the wavelength of an input light beam |
October 9, 2007 |
| A method and apparatus for measuring the wavelength of an input light beam whereby the input light beam is split into two light beams which are directed through two paths of different optical length. The light beams are interfered with each other in order to form a fringe pattern at an |
| 6813521 |
Medical electrical lead |
November 2, 2004 |
| A medical electrical lead is provided that is readily manufactured using a minimal number of parts, has a reduced size and improved reliability during implantation and extraction. The lead includes a modular electrode head assembly that is joined to a lead body at a butt joint. The butt |
| 6636664 |
Single channel M x N optical fiber switch |
October 21, 2003 |
| A single channel M.times.N optic switch is provided in accordance with the present invention to steer light radiating from any one fiber in an input bundle into any selected fiber in an output bundle. Precision beam-steering optics is implemented using a Risley prism pair controlled |
| 6295806 |
Catalyst temperature model |
October 2, 2001 |
| A method for calculating the temperature of a catalyst in a catalytic converter. The method includes the steps of determining a first catalyst temperature; determining a stabilized catalyst temperature; and using the first catalyst temperature, the stabilized catalyst temperature and an |
| 6215755 |
Optical data storage technology |
April 10, 2001 |
| A read/write arm for use in an optical memory system. The read/write arm of the present invention has reflective surfaces for directing an optical beam from the arm rotation axis on to an optical disk. The arm features a lightweight lens mounted at one end of the arm for focusing a light |
| 6214632 |
Electro-optical device with integral optical element |
April 10, 2001 |
| Electro-optical device characterized by having been formed into an individual unit with an integral optical element, and method to form the device. An optical element, for instance a length of cylindrical microlens, is aligned with a diode strip having a plurality of diodes, for inst |
| 6088168 |
Laser diode assembly including a carrier-mounted crossed pair of cylindrical microlenses |
July 11, 2000 |
| Laser diode/cylindrical microlens assembly including a crossed-pair of passively aligned cylindrical microlenses attached to a substrate on which is mounted a laser diode chip. The microlenses are mounted in an "aplanatic" configuration with their flat surfaces facing the emitting fa |
| 6066166 |
Medical electrical lead |
May 23, 2000 |
| An implantable cardioversion/defibrillation lead having an elongated insulative lead body carrying a tip electrode located at its distal end and a cardioversion/defibrillation electrode located on the lead body, proximal to the tip electrode. An elongated conductor coupled to the tip |
| 5963577 |
Multiple element laser diode assembly incorporating a cylindrical microlens |
October 5, 1999 |
| Multiple element laser diode assembly incorporating a cylindrical microlens and at least one of an astigmatism correcting element and a collimating element. The use of a single purpose cylindrical microlens, for instance for circularizing a beam of laser light output from said diode, in |
| 5867327 |
Process for manufacturing cylindrical microlenses |
February 2, 1999 |
| Method for manufacturing cylindrical microlenses having exceptional optical properties, and the lenses manufactured according to the process. According to the present invention, a method is provided for fabricating cylindrical microlenses, the method comprising the steps of forming a |
| 5844723 |
Laser diode assembly including a carrier-mounted crossed pair of cylindrical microlenses |
December 1, 1998 |
| Laser diode/cylindrical microlens assembly including a crossed-pair of passively aligned cylindrical microlenses attached to a substrate on which is mounted a laser diode chip. The microlenses are mounted in an "aplanatic" configuration with their flat surfaces facing the emitting fa |
| 5704707 |
Motorcycle safety helmet system |
January 6, 1998 |
| A helmet-mounted wireless frequency-modulated infrared beam-actuated auxiliary brakelight system capable of reliable operation in all ranges of ambient light while permitting the rider to turn his head from side to side over a large angle approaching 180 degrees or more. The system c |
| 5636059 |
Cylindrical microlens external cavity for laser diode frequency control |
June 3, 1997 |
| This invention relates to a simple, compact, and robust, cylindrical microlens external cavity for laser diode frequency control. The microlens system makes possible a tunable laser diode that utilizes an orthogonal pair of collimating microlenses to form a short external cavity for |
| 5581414 |
Microlens assemblies and couplers |
December 3, 1996 |
| Disclosed is a lens assembly having a first cylindrical microlens having a first microlens longitudinal axis. A flat sheet of material having a hole therein is attached to the microlens, with the microlens traversing the hole. The microlens is oriented with the first microlens longitudin |
| 5553174 |
Monolithic cylindrical optic |
September 3, 1996 |
| A new cylindrical minilens and a new lens system for collimating and circularizing the output beam from a laser diode are provided which can be mounted outside the can of a laser diode. The system is made up of two lens elements. The first lens element is a collimating lens which is |
| 5270792 |
Dynamic lateral shearing interferometer |
December 14, 1993 |
| A parallel plate lateral shearing interferometer allows the shearing plate to oscillate through a small angle periodically causing the interference fringe pattern to translate on a display surface providing an indication of the direction of adjustment required to collimate a beam. At the |
| 5237454 |
Blackhole laser beam terminator |
August 17, 1993 |
| A terminator system particularly suited for beams of high intensity electromagnetic radiation such as from a laser includes an enclosure having a hole therein and a black mirror mounted in the enclosure. The black mirror has a specularly reflecting surface opposite the hole and is or |
| 5202741 |
Active imaging system with Faraday filter |
April 13, 1993 |
| An active imaging system has a low to medium powered laser transmitter and receiver wherein the receiver includes a Faraday filter with an ultranarrow optical bandpass and a bare (nonintensified) CCD camera. The laser is locked in the vicinity of the passband of the Faraday filter. The |
| 5181224 |
Microoptic lenses |
January 19, 1993 |
| The present invention provides several novel diffraction limited microlens configurations which are especially valuable for use in conjunction with laser diodes, and optical fibers. Collimators, circularizers and focusers (couplers) are provided. |
| 5155631 |
Method for fabrication of cylindrical microlenses of selected shape |
October 13, 1992 |
| The present invention provides a diffraction limited, high numerical aperture (fast) cylindrical microlens. The method for making the microlens is adaptable to produce a cylindrical lens that has almost any shape on its optical surfaces. The cylindrical lens may have a shape, such as |
| 5081639 |
Laser diode assembly including a cylindrical lens |
January 14, 1992 |
| The present invention provides a diffraction limited, high numerical aperture (fast) cylindrical microlens. The method for making the microlens is adaptable to produce a cylindrical lens that has almost any shape on its optical surfaces. The cylindrical lens may have a shape, such as |
| 5080706 |
Method for fabrication of cylindrical microlenses of selected shape |
January 14, 1992 |
| The present invention provides a diffraction limited, high numerical aperture (fast) cylindrical microlens. The method for making the microlens is adaptable to produce a cylindrical lens that has almost any shape on its optical surfaces. The cylindrical lens may have a shape, such as |
| 5052806 |
Apparatus for measuring non-absorptive scattering |
October 1, 1991 |
| Apparatus is provided for measuring non-absorptive scattering with an exceptionally high degree of accuracy. In the preferred mode, the apparatus can also be used to measure absorptive scattering, thus providing a method of distinguishing absorptive scattering from scattering due to |
| 4820047 |
Laser heterodyne apparatus for measuring optical power |
April 11, 1989 |
| A detection system is provided which has a very wide linear dynamic range (for a typical laser, fifteen orders of magnitude), as well as a high sensitivity (shot noise limited), high angular resolution (diffraction limited), and which is also polarization resolving. The apparatus is used |
| 4771171 |
Isotope analysis device and method |
September 13, 1988 |
| Isotope analysis device comprising a racetrack-shaped ion storage ring, a resonant charge exchange device and a laser photoionization device. Isotope ions to be analyzed are continuously injected into the racetrack in a first orbit and pass through the resonant charge exchange device |
| 4251704 |
Unit for induction heating and hardening gear teeth |
February 17, 1981 |
| An induction heating unit is disclosed which is operable to inductively heat and harden teeth on circumferentially extending radially thin flange segments of a gear. The unit includes an inductor conforming in circumferential contour and length to the flange segment and having radial |
| 4173442 |
Apparatus and method for determination of wavelength |
November 6, 1979 |
| An apparatus and method for determining the wavelength of light such as mchromatic radiation from a laser source. The apparatus comprises a Fizeau-type interferometer, photoelectric means for receiving the interference fringe pattern produced in the interferometer, means for determi |
