Quotables
"The horse is here to stay, the automobile is only a novelty - fad."
President of Michigan Savings Bank ; 1903
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 4076381 | On line electro-optic modulator An electro-optic modulator wherein a light waveguide is in the form of a film disposed on a prismatic substrate and beneath modulating electrodes. The substrate has opposite end faces disposed at predetermined angles to its longitudinal axis and cooperate... | 02/28/1978 |
| 4067642 | Reduction of modal and chromatic material dispersion in a multimode optical fiber Modal dispersion and chromatic material dispersion in a multimode optical fiber is reduced by feeding the rays of the light beam into the end of the optical fiber the angle of each ray relative to the axis of the fiber varied in accordance with the wavele... | 01/10/1978 |
| 4068121 | Light collector and prism light source for photoelectric readers A light collector and prism that collects light from a single bulb and produces a narrow strip light beam is disclosed. The light collector and prism is formed of an elongate, integral piece of transparent material (plastic) and includes a light collectin... | 01/10/1978 |
| 4067643 | Input and output devices for optical fiber Input and output devices for an optical fiber include an acoustic transducer for generating a planar acoustic wave tilted at an angle with respect to the axis of an optical fiber embraced by a quartz block. The gap between the optical fiber and the quartz... | 01/10/1978 |
| 4057319 | Optical system using a hologram coupler An optical system in which individual connections are made involving the passage of light between a specific device in one array of optical devices and a specific device in another array of optical devices includes a phase halogram plate of the transmissi... | 11/08/1977 |
| 4047795 | Optical integrated circuit laser beam scanner A rapid laser scanning system utilizing an optical grating coupler (OGC) reby the angle at which an incident laser beam is outputted therefrom may be varied by the imposition of an electric field on a thin film underlying the coupler at right angles to t... | 09/13/1977 |
| 4018506 | Fiber-optic to planar-waveguide optical coupler By coupling light from a coupling portion of a thin fiber core to a planar waveguide film through the thickness of the substrate supporting the film, sufficient spreading by diffraction takes place in the light traveling through the thickness of the subst... | 04/19/1977 |
| 4006963 | Controllable, electro-optical grating coupler A controllable, electro-optical grating coupler for the optional switch-over or modulation of optical waves in waveguides includes a substrate with a first areal electrode arranged on the substrate and a first dielectric layer arranged on the electrode an... | 02/08/1977 |
| 4003629 | Coupling device for light waves An improved device of the type suitable for coupling light waves from a first waveguide into a second waveguide, both waveguides being arranged by an integrated technique on a given substrate in intersecting fashion one above the other. Insulated electrod... | 01/18/1977 |
| 3982810 | Directional radiation by asymmetrical dielectric gratings There is disclosed a technique whereby a dielectric grating disposed on a in film that has a surface wave propagating thereon can concentrate the power from this wave into a beam that is either above or below the grating according to the profile of the gr... | 09/28/1976 |
| 3977763 | Coupling device for an optical waveguide and a method for manufacturing such a device The invention relates to a coupling device for an optical waveguide, using a hologram recorded in a photoresist layer arranged on a face of the waveguide, and capable of coupling a wave having a predetermined wafe front and travelling outside the waveguid... | 08/31/1976 |
| 3975082 | Laser beam coupling arrangement A laser beam coupling arrangement for wide-band optical data switching systems, consisting of an electronically controllable, optical mask, a hologram, a waveguide matrix and a coherent light source employs dynamic hologram recording in which a sandwich s... | 08/17/1976 |
| 3957343 | Optical communications systems Energy propagating in a dielectric optical waveguide may be transferred from one mode of propagation to another by inducing a spatially undulatory variation in refractive index in the core of the dielectric optical waveguide. Such a variation may be induc... | 05/18/1976 |
| 3951513 | Semiconductor light modulating optical wave guide A wave guide device for varying the polarization of a light beam comprises a diode formed of a film of a material such as a glassy amorphous material or a plastic of a first kind of electrical conductivity (P or N) disposed on a substrate of semiconductor... | 04/20/1976 |
| 3944326 | Waveguide A waveguide for submillimeter and infrared wavelength range electromagnetic radiation comprises a metal grating with a grating constant criterion: ##EQU1## BEING GREATER THAN (2/λ)2, WHERE λ IS WAVELENGTH OF AN ELECTROMAGNETIC WAVE PROPA... | 03/16/1976 |
