Norman Howard Schiller

US Patent:

44384165, Mar 20, 1984

Filed:

Jan 25, 1982

Appl. No.:

6/342486

Inventors:

Norman H. Schiller - Queens NY
Robert R. Alfano - Bronx NY

Assignee:

Hamamatsu Corporation - Middlesex NJ

International Classification:

H01P 900

US Classification:

333160

Abstract:

An electrical device for use in delaying the time of arrival of an electrical signal with fixed increments of delay in the picosecond range and having a minimum delay time in picoseconds is disclosed. In one embodiment of the invention, the device comprises a plurality of small T shaped RF coaxial connectors fixedly coupled together in series with the connectors themselves serving as delay elements. One of the unconnected (open) ports of the connector at one end of the series is used as the entrance port for the device and the other unconnected ports of the connectors in the series are used as exit ports for the device. An electrical signal introduced into the device through the entrance port and then exiting through one of the exit ports is delayed according to the total path length travelled by the signal in passing from the entrance port to the particular exit port selected to be used as the exit port, each port in the path travelled by the signal from the entrance port to the exit port producing a time delay in the order of picoseconds, the exact number of picoseconds for a port depending on the specific type of connector employed. In another embodiment of the invention, a plurality of transmission lines having different lengths between about 10 to 100 mm etched on a printed circuit board are connected to individual double pole double throw switches which are coupled together in series, each transmission line causing a time delay of a signal passing through it of a different number of picoseconds.

US Patent:

62044974, Mar 20, 2001

Filed:

Oct 26, 1998

Appl. No.:

9/179113

Inventors:

Norman Schiller - Whitestone NY
Chantal Schiller - Whitestone NY

International Classification:

H02P 122

US Classification:

250221

Abstract:

An air bag deployment trigger sensor for activating the deployment of an air bag in a vehicle as a result of an impact or collision. The air bag deployment trigger sensor utilizes a sacrificial waveguide which transmits optical signals from an emitter along the waveguide, and which are received by a detector. A sensor circuit attached to the detector senses the optical signal and decodes, measures, or compares the optical signal with a predetermined electrical signal produced by the detector. The sensor's detection of an alteration or interruption of the optical signal along the waveguide triggers air bag deployment. In accordance with one embodiment of the invention the sensor arrangement is employed for deactivating electric windows, sun-roofs and doors, when it senses an object being placed in the path of closure.

US Patent:

46309250, Dec 23, 1986

Filed:

Nov 1, 1982

Appl. No.:

6/437897

Inventors:

Norman H. Schiller - Whitestone NY
Robert R. Alfano - Bronx NY

Assignee:

Hamamatsu Corp. - Middlesex NJ

International Classification:

G01J 330

US Classification:

356318

Abstract:

A temporal spectral photometer for use in obtaining spectral and temporal information simultaneously of an ultrafast pulse of luminescent light emitted from a sample upon excitation thereof includes an excitation section and a detection section. The excitation section includes a picosecond laser for exciting the sample to emit luminescent light and imaging optics for imaging the emitted light. The detection section includes a pin hole slit through which light from the imaging optics is admitted, a streak camera tube, an optical system including a grating for forming an image of the pin hole slit on the photocathode of the streak camera tube and at the same time dispersing the light admitted through the pin hole slit into its component wavelengths, a micrometer assembly mechanically coupled to the grating for selectively changing the wavelength region of dispersed light impinging on the photocathode, a video camera, a camera lens system for imaging the output image formed on the phosphor screen of the streak camera tube onto the input end of the video camera, a digital temporal analyzer coupled to the output of the video camera for digitizing and analyzing image information from the video camera and a video monitor coupled to the output of the temporal analyzer for displaying the analyzed data.

US Patent:

42776694, Jul 7, 1981

Filed:

Jul 6, 1979

Appl. No.:

6/055145

Inventors:

Robert R. Alfano - Riverdale NY
Norman H. Schiller - Whitestone NY

Assignee:

Hamamatsu T.V. Co, Ltd - Hamamatsu

International Classification:

B23K 2700

US Classification:

219121LK

Abstract:

Method and device for detecting the threshold of generation of a non-visible laser beam, wherein a dark colored film, enclosed in a transparent container, is placed in the path of the laser beam to cause the dark film to burn when the laser beam impinges thereon and wherein the transparent container prevents the vaporized film particles from the area impinged upon by the laser beam from escaping into the atmosphere.

US Patent:

52451771, Sep 14, 1993

Filed:

Oct 24, 1991

Appl. No.:

7/782292

Inventors:

Norman H. Schiller - Whitestone NY

International Classification:

G01V 904

US Classification:

250221

Abstract:

A system for detecting the presence of an object within a predetermined detection region. The system comprises a light source for producing a beam of light in the direction of the object to be detected and a pair of light detector units. The light detector units are angularly oriented so that their fields of view intersect to form a detection zone, the portion of the detection zone illuminated by the light beam defining a detection region. The outputs from said light detector units are coupled to an AND gate which, upon simultaneous receipt of output signals from both light detector units, emits a detection signal. If the object is disposed within the detection region and is illuminated by the light source, both light detector units will simultaneously emit an output signal, thereby causing the AND gate to emit a detection signal. In contrast, if the object is disposed outside of the detection region and/or is not illuminated by the light source, only one or none of the light detector units will emit an output signal and the AND gate will not emit a detection signal.

US Patent:

49691562, Nov 6, 1990

Filed:

Aug 21, 1987

Appl. No.:

7/087777

Inventors:

Norman H. Schiller - Whitestone NY
Robert R. Alfano - Bronx NY

International Classification:

H01S 3081

US Classification:

372 93

Abstract:

A laser is disclosed which includes an optical path length extender for increasing the optical path length of the laser cavity. The path length extender, which is disposed inside the laser cavity itself, includes a set of three curved mirrors each having the same curvature. The three mirrors are spaced and angularly positioned such that light entering the path length extender is reflected back and forth about the three mirrors a defined number of times before exiting the path length extender. By rotating one or two of the mirrors the number of reflections within the set of mirrors can be changed. The laser cavity configuration is particularly useful in a pulse laser for increasing the optical path length of the cavity for the purpose of increasing the pulse to pulse separation of the emitted pulses, when such an increase is desired, but is not limited exclusively to pulse lasers.

US Patent:

44357273, Mar 6, 1984

Filed:

May 27, 1982

Appl. No.:

6/382803

Inventors:

Norman H. Schiller - Queens NY
Robert R. Alfano - Bronx NY

Assignee:

Hamamatsu Corporation - Middlesex NJ

International Classification:

H04N 718

US Classification:

358139

Abstract:

Apparatus is disclosed for use in calibrating the time axis and intensity linearity of a streak camera or any optoelectronic device over any one of a number of different time scales. The apparatus includes a plurality of bundles of optical fibers mounted on a rotation wheel and a pulsed light source. Each bundle of optical fibers is made up of a plurality of optical fibers, each cut to a different length with the differences in length between the fibers in any one bundle being uniform and the differences in length of the fibers in one bundle being different from the differences in length of the fibers in each one of the other bundles. The fibers in each bundle are arranged so that one set of ends terminates in a common input plane and the other set of ends terminates in a common output plane. In using the apparatus, the rotation wheel is positioned so that a selected one of the bundles is located to receive the light pulse from the light source and transmit the light received into the slit of the streak camera. A light pulse entering the bundle from the input end emerges from the output end as a train of pulses of equal intensity, one from each fiber, separated in time from one another in accordance with the difference in lengths of the fibers.

US Patent:

58269037, Oct 27, 1998

Filed:

Feb 14, 1997

Appl. No.:

8/800478

Inventors:

Norman H. Schiller - Whitestone NY
Chantal G. Schiller - Whitestone NY

International Classification:

B06R 2132

US Classification:

280735

Abstract:

An air bag deployment trigger sensor for activating the deployment of an air bag in a vehicle as a result of an impact or collision. The air bag deployment trigger sensor utilizes a sacrificial waveguide which transmits optical signals from an emitter along the waveguide, and which are received by a detector. A sensor circuit attached to the detector senses the optical signal and decodes, measures, or compares the optical signal with a predetermined electrical signal produced by the detector. The sensor's detection of an alteration or interruption of the optical signal along the waveguide triggers air bag deployment.