Andrew C Sutton

US Patent:

20200096615, Mar 26, 2020

Filed:

Apr 18, 2019

Appl. No.:

16/388450

Inventors:

- Cupertino CA, US
Alexander Shpunt - Portola Valley CA, US
Andrew J. Sutton - Sunnyvale CA, US
Chandra S. Kakani - Fremont CA, US
Yuval Gerson - Sunnyvale CA, US

International Classification:

G01S 7/481
G01S 17/89
G01S 17/10
G01S 7/486
G02B 13/08

Abstract:

An optical device includes a transmitter, which emits a beam of optical radiation, and a receiver, which includes a detector configured to output a signal in response to the optical radiation. An active area of the detector has a first dimension along a first axis and a second dimension, which is less than the first dimension, along a second axis perpendicular to the first axis. An anamorphic lens, which collects and focuses the optical radiation onto the active area of the detector, has a first focal length in a first plane containing the first axis and a second focal length, greater than the first focal length, in a second plane containing the second axis. A scanner scans the beam across a target scene in a scan direction that is aligned with the first axis, and directs the optical radiation that is reflected from the target scene toward the receiver.

US Patent:

20190377136, Dec 12, 2019

Filed:

Dec 16, 2018

Appl. No.:

16/221523

Inventors:

- Cupertino CA, US
Andrew J. Sutton - Sunnyvale CA, US
Bryce T. Bradford - Cupertino CA, US
Yuval Gerson - Sunnyvale CA, US

International Classification:

G02B 6/35
G02B 26/08

Abstract:

An apparatus for driving and position sensing in a comb-drive actuator includes a generator, a driver circuit, sensing circuitry, and signal processing circuitry. The generator is configured to apply a sensing-voltage to a first electrode of the comb-drive actuator. The driver circuit is configured to apply a drive-voltage to a second electrode of the comb-drive actuator, having an opposite polarity relative to the first electrode. The sensing circuitry is configured to measure at the second electrode a sensed-waveform resulting from the sensing-voltage applied to the first electrode. The signal processing circuitry is configured to estimate a position of the first electrode relative to the second electrode based on the sensed-waveform.

US Patent:

20190324203, Oct 24, 2019

Filed:

Feb 10, 2019

Appl. No.:

16/271833

Inventors:

- Cupertino CA, US
Andrew J. Sutton - Sunnyvale CA, US
Alexander Shpunt - Portola Valley CA, US
Jason S. Pelc - Sunnyvale CA, US
Mark A. Arbore - Los Altos CA, US

International Classification:

G02B 6/12
G02B 6/122
G02B 6/13

Abstract:

An optoelectronic device includes a substrate, having a recess formed therein. An optical isolator is mounted in the recess. A laser includes a stack of epitaxial layers on the substrate and emits a beam of radiation toward the recess along a direction parallel to a surface of the substrate. A waveguide directs the beam emitted by the laser into the optical isolator.

US Patent:

20190097380, Mar 28, 2019

Filed:

Dec 21, 2017

Appl. No.:

15/849700

Inventors:

- Cupertino CA, US
Andrew J. Sutton - Sunnyvale CA, US
Ronen Akerman - Sunnyvale CA, US

International Classification:

H01S 3/23
H01S 5/065
H01S 3/094
H01S 3/10

Abstract:

A laser system includes a master oscillator, which emits a train of optical seed pulses with variable intervals between the pulses. An optical power amplifier includes an optical gain medium, which receives and amplifies the optical seed pulses from the master oscillator, and a pump, which applies pump radiation to the optical gain medium. A pulse generator applies a control input to the master oscillator, which causes the intervals between the optical seed pulses to vary by at least 50% at a rate of change that is greater than a response frequency of the optical gain medium. A control unit drives the pump responsively to predicted intervals between the optical seed pulses, at a variable pump power selected so that the pulse amplitudes of the output pulses vary by no more than 20% irrespective of the varying intervals between the optical seed pulses.

US Patent:

20190074661, Mar 7, 2019

Filed:

Dec 24, 2017

Appl. No.:

15/853800

Inventors:

- Cupertino CA, US
Andrew J. Sutton - Sunnyvale CA, US
Yakov G. Soskind - Plainsboro NJ, US

International Classification:

H01S 5/14
H01S 5/183
H01S 5/022
H01S 3/08

Abstract:

An optoelectronic device includes a semiconductor substrate and a vertical-cavity surface-emitting laser (VCSEL) light source formed on the substrate and configured to emit coherent light at a predefined wavelength along a beam axis perpendicular to a surface of the substrate. A block of a transparent material is mounted on the surface of the substrate and forms, with the VCSEL, a resonant cavity at the predefined wavelength having an entrance face that is aligned with the beam axis and an exit face that is laterally displaced with respect to the entrance face along a cavity axis running parallel to the surface of the substrate.

US Patent:

20180372847, Dec 27, 2018

Filed:

Dec 21, 2017

Appl. No.:

15/849701

Inventors:

- Cupertino CA, US
Andrew J. Sutton - Sunnyvale CA, US
Ariel Lipson - Tel Aviv, IL
Noel Axelrod - Jerusalem, IL

International Classification:

G01S 7/481
G02B 26/10
G01S 17/08

Abstract:

An optical device includes a light source, which is configured to emit a beam of light, and a sensor having a detection area. At least one scanning mirror is configured to scan the beam across a target scene. Light collection optics include a collection lens positioned to receive the light from the scene that is reflected from the at least one scanning mirror and to focus the collected light onto a focal plane, and a non-imaging optical element having a front surface positioned at the focal plane of the collection lens and a rear surface in proximity to the sensor and configured to spread the light focused by the collection lens over the detection area of the sensor.

US Patent:

20180081061, Mar 22, 2018

Filed:

Aug 10, 2017

Appl. No.:

15/673428

Inventors:

- Cupertino CA, US
Cristiano L. Niclass - San Jose CA, US
Richard E. Bills - San Jose CA, US
Moshe Laifenfeld - Haifa, IL
Mina A. Rezk - Haymarket VA, US
Alexander Shpunt - Portola Valley CA, US
Ron Sokolovsky - Sunnyvale CA, US
Tal Kaitz - Kiryat Ono, IL
Ronen Akerman - Sunnyvale CA, US
Jason D. Mudge - San Francisco CA, US
Andrew J. Sutton - Sunnyvale CA, US

International Classification:

G01S 17/89
G01S 7/481
G01B 11/02
G02F 1/29

Abstract:

An electro-optical device includes a laser, which is configured to emit toward a scene pulses of optical radiation. An array of detectors are configured to receive the optical radiation that is reflected from points in the scene and to output signals indicative of respective times of arrival of the received radiation. A controller is coupled to drive the laser to emit a sequence of pulses of the optical radiation toward each of a plurality of points in the scene and to find respective times of flight for the points responsively to the output signals, while controlling a power of the pulses emitted by the laser by counting a number of the detectors outputting the signals in response to each pulse, and reducing the power of a subsequent pulse in the sequence when the number is greater than a predefined threshold.

US Patent:

20180062345, Mar 1, 2018

Filed:

Aug 30, 2016

Appl. No.:

15/250962

Inventors:

- Cupertino CA, US
Andrew J. Sutton - Sunnyvale CA, US
Cristiano L. Niclass - San Jose CA, US
Mina A. Rezk - Haymarket VA, US

International Classification:

H01S 5/00
H01S 5/42
H01S 5/042
G02B 26/08
G02F 1/29
G01S 17/10
G01S 7/481

Abstract:

An optical apparatus includes an array of lasers, which are arranged in a grid pattern having a predefined spatial pitch and are configured to emit respective beams of pulses of optical radiation. Projection optics having a selected focal length project the beams toward a target with an angular pitch between the beams defined by the spatial pitch and the focal length. A scanner scans the projected beams over a range of scan angles that is less than twice the angular pitch. Control circuitry drives the lasers and the scanner so that the pulses cover the target with a resolution finer than the angular pitch. A receiver receives and measures a time of flight of the pulses reflected from the target.