Viorel C Negoita

US Patent:

8345724, Jan 1, 2013

Filed:

Oct 27, 2008

Appl. No.:

12/258653

Inventors:

Thilo Vethake - Cranbury NJ, US
Ulrich Bonna - Cranbury NJ, US
Viorel C. Negoita - Plainsboro NJ, US

Assignee:

Trumpf Photonics Inc. - Cranbury NJ

International Classification:

H01S 3/08

US Classification:

372 99, 359839

Abstract:

A laser system includes a first source and a second source for generating a first laser beam and a second laser beam, respectively, and a mirror arrangement including a first interleaving laser mirror with a high reflecting area configured to reflect the first laser beam and a first high transmitting area configured to transmit the second laser beam.

US Patent:

20100103973, Apr 29, 2010

Filed:

Oct 27, 2008

Appl. No.:

12/258622

Inventors:

Ulrich Bonna - Cranbury NJ, US
Martin Liermann - Villingen Schwenningen, DE
Viorel C. Negoita - Plainsboro NJ, US
Thilo Vethake - Cranbury NJ, US
Alexander Killi - Trossingen, DE
Christoph Tillkorn - Zimmern, DE

Assignee:

TRUMPF PHOTONICS, INC. - Cranbury NJ

International Classification:

H01S 5/40
H01S 5/026

US Classification:

372 5012, 372 5023

Abstract:

A laser system includes at least two sources configured to provide at least two spatially separated laser beams, and a mount configured to mount the at least two sources along an arc, the arc defining an angular coordinate and a radial coordinate, wherein an axial coordinate is orthogonal to the angular coordinate and the radial coordinate, and the spatially separated laser beams are separated in the axial coordinate. The mount is further configured to mount the at least two sources providing thereby an offset of the laser beams in the axial coordinate such that the laser beams interleave in the axial direction at a center region of the arc.

US Patent:

20220276342, Sep 1, 2022

Filed:

May 19, 2022

Appl. No.:

17/664178

Inventors:

- Pittsburgh PA, US
Christopher John Trowbridge - Dexter MI, US
Viorel C. Negoita - Plainsboro NJ, US

International Classification:

G01S 7/481
G01S 7/48
G01S 7/499
G01S 17/06
G02B 27/10

Abstract:

A light detection and ranging (LiDAR) system includes light emitters that emit beams of light of substantially equal intensities. The light emitters form a beam polarization pattern with beams having varying polarizations. The LiDAR system also will include a receiver to receive light reflected from the object. An analyzer will determine characteristic differences between the beam polarization pattern of the beams emitted toward the object and an intensity pattern of the light reflected from the object, determine a reflection position that is associated with the light reflected from the object, and use the determined characteristic differences to determine whether the reflection position is a position of the object or a position of a ghost.

US Patent:

20210011162, Jan 14, 2021

Filed:

Jul 11, 2019

Appl. No.:

16/508465

Inventors:

- Pittsburgh PA, US
Christopher John Trowbridge - Dexter MI, US
Viorel C. Negoita - Plainsboro NJ, US

International Classification:

G01S 17/89
G01S 17/10
G01S 17/42
G01S 17/95
G02B 27/28
G01S 7/481

Abstract:

A light detection and ranging (LiDAR) system includes a light emitter and a light detector comprising a photodetector. The light detector is configured to receive and detect one or more characteristics of light emitted by the light emitter. The system also includes a polarization filter that is configured to limit polarization of light that is received by the light detector to a single polarization, and thus filter noise and/or certain retroreflected light from reaching the light detector.