Prakash S Kasturi

US Patent:

8072587, Dec 6, 2011

Filed:

Jan 8, 2007

Appl. No.:

11/621036

Inventors:

Prakash Kasturi - Rancho Santa Margarita CA, US
Adrian Nastase - Huntington Beach CA, US

Assignee:

Newport Corporation - Irvine CA

International Classification:

G01J 1/00

US Classification:

356121

Abstract:

A machine and methods measure a characteristic of an optical signal incident upon a detector characterized by one or more dynamic response parameters. One method receives an output signal from the detector and compares that output signal and a computationally determined response of the detector to a known optical signal incident upon the detector. The response is based on said one or more dynamic parameters. The method determines the characteristic based on a relationship between the output signal and the computationally determined response. Another method observes an output signal from an optical detector detecting one or more optical signals, accesses a characteristic curve of detector response, compares the observed output signal to the characteristic curve, and calculates at least one characteristic of one or more optical signals based on a relationship of the observed output signal and the characteristic curve.

US Patent:

8231098, Jul 31, 2012

Filed:

Dec 2, 2005

Appl. No.:

11/293439

Inventors:

Vyacheslav M. Ryaboy - Irvine CA, US
Prakash S. Kasturi - Rancho Santa Margarita CA, US
Adrian S. Nastase - Huntington Beach CA, US

Assignee:

Newport Corporation - Irvine CA

International Classification:

F16M 13/00

US Classification:

248550, 248638, 188378

Abstract:

A vibration damper assembly that may be attached and moved about a payload or optical mount surface of an optical structure such as an optical table. The vibration damper assembly may include a sensor and an actuator that may be disposed within a housing. In some embodiments, the vibration damper assembly or components thereof may be incorporated into an optical structure in the form of an optical component to be disposed or mounted on an optical mount surface of an optical structure such as an optical table. Embodiments of the vibration damper system may include a controller in communication with the damper assembly Embodiments of the controller may use adaptive tuning, auto-ranging selection of gain factors and other features in order to optimize damping performance.

US Patent:

8400623, Mar 19, 2013

Filed:

Nov 11, 2011

Appl. No.:

13/294929

Inventors:

Prakash Kasturi - Rancho Santa Margarita CA, US
Adrian Nastase - Huntington Beach CA, US

Assignee:

Newport Corporation - Irvine CA

International Classification:

G01J 1/00

US Classification:

356121

Abstract:

Machines and methods measure an unknown characteristic of an optical signal incident upon a detector characterized by one or more dynamic response parameters. One method receives an output signal from the detector and compares that output signal and a computationally determined response of the detector to a known optical signal incident upon the detector. The response is based on said one or more dynamic parameters. The method determines the unknown characteristic based on the comparison of the output signal and the computationally determined response of the detector. Another method receives an output signal from an optical detector detecting one or more optical signals, accesses a predetermined characteristic curve of detector response, compares the output signal from the detector to the predetermined characteristic curve of detector response, and calculates at least one unknown characteristic of one or more optical signals based on results of the comparing step.

US Patent:

20030076059, Apr 24, 2003

Filed:

Mar 18, 2002

Appl. No.:

10/101675

Inventors:

Jesus DelValle - Irvine CA, US
Prakash Kasturi - Rancho Santa Margarita CA, US
Adrian Nastase - Huntington Beach CA, US

International Classification:

H02P001/18
H02P003/08
H02P005/06
H02P007/06
H02K023/00

US Classification:

318/254000

Abstract:

A motor control system that determines a number of commutation values during each control cycle of the system. Determining a plurality of commutation values provides a system with a higher frequency of commutation updates without having to increase the speed of the control cycle. This allows for a smoother operation of a motor without having to increase the speed of the control system processor.

US Patent:

20120277917, Nov 1, 2012

Filed:

Jun 28, 2012

Appl. No.:

13/535745

Inventors:

Vyacheslav M. RYABOY - Irvine CA, US
Prakash S. Kasturi - Rancho Santa Margarita CA, US
Adrian S. Nastase - Huntington Beach CA, US

Assignee:

NEWPORT CORPORATION - Irvine CA

International Classification:

G01M 1/38
G01G 3/16

US Classification:

700280, 73580

Abstract:

A vibration damper assembly that may be attached and moved about a payload or optical mount surface of an optical structure such as an optical table. The vibration damper assembly may include a sensor and an actuator that may be disposed within a housing. In some embodiments, the vibration damper assembly or components thereof may be incorporated into an optical structure in the form of an optical component to be disposed or mounted on an optical mount surface of an optical structure such as an optical table. Embodiments of the vibration damper system may include a controller in communication with the damper assembly Embodiments of the controller may use adaptive tuning, auto-ranging selection of gain factors and other features in order to optimize damping performance.

US Patent:

20170082532, Mar 23, 2017

Filed:

Dec 5, 2016

Appl. No.:

15/369772

Inventors:

- Irvine CA, US
Prakash S. KASTURI - Rancho Santa Margarita CA, US
Adrian S. NASTASE - Huntington Beach CA, US

Assignee:

NEWPORT CORPORATION - Irvine CA

International Classification:

G01N 21/01
G05B 19/042
F16F 15/00
G02B 7/02
F16F 15/02

Abstract:

A vibration damper assembly that may be attached and moved about a payload or optical mount surface of an optical structure such as an optical table. The vibration damper assembly may include a sensor and an actuator that may be disposed within a housing. In some embodiments, the vibration damper assembly or components thereof may be incorporated into an optical structure in the form of an optical component to be disposed or mounted on an optical mount surface of an optical structure such as an optical table. Embodiments of the vibration damper system may include a controller in communication with the damper assembly Embodiments of the controller may use adaptive tuning, auto-ranging selection of gain factors and other features in order to optimize damping performance.

US Patent:

20140121844, May 1, 2014

Filed:

Jan 3, 2014

Appl. No.:

14/147400

Inventors:

- Irvine CA, US
Prakash S. Kasturi - Rancho Santa Margarita CA, US
Adrian S. Nastase - Huntington Beach CA, US

Assignee:

Newport Corporation - Irvine CA

International Classification:

G01N 21/01

US Classification:

700280, 73580

Abstract:

A vibration damper assembly that may be attached and moved about a payload or optical mount surface of an optical structure such as an optical table. The vibration damper assembly may include a sensor and an actuator that may be disposed within a housing. In some embodiments, the vibration damper assembly or components thereof may be incorporated into an optical structure in the form of an optical component to be disposed or mounted on an optical mount surface of an optical structure such as an optical table. Embodiments of the vibration damper system may include a controller in communication with the damper assembly Embodiments of the controller may use adaptive tuning, auto-ranging selection of gain factors and other features in order to optimize damping performance.