Andrei S Kazmierski

US Patent:

20130146932, Jun 13, 2013

Filed:

Jun 28, 2012

Appl. No.:

13/536276

Inventors:

Michael Lim - Lexington MA, US
Michael Gregory Brown - Tyngsboro MA, US
Scott W. Duncan - Andover MA, US
Andrei Kazmierski - Acton MA, US

Assignee:

Luminus Devices, Inc. - Billerica MA

International Classification:

H01L 33/38

US Classification:

257 99

Abstract:

The present invention relates to light-emitting diodes (LEDs), and related components, processes, systems, and methods. In certain embodiments, an LED that provides improved optical and thermal efficiency when used in optical systems with a non-rectangular input aperture (e.g., a circular aperture) is described. In some embodiments, the emission surface of the LED and/or an emitter output aperture can be shaped (e.g., in a non-rectangular shape) such that enhanced optical and thermal efficiencies are achieved. In addition, in some embodiments, chip designs and processes that may be employed in order to produce such devices are described.

US Patent:

62012460, Mar 13, 2001

Filed:

Jul 31, 1998

Appl. No.:

9/127591

Inventors:

Franc Potekev - Wilsonville OR
Andrei Kazmierski - Tualatin OR

Assignee:

InFocus Corporation - Wilsonville OR

International Classification:

G02B 1700

US Classification:

250353

Abstract:

A non-imaging optical concentrator (18, 70) includes an optically transparent body having a substantially dome-shaped convex surface (42, 74) of revolution formed about an optical axis (24) and at least one conical concave surface of revolution (44, 76, 78) protruding into the convex surface in a direction along the optical axis toward a light sensor (46). The convex surface receives light rays (54, 90) propagating from low to medium elevational angles and causes them to propagate through the optically transparent body, reflect off the concave surface, and propagate generally along the optical axis toward the light sensor. The concave surface further receives light rays (58) propagating from high elevational angles and refracts them through the optically transparent body toward the light sensor. This invention is advantageous because only one light sensor is required to receive light rays, such as IR controller data, propagating from a wide range of elevational and azimuthal angles.

US Patent:

20220206234, Jun 30, 2022

Filed:

Mar 17, 2022

Appl. No.:

17/697581

Inventors:

- Mountain View CA, US
Andrei Kazmierski - Pleasanton CA, US
Paul Epp - Sunnyvale CA, US

International Classification:

G02B 6/42

Abstract:

A method of calibrating a collimating lens system includes transmitting, using an optical transmitter, a beam out of an optical fiber and through a collimating lens of the collimating lens system. The beam is reflected off a perfect flat mirror positioned at an output of the collimating lens and back towards the collimating lens, and received, via the collimating lens, at a power meter connected to the optical fiber. The method also includes adjusting a position of a tip of the optical fiber proximal to the collimating lens while tracking a power reading using the power meter, selecting a calibration position of the optical fiber corresponding to a highest power reading, and securing the optical fiber relative to the collimating lens using the calibration position.

US Patent:

20210242940, Aug 5, 2021

Filed:

Apr 21, 2021

Appl. No.:

17/236410

Inventors:

- Mountain View CA, US
Baris Erkmen - Sunnyvale CA, US
Andrei Kazmierski - Pleasanton CA, US
Devin Brinkley - Redwood City CA, US
John Moody - Belmont CA, US
Markus Demartini - Alameda CA, US
Wei-cheng Lai - Sunnyvale CA, US
Halleh Balch - Oakland CA, US

International Classification:

H04B 10/112
H04B 10/67

Abstract:

Aspects of the disclosure provide an optical communication system. The system may include a receiver lens system configured to receive a light beam from a remote optical communication system and direct the light beam to a photodetector. The system may also include the photodetector. The photodetector may be configured to convert the received light beam into an electrical signal, and the photodetector may be positioned at a focal plane of the receiver lens system. The system may also include a phase-aberrating element arranged with respect to the receiver lens system and the photodetector such that the phase-aberrating element is configured to provide uniform angular irradiance at the focal plane of the receiver lens system.

US Patent:

20210159978, May 27, 2021

Filed:

Nov 27, 2019

Appl. No.:

16/697541

Inventors:

- Mountain View CA, US
Baris Erkmen - Sunnyvale CA, US
Andrei Kazmierski - Pleasanton CA, US
Devin Brinkley - Redwood City CA, US
John Moody - Belmont CA, US
Markus Demartini - Alameda CA, US
Wei-cheng Lai - Sunnyvale CA, US
Halleh Balch - Oakland CA, US

International Classification:

H04B 10/112
H04B 10/67

Abstract:

Aspects of the disclosure provide an optical communication system. The system may include a receiver lens system configured to receive a light beam from a remote optical communication system and direct the light beam to a photodetector. The system may also include the photodetector. The photodetector may be configured to convert the received light beam into an electrical signal, and the photodetector may be positioned at a focal plane of the receiver lens system. The system may also include a phase-aberrating element arranged with respect to the receiver lens system and the photodetector such that the phase-aberrating element is configured to provide uniform angular irradiance at the focal plane of the receiver lens system.

US Patent:

20200228202, Jul 16, 2020

Filed:

Jun 10, 2019

Appl. No.:

16/436278

Inventors:

- Mountain View CA, US
Andrei Kazmierski - Pleasanton CA, US
Devin Brinkley - Redwood City CA, US

International Classification:

H04B 10/116
G02B 27/00
G02B 13/14
G02B 5/20
H04B 10/40

Abstract:

The disclosure provides for a free-space optical communication system that includes a first lens group, a field corrector lens, and a second lens group. The first lens group is configured to receive light received from a remote free-space optical transmitter. The first lens group has a first focal plane. The field corrector lens is positioned between the first lens group and the first focal plane of the first lens group and positioned closer to the first focal plane than the first lens group. The first lens group also is made of material having an index of refraction of at least 2.0, and has a second focal plane. The second lens group is positioned at the second focal plane of the field corrector lens and is configured to couple light to a sensor.

US Patent:

20170255011, Sep 7, 2017

Filed:

Mar 3, 2016

Appl. No.:

15/059873

Inventors:

- Mountain View CA, US
Simon R. Prakash - Los Gatos CA, US
James C. Dunphy - San Jose CA, US
Caner Onal - Palo Alto CA, US
Oscar A. Martinez - Mountain View CA, US
Philipp H. Schmaelzle - Mountain View CA, US
Andrei S. Kazmierski - Pleasanton CA, US
Ozan Cakmakci - Sunnyvale CA, US

International Classification:

G02B 27/01
G09G 3/32
G06F 3/14
G02B 5/30

Abstract:

A display apparatus includes a transparent substrate having first and second sides, an array of LED micro-display panels, and an array of collimating reflectors. The LED micro-display panels are disposed within the transparent substrate between the first and second sides and oriented to emit sub-image portions of a display image towards the first side. The collimating reflectors are disposed within the transparent substrate between the first side and the array of LED micro-display panels. The collimating reflectors are aligned with the LED micro-display panels to reflect the sub-image portions back out the second side of the transparent substrate. The LED micro-display panels are offset from the collimating reflectors to expand the sub-image portions prior to reflection by the collimating reflectors.

US Patent:

20170045769, Feb 16, 2017

Filed:

Aug 14, 2015

Appl. No.:

14/826743

Inventors:

- Mountain View CA, US
Pey Lung Fu - Taipei City, TW
Hung-Yu Chen - Zhubei, TW
Carlin Vieri - Menlo Park CA, US
Adam E. Norton - Palo Alto CA, US
Andrei S. Kazmierski - Pleasanton CA, US
Serge J. A. Bierhuizen - San Jose CA, US
Nicholas C. Loomis - Oakland CA, US
Behnam Bastani - San Jose CA, US
Yachi Lee - Sunnyvale CA, US

International Classification:

G02F 1/1333
G02F 1/1335
G02F 1/1343

Abstract:

A display panel includes an array of display pixels to output an image. The array of display pixels includes a central pixel region and a perimeter pixel region. The central pixel region includes central pixel units each having three different colored sub-pixels. The different colored sub-pixels of the central pixel units are organized according to a central layout pattern that repeats across the central pixel region. The perimeter pixel region is disposed along a perimeter of the central pixel region and includes perimeter pixel units that increase a brightness of the image along edges of the central pixel region to mask gaps around the array of display pixels when tiling the array of display pixels with other arrays of display pixels.