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Mark A Handschy

from Boulder, CO
Age ~69
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Also known as:
Mark Alan Handschy
Phone and address:
6734 Lakeview Dr, Boulder, CO 80303
(303) 442-5879
Related to:
John R Handschy, 98Terri H Vernon, 68Shelley A Palumbo, 65Leland H Vernon, 99Rosemary Handschy, 34Daniel J Handschy, 66Pauline R Handschy, 94Twila F Vernon, 98Rosemary Handschy
Connected to:
Christopher Handschuch, 67Christy A Handschke, 79Craig M Handschuch, 67Deborah G Handschin, 74Hollie E Handschumacher, 98Joseph A Handschiegel, 40Kyle Handschin, 36Lera J Handschumacher, 95Norman L Handschin, 96Sue A Handschuch, 66

Mark Handschy Phones & Addresses

  • 6734 Lakeview Dr, Boulder, CO 80303 (303) 442-5879
  • 3230 11Th St, Boulder, CO 80304 (303) 442-5879
  • Arvada, CO
  • Longmont, CO

Industries

Renewables & Environment

Resumes

Resumes

Mark Handschy Photo 1

Partner At Enduring Energy, Llc

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Location:
Greater Denver Area
Industry:
Renewables & Environment

Business Records

Name / Title
Company / Classification
Phones & Addresses
Mark A. Handschy
Partner, Principal
Enduring Energy LLC
Management Consulting Services · Nonclassifiable Establishments
5589 Arapahoe Ave, Boulder, CO 80303
6734 Lakeview Dr, Boulder, CO 80303
Mark A. Handschy
Chief Technology Officer, Vice-President, Chief Scientist, Vp And Cto, VP Research & Technology, CTO, Vice President
Displaytech, Inc
Commercial Physical Research Mfg Electronic Components Mfg Optical Instruments/Lenses · Electronic Components, NEC · Semiconductors and Related Devices · Research & Development in Biotechnology · Electronic Research & Developm
2602 Clover Basin Dr, Longmont, CO 80503
PO Box 70019, Boise, ID 83707
(303) 772-2191, (303) 772-2193

Publications

Us Patents

Optics Arrangements Including Light Source Arrangements For An Active Matrix Liquid Crystal Image Generator

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US Patent:
6359723, Mar 19, 2002
Filed:
Dec 13, 2000
Appl. No.:
09/735109
Inventors:
Mark A. Handschy - Boulder CO
Michael R. Meadows - Nederland CO
Holden Chase - Lafayette CO
Assignee:
Displaytech, Inc. - Longmont CO
International Classification:
G02B 2600
US Classification:
359290, 359629, 359631, 359277
Abstract:
A system for producing modulated light is disclosed. The system comprises a spatial light modulator including a light modulating medium switchable between different states so as to act on light in ways which form overall patterns of modulated light. The system also includes an arrangement for switching the modulating medium between the different states in a controlled way and an illumination arrangement for producing a source of light. The system further includes an optics arrangement for directing light from the source of light into the spatial light modulator and for directing light from the spatial light modulator through a predetermined source imaging area. The optics arrangement cooperates with the illumination arrangement and the spatial light modulator so as to produce a real image of the source of light within the source imaging area such that an individual is able to view a virtual image of the overall patterns of modulated light from the source imaging area. A variety of novel optics arrangements are disclosed including specific combinations of different light sources, diffusing plates, polarizers, beam splitters, analyzers, lenses, mirrors, and holographic optical elements which allow the overall optical arrangement to be miniaturized to the same degree and in coordination with the spatial light modulator. The different light sources include using a plurality of light sources, such as LEDs, to form an array of light sources, each of the light sources providing light to a corresponding portion of the spatial light modulator.

Dc-Balanced And Non-Dc-Balanced Drive Schemes For Liquid Crystal Devices

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US Patent:
6507330, Jan 14, 2003
Filed:
Mar 14, 2001
Appl. No.:
09/809741
Inventors:
Mark A. Handschy - Boulder CO
Jiuzhi Xue - Broomfield CO
Lianhua Ji - Boulder CO
Assignee:
Displaytech, Inc. - Longmont CO
International Classification:
G09G 336
US Classification:
345 94, 349 25
Abstract:
A method of operating a liquid crystal cell includes DC-balancing by displaying an inverse image with electric fields of increased magnitude relative to the image producing electric fields. While the inverse image is displayed the image is prevented from being visible by either turning off the light source or re-directing or blocking the light from reaching the viewing area. The image producing electric fields and the inverse image producing electric fields are such that the cumulative time integral of the electric fields that are present in one direction across the liquid crystal material is substantially equal to the cumulative time integral of the electric fields that are present in the opposite direction during the given period of time during the operation of liquid crystal cell. The time duration of the inverse image portion is shorter than the time duration of the image portion by an amount proportional to the increased magnitude of the additional electric fields. Because of the shorter time period when no image is visible, the system brightness is increased.

Active Matrix Liquid Crystal Image Generator

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US Patent:
6570550, May 27, 2003
Filed:
Mar 20, 1998
Appl. No.:
09/045247
Inventors:
Mark A. Handschy - Boulder CO
Michael R. Meadows - Nederland CO
Assignee:
Displaytech, Inc. - Longmont CO
International Classification:
G09G 336
US Classification:
345 89, 345 97, 345 98
Abstract:
A system for producing spatially modulated monochrome or color light having gray scale includes an active matrix liquid crystal spatial light modulator having light modulating means including (i) a layer of ferroelectric liquid crystal material which is designed to switch between ON and OFF states and (ii) active matrix means including VLSI circuitry for dividing the layer of liquid crystal material into an array of individual liquid crystal pixels and for causing each of the pixels of liquid crystal material to modulate light individually by switching between the ON and OFF states in a way that depends upon the data which the VLSI circuitry is written. The system also includes illumination means having a light source for directing light from the source into the pixel-divided layer of ferroelectric liquid crystal material in a specific way. And finally, the system includes means for writing the VLSI circuitry with preselected data in accordance with a particular data ordering scheme such that the circuitry, in response to the written data, causes the pixels of liquid crystal material to individually switch between their ON and OFF states and therefore modulate light from the source in a way which, depending upon the data, produces a specific overall pattern of gray scale light.

Rgb Illuminator With Calibration Via Single Detector Servo

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US Patent:
6633301, Oct 14, 2003
Filed:
May 17, 1999
Appl. No.:
09/313227
Inventors:
James M. Dallas - Superior CO
Ryan Patrick Donohue - Mountain View CA
Mark A. Handschy - Boulder CO
Gani Jusuf - San Carlos CA
Colm Lysaght - Palo Alto CA
Rainer Malzbender - Niwot CO
Assignee:
Displaytech, Inc. - Longmont CO
International Classification:
G09G 502
US Classification:
345597, 345 84
Abstract:
A display system includes a light modulator divided into an array of individually controllable pixels and an input-driven illumination device. The illumination device is adapted to receive a variable input and is configured to direct light of variable intensity onto the modulator, depending on the input. The display system further includes a calibrating arrangement for establishing the input to the illumination device to produce a desired intensity level of light. The calibrating arrangement includes a light sensing mechanism, which senses the light from the illumination device while the illumination device is driven by an initial input. The calibration arrangement is configured to determine a comparison between the sensed light and a value representative of the desired-intensity level. The calibration arrangement further includes a control arrangement responsive to the comparison for varying the input so as to provide light of the desired intensity level.

Optics Arrangements Including Light Source Arrangements For An Active Matrix Liquid Crystal Image Generator

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US Patent:
7012730, Mar 14, 2006
Filed:
Feb 4, 2002
Appl. No.:
10/067516
Inventors:
Mark A. Handschy - Boulder CO, US
Michael R. Meadows - Nederland CO, US
Holden Chase - Lafayette CO, US
Assignee:
Displaytech, Inc. - Longmont CO
International Classification:
G02B 26/60
G02F 1/1333
G03B 21/28
US Classification:
359290, 359291, 349 58, 345 8, 353 98, 353 37
Abstract:
A system for producing modulated light is disclosed. The system comprises a spatial light modulator including a light modulating medium switchable between different states so as to act on light in ways which form overall patterns of modulated light. The system also includes an arrangement for switching the modulating medium between the different states in a controlled way and an illumination arrangement for producing a source of light. The system further includes an optics arrangement for directing light from the source of light into the spatial light modulator and for directing light from the spatial light modulator through a predetermined source imaging area. The optics arrangement cooperates with the illumination arrangement and the spatial light modulator so as to produce a real image of the source of light within the source imaging area such that an individual is able to view a virtual image of the overall patterns of modulated light from the source imaging area. A variety of novel optics arrangements are disclosed including specific combinations of different light sources, diffusing plates, polarizers, beam splitters, analyzers, lenses, mirrors, and holographic optical elements which allow the overall optical arrangement to be miniaturized to the same degree and in coordination with the spatial light modulator. The different light sources include using a plurality of light sources, such as LEDs, to form an array of light sources, each of the light sources providing light to a corresponding portion of the spatial light modulator.

Active Matrix Liquid Crystal Image Generator

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US Patent:
7170483, Jan 30, 2007
Filed:
May 12, 2003
Appl. No.:
10/437131
Inventors:
Mark A. Handschy - Boulder CO, US
Michael R. Meadows - Nederland CO, US
Assignee:
Displaytech, Inc. - Longmont CO
International Classification:
G09G 3/36
US Classification:
345 89, 345 97, 345690
Abstract:
A system for producing spatially modulated monochrome or color light having gray scale includes an active matrix liquid crystal spatial light modulator having light modulating means including (i) a layer of ferroelectric liquid crystal material which is designed to switch between ON and OFF states and (ii) active matrix means including VLSI circuitry for dividing the layer of liquid crystal material into an array of individual liquid crystal pixels and for causing each of the pixels of liquid crystal material to modulate light individually by switching between the ON and OFF states in a way that depends upon the data which the VLSI circuitry is written. The system also includes illumination means having a light source for directing light from the source into the pixel-divided layer of ferroelectric liquid crystal material in a specific way. And finally, the system includes means for writing the VLSI circuitry with preselected data in accordance with a particular data ordering scheme such that the circuitry, in response to the written data, causes the pixels of liquid crystal material to individually switch between their ON and OFF states and therefore modulate light from the source in a way which, depending upon the data, produces a specific overall pattern of gray scale light.

Compact Electronic Viewfinder

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US Patent:
7206134, Apr 17, 2007
Filed:
Feb 3, 2005
Appl. No.:
11/051966
Inventors:
Paul Weissman - Brewster NY, US
Mark A. Handschy - Boulder CO, US
Assignee:
Displaytech, Inc. - Longmont CO
International Classification:
G02B 27/14
G09G 5/00
US Classification:
359630, 359638, 345 8
Abstract:
An electronic viewfinder with a reflective microdisplay and associated optical elements in a design that utilizes one or more folded optical paths to achieve a compact size and volume that may have a dimension of less than 10 millimeters per side. Moreover, the optical design may have an effective focal length that is greater than the spacing of the optical elements from the microdisplay. Various embodiments include a pancake window arrangement with reflective surfaces that are spaced apart from each other and cube beamsplitter eyepieces with folded paths.

Phase Masks For Use In Holographic Data Storage

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US Patent:
7656768, Feb 2, 2010
Filed:
Jan 27, 2005
Appl. No.:
11/046197
Inventors:
Mark A. Handschy - Boulder CO, US
Michael J. O'Callaghan - Louisville CO, US
Christopher M. Walker - Boulder CO, US
Assignee:
Micron Technology, Inc. - Boise ID
International Classification:
G11B 7/00
US Classification:
36911202, 369103
Abstract:
A spatial light modulator (SLM) having a phase mask that is provided as an internal component thereof. The phase mask can be provided as a multilevel surface of relatively higher index of refraction material on an inner surface of a transmissive cover window or as a separate transmissive window between the cover window and the pixels of the SLM. If the phase mask is to be used with a liquid crystal SLM, then it may be desirable to planarize the surface of the cover window contacting the liquid crystal by providing a layer of relatively lower index of refraction material adjacent the multilevel surface. The phase mask can also be provided on the transmissive cover window by patterned ion deposition, exposing patterned light to a photopolymeric material, or in some other suitable fashion. Arranging for the pixel electrodes to be at one of multiple levels rather than lying in an exactly planar relationship can also effectively create the phase mask.
Control profile
Mark A Handschy from Boulder, CO, age ~69 Get Report