WO2007131087A3 - Efficiently focusing light - Google Patents

Efficiently focusing light Download PDF

Info

Publication number
WO2007131087A3
WO2007131087A3 PCT/US2007/068104 US2007068104W WO2007131087A3 WO 2007131087 A3 WO2007131087 A3 WO 2007131087A3 US 2007068104 W US2007068104 W US 2007068104W WO 2007131087 A3 WO2007131087 A3 WO 2007131087A3
Authority
WO
WIPO (PCT)
Prior art keywords
focusing light
light
array
efficiently focusing
light source
Prior art date
Application number
PCT/US2007/068104
Other languages
French (fr)
Other versions
WO2007131087A2 (en
Inventor
Arkady Pittel
Andrew M Goldman
Stanislav V Elektrov
Sergey Liberman
Original Assignee
Candledragon Inc
Arkady Pittel
Andrew M Goldman
Stanislav V Elektrov
Sergey Liberman
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Candledragon Inc, Arkady Pittel, Andrew M Goldman, Stanislav V Elektrov, Sergey Liberman filed Critical Candledragon Inc
Priority to EP07761792A priority Critical patent/EP2013692A2/en
Publication of WO2007131087A2 publication Critical patent/WO2007131087A2/en
Publication of WO2007131087A3 publication Critical patent/WO2007131087A3/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
    • G06F3/0428—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by sensing at the edges of the touch surface the interruption of optical paths, e.g. an illumination plane, parallel to the touch surface which may be virtual
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/04—Automatically aligning, aiming or focusing the laser beam, e.g. using the back-scattered light
    • B23K26/042—Automatically aligning the laser beam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/70—Auxiliary operations or equipment
    • B23K26/702—Auxiliary equipment
    • B23K26/705—Beam measuring device

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

An array of sensitive pixel elements is configured to generate signals representative of sensed light that is associated with writing being done by a user, and an optical system concentrates light from a light source across a section of the array of sensitive pixel elements, the signals being useful to compute a subpixel measurement of a position of the light source.
PCT/US2007/068104 2006-05-04 2007-05-03 Efficiently focusing light WO2007131087A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07761792A EP2013692A2 (en) 2006-05-04 2007-05-03 Efficiently focusing light

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/418,987 US7755026B2 (en) 2006-05-04 2006-05-04 Generating signals representative of sensed light that is associated with writing being done by a user
US11/418,987 2006-05-04

Publications (2)

Publication Number Publication Date
WO2007131087A2 WO2007131087A2 (en) 2007-11-15
WO2007131087A3 true WO2007131087A3 (en) 2008-11-27

Family

ID=38668544

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/068104 WO2007131087A2 (en) 2006-05-04 2007-05-03 Efficiently focusing light

Country Status (3)

Country Link
US (1) US7755026B2 (en)
EP (1) EP2013692A2 (en)
WO (1) WO2007131087A2 (en)

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US7268774B2 (en) * 1998-08-18 2007-09-11 Candledragon, Inc. Tracking motion of a writing instrument
US20080018591A1 (en) * 2006-07-20 2008-01-24 Arkady Pittel User Interfacing
US8131502B2 (en) * 2008-10-10 2012-03-06 Pixart Imaging Inc. Sensing system and method for obtaining location of pointer thereof
US8135561B2 (en) * 2008-10-10 2012-03-13 Pixart Imaging Inc. Sensing system
US8232511B2 (en) * 2008-10-10 2012-07-31 Pixart Imaging Inc. Sensing system adapted to sense a pointer and calculate a location of the pointer
US8305363B2 (en) * 2008-10-10 2012-11-06 Pixart Imaging Sensing system and locating method thereof
US8446389B2 (en) * 2008-10-15 2013-05-21 Lenovo (Singapore) Pte. Ltd Techniques for creating a virtual touchscreen
US8525776B2 (en) * 2008-10-27 2013-09-03 Lenovo (Singapore) Pte. Ltd Techniques for controlling operation of a device with a virtual touchscreen
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US10180746B1 (en) 2009-02-26 2019-01-15 Amazon Technologies, Inc. Hardware enabled interpolating sensor and display
US9244562B1 (en) 2009-07-31 2016-01-26 Amazon Technologies, Inc. Gestures and touches on force-sensitive input devices
US9110495B2 (en) * 2010-02-03 2015-08-18 Microsoft Technology Licensing, Llc Combined surface user interface
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US9612265B1 (en) 2011-09-23 2017-04-04 Cypress Semiconductor Corporation Methods and apparatus to detect a conductive object
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US20030095708A1 (en) * 2001-11-21 2003-05-22 Arkady Pittel Capturing hand motion
US20050073508A1 (en) * 1998-08-18 2005-04-07 Digital Ink, Inc., A Massachusetts Corporation Tracking motion of a writing instrument

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Patent Citations (3)

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Also Published As

Publication number Publication date
WO2007131087A2 (en) 2007-11-15
US7755026B2 (en) 2010-07-13
EP2013692A2 (en) 2009-01-14
US20070262246A1 (en) 2007-11-15

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