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1. WO2006116330 - MONITORING SCAN MIRROR MOTION IN ELECTRO-OPTICAL READERS AND IMAGE PROJECTORS

Publication Number WO/2006/116330
Publication Date 02.11.2006
International Application No. PCT/US2006/015506
International Filing Date 20.04.2006
IPC
G03B 29/00 2006.1
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
29Combinations of cameras, projectors or photographic printing apparatus with non-photographic non-optical apparatus, e.g. clocks or weapons; Cameras having the shape of other objects
G03B 21/00 2006.1
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
21Projectors or projection-type viewers; Accessories therefor
G03B 21/26 2006.1
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
21Projectors or projection-type viewers; Accessories therefor
14Details
26Projecting separately subsidiary matter simultaneously with main image
G03B 13/00 2006.1
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
13Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
G02B 26/08 2006.1
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
26Optical devices or arrangements using movable or deformable optical elements for controlling the intensity, colour, phase, polarisation or direction of light, e.g. switching, gating or modulating
08for controlling the direction of light
G02B 5/08 2006.1
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
08Mirrors
CPC
G03B 21/14
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
21Projectors or projection-type viewers; Accessories therefor
14Details
Applicants
  • SYMBOL TECHNOLOGIES, INC. [US]/[US] (AllExceptUS)
Inventors
  • WOOD, Frederick, F.
Agents
  • ISRAEL, Alan
Priority Data
11/116,64228.04.2005US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) MONITORING SCAN MIRROR MOTION IN ELECTRO-OPTICAL READERS AND IMAGE PROJECTORS
(FR) PROCEDE POUR CONTROLER UN MOUVEMENT DE MIROIR DE BALAYAGE DANS DES LECTEURS ELECTRO-OPTIQUES ET PROJECTEURS D'IMAGES
Abstract
(EN) Crosstalk between a drive coil (72, 240) and a primary feedback coil (210) is eliminated by positioning a secondary feedback coil (212) in proximity with the drive coil for contamination by the crosstalk to the same extent as the primary feedback coil (210), and by processing feedback signals generated by the feedback coils to cancel the crosstalk. The drive coil (72, 240) is used to oscillate a scan mirror (64) employed in an image projection arrangement (20) or an electro-optical reader (220).
(FR) La présente invention concerne un procédé pour éliminer une diaphonie entre une bobine d'excitation et une bobine de rétroaction primaire. Ce procédé consiste à placer une bobine de rétroaction secondaire à proximité de la bobine d'excitation afin de la contaminer avec la diaphonie dans la même mesure que la bobine de rétroaction primaire, puis à traiter des signaux de rétroaction produits par les bobines de rétroaction, afin d'annuler la diaphonie. La bobine d'excitation est utilisée pour faire osciller un miroir de balayage employé dans un système de projection d'images ou dans un lecteur électro-optique.
Related patent documents
EP6758555This application is not viewable in PATENTSCOPE because the national phase entry has not been published yet or the national entry is issued from a country that does not share data with WIPO or there is a formatting issue or an unavailability of the application.
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