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1. WO2006099924 - OPTICAL OBJECTIVE MODULE

Publication Number WO/2006/099924
Publication Date 28.09.2006
International Application No. PCT/EP2006/001474
International Filing Date 17.02.2006
IPC
G02B 7/10 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
7Mountings, adjusting means, or light-tight connections, for optical elements
02for lenses
04with mechanism for focusing or varying magnification
10by relative axial movement of several lenses, e.g. of varifocal objective lens
H01L 41/09 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
41Piezo-electric devices in general; Electrostrictive devices in general; Magnetostrictive devices in general; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
08Piezo-electric or electrostrictive elements
09with electrical input and mechanical output
CPC
G02B 7/023
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
7Mountings, adjusting means, or light-tight connections, for optical elements
02for lenses
023permitting adjustment
G02B 7/08
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
7Mountings, adjusting means, or light-tight connections, for optical elements
02for lenses
04with mechanism for focusing or varying magnification
08adapted to co-operate with a remote control mechanism
G02B 7/102
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
7Mountings, adjusting means, or light-tight connections, for optical elements
02for lenses
04with mechanism for focusing or varying magnification
10by relative axial movement of several lenses, e.g. of varifocal objective lens
102controlled by a microcomputer
H02N 2/002
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
NELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
2Electric machines in general using piezo-electric effect, electrostriction or magnetostriction
0005producing non-specific motion; Details common to machines covered by H02N2/02 - H02N2/16
001Driving devices, e.g. vibrators
002using only longitudinal or radial modes
H02N 2/008
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
NELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
2Electric machines in general using piezo-electric effect, electrostriction or magnetostriction
0005producing non-specific motion; Details common to machines covered by H02N2/02 - H02N2/16
0075Electrical details, e.g. drive or control circuits or methods
008Means for controlling vibration frequency or phase, e.g. for resonance tracking
H02N 2/026
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
NELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
2Electric machines in general using piezo-electric effect, electrostriction or magnetostriction
02producing linear motion, e.g. actuators; Linear positioners ; ; Linear motors
026by pressing one or more vibrators against the driven body
Applicants
  • PHYSIK INSTRUMENTE (PI) GMBH & CO. KG [DE]/[DE] (AllExceptUS)
  • WISCHNEWSKIJ, Wladimir [DE]/[DE] (UsOnly)
  • WISCHNEWSKIJ, Alexej [UA]/[DE] (UsOnly)
Inventors
  • WISCHNEWSKIJ, Wladimir
  • WISCHNEWSKIJ, Alexej
Agents
  • KRUSPIG, Volkmar
Priority Data
10 2005 039 357.819.08.2005DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) OPTISCHE OBJEKTIVBAUGRUPPE
(EN) OPTICAL OBJECTIVE MODULE
(FR) ENSEMBLE OBJECTIF OPTIQUE
Abstract
(DE)
Die Erfindung betrifft eine Objektivbaugruppe mit einer optischen Zoom-Linsengruppe (2) sowie mit einer fokussierenden optischen Linsengruppe (4) , deren zusammengesetzte optische Achsen die optische Achse (7) des Objektivs bilden, und mit einem elektrischen Antrieb für beide Linsengruppen. Erfindungsgemäß ist der elektrische Antrieb der genannten Linsengruppen in Form zweier linearer Ultraschallmotoren (9, 11) ausgeführt, wobei jeder der beiden Ultraschallmotoren aus einer piezoelektrischen Platte (12) mit zwei an die gegenüberliegenden Stirnseiten angepressten Friktionselementen (14) besteht, welche zusammen mit den Anpresselementen (15) die beweglichen Elemente der Ultraschallmotoren bilden, wobei jedes der beweglichen Elementen elastisch mit der entsprechenden Linsengruppe verbunden ist, wobei die Ultraschallmotoren so angeordnet sind, dass die Bewegungsrichtung der beweglichen Elemente parallel zur optischen Achse des optischen Moduls verläuft.
(EN)
The invention relates to an objective module comprising an optical zoom lens group (2) and a focussing optical lens group (4), the combined optical axes forming the optical axis (7) of the objective, and an electrical drive for the two lens groups. According to the invention, the electrical drive of the cited lens groups is embodied in the form of two linear ultrasonic motors (9, 11), each of the two ultrasonic motors consisting of a piezoelectric plate (12) comprising two friction elements (14) which are pressed against the opposing front sides and form the mobile elements of the ultrasonic motors together with the pressure elements (15). Each of the mobile elements is elastically connected to the corresponding lens group. The ultrasonic motors are arranged in such a way that the direction of displacement of the mobile elements is parallel to the optical axis of the optical module.
(FR)
L'invention concerne un ensemble objectif optique comportant un ensemble lentille optique à focale variable (2) et un ensemble lentille optique de mise au point (4), dont les axes optiques combinés forment l'axe optique (7) de l'objectif, et un organe d'entraînement électrique pour les deux ensembles lentilles. Selon l'invention, ledit organe d'entraînement électrique se présente sous la forme de deux moteurs à ultrasons linéaires (9, 11). Chacun de ces moteurs est constitué d'une plaque piézo-électrique (12) comportant deux éléments de friction (14) qui sont plaqués contre les faces opposées et qui forment avec les éléments d'appui (15) les éléments mobiles des moteurs à ultrasons. Chacun des éléments mobiles est raccordé élastiquement à l'ensemble lentille correspondant. Les moteurs à ultrasons sont placés de sorte que le sens de déplacement des éléments mobiles soit parallèle à l'axe optique du module optique.
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