EP2802922A1 - Dispositif binoculaire pour l'observation d'objets éloignés, comportant un système de stabilisation d'image - Google Patents

Dispositif binoculaire pour l'observation d'objets éloignés, comportant un système de stabilisation d'image

Info

Publication number
EP2802922A1
EP2802922A1 EP13700497.4A EP13700497A EP2802922A1 EP 2802922 A1 EP2802922 A1 EP 2802922A1 EP 13700497 A EP13700497 A EP 13700497A EP 2802922 A1 EP2802922 A1 EP 2802922A1
Authority
EP
European Patent Office
Prior art keywords
carrier
housing
optical element
stabilization system
deflection
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP13700497.4A
Other languages
German (de)
English (en)
Inventor
Dirk Dobermann
Rainer Robotta
Georg Guenther
Jens Hofmann
Kurt Becker
Tobias Thiele
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Carl Zeiss AG
Carl Zeiss Sports Optics GmbH
Original Assignee
Carl Zeiss AG
Carl Zeiss Sports Optics GmbH
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 Carl Zeiss AG, Carl Zeiss Sports Optics GmbH filed Critical Carl Zeiss AG
Publication of EP2802922A1 publication Critical patent/EP2802922A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/64—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
    • G02B27/646—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image compensating for small deviations, e.g. due to vibration or shake
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/16—Housings; Caps; Mountings; Supports, e.g. with counterweight
    • G02B23/18—Housings; Caps; Mountings; Supports, e.g. with counterweight for binocular arrangements

Definitions

  • US 4,235,506 discloses a binocular long-distance optical device with active image stabilization.
  • US 5,539,575 describes a binocular long-range optical device with image stabilization based on a respective active actuator-based stabilization system for the two optical channels.
  • this object is achieved with respect to the aforementioned binocular far-optical device in that the at least one first movable optical element and the at least one second movable optical element are movable relative to each other, and that the at least one stabilization system at least a first passive, on A mass inertia based stabilization system acting on the at least one first movable optical element of the first optical channel and having at least a second passive inertia based stabilization system acting on the at least one second movable optical element of the second optical channel, and the first Housing and the second housing are connected by a buckling bridge.
  • the movable optical elements of the first and the second optical channel are not rigidly coupled to each other, but relatively movable, and each of these movable optical elements of the first and second channel is each a separate stabilizing system for image stabilization assigned.
  • the two optical channels together with their housings are again physically separated from each other as in conventional long-optical devices without image stabilization and interconnected by a kink bridge, so that the user can adapt the binocular long-range optical device according to the invention to his eye distance, which is the Handling facilitated and acceptance increased.
  • the binocular far-optical device according to the invention has the advantage that it has a passive, inertia-based stabilization system for each optical channel, whereby, on the one hand, the inventive binocular far-optical Low-weight device and can be manufactured on the other at low cost.
  • the two stabilization systems can be made exclusively passive, but also hybrid stabilization systems for the two optical channels are possible within the scope of the invention, i. E. Stabilization systems that represent a combination of passive and active image stabilization.
  • the at least one first movable optical element is attached to a first carrier, which is movably mounted on the first housing relative thereto, and that at least one second movable optical element is attached to a second carrier, the the second housing is movably mounted relative to this, wherein the first carrier and the second carrier are movable relative to each other.
  • the at least two movable optical elements are each fixed to a separate carrier which is movably mounted in the respective housing of the respective optical channel, whereby the two optical channels as in conventional binocular far-optical devices, although identical, but independently are constructed.
  • the relative mobility or the lack of rigid coupling between the first carrier and the second carrier ensures that the first housing and the second housing remain movable relative to one another via the articulated bridge.
  • the at least one first stabilization system generates a restoring force proportional to the deflection and / or a restoring force proportional to the deflection speed of the first movable optical element
  • the at least one second stabilization system generates a restoring force proportional to the deflection and / or a return - Actuating force proportional to the deflection speed of the second movable optical element.
  • the two optical channels are each provided with a stabilization system that is completely passive and based on inertia.
  • a stabilization system that is completely passive and based on inertia.
  • the at least one first stabilizing system comprises a first gimbal spring joint for movably supporting the at least one first movable optical element in the first housing and the at least one second stabilizing system comprises a second gimbal spring joint for movably supporting the at least one second movable optical element in the second housing.
  • both movable optical elements are each gimbaled in the respective housing of the respective optical channel, preferably about two mutually perpendicular axes, in particular a horizontal axis transverse to the longitudinal direction and the vertical axis of the binocular far-optical device.
  • the respective separate storage of the respective at least one movable optical element of each optical channel via a spring joint has the advantage that, in contrast to sliding and roller bearings, a time-constant frictional force has, so that the restoring force of the spring joint remains constant under normal loads.
  • the gimbal spring joints generate the above-mentioned restoring forces proportional to the deflection, while the damping device generates the restoring forces proportional to the deflection speed of the respective movable optical element.
  • the first and the second damping device are designed as eddy current damper.
  • the design of the damping devices as eddy current damper has the advantage that the damping characteristic of the respective stabilization system can be easily adjusted by simple measures, for example by the distance of the magnets or by the geometry of the eddy current plates.
  • first stabilization system and the second stabilization system have the same response to the jamming movements.
  • This measure has the advantage that binocular vision defects, which are caused by different images of both visual channels, are avoided as far as possible.
  • the above-mentioned measure causes the first and the second stabilization system to consistently respond to jamming movements.
  • first stabilization system and the second stabilization system each have at least one tare mass for balancing the equilibrium position.
  • the at least one first stabilization system and the at least one second stabilization system are not coupled together.
  • an interaction between the two stabilization systems is provided.
  • the eddy current damper of the two stabilization systems are coupled together by flexible conductors via at least one electrical resistance.
  • This measure has the advantage of a simple and flexible coupling between the two stabilization systems.
  • the flexible conductors can be passed through the articulated bridge between the two housings of the two optical channels, without affecting the mobility of the two housings via the articulated bridge relative to each other, and without rigidly coupling the movable optical elements or their supports together.
  • the current generated in the eddy current dampers during movements of the two optical elements is transmitted via the flexible conductors and the electrical resistance to the respective other eddy current damper, whereby both eddy current dampers are then "balanced" in their effect.
  • each eddy current damper has at least two coils, which are oriented differently, in order to take into account the different degrees of freedom of movement of the movable optical elements. It should be ensured that the coils of the two stabilization systems are connected to one another such that, for example, a horizontal excitation of one stabilization system excites the other stabilization system in the same direction.
  • a further embodiment of an interaction between the two stabilization systems is preferably that the first carrier and the second carrier are hydraulically coupled together.
  • the maximum deflection is adjustable differently in two mutually perpendicular directions in space. As a result, the advantage is achieved that the maximum deflection can be set directionally selective.
  • plastic or rubber elements for example, plastic or rubber elements, elastomeric elements or springs may be used to name a few examples.
  • FIG. 5 is a detail of the binocular device in Fig. 4 in a front view;
  • FIG. 6 shows a further development of the binocular long-range optical device in FIG. 2, wherein FIG. 6 shows only one of the two optical channels of the binocular long-range optical device;
  • the binocular long-range optical device has a first optical channel 12 and a second optical channel 14.
  • the first passive stabilization system 70 further includes a damper 78 disposed at a second end 80 of the carrier 66.
  • the damping device 78 causes a restoring force proportional to the deflection speed of the deflection of the image reversal prism 22.
  • the damping device 78 is formed as a vortex current damper and has carrier-fixed magnets 82 and a housing-fixed eddy current plate 84.
  • the two stabilizing systems 70 and 90 have the same response to the same disturbing movements.
  • the two stabilization systems 70 and 90 including the image reversal prisms 22 and 34 and the carriers 66 and 86, should be designed to be as identical as possible to one another.
  • the first stabilization system 70 and the second stabilization system 90 have means 105, 107, 109 and / or 111 for adjusting the aforementioned restoring forces.
  • Such devices 105, 107, 109 and 111 for adjustment may be provided, for example, on the damping devices 78 and 98 and / or on the spring joints 72 and 92.
  • adjustment devices can also be provided which have one or more tare weights in order to adjust or balance the equilibrium position of the respective stabilization system 70 or 90. This will be described later in more detail.
  • FIG. 3 an embodiment of the binocular far-optical device 10 is shown, wherein in Fig. 3 elements which are identical or comparable to elements in Fig. 2, are provided with the same reference numerals.
  • Fig. 3 shows the case of an effect coupling of the two stabilization systems 70 and 90 with each other via the restoring forces proportional to the deflection speed.
  • dampers 78 and 98 both of which are formed as eddy current dampers, are coupled together.
  • damping devices 78 and 98 are connected to one another in such a way via the resistor or the resistors 110 that, for example, way in a deflection of the image reversal prism 22 in a certain direction and the image reversal prism 34 is deflected in exactly the same direction.
  • the damping (restoring force proportional to the deflection speed) is decisively determined by the coupling resistor (s) 110.
  • the resistor 110 or resistors 110 are adjustable so as to be able to adjust the damping.
  • the first stabilization system 70 is operatively coupled to the second stabilization system 90 via a hydraulic device 112.
  • FIG. 5 shows the hydraulic device 112 in the region of its connection to the first carrier 66. An attachment of the hydraulic device 112 identical to this exists to the second carrier 86, so that only the connection to the first carrier 66 is described ,
  • the hydraulic device 112 has four pressure transducers / pressure generators 116 arranged circumferentially offset on the first carrier 66 by 90 ° with respect to each other, each of which is designed as a bellows 118.
  • Each bellows 118 acts as a pressure transducer and as a pressure generator 116.
  • Both stabilization systems 70 and 90 are subject to gravity when using the long-range optical device 10. It must therefore be ensured that the two stabilization systems 70 and 90 are balanced independently of the orientation of the long-range optical device 10, so that the stabilization systems 70 and 90 do not tilt, in particular do not tilt relative to one another.
  • the individual parts of the assembly are first designed so that the assembly is as close as possible to the balanced state. In the next step, then only manufacturing tolerances and possibly small differences in the mass distribution have to be compensated, which give rise to torques due to gravity. These torques are eliminated by adjustable tare weights.
  • sliding taring masses 122, 124 are arranged on the carrier 66 in the direction of the z-axis, which are arranged in the form of narrow rings on the inside or outside of the carrier 66.
  • Tariermassen After all Tariermassen have been positioned, they are still permanently fixed, for example by means of clamping screws, by adhesive or by pure static friction, such as a rubber coating on the friction surfaces, which can be reinforced by thread friction.
  • FIG. 7 shows a section of the first optical channel 12 of the binocular long-range optical device 10.
  • the housing 16 and the carrier 66 is shown in fragmentary manner in the region of its second end 80 accordingly.
  • the binocular long-range optical device 10 has an end position limiting device 130, by means of which the maximum deflection of the carrier 66 and thus of the image reversing prism 22 not shown in FIG. 7 is adjustable.
  • a corresponding end position limiting device 130 is preferably also provided for the second optical channel 14, which may be configured identically with the end position limiting device 130 of the first optical channel 12, so that only the end position limiting device 130 of the first optical channel 12 will be described below.
  • the end position limiting device 130 has a housing-side stop 132 for the first carrier 66.
  • the stopper 132 is in the form of a cylindrical sleeve, the inner wall 134 of which tapers stepwise between a first end 136 and a second end 138. In the embodiment shown, a total of three Steps 140, 142, 144 are present, so that the inner wall 134 of the stopper 132 has three axially consecutive different inner diameters.
  • the stop 132 is positionally adjustable in the longitudinal direction according to a double arrow 146.
  • the end 80 of the carrier 66 has an elastic shock absorber 148.
  • the elastic shock absorber 148 is here as the end 80 of the support 66 surrounding ring of an elastic, such as elastomeric material is formed. However, it may also be provided circumferentially distributed individual elastic shock absorbers. Furthermore, additionally or alternatively, the inner wall 134 of the stop 132 may be provided with one or more elastic shock absorbers.
  • the positioning and locking mechanism 152 is formed here in the form of a releasable catch.
  • the stopper 132 is locked in a middle position (position 2), in which the carrier 66 can be deflected by the distance between the outer periphery of the elastic shock absorber 148 and the inner diameter of the step 142.
  • the stopper 132 When the stopper 132 is moved to position 1, the first stage 140 and the elastic shock absorber 148 face each other.
  • the outside diameter The elastic shock absorber 148 and the inner diameter of the step 140 are selected to be substantially the same. If the stop 132 is in position 1, the carrier 66 can thus no longer be deflected out of its rest position shown in FIG. In position 1, the end position limiting device 130 thus acts as a blocking device which limits the maximum deflection of the carrier 66 to zero. In position 1, the stabilization system 70 is deactivated in other words.
  • the carrier 66 can be deflected according to the distance between the elastic shock absorber 148 and the step 144, with only the maximum deflection of the carrier 66 being greater than in the position 2 of the stopper 132.
  • the stabilization system 70 is "fully” activated, in position 2 the stabilization system 70 is "halfway” activated.
  • a return spring 154 is present, which biases the stop 132 in the position 1 (blocking position).
  • abutment 132 can also be designed such that the inner wall 134 continuously tapers between the first end 136 and the second end 138. It is also possible to design the inner wall 134 of the stop 132 throughout with the same inner diameter, and instead to provide the carrier 66 with a stepped or continuously tapering outer diameter.
  • the positioning and locking mechanism 152 can be continuously adjusted, whereby the maximum deflection of the image reversing prism 22 and the Carrier 66 is continuously adjustable.
  • the arrangement of the end position limiting device 130 at one end of the carrier 66, here at the end 80 of the carrier 66, the mechanical load on the end position limit 130 is low.
  • the end position limiting device 160 has a carrier-side stop 162 in the form of a projection which extends transversely to the longitudinal direction of the carrier 66 and which may be formed, for example, as a thin sheet metal, in particular as a spring plate.
  • the Endlagenbegrenzungs worn 160 further includes two gepurei term jaws 164, 166 which extend transversely to the longitudinal direction of the housing 16, and laterally with elastic shock absorbers 168, 170 are provided. Via a positioning and locking mechanism 172, the distances between the shock absorbers 168, 170 and thus also the distance between the respective shock absorber 168, 170 vary from the projection 162. By a suitable positive guidance, the two jaws 164, 162 can be uniformly moved toward and away from each other.
  • the projection 162 performs a circular arc-like movement and comes with the shock absorber 168 or with the shock absorber 170 in contact, whereby the maximum deflection of the carrier 66 and thus the image reversal prism 22 is defined.
  • the stops 164 and 166 are positionable and lockable in three discrete positions 1, 2, 3, wherein the position 1 limits the maximum deflection of the carrier 66 to zero. In position 1 (distance between the shock absorbers 168 and 170 is equal to the thickness of the projection 162) the end position limiting device 160 thus acts as a locking device. direction that deactivates the stabilization system 70. In position 3, the maximum deflection of the carrier 66 is greatest, and in position 2, the maximum deflection of the carrier 66 is different from zero, but reduced from position 3.
  • a stepless adjustment of the maximum deflection can be provided, in which instead of the three discrete positions 1, 2 and 3, the stops 164 and 166 can be continuously adjusted in position and locked.
  • the end position limiting devices 130 and 160 act in the same direction as the deflection of the carrier 66 in all spatial directions.
  • the end position limiting device such that the maximum deflection of the carrier 66 can be set differently in different spatial directions. This is realized in that the Endlagenbegrenzungs worn, as shown in Fig. 9 with arrows 174, a plurality, but at least three circumferentially delimited punctual individual stops which are circumferentially evenly distributed around the first carrier 66 around. So that the end position limiting device can also act as a blocking device, at least three such individual stops are required.
  • the maximum deflection of the carrier 66 can be set differently in different spatial directions.
  • the limitation of the maximum deflection depends on the shape of the carrier 66 and the number and distribution of the individual stops around the carrier 66.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Telescopes (AREA)
  • Adjustment Of Camera Lenses (AREA)

Abstract

L'invention concerne un dispositif binoculaire pour l'observation d'objets éloignés, comprenant : un premier canal optique (12) qui présente un premier boîtier (16) et un premier agencement (18) de premiers éléments optiques (20, 22, 24, 26) dans le premier boîtier (16), le premier agencement (18) présentant au moins un premier élément optique (22) mobile par rapport au premier boîtier (16); un deuxième canal optique (14) qui présente un deuxième boîtier (28) et un deuxième agencement (30) de deuxièmes éléments optiques (32, 34, 36, 38) dans le deuxième boîtier (28), le deuxième agencement (30) présentant au moins un deuxième élément optique (34) mobile par rapport au deuxième boîtier (28); et au moins un système de stabilisation passive, basé sur l'inertie de masse, servant à stabiliser l'image en cas de mouvements parasites des premier et deuxième boîtiers (16, 28). Ledit au moins un premier élément optique mobile (22) et ledit au moins un deuxième élément optique mobile (34) sont mobiles l'un par rapport à l'autre. Ledit au moins un système de stabilisation (70) présente au moins un premier système de stabilisation passive, basé sur l'inertie de masse, qui agit sur ledit au moins un premier élément optique mobile (22) du premier canal optique, et au moins un deuxième système de stabilisation passive (90), basé sur l'inertie de masse, qui agit sur ledit au moins un deuxième élément optique mobile (34) du deuxième canal optique. Le premier boîtier (16) et le deuxième boîtier (28) sont reliés l'un à l'autre par un pont articulé (44).
EP13700497.4A 2012-01-13 2013-01-08 Dispositif binoculaire pour l'observation d'objets éloignés, comportant un système de stabilisation d'image Withdrawn EP2802922A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201261586288P 2012-01-13 2012-01-13
DE102012000859.7A DE102012000859B4 (de) 2012-01-13 2012-01-13 Binokulare fernoptische Vorrichtung mit Bildstabilisierung
PCT/EP2013/050177 WO2013104595A1 (fr) 2012-01-13 2013-01-08 Dispositif binoculaire pour l'observation d'objets éloignés, comportant un système de stabilisation d'image

Publications (1)

Publication Number Publication Date
EP2802922A1 true EP2802922A1 (fr) 2014-11-19

Family

ID=48693077

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13700497.4A Withdrawn EP2802922A1 (fr) 2012-01-13 2013-01-08 Dispositif binoculaire pour l'observation d'objets éloignés, comportant un système de stabilisation d'image

Country Status (4)

Country Link
US (1) US20150309327A1 (fr)
EP (1) EP2802922A1 (fr)
DE (1) DE102012000859B4 (fr)
WO (1) WO2013104595A1 (fr)

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JP6921601B2 (ja) * 2017-04-21 2021-08-18 日本電産サンキョー株式会社 振れ補正機能付き光学ユニット
US10739609B1 (en) * 2018-08-01 2020-08-11 National Technology & Engineering Solutions Of Sandia, Llc Jitter minimization flexure pointing system
JP7361781B2 (ja) * 2019-09-10 2023-10-16 株式会社ニコンビジョン 双眼鏡及び目標位置算出方法

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Also Published As

Publication number Publication date
DE102012000859A1 (de) 2013-07-18
WO2013104595A1 (fr) 2013-07-18
DE102012000859B4 (de) 2021-05-06
US20150309327A1 (en) 2015-10-29

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