WO2011072239A2 - Monture optique ultra-stable et procédé d'utilisation - Google Patents

Monture optique ultra-stable et procédé d'utilisation Download PDF

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Publication number
WO2011072239A2
WO2011072239A2 PCT/US2010/059917 US2010059917W WO2011072239A2 WO 2011072239 A2 WO2011072239 A2 WO 2011072239A2 US 2010059917 W US2010059917 W US 2010059917W WO 2011072239 A2 WO2011072239 A2 WO 2011072239A2
Authority
WO
WIPO (PCT)
Prior art keywords
mount
positioning
optical
optical mount
bearing member
Prior art date
Application number
PCT/US2010/059917
Other languages
English (en)
Other versions
WO2011072239A3 (fr
Inventor
David Ocepek
Daryl Ashby
Daniel Hedberg
Original Assignee
Newport Corporation
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 Newport Corporation filed Critical Newport Corporation
Publication of WO2011072239A2 publication Critical patent/WO2011072239A2/fr
Publication of WO2011072239A3 publication Critical patent/WO2011072239A3/fr

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/003—Alignment of optical elements
    • G02B7/004—Manual alignment, e.g. micromanipulators

Definitions

  • a relatively simple optical mount comprises a lens holder coupled to a post configured to be supported within a post holder.
  • simple optical mounts have proven to be useful, a number of shortcomings have been identified. For example, very precise positioning of the optical component secured to the simple optical mount has proven time consuming.
  • kinematic optical mounts capable of precisely positioning an optical component at a desired location.
  • the UltimaTM kinematic optical mount manufactured by the Newport Corporation includes two or more adjustment devices, thereby permitting the user to selectively adjust the pitch and yaw of an optical component supported by the optical mount.
  • the kinematic optical mount permits the user to quickly and precisely adjust the location of an optical component supported thereby.
  • a number of shortcomings have been identified.
  • most kinematic optical mounts include a fixed plate and a movable plate coupled together by an array of springs or biasing members and leveling screws or adjustment devices.
  • the springs provide a force to the movable plate biasing the movable plate towards the fixed plate.
  • the leveling screws are used to selectively control the separation between the movable plate and fixed plate, resulting in the application of an opposing force to the spring-biased movable plate.
  • the opposing force-based kinematic optical mounts provide a deterministic design
  • the materials forming the kinematic mount are not deterministic. As such, phenomena such as friction and finite contact area are omnipresent and negatively affect the stability of the kinematic mount. Further, these kinematic devices tend to be load capacity limited and may be more susceptible to thermal distortion.
  • very high precision, highly stable kinematic optical mounts tend be time consuming to manufacture.
  • the device disclosed in Wang uses a lock ring to apply a lateral frictional force to the optical carrier thereby securely positioning the optical component at a desired location.
  • load is transferred directly from the lock ring to the optical mount.
  • This application of load to the optical carrier may influence the position of the optical component and optical carrier during the locking procedure.
  • the device disclosed in Wang includes diametrically opposing actuators for adjusting the position of the optical carrier. While Wang contains very little detail on this feature, the inclusion of diametrically opposing actuators in optical mounts has historically proven challenging to implement and expensive to produce.
  • the present application discloses various embodiments of an ultra-stable optical mount system.
  • the present optical mount system includes multiple bearing systems configured to utilize elastic averaging to securely position an optical element coupled to the optical mount at a desired location.
  • the present optical mount system is capable of having the optical mount positioning device detached from the optical mount, thereby permitting a user to precisely position and align the optical mount, lock the position of the optical mount relative to a point of interest, and detach the positioning device.
  • the present application is directed to an optical mount system and includes an optical mount having a carrier device and a mount body, the carrier device configured to secure at least one optical component, and a positioning device detachably coupled to the optical mount, the positioning device configured to controllably adjust the position the carrier device relative to the mount body.
  • the present application is directed to an optical mount and includes an optical mount having a carrier device and a mount body, the carrier device configured to secure at least one optical component, at least one positioning bearing system positioned between the carrier device and the mount body of the optical mount, and at least one load bearing system positioned on the optical mount and configured to apply at least one load force to the carrier device and the mount body.
  • the present application is directed to an optical mount system and includes an optical mount having a carrier device and a mount body, the carrier device configured to secure at least one optical component, at least one positioning bearing system positioned between the carrier device and the mount body of the optical mount, at least one load bearing system positioned on the optical mount and configured to apply at least one load force to the carrier device and the mount body, and a positioning device detachably coupled to the optical mount, the positioning device configured to controllably adjust the position the carrier device relative to the mount body.
  • the present application further discloses various methods of aligning an optical component secured to an optical mount.
  • the present application discloses coupling the optical mount to a work surface, the optical mount supporting at least one optical component with a carrier device movably coupled to a mount body via a positioning bearing system and a load bearing system, detachably coupling a positioning device to the optical mount, actuating at least one positioning actuator located on the positioning device to adjust the position of the carrier device relative to the mount body via the positioning bearing system, positioning the optical component supported by the carrier at a desired located, selectively applying a locking force to the positioning bearing system and load bearing system of the optical mount thereby securing the position of the carrier device relative to the mount body, and decoupling the positioning device from the optical mount.
  • the present application discloses a method of aligning an optical component secured to an optical mount and discloses coupling the optical mount to a work surface, the optical mount supporting at least one optical component with a carrier device movably coupled to a mount body via a positioning bearing system and a load bearing system, positioning the optical component supported by the carrier at a desired located, and selectively applying a locking force to the positioning bearing system and load bearing system of the optical mount thereby securing the position of the carrier device relative to the mount body.
  • FIG. 1 shows a perspective view of an embodiment of an ultra-stable optical mount having a positioning device coupled to an optical mount
  • FIG. 2 shows a perspective view of an embodiment of an ultra-stable optical mount comprising an optical mount and a positioning device detached from the optical mount;
  • FIG. 3 shows an elevated perspective view of the rear portion of an embodiment of an optical mount for use in an optical mount system
  • FIG. 4 shows a cross-sectional rearward view of an embodiment of an optical mount for use with an optical mount system
  • FIG. 5 shows a cross-sectional forward view of an embodiment of an optical mount for use with an optical mount system
  • FIG. 6 shows a cross-sectional planar view of an embodiment of an optical mount for use with an optical mount system
  • Fig. 7 shows an elevated perspective view of an embodiment of a positioning device for use with an optical mount system
  • Fig. 8 shows an elevated perspective view of an embodiment of a positioning device for use with an optical mount system, the positioning device having the body panels removed from the body member;
  • FIG. 9 shows an elevated cross-section view of an embodiment of a positioning device for use with an optical mount system
  • Fig 10 shows an elevated cross-section view of an embodiment of a positioning device for use with an optical mount system
  • Fig 11 shows an elevated cross-section view of an embodiment of a positioning device for use with an optical mount system
  • Fig. 12 shows a perspective view from the rear of a positioning device coupled to a optical mount forming an optical mount system.
  • Figs. 1 and 2 of the present application show various views of an embodiment of an optical mount system.
  • the optical mount system 10 may include an optical mount 12 configured to support at least one optical component 16 and a positioning device 14 coupled to the optical mount 12.
  • Fig. 1 shows the optical mount 12 having the positioning device 14 coupled thereto.
  • the positioning device 14 may be detachable from the optical mount 12.
  • the positioning device 14 may be non-detachably coupled to the optical mount 12.
  • the positioning device 14 may be integral to the optical mount 12.
  • the optical mount 12 and positioning device 14 may form a monolithic structure.
  • the optical mount 12 may be used without the positioning device 14.
  • Figs 3-6 show various views of an embodiment of an optical mount 12 configured for use with the optical mount system 10 shown in Figs. 1 and 2.
  • the optical mount 12 includes at least one mount structure 20 and at least one carrier device 22.
  • the mount structure 20 and the carrier device 22 are manufactured from the same materials.
  • the mount structure 20 and carrier device 22 are manufactured from different materials. Any variety of materials may be used to manufacture the mount structure 20 and carrier assembly 22, including, without limitations, aluminum, steel, titanium, copper, brass, various alloys, polymers, silicon, silica, composite materials, carbon fiber, glass-impregnated polymers, ceramics, and the like.
  • the mount structure 20 and carrier device 22 may be manufactured in any variety of ways, including, without limitations, machining, injections molding, and the like.
  • One or more component recesses 24 may be formed in the carrier device 22.
  • the component recess 24 may be configured to receive at least one optical component therein.
  • the component recess 24 may be formed in any variety of size and configurations.
  • the component recess 24 is configured to receive at least one component insert 18 therein.
  • the component insert 18 may be configured to be detachably coupled to the carrier device 22 and configured to position and secure the optical component 16 within the component recess 24.
  • one or more retaining devices 26 may be positioned within or proximate to the component recess 24.
  • the retaining devices 26 may be configured to couple the component insert 18 to the carrier device 22.
  • the retaining devices 26 may be configured to engage an optical component 16 positioned within the component recess 24 and retain the optical component 16 therein.
  • Exemplary retaining devices include, without limitations, threaded members, pins, clips, various adhesives, friction fit devices, and the like.
  • the optical mount 12 may include one or more positioning assemblies 28 positioned within at least one positioning assembly passages 30 sized to receive a positioning assembly 28 therein.
  • the positioning assembly 28 is coupled to the carrier device 22. Any variety of coupling techniques may be used to couple the positioning assembly 28 to the carrier device 22, including, adhesive bonding, welding, brazing, in threaded relation, and the like.
  • the positioning assembly 28 and carrier device 22 are monolithically formed, and, as such, are integral.
  • the positioning assembly 28 may be manufactured from any variety of materials, including, steel, titanium, aluminum, brass, various alloys, polymers, and the like.
  • the carrier device 22 may include at least one carrier positioning bearing member 32 thereon.
  • the carrier positioning bearing member 32 is coupled to the carrier device 22 using any variety of methods known in the art, including, adhesively bonded, mechanically coupled, and the like.
  • the carrier positioning bearing member 32 is monolithically formed on the carrier device 22.
  • the carrier positioning bearing member 32 may be configured to movably engage least one mount bearing member 42 formed on the mount body 40 the mount structure 20.
  • the mount bearing member 42 may be monolithically formed on the mount body 40 or, in the alternative, mechanically coupled thereto.
  • the carrier bearing member 32 and the mount bearing member 42 may cooperatively form a positioning bearing 34 enabling the carrier device 22 to be movably with respect to the stationary mount structure 20.
  • the positioning bearing 34 comprises a spherical bearing.
  • the carrier bearing member 32 and mount bearing member 42 may form arcuate bearing structures.
  • the positioning bearing 34 may form any variety of bearing devices, including, ball and cone systems, ball and tetrahedron system, and the like. During use, the positioning bearing system 34 enables the carrier device 22 to be movable with respect to the mount structure 20.
  • the optical mount 12 may include at least one flange 44 coupled to or otherwise positioned proximate to the mount structure 20.
  • the flange 44 may be configured to enable the optical mount 12 to be coupled to an optical table or bench (not shown).
  • the flange 44 may include one or more recesses 60 formed therein.
  • the recess 60 may be configured to receive one or more fasteners 58 therein thereby permitting the optical mount 20 to be coupled to a work surface.
  • Exemplary fasteners 58 include, without limitations, screws, bolts, pins, magnetic devices, friction devices, mechanical couplers, adhesives, and the like.
  • the recess 60 may be configured to receive at least a portion of the positioning device 14 therein, thereby permitting the positioning device 14 to be coupled to the optical mount 12.
  • the positioning device 14 may be detachably coupled to the optical mount 12.
  • at least a portion of the recess 60 may be threaded and configured to receive at least a portion of the positioning device 14 therein.
  • the flange 44 is integral to the mount structure 20.
  • the flange 44 is coupled to the mount structure 20 using any variety of couplers known in the art.
  • the flange 44 may be coupled to the mounting structure 20 using screws, bolts, pins, adhesive materials, welds, and the like.
  • the optical mount 12 may include at least one mount structure load bearing member 46 configured to engage at least one structure body bearing member 48 formed on the load structure body 52.
  • at least one of the mount structure load bearing member 46 positioned on the mount body 40 and the structure bearing member 48 formed on the load structure body 52 are monolithically formed thereon.
  • the mount structure load bearing member 46 and the structure bearing member 48 may be coupled to the respective mount body 40 and load structure body 52 using any variety of techniques known in the art, including, without limitations, mechanical coupling, adhesive coupling, and the like.
  • the mount structure bearing member 46 and the structure bearing member 48 cooperatively form a load bearing system 50 allowing a locking force to be selectively applied to the carrier device 22 movably coupled to the mount structure 20, thereby restricting movement of the carrier device 22 with respect to the mount structure 20.
  • the load bearing system 50 forms a spherical bearing.
  • the mount structure load bearing member 46 and the structure bearing member 48 may form arcuate bearing structures.
  • the load bearing system 50 may form any variety of bearing devices, including, ball and cone systems, ball and tetrahedron system, and the like.
  • the lock bearing device may form any variety of bearing devices.
  • the positioning assembly passage 30 continues through the load structure body 52 allowing at least a portion of the positioning assembly to extend there beyond.
  • the positioning assembly 28 includes at least one coupling body 54 which extends beyond at least a portion of the load structure body 52.
  • At least one lock device 56 may be positioned proximate to the load structure body 52.
  • the lock device 56 is configured to engage and securely couple to the coupling member 54 of the positioning assembly 28.
  • the coupling body 54 may include one or more thread members configured to have at least a portion of the lock device 56 secured thereto. For example, as shown in Fig.
  • a user may tighten the lock device 56 thereby applying at least one locking force L f to the positioning assembly 28, thereby resulting on a locking force being uniformly applied to positioning bearing system 34 and the load bearing system 50.
  • the carrier device 22 will be substantially immovable with respect to the mount structure 20.
  • a user may loosen the lock device 56 thereby decreasing the at least one locking force Lf to the positioning assembly 28, thereby decreasing on a locking force being uniformly applied to positioning bearing system 34 and the load bearing system 50.
  • the carrier device 22 will be movable with respect to the mount structure 20.
  • Fig. 7 shows an embodiment of a positioning device 14 for use with an optical mount system 10.
  • the positioning device 14 includes a positioning device body 70 which defines a receiving aperture 72.
  • the positioning device body 70 may be formed from one or more body members 66 configured to receive one or more body panels 68 secured thereto.
  • the body panels 68 may be configured to enclose or otherwise position various aspects of the positioning device 14 within the body member 66 of the positioning device body 70.
  • the receiving aperture 72 is sized to receive at least a portion of the optical mount 12 therein.
  • the receiving aperture 72 may be configured not to receive a portion of the optical mount 12 therein.
  • At least one coupling feature 74 may be positioned on or in communication with the positioning device body 70.
  • the coupling feature 74 includes a coupling device 76 which extends through the positioning device body 70 and may be configured to engage at least one fastener recess 60 formed on the optical mount 12 (see Fig. 3), thereby coupling the positioning device 14 to the optical mount 12.
  • the coupling device 76 include one or more threads thereon, thereby permitting the positioning device 14 to be detachably coupled to the optical mount 12.
  • the positioning device 14 may be non-detachably coupled to the optical mount 12.
  • the positioning device 14 includes one or more positioning actuators thereon.
  • a first positioning actuator 82, a second positioning actuator 84, and a third positioning actuator 86 are in communication with the positioning device body 70.
  • at least a portion of the first actuation device 82 is positioned within at least one passage 104 formed in the positioning device body 70.
  • one or more passages may be formed in the positioning device body 70 configured receive at least a portion of the second actuator 84 and/or third actuator 86 therein.
  • the positioning device 14 may include at least one positioning body 92.
  • the positioning body 92 is located within or proximate to the receiving aperture 72.
  • at least one engaging member 90 coupled to the positioning body 92 may be located within the receiving aperture 72.
  • the positioning body 92 is in communication the third positioning actuator 86 via at least one drive member support 88. As such, the positioning body 92 may be selectively movable along a first direction D] by actuation of the third positioning actuator 86.
  • Fig. 9 shows a perspective view of various components of the positioning device 14.
  • the positioning device body 70 has been removed from the device to more clearly detail operation of the positioning actuators 82, 84, and 86, respectively.
  • the first positioning actuator 82 includes at least one actuation device 100 having at least one engaging member 102 coupled thereto or in communication therewith.
  • the engaging member 102 may include one or more thread members thereon.
  • the engaging member 102 is configured to engage at least one actuation insert 106 positioned within the passage 104 formed in the positioning device body 70 (See Fig. 7).
  • the engaging member 102 may be configured to engage the passage 104.
  • the actuation insert 106 may be threaded thereby permitting the threaded engaging member 102 to be selectively movable along the line D 2 with respect to the positioning device body 70 and the positioning body 92. As such, as shown in Fig. 8, at least a portion of the engaging member 102 may traverse through the position device body 70 and protrude into the receiving aperture 74.
  • the second positioning actuator 84 includes at least one actuation device 110 having at least one engaging member 112 coupled thereto or in communication therewith. At least a portion of the actuation device 110 may be positioned within or proximate to at least one positioning actuation body 114 formed on the positioning device body 70 (See Figs. 7 and 8).
  • the actuation device 110 may include one or more thread members thereon. The thread members formed on the actuation device 110 may be configured to engage one or more thread member formed on the position actuation body 114.
  • the engaging member 112 is configured to selectively traverse a passage (not shown) formed in the positioning device body 70.
  • the user may actuate the actuation device 110 thereby causing the thread members formed thereon to engage the thread members formed on the positioning actuation body 114 resulting in the engaging member 112 to be selectively movable along the line D 3 with respect to the positioning device body 70 and the positioning body 92.
  • the actuation device 110 may include one or more biasing features 116 thereon.
  • the biasing feature 116 is configured to engage at least one biasing member 118 positioned within the position actuation body 114.
  • the biasing feature 116 and biasing member 1 18 are configured to apply biasing force F] to the actuation device 110, thereby applying an anti-lash force to the second actuation device 84.
  • Figs. 9-12 show various views of the third positioning device 86.
  • the third positioning device 86 includes at least one actuation device 120 having one or more drive members 122 coupled thereto.
  • the drive member 122 may be positioned within or otherwise supported by a drive member support 88 positioned within the positioning device body 70.
  • the drive member 122 may include one or more thread members formed thereon.
  • at least one positioning drive 124 may be formed on or otherwise positioned on the positioning body 92.
  • the positioning drive 124 comprises an insert positioned within a passage formed in the positioning body 92.
  • the positioning drive 124 includes one or more thread members configured to engage the thread members formed on the drive member 122.
  • one or more bearing members 128 are positioning between the positioning body 92 and the positioning device body 70.
  • the bearing members 128 comprise one or more cross-roller bearing devices.
  • the bearing members 128 may comprise roller bearings, dovetail slide systems, flexure devices and the like.
  • the bearing members 128 may be integral to or detachably coupled to the positioning body 92 and the positioning device body 70.
  • the positioning body 92 may be movable with respect to the position device body 70.
  • the user actuates the third position actuator 86 thereby causing the thread members of the positioning drive 124 to engage and be thread members of the drive member 122 retained within the positioning device body 70.
  • the positioning body 92 is selectively moved along line Di with respect to the positioning device body 70.
  • one or more biasing members 126 are positioned with the positioning device body 70 and configured to engage the positioning body 92, thereby applying a anti-lash biasing force F 2 to positioning body 92.
  • Fig. 12 shows a perspective view of an embodiment of a positioning device 14 coupled to an optical mount 12.
  • the load structure body 52 is positioned within the receiving aperture 72 of the positioning body 92.
  • the positioning body 92 is movably coupled to the positioning device body 70.
  • the coupling feature 74 has been configured to engage the optical mount 12, thereby detachably coupling the positioning device 14 to the optical mount 12.
  • at least a portion of the engaging device 102 protrudes into the receiving aperture 72 and engages the locking device 56 coupled to the thread member 54 on the load structure body 52.
  • the engaging member 102 is applying a first positioning force to the locking device 56 which is in communication with the positioning assembly 28 of the optical mount 12.
  • the engaging member 112 protrudes into the receiving aperture 72 and engages the locking device 56 coupled to the thread member 54 on the load structure body 52.
  • the engaging member 112 is applying a second positioning force to the locking device 56 which is in communication with the positioning assembly 28 of the optical mount 12.
  • the positioning body 92 such as the engaging members 90, engages the locking device 56 coupled to the thread member 54 on the load structure body 52 thereby applying a third positioning force to the locking device 56 which is in communication with the positioning assembly 28 of the optical mount 12.
  • the user secures the optical mount 12 to a work surface at a desired location.
  • the user may fasten one or more fasteners 58 positioned within the fastener recesses 60 and configured to engage and securely fasten the optical mount 12 to the work surface.
  • the fastener 58 comprises a threaded member.
  • the optical mount 12 may be coupled to the work surface using any variety of techniques or methods known in the art, including, without limitations, magnetic coupling, adhesive coupling, soldering, welding, and the like.
  • the positioning device 14 may be positioned proximate to the optical mount 12.
  • the coupling feature 74 of the positioning device 14 is configured to engage at least one fastener recess 60 formed on the flange 44 of the optical mount 12.
  • the positioning device 14 may be coupled to the optical mount 12 using any techniques known in the art.
  • the positioning device 14 may be integral to the optical mount 12.
  • the optical component 16 retained within the carrier device 22 may be selectively positioned.
  • the user may deactivate at least one of the first, second and/or third position actuators 82, 84, 86, respectively.
  • the user may decouple the positioning device 14 from optical mount 12.
  • the user may actuate (tighten) the locking device 56 positioned on the load structure body 52 to apply a greater force to at least one of the positioning bearing system 34 and/or preload bearing system 50, thereby securing position and orientation of the carrier device 22 relative to the mount body 40.
  • the present non-kinematic optical mount 12 provides an inexpensive, stable, highly adjustable, lockable optical mount. By decoupling the adjustment mechanism from the optical mount, the present optical mount overcomes many of the shortcomings such as thermal stability, repeatability, and drift problems associated with prior art kinematic mounts.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mounting And Adjusting Of Optical Elements (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

La présente invention porte sur un système de monture optique, et comprend une monture optique comportant un dispositif de support et un corps de montage, au moins un système de palier de positionnement positionné entre le dispositif de support et le corps de montage de la monture optique, au moins un système de support de charge positionné sur la monture optique et configuré de façon à appliquer au moins une force de charge au dispositif de support et au corps de montage, et un dispositif de positionnement couplé de façon détachable à la monture optique, le dispositif de positionnement étant configuré de façon à régler d'une façon pouvant être commandée et configurée la position du dispositif de support par rapport au corps de montage.
PCT/US2010/059917 2009-12-11 2010-12-10 Monture optique ultra-stable et procédé d'utilisation WO2011072239A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US28404409P 2009-12-11 2009-12-11
US61/284,044 2009-12-11

Publications (2)

Publication Number Publication Date
WO2011072239A2 true WO2011072239A2 (fr) 2011-06-16
WO2011072239A3 WO2011072239A3 (fr) 2011-10-06

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6247676B1 (en) * 1999-03-31 2001-06-19 Gary Yanik High resolution rotary positioning apparatus
US6267348B1 (en) * 1997-03-28 2001-07-31 Centre National D'etudes Spatiales (C.N.E.S.) Device for micrometric positioning of a space optical support element along six degrees of freedom
US20070188620A1 (en) * 2006-02-10 2007-08-16 Tatsuyuki Takahashi Image stabilizer, lens device and imaging apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6267348B1 (en) * 1997-03-28 2001-07-31 Centre National D'etudes Spatiales (C.N.E.S.) Device for micrometric positioning of a space optical support element along six degrees of freedom
US6247676B1 (en) * 1999-03-31 2001-06-19 Gary Yanik High resolution rotary positioning apparatus
US20070188620A1 (en) * 2006-02-10 2007-08-16 Tatsuyuki Takahashi Image stabilizer, lens device and imaging apparatus

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