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GB2266971A - Kinematic mount especially for optical element(s) in an interferometer - Google Patents

Kinematic mount especially for optical element(s) in an interferometer Download PDF

Info

Publication number
GB2266971A
GB2266971A GB9309980A GB9309980A GB2266971A GB 2266971 A GB2266971 A GB 2266971A GB 9309980 A GB9309980 A GB 9309980A GB 9309980 A GB9309980 A GB 9309980A GB 2266971 A GB2266971 A GB 2266971A
Authority
GB
United Kingdom
Prior art keywords
rigid
resilient body
mount according
constraining means
interferometer
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Withdrawn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
GB9309980A
Other versions
GB9309980D0 (en
Inventor
Michael John Downs
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.)
BTG International Ltd
Original Assignee
British Technology Group Ltd
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 British Technology Group Ltd filed Critical British Technology Group Ltd
Publication of GB9309980D0 publication Critical patent/GB9309980D0/en
Publication of GB2266971A publication Critical patent/GB2266971A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B9/00—Measuring instruments characterised by the use of optical techniques
    • G01B9/02—Interferometers
    • G01B9/02049—Interferometers characterised by particular mechanical design details
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
    • G02B7/182—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Instruments For Measurement Of Length By Optical Means (AREA)
  • Spectrometry And Color Measurement (AREA)
  • Mounting And Adjusting Of Optical Elements (AREA)
  • Vibration Prevention Devices (AREA)
  • Details Of Measuring And Other Instruments (AREA)
  • Connection Of Plates (AREA)
  • Clamps And Clips (AREA)

Abstract

A substantially kinematic mount for a rigid object 1, 11, comprising planar, linear and point contact constraining means is claimed. At least one of the constraining means comprises a rigid body 5, 6 and a resilient body 7, 17 which together are adapted to urge said rigid object into contact with the other two of the constraining means. 2 is a rigid pin and 8 is a support surface. <IMAGE>

Description

MECHANICAL MOUNTING This invention relates to a substantially kinematic mounting for a rigid object and finds particular application in the mounting of optical elements in an interferometer.
Traditional methods of holding rigid objects firmly in place can make the maintenance of the objects difficult. In interferometers the optical elements must be held firmly but without distortion and the usual methods of gluing or bolting the element in place makes re-aligning and replacing those elements troublesome.
A substantially kinematic mount for a rigid object comprising planar, linear and point contact constraining means is provided. At least one of the constraining means comprises a rigid body and a resilient body which together are adapted to urge said rigid object into contact with the other two of the constraining means.
The rigid body and the resilient body may together synthesize either a point force, a linear force or a planar force on the object.
The resilient body may be made of polytetrafluorethene (PTFE) or another suitably elastic material and may be substantially tubular, cylindrical or spherical in shape.
Alternatively, the resilient body may be a spring or spring like device.
Embodiments of the invention will now be described with reference to the following drawings, in which Figure 1 shows a substantially kinematic mounting for a block, and Figure 2 shows an Michelson interferometer employing the mounting.
A block (1) is constrained between a rigid pin (2), the faces (3 and 4) of rigid blocks (5 and 6) and a tubular springlike member (7) made of PTFE. The pin and the rigid blocks are mounted on a support surface (8). The face (3) of rigid block (5) and the spring-like member (7) cooperate to create a force which urges the block (1) into contact with the pin and the planar face (4) of the rigid block (6).
In figure 2 a beamsplitter block (1) and a compensator plate block (11) of a mi chel son interferometer, substantially as described in patent application GB90-19647, are mounted using a substantially kinematic mounting as shown in figure 1. Two rigid blocks (5 and 6) and two rigid pins (2 and 12) are mounted on a support surface (8). A tubular spring-like member (7) and a rigid face (3) of the rigid block (5) cooperate to create a force which urges the beamsplitter (1) into contact with the pin (2) and the planar face (4) of rigid block (6). Similarly, the tubular spring-like member (17) and the rigid face (13) of the rigid block (5) cooperate to create a force which urges the compensator plate (11) into contact with pin (12) and the planar face (14) of rigid block (6).
Whilst the invention has been described with respect to a specific embodiment it will be appreciated that variations, such as the shape and material of the resilient body, may be made without departing from the ambit of the invention.

Claims (10)

1) A substantially kinematic mount for a rigid object comprising planar, linear and point contact constraining means characterised in that at least one of said constraining means comprises a rigid body and a resilient body which together are adapted to urge said rigid object into contact with the other two of said constraining means.
2. A mount according to claim 1 characterised in that the rigid body and the resilient body together synthesize a point force on the object.
3. A mount according to claim 1 characterised in that the rigid body and the resilient body together synthesize a linear force on the object.
4. A mount according to claim 1 characterised in that the rigid body and the resilient body together synthesize a planar force on the object.
5. A mount according to claim 1 characterised in that the resilient body is made of polytetrafluoroethene.
6. A mount according to claim 5 characterised in that the resilient body is substantially cylindrical in shape.
7. A mount according to claim 6 characterised in that the resilient body is substantially tubular in shape.
8. A mount according to claim 5 characterised in that the resilient body is substantially spherical in shape.
9. A mount according to claim 1 characterised in that the resilient body is a spring.
10. A mount according to claim 1 characterised in that the resilient body is a spring-like device.
GB9309980A 1992-05-15 1993-05-14 Kinematic mount especially for optical element(s) in an interferometer Withdrawn GB2266971A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9210488A GB9210488D0 (en) 1992-05-15 1992-05-15 Mechanical mounting

Publications (2)

Publication Number Publication Date
GB9309980D0 GB9309980D0 (en) 1993-06-30
GB2266971A true GB2266971A (en) 1993-11-17

Family

ID=10715584

Family Applications (2)

Application Number Title Priority Date Filing Date
GB9210488A Pending GB9210488D0 (en) 1992-05-15 1992-05-15 Mechanical mounting
GB9309980A Withdrawn GB2266971A (en) 1992-05-15 1993-05-14 Kinematic mount especially for optical element(s) in an interferometer

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB9210488A Pending GB9210488D0 (en) 1992-05-15 1992-05-15 Mechanical mounting

Country Status (4)

Country Link
EP (1) EP0640224A1 (en)
JP (1) JPH07506658A (en)
GB (2) GB9210488D0 (en)
WO (1) WO1993023780A1 (en)

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3814365A (en) * 1972-07-03 1974-06-04 Bell Telephone Labor Inc Adjustable mirror mount
US4268123A (en) * 1979-02-26 1981-05-19 Hughes Aircraft Company Kinematic mount
US4303306A (en) * 1979-05-31 1981-12-01 Olympus Optical Co., Ltd. Lens assembly
US4571028A (en) * 1981-06-11 1986-02-18 Wild Heerbrugg Aktiengesellschaft Mount for an optical component
US4600272A (en) * 1984-04-27 1986-07-15 Siemens Aktiengesellschaft Mounting arrangement for optical components
US4723833A (en) * 1984-07-23 1988-02-09 Olympus Optical Company Limited Lens mounting assembly and process
US4770497A (en) * 1986-03-31 1988-09-13 Rockwell International Corporation Kinematic mount for heavy optics
US4854671A (en) * 1985-06-15 1989-08-08 Optische Werke G. Rodenstock Mount for optical elements
US4887887A (en) * 1988-06-07 1989-12-19 Varo, Inc. Lens retainer for optical element
US4909599A (en) * 1988-05-05 1990-03-20 Optische Werke G. Rodenstock Mount for optical lens elements
US4948243A (en) * 1988-02-19 1990-08-14 Asahi Kogaku Kogyo Kabushiki Kaisha Mirror-angle adjusting arrangement
US5052782A (en) * 1989-03-14 1991-10-01 Hughes Aircraft Company Resilient lens mounting apparatus

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8920364D0 (en) * 1989-09-08 1989-10-25 Downs Michael J Optical measuring instruments

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3814365A (en) * 1972-07-03 1974-06-04 Bell Telephone Labor Inc Adjustable mirror mount
US4268123A (en) * 1979-02-26 1981-05-19 Hughes Aircraft Company Kinematic mount
US4303306A (en) * 1979-05-31 1981-12-01 Olympus Optical Co., Ltd. Lens assembly
US4571028A (en) * 1981-06-11 1986-02-18 Wild Heerbrugg Aktiengesellschaft Mount for an optical component
US4600272A (en) * 1984-04-27 1986-07-15 Siemens Aktiengesellschaft Mounting arrangement for optical components
US4723833A (en) * 1984-07-23 1988-02-09 Olympus Optical Company Limited Lens mounting assembly and process
US4854671A (en) * 1985-06-15 1989-08-08 Optische Werke G. Rodenstock Mount for optical elements
US4770497A (en) * 1986-03-31 1988-09-13 Rockwell International Corporation Kinematic mount for heavy optics
US4948243A (en) * 1988-02-19 1990-08-14 Asahi Kogaku Kogyo Kabushiki Kaisha Mirror-angle adjusting arrangement
US4909599A (en) * 1988-05-05 1990-03-20 Optische Werke G. Rodenstock Mount for optical lens elements
US4887887A (en) * 1988-06-07 1989-12-19 Varo, Inc. Lens retainer for optical element
US5052782A (en) * 1989-03-14 1991-10-01 Hughes Aircraft Company Resilient lens mounting apparatus

Also Published As

Publication number Publication date
JPH07506658A (en) 1995-07-20
EP0640224A1 (en) 1995-03-01
GB9210488D0 (en) 1992-07-01
GB9309980D0 (en) 1993-06-30
WO1993023780A1 (en) 1993-11-25

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)