WO1993023780A1 - Mechanical mounting - Google Patents

Mechanical mounting Download PDF

Info

Publication number
WO1993023780A1
WO1993023780A1 PCT/GB1993/000991 GB9300991W WO9323780A1 WO 1993023780 A1 WO1993023780 A1 WO 1993023780A1 GB 9300991 W GB9300991 W GB 9300991W WO 9323780 A1 WO9323780 A1 WO 9323780A1
Authority
WO
WIPO (PCT)
Prior art keywords
rigid
resilient body
mount according
constraining means
force
Prior art date
Application number
PCT/GB1993/000991
Other languages
French (fr)
Inventor
Michael John Downs
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.
Priority to JP5520003A priority Critical patent/JPH07506658A/en
Priority to EP93910199A priority patent/EP0640224A1/en
Publication of WO1993023780A1 publication Critical patent/WO1993023780A1/en

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

Definitions

  • 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. 5
  • Traditional methods of holding rigid objects firmly in place can make the maintenance of the objects difficult.
  • the optical elements 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 10 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 15 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 polytyrene resin
  • another suitably elastic material may be substantially tubular, cylindrical or spherical in shape.
  • the resilient body may be a spring or spring like device.
  • Figure 1 shows a substantially kinematic mounting for a block
  • 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 spring- ' like member (7) made of PTFE.
  • the pin and the rigid blocks are
  • FIG. 2 a beamsplitter block (1) and a compensator plate block (11) of a michelson 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).
  • 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).

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)
  • Vibration Prevention Devices (AREA)
  • Mounting And Adjusting Of Optical Elements (AREA)

Abstract

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.

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. 5 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 10 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 15 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. 20 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. 25 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. 30 A block (1) is constrained between a rigid pin (2), the faces (3 and 4) of rigid blocks (5 and 6) and a tubular spring- ' like 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 35 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 michelson 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

CLAIMS 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.
PCT/GB1993/000991 1992-05-15 1993-05-14 Mechanical mounting WO1993023780A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP5520003A JPH07506658A (en) 1992-05-15 1993-05-14 mechanical installation
EP93910199A EP0640224A1 (en) 1992-05-15 1993-05-14 Mechanical mounting

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9210488A GB9210488D0 (en) 1992-05-15 1992-05-15 Mechanical mounting
GB9210488.4 1992-05-15

Publications (1)

Publication Number Publication Date
WO1993023780A1 true WO1993023780A1 (en) 1993-11-25

Family

ID=10715584

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1993/000991 WO1993023780A1 (en) 1992-05-15 1993-05-14 Mechanical mounting

Country Status (4)

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

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2235789A (en) * 1989-09-08 1991-03-13 Michael John Downs Michelson interferometer

Family Cites Families (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
JPS609762Y2 (en) * 1979-05-31 1985-04-05 オリンパス光学工業株式会社 lens fixing device
CH651399A5 (en) * 1981-06-11 1985-09-13 Wild Heerbrugg Ag VERSION FOR A PRISMATIC, OPTICAL COMPONENT.
EP0162961A3 (en) * 1984-04-27 1988-03-02 Siemens Aktiengesellschaft Mounting for an optical element
DE3525813A1 (en) * 1984-07-23 1986-02-27 Olympus Optical Co., Ltd., Tokio/Tokyo DEVICE FOR HOLDING LENSES
DE3521640A1 (en) * 1985-06-15 1986-12-18 Optische Werke G. Rodenstock, 8000 München SOCKET FOR OPTICAL ELEMENTS
US4770497A (en) * 1986-03-31 1988-09-13 Rockwell International Corporation Kinematic mount for heavy optics
JPH01128210U (en) * 1988-02-19 1989-09-01
DE3815372C1 (en) * 1988-05-05 1989-08-24 Optische Werke G. Rodenstock, 8000 Muenchen, De
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2235789A (en) * 1989-09-08 1991-03-13 Michael John Downs Michelson interferometer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
IBM TECHNICAL DISCLOSURE BULLETIN vol. 18, no. 12, May 1976, ARMONK, NEW YORK,USA pages 3964 - 3965 T.F. FLAVIN 'Boards on cards circuitry package' *

Also Published As

Publication number Publication date
EP0640224A1 (en) 1995-03-01
GB9210488D0 (en) 1992-07-01
GB9309980D0 (en) 1993-06-30
GB2266971A (en) 1993-11-17
JPH07506658A (en) 1995-07-20

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