GB1273176A - Improvements relating to mechanical scanning arrangements - Google Patents

Improvements relating to mechanical scanning arrangements

Info

Publication number
GB1273176A
GB1273176A GB4073869A GB4073869A GB1273176A GB 1273176 A GB1273176 A GB 1273176A GB 4073869 A GB4073869 A GB 4073869A GB 4073869 A GB4073869 A GB 4073869A GB 1273176 A GB1273176 A GB 1273176A
Authority
GB
United Kingdom
Prior art keywords
mirror
oscillation
line
frequency
output
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.)
Expired
Application number
GB4073869A
Inventor
Harry Howden
John Henry Griffin
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.)
Philips Components Ltd
Original Assignee
Mullard 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 Mullard Ltd filed Critical Mullard Ltd
Priority to GB4073869A priority Critical patent/GB1273176A/en
Priority to SE1098370A priority patent/SE358469B/xx
Priority to DE19702040073 priority patent/DE2040073A1/en
Priority to FR7029846A priority patent/FR2058037A5/fr
Publication of GB1273176A publication Critical patent/GB1273176A/en
Expired 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
    • 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
    • G02B7/1821—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors for rotating or oscillating mirrors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Radiation Pyrometers (AREA)
  • Mechanical Optical Scanning Systems (AREA)

Abstract

1,273,176. Scanning apparatus. MULLARD Ltd. 14 Aug., 1969, No. 40738/69. Heading H4F. A mirror and torsion wire combination M1 is mounted on a body CA for oscillation about a first axis of the body at the natural resonance frequency determined by the wire and moment of inertia of the mirror, and the body itself is oscillated about an axis transverse to the first axis, thus performing line and frame scans respectively, the frame frequency being less than the line, or natural resonance, frequency, and being related to and synchronized with the line frequency in that the oscillation of the body is timed from the oscillation of the mirror. As shown, a vane secured to the mirror swings in the gap of a vane switched oscillator VSO to produce an output therefrom once per cycle of oscillation of the mirror. The output is shaped and amplified and fed to an electromagnet which couples with an armature on the mirror to sustain oscillation at line frequency. The output is also fed via a switch ES to a multi-pole stepping motor driving the body CA by an eccentric or cam arrangement. Such apparatus may be used in infra-red thermography employing a single cell detector, the output from which may be fed to a cathode ray tube having a long persistance phosphor. Line and frame frequencies of 96 Hz and 1 or 2 Hz respectively are mentioned.
GB4073869A 1969-08-14 1969-08-14 Improvements relating to mechanical scanning arrangements Expired GB1273176A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB4073869A GB1273176A (en) 1969-08-14 1969-08-14 Improvements relating to mechanical scanning arrangements
SE1098370A SE358469B (en) 1969-08-14 1970-08-11
DE19702040073 DE2040073A1 (en) 1969-08-14 1970-08-12 Mechanical scanning arrangement
FR7029846A FR2058037A5 (en) 1969-08-14 1970-08-13

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4073869A GB1273176A (en) 1969-08-14 1969-08-14 Improvements relating to mechanical scanning arrangements

Publications (1)

Publication Number Publication Date
GB1273176A true GB1273176A (en) 1972-05-03

Family

ID=10416373

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4073869A Expired GB1273176A (en) 1969-08-14 1969-08-14 Improvements relating to mechanical scanning arrangements

Country Status (4)

Country Link
DE (1) DE2040073A1 (en)
FR (1) FR2058037A5 (en)
GB (1) GB1273176A (en)
SE (1) SE358469B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0302682A1 (en) * 1987-08-05 1989-02-08 Compix Incorporated Portable infrared imaging apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111998801B (en) * 2020-08-19 2021-10-19 哈尔滨新光光电科技股份有限公司 Roll pendulum formula two-dimensional imaging mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0302682A1 (en) * 1987-08-05 1989-02-08 Compix Incorporated Portable infrared imaging apparatus

Also Published As

Publication number Publication date
SE358469B (en) 1973-07-30
DE2040073A1 (en) 1971-02-25
FR2058037A5 (en) 1971-05-21

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees