GB1273176A - Improvements relating to mechanical scanning arrangements - Google Patents
Improvements relating to mechanical scanning arrangementsInfo
- 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
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.
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)
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)
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 |
-
1969
- 1969-08-14 GB GB4073869A patent/GB1273176A/en not_active Expired
-
1970
- 1970-08-11 SE SE1098370A patent/SE358469B/xx unknown
- 1970-08-12 DE DE19702040073 patent/DE2040073A1/en active Pending
- 1970-08-13 FR FR7029846A patent/FR2058037A5/fr not_active Expired
Cited By (1)
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 |