GB1181758A - Thermography Equipment - Google Patents
Thermography EquipmentInfo
- Publication number
- GB1181758A GB1181758A GB5444968A GB5444968A GB1181758A GB 1181758 A GB1181758 A GB 1181758A GB 5444968 A GB5444968 A GB 5444968A GB 5444968 A GB5444968 A GB 5444968A GB 1181758 A GB1181758 A GB 1181758A
- Authority
- GB
- United Kingdom
- Prior art keywords
- display
- isotherm
- normal
- displays
- channel
- 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
- 238000001931 thermography Methods 0.000 title abstract 3
- 238000001514 detection method Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/30—Transforming light or analogous information into electric information
- H04N5/33—Transforming infrared radiation
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
- Radiation Pyrometers (AREA)
Abstract
1,181,758. Thermography equipment. BOFORS A.B. 15 Nov., 1968 [16 Nov., 1967], No. 54449/68. Heading H4F. Thermography equipment comprises an infrared camera and a cathode display tube 8, Fig, 1, scanning in synchronism and two channels in parallel connecting the output of the camera to the intensity modulation input of the display tube, a first channel comprising video amplifier 3 and providing a normal infra-red display and the second channel comprising amplifier and level detector 4 providing an isotherm display of these parts of the scene scanned having a temperature range as determined by the detection level of 4, a switch member 5 causing the channels to be sequentially switched through to the display tube, whereby the isotherm display is seen against a background of the normal display, the switching rate being slow enough for an observer to distinguish between the isotherm lines and those parts of the normal display having the same brightness. The switch member 5 may comprise a relay with a changeover contact or Fig. 2, a two contact relay-one contact being closed when the other is open and shorting the output of the particular channel to earth. When one or both displays are to be shown continuously switches 22 and/or 23 are opened. In the switching cycle of the displays the isothermal display is shown for approximately twice as long as the normal display. A time exposure photograph of the alternating displays will thus show the isotherm distinguishably brighter than any part of the normal display background.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE1576767A SE329508B (en) | 1967-11-16 | 1967-11-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1181758A true GB1181758A (en) | 1970-02-18 |
Family
ID=20301201
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5444968A Expired GB1181758A (en) | 1967-11-16 | 1968-11-15 | Thermography Equipment |
Country Status (6)
Country | Link |
---|---|
BE (1) | BE723864A (en) |
DE (1) | DE1808448B2 (en) |
FR (1) | FR1595701A (en) |
GB (1) | GB1181758A (en) |
NL (1) | NL6816208A (en) |
SE (1) | SE329508B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0217443A1 (en) * | 1985-09-19 | 1987-04-08 | Koninklijke Philips Electronics N.V. | Picture signal processing circuit |
GB2213019A (en) * | 1980-08-19 | 1989-08-02 | Elliott Brothers London Ltd | Head-up display systems. |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3410766A1 (en) * | 1983-03-24 | 1984-10-11 | Georgios 4050 Mönchengladbach Birbas | Roasting device |
-
1967
- 1967-11-16 SE SE1576767A patent/SE329508B/xx unknown
-
1968
- 1968-11-12 DE DE19681808448 patent/DE1808448B2/en active Pending
- 1968-11-14 NL NL6816208A patent/NL6816208A/xx unknown
- 1968-11-14 BE BE723864D patent/BE723864A/xx unknown
- 1968-11-15 GB GB5444968A patent/GB1181758A/en not_active Expired
- 1968-11-15 FR FR1595701D patent/FR1595701A/fr not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2213019A (en) * | 1980-08-19 | 1989-08-02 | Elliott Brothers London Ltd | Head-up display systems. |
GB2213019B (en) * | 1980-08-19 | 1989-10-25 | Elliott Brothers London Ltd | Head-up display systems |
EP0217443A1 (en) * | 1985-09-19 | 1987-04-08 | Koninklijke Philips Electronics N.V. | Picture signal processing circuit |
US4764811A (en) * | 1985-09-19 | 1988-08-16 | U.S. Philips Corporation | Picture signal processing circuit |
Also Published As
Publication number | Publication date |
---|---|
BE723864A (en) | 1969-04-16 |
NL6816208A (en) | 1969-05-20 |
DE1808448B2 (en) | 1976-06-10 |
FR1595701A (en) | 1970-06-15 |
DE1808448A1 (en) | 1969-06-19 |
SE329508B (en) | 1970-10-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLE | Entries relating assignments, transmissions, licences in the register of patents | ||
PCNP | Patent ceased through non-payment of renewal fee |