GB620519A - Improvements relating to cathode ray tubes - Google Patents
Improvements relating to cathode ray tubesInfo
- Publication number
- GB620519A GB620519A GB3285846A GB3285846A GB620519A GB 620519 A GB620519 A GB 620519A GB 3285846 A GB3285846 A GB 3285846A GB 3285846 A GB3285846 A GB 3285846A GB 620519 A GB620519 A GB 620519A
- Authority
- GB
- United Kingdom
- Prior art keywords
- display
- screen
- prism
- projected
- ship
- 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
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/04—Display arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
620,519. Radiolocation. DODDS, J. M., and METROPOLITAN-VICKERS ELEC. TRICAL CO., Ltd. Nov. 5, 1946, No. 32858. [Class 40 (vii)] In a radar equipment mounted on a moving carrier such as a ship, and employing a cathoderay tube with along persistance screen to produce a display such as a plan position indicator indicating bearings relative to the axis of the ship and subject to blurring when the ship changes course, the display is first connected electrically in accordance with the compass bearing to produce a stationary " true north " display and then viewed or projected through a prism or mirror system rotated in accordance with the compass bearing, whereby a "relative " display is obtained. The " true north " display on cathode-ray tube screen 7 is projected on to a second fluorescent screen 8 by lenses, not shown, and "inverting " prism 2 mounted in a holder 6 rotated by gearing 10, 11 controlled by means 9 operated from the compass. A mirror system may replace the prism, Fig. 2 (not shown). A chart or scale may be projected on to screen 8 simultaneously with the radar display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3285846A GB620519A (en) | 1946-11-05 | 1946-11-05 | Improvements relating to cathode ray tubes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3285846A GB620519A (en) | 1946-11-05 | 1946-11-05 | Improvements relating to cathode ray tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB620519A true GB620519A (en) | 1949-03-25 |
Family
ID=10345059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3285846A Expired GB620519A (en) | 1946-11-05 | 1946-11-05 | Improvements relating to cathode ray tubes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB620519A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3109169A (en) * | 1960-01-06 | 1963-10-29 | Texas Instruments Inc | Optical system for radar strip map recorder |
| US3184735A (en) * | 1962-10-09 | 1965-05-18 | Texas Instruments Inc | Optical system for airborne ground mapping radar apparatus |
-
1946
- 1946-11-05 GB GB3285846A patent/GB620519A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3109169A (en) * | 1960-01-06 | 1963-10-29 | Texas Instruments Inc | Optical system for radar strip map recorder |
| US3184735A (en) * | 1962-10-09 | 1965-05-18 | Texas Instruments Inc | Optical system for airborne ground mapping radar apparatus |
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