GB673820A - Mounting arrangement for television pick-up tubes - Google Patents
Mounting arrangement for television pick-up tubesInfo
- Publication number
- GB673820A GB673820A GB21163/48A GB2116348A GB673820A GB 673820 A GB673820 A GB 673820A GB 21163/48 A GB21163/48 A GB 21163/48A GB 2116348 A GB2116348 A GB 2116348A GB 673820 A GB673820 A GB 673820A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- ring
- pick
- pot
- cradle
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
Abstract
673,820. Cathode-ray tubes. JACKSON, D., and PYE, Ltd. Sept. 24, 1949 [Aug. 11, 1948], No. 21163/48. Class 39 (i). A television pick-up tube has support means secured to it and accurately located with respect to the optical element thereof, such as the photo-cathode or photo-electric mosaic, which has to be located accurately with respect to the camera lens. The television camera comprises a pick-up tube 10, Fig. 1, carried by a cradle 11 which slides along guide-rods 12 mounted in the housing 13 of the camera. The sliding movement adjusts the tube 10 for focusing relatively to the camera lens 14, and is controlled by a lever 15 which is operated through a rod 16 and rocker-arm 17 on a shaft 18 with focusing control handles 19 at each end. The pick-up tube, Fig. 3, of the image iconoscope type, has a glass envelope comprising a chamber 20 connected by a neck 21 to a larger chamber 22, from which extends an arm 23 which contains the electron gun 24 for generating a scanning beam for scanning a mosaic or target electrode 25. A photo-cathode 26 is mounted at one end of the chamber 20. An aluminium pot 30, apertured at 31 to permit an optical image to be focused on the photocathode 26 by the lens 14, is mounted over the exterior of the chamber 20. At its other end the pot has secured to it a flanged ring 32 of magnetic material, which is accurately machined and fits against an accurately machined part of the pot 30. The space between the pot 30 and the tube 10 is filled with cement 33 when the pot 30 and ring 32 have been correctly located in relation to the photo-cathode 26. A second metal ring 34 is mounted over the exterior of the larger part 22 of the pick-up tube by means of cement 35 when the ring is correctly positioned. A coil 36 mounted in an annular housing 37, 38 is used to focus the electron image being transferred from the photo-cathode 26 to the target 25 and is mounted outside the pot 30. The ring 32, being of magnetic material, renders the field of the coil 36 symmetrical around the pick-up tube. The tube fits into a cradle comprising a paddle 55, Fig. 4, attached to two-part cylindrical bearing members 51, 42. A gap 57 accommodates the arm 23 of the tube. The members 42, 51 are spaced apart to a distance corresponding to that between the rings 32, 34 and have internal diameters corresponding to the external diameters of these rings. The member 42 has a flange 46 to engage the ring 32 and locate the pick-up tube longitudinally. The members 51, 42 carry sleeves 62 which slide over the guide-rods 12. Each sleeve is filled with oil, leakage being prevented by end washers. The tube is secured in the cradle by hinged clamps 40, 50 which are tightened by nuts fitted on screws 43, 53. The clamp 40 has a flange 45 to locate against the end wall of the ring 32. The ring 32 carries a U-shaped bracket 70 which supports a cradle 72 and a housing 75 for the deflecting coils 77 which deflect the electron beam in two mutually perpendicular directions. A casing 83 containing the focusing coil 85 is mounted in gimbal bearings so that the focusing coil 85 can be tilted in any direction by means of adjusting screws 87 which extend between the cradle 72 and the casing 83. A spring 88 maintains the casing 83 in contact with the adjusting screws 87. Specification 670,581, [Group XX], is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB21163/48A GB673820A (en) | 1948-08-11 | 1948-08-11 | Mounting arrangement for television pick-up tubes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB21163/48A GB673820A (en) | 1948-08-11 | 1948-08-11 | Mounting arrangement for television pick-up tubes |
Publications (1)
Publication Number | Publication Date |
---|---|
GB673820A true GB673820A (en) | 1952-06-11 |
Family
ID=10158228
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB21163/48A Expired GB673820A (en) | 1948-08-11 | 1948-08-11 | Mounting arrangement for television pick-up tubes |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB673820A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2889477A (en) * | 1955-06-16 | 1959-06-02 | Sylvania Electric Prod | Clamp and mounting arrangement |
US4600949A (en) * | 1982-09-25 | 1986-07-15 | Konishiroku Photo Industry Co., Ltd. | Video camera |
-
1948
- 1948-08-11 GB GB21163/48A patent/GB673820A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2889477A (en) * | 1955-06-16 | 1959-06-02 | Sylvania Electric Prod | Clamp and mounting arrangement |
US4600949A (en) * | 1982-09-25 | 1986-07-15 | Konishiroku Photo Industry Co., Ltd. | Video camera |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2513929A (en) | Beam centering device for cathode-ray tubes | |
US2453003A (en) | Television projection tube | |
US2292087A (en) | Evacuated electronic apparatus | |
US3809889A (en) | Image intensifier compensated for earth{40 s magnetic field | |
US2501516A (en) | Deflecting and focusing device for cathode-ray apparatus | |
GB673820A (en) | Mounting arrangement for television pick-up tubes | |
GB958172A (en) | Improvements in or relating to mounting assemblies for cathode ray tube components | |
US2266717A (en) | Electron microscope | |
US3048654A (en) | Television projection tube alignment | |
NO147577B (en) | RADAR REFLECTOR. | |
US4159436A (en) | Electron beam focussing for X-ray apparatus | |
US2935635A (en) | Cathode ray tube display system | |
US2663012A (en) | Projection television tube | |
US2727182A (en) | Image transformer with electronoptical image projection | |
GB458744A (en) | Improvements in and relating to cathode ray tubes | |
US2634381A (en) | Cathode-ray tube beam-positioning device | |
US2420560A (en) | Electron microscope | |
Castleberry et al. | An improved vidicon focusing-deflecting unit | |
US2294123A (en) | Magnetic electron lens | |
US2569327A (en) | Electron beam bender | |
GB865050A (en) | Improvements in or relating to x-ray shadow microscopes with adjustable optical focussing | |
US2233286A (en) | Electronic and light microscope | |
US3234423A (en) | Cathode-ray tube with combined clamping and shielding means | |
US4376272A (en) | Magnetic field generators for use in electromagnetic focusing type cathode ray tubes | |
US2972074A (en) | Magnetic beam-controlling means for cathode ray tubes |