GB360699A - Television apparatus - Google Patents
Television apparatusInfo
- Publication number
- GB360699A GB360699A GB36049/30A GB3604930A GB360699A GB 360699 A GB360699 A GB 360699A GB 36049/30 A GB36049/30 A GB 36049/30A GB 3604930 A GB3604930 A GB 3604930A GB 360699 A GB360699 A GB 360699A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wave
- medium
- media
- cell
- light
- 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
- 239000000463 material Substances 0.000 abstract 3
- 230000006835 compression Effects 0.000 abstract 2
- 238000007906 compression Methods 0.000 abstract 2
- 230000003287 optical effect Effects 0.000 abstract 2
- 230000000644 propagated effect Effects 0.000 abstract 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 abstract 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000007689 inspection Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910052700 potassium Inorganic materials 0.000 abstract 1
- 239000011591 potassium Substances 0.000 abstract 1
- 229910052711 selenium Inorganic materials 0.000 abstract 1
- 239000011669 selenium Substances 0.000 abstract 1
- 230000035939 shock Effects 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
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/0128—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on electro-mechanical, magneto-mechanical, elasto-optic effects
- G02F1/0131—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on electro-mechanical, magneto-mechanical, elasto-optic effects based on photo-elastic effects, e.g. mechanically induced birefringence
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
- H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
360,699. Television. LOISEAU, L. M. J., 11, Avenue de la Grande Armee, Paris, and COMPANIE POUR LA FABRICATION DES COMPTEURS ET MATERIAL D'USINES A GAZ, 12, Place des Etats Unis, Montrouge, Seine, both in France. Nov. 29, 1930, No. 36049. Convention date, Nov. 29, 1929. Addition to 358,087. [Classes 39 (i) and 40 (iii).] In a television system as described in the parent Specification, in which the object or image is scanned by means of compression or shock waves in transparent media 2, 4, Fig. 2, the media serve to polarize the light so that only a single analyser or polarizer 3 is required. The optical system 6 for focusing the light on a photo-electric cell 5 is eliminated by combining the cell with the piezoelectric medium 4 as shown in Fig. 4. A gas-filled space 41 is enclosed by a wall 42 of the medium 34 and a potassium-coated cathode plate 36, the anode being in the form of a ring 38. The photoelectric cell may be replaced by a selenium cell, Fig. 5 (not shown). The two media may be combined into one, in which waves are propagated at right-angles, Figs. 6 and 7 (not shown). At the receiver, Fig. 9, the amplified signals are applied across electrodes 60, 61 on either side of a rare gas atmosphere, the electrode 60 being a metal coating on a piezo-electric medium 58. The field applied by a potentiometer 63 together with the piezoelectric potential produced by a compression wave 44 is just insufficient to produce a luminous discharge, which therefore depends directly on the signals. For colour reproduction three exciting frequencies are used in succession to produce differently coloured discharges. The waves through the media are propagated as shown in Fig. 10. When the wave 65 reaches such a position that it is traversed by polarized light from a source 70, light passes through an analyser 73 to a photoelectric cell 76. The amplified photo-electric current is applied to condenser plates 67 to start another wave. Reflection of the wave is prevented by a sheet of material, having a width a multiple of half the wave-length of the elastic wave in the material, disposed against the end of the medium. The Specification as open to inspection under Sect. 91 (3) (a) comprises also ensuring that all rays from one element of the object pass through the appropriate stressed area of the medium, by making the latter as thin as possible and employing optical systems of long focal length, and means are employed to correct the consequent distortion of the image. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR693285T | 1929-07-01 | ||
| FR38363T | 1929-11-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB360699A true GB360699A (en) | 1931-11-12 |
Family
ID=26182690
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB19952/30A Expired GB358087A (en) | 1929-07-01 | 1930-07-01 | Improvements in television methods and devices |
| GB36049/30A Expired GB360699A (en) | 1929-07-01 | 1930-11-29 | Television apparatus |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB19952/30A Expired GB358087A (en) | 1929-07-01 | 1930-07-01 | Improvements in television methods and devices |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1997371A (en) |
| DE (1) | DE714398C (en) |
| FR (2) | FR693285A (en) |
| GB (2) | GB358087A (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2649027A (en) * | 1947-02-18 | 1953-08-18 | Bell Telephone Labor Inc | Electrooptical system |
| US2622470A (en) * | 1948-01-07 | 1952-12-23 | Mueller Hans | Method of and system for indicating the light modulation in a transparent medium |
| US2707749A (en) * | 1949-06-21 | 1955-05-03 | Rines Robert Harvey | System of light beam communication |
| US2807799A (en) * | 1951-03-23 | 1957-09-24 | Fairchild Camera Instr Co | Light-modulator recording means |
| US2753763A (en) * | 1952-12-31 | 1956-07-10 | Du Mont Allen B Lab Inc | Electron optical filter |
| US2983786A (en) * | 1958-08-29 | 1961-05-09 | Hughes Aircraft Co | Optical scanning device |
| US3077813A (en) * | 1959-10-20 | 1963-02-19 | Budd Co | Stress-gauging devices |
| US3083262A (en) * | 1960-11-25 | 1963-03-26 | Electro Radiation Inc | Solid state camera apparatus and system |
| US4063281A (en) * | 1972-12-29 | 1977-12-13 | Research Corporation | Motion detection employing direct Fourier transforms of images |
| GB8313485D0 (en) * | 1983-05-16 | 1983-06-22 | King L H | Optical panel |
-
1929
- 1929-07-01 FR FR693285D patent/FR693285A/en not_active Expired
- 1929-11-29 FR FR38363D patent/FR38363E/en not_active Expired
-
1930
- 1930-06-25 US US463762A patent/US1997371A/en not_active Expired - Lifetime
- 1930-07-01 GB GB19952/30A patent/GB358087A/en not_active Expired
- 1930-07-02 DE DE1930714398D patent/DE714398C/en not_active Expired
- 1930-11-29 GB GB36049/30A patent/GB360699A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US1997371A (en) | 1935-04-09 |
| FR38363E (en) | 1931-05-30 |
| DE714398C (en) | 1941-12-04 |
| GB358087A (en) | 1931-10-01 |
| FR693285A (en) | 1930-11-18 |
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