GB349083A - Improvements in or relating to wave responsive apparatus - Google Patents
Improvements in or relating to wave responsive apparatusInfo
- Publication number
- GB349083A GB349083A GB574630A GB574630A GB349083A GB 349083 A GB349083 A GB 349083A GB 574630 A GB574630 A GB 574630A GB 574630 A GB574630 A GB 574630A GB 349083 A GB349083 A GB 349083A
- Authority
- GB
- United Kingdom
- Prior art keywords
- class
- light
- resonator
- electric
- light applied
- 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
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D1/00—Demodulation of amplitude-modulated oscillations
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
- Lock And Its Accessories (AREA)
- Optical Communication System (AREA)
Abstract
349,083. Wireless receiving systems. ROBINSON, J., of British Radiostat Corporation, 29, George Street, Hanover Square, London. Feb. 20, 1930, No. 5746. [Class 40 (v).] Modulated electric wave signals are selectively received and detected by applying the incoming oscillation to a highly selective mechanical vibrating resonator, such as piezoelectric crystal, which controls a beam of light applied to a photo-electric cell to obtain an electrical output. The Figure shows a light source 14, polarizing devices 19, 20 and a piezo-electric crystal 13 controlling the beam of light applied to photoelectric cell 15. The distortion due to the high selectivity of the resonator may be corrected as described in Specification 344,869. Specification 325,232, [Class 40 (v), Wireless signalling &c.], is also referred to. The Provisional Specification describes the use of the light variations to produce a record upon a photographic film.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB574630A GB349083A (en) | 1930-02-20 | 1930-02-20 | Improvements in or relating to wave responsive apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB574630A GB349083A (en) | 1930-02-20 | 1930-02-20 | Improvements in or relating to wave responsive apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
GB349083A true GB349083A (en) | 1931-05-20 |
Family
ID=9801865
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB574630A Expired GB349083A (en) | 1930-02-20 | 1930-02-20 | Improvements in or relating to wave responsive apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB349083A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2141796A3 (en) * | 2008-07-02 | 2016-03-30 | Frank Schmidt | Receiver device, use of a receiver device, system, and also method for low-energie reception of data |
-
1930
- 1930-02-20 GB GB574630A patent/GB349083A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2141796A3 (en) * | 2008-07-02 | 2016-03-30 | Frank Schmidt | Receiver device, use of a receiver device, system, and also method for low-energie reception of data |
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