HK46181A - Improvements in or relating to optical transducers - Google Patents
Improvements in or relating to optical transducersInfo
- Publication number
- HK46181A HK46181A HK46181A HK46181A HK46181A HK 46181 A HK46181 A HK 46181A HK 46181 A HK46181 A HK 46181A HK 46181 A HK46181 A HK 46181A HK 46181 A HK46181 A HK 46181A
- Authority
- HK
- Hong Kong
- Prior art keywords
- relating
- optical transducers
- transducers
- optical
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
- H04R23/008—Transducers other than those covered by groups H04R9/00 - H04R21/00 using optical signals for detecting or generating sound
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
- Light Guides In General And Applications Therefor (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3728677A GB1584048A (en) | 1977-09-07 | 1977-09-07 | Optical transducers |
Publications (1)
Publication Number | Publication Date |
---|---|
HK46181A true HK46181A (en) | 1981-09-25 |
Family
ID=10395248
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK46181A HK46181A (en) | 1977-09-07 | 1981-09-17 | Improvements in or relating to optical transducers |
Country Status (2)
Country | Link |
---|---|
GB (1) | GB1584048A (en) |
HK (1) | HK46181A (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2161341A (en) * | 1984-05-31 | 1986-01-08 | Christopher Buckingham | Laser microphone |
US4942767A (en) * | 1986-11-19 | 1990-07-24 | Massachusetts Institute Of Technology | Pressure transducer apparatus |
US5052228A (en) * | 1986-11-19 | 1991-10-01 | Massachusetts Institute Of Technology | Shear stress measuring device |
US4926696A (en) * | 1986-11-19 | 1990-05-22 | Massachusetts Institute Of Technology | Optical micropressure transducer |
JP3828755B2 (en) * | 2001-02-20 | 2006-10-04 | 株式会社ケンウッド | Displacement light quantity converter |
GB2522830A (en) * | 2013-04-28 | 2015-08-12 | Paul Alexander Hanton | Hypersonic, sound cancelling, laser accentuated application for tablet computer, television or other personal computer device |
-
1977
- 1977-09-07 GB GB3728677A patent/GB1584048A/en not_active Expired
-
1981
- 1981-09-17 HK HK46181A patent/HK46181A/en unknown
Also Published As
Publication number | Publication date |
---|---|
GB1584048A (en) | 1981-02-04 |
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