JPS6324600B2 - - Google Patents
Info
- Publication number
- JPS6324600B2 JPS6324600B2 JP12991881A JP12991881A JPS6324600B2 JP S6324600 B2 JPS6324600 B2 JP S6324600B2 JP 12991881 A JP12991881 A JP 12991881A JP 12991881 A JP12991881 A JP 12991881A JP S6324600 B2 JPS6324600 B2 JP S6324600B2
- Authority
- JP
- Japan
- Prior art keywords
- diaphragm
- core material
- frequency
- speaker
- sound pressure
- 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
- 239000011162 core material Substances 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- 239000011888 foil Substances 0.000 description 3
- 229920001230 polyarylate Polymers 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011256 inorganic filler Substances 0.000 description 2
- 229910003475 inorganic filler Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/04—Plane diaphragms
- H04R7/06—Plane diaphragms comprising a plurality of sections or layers
- H04R7/10—Plane diaphragms comprising a plurality of sections or layers comprising superposed layers in contact
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12991881A JPS5831696A (ja) | 1981-08-19 | 1981-08-19 | スピ−カ用平面振動板 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12991881A JPS5831696A (ja) | 1981-08-19 | 1981-08-19 | スピ−カ用平面振動板 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5831696A JPS5831696A (ja) | 1983-02-24 |
| JPS6324600B2 true JPS6324600B2 (nl) | 1988-05-21 |
Family
ID=15021613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12991881A Granted JPS5831696A (ja) | 1981-08-19 | 1981-08-19 | スピ−カ用平面振動板 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5831696A (nl) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0545796U (ja) * | 1991-11-13 | 1993-06-18 | 九州日立マクセル株式会社 | メガホン |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01258346A (ja) * | 1988-04-08 | 1989-10-16 | Hitachi Ltd | ブラウン管用電子銃 |
| US6031326A (en) * | 1997-04-01 | 2000-02-29 | Hitachi, Ltd. | Electron gun with electrode supports |
| US6507143B2 (en) | 2001-01-26 | 2003-01-14 | Hitachi, Ltd. | Cathode ray tube including an electron gun having specific relation between axial length of focus electrode and lens-screen distance |
-
1981
- 1981-08-19 JP JP12991881A patent/JPS5831696A/ja active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0545796U (ja) * | 1991-11-13 | 1993-06-18 | 九州日立マクセル株式会社 | メガホン |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5831696A (ja) | 1983-02-24 |
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