IE36726L - Diamond scanning element - Google Patents
Diamond scanning elementInfo
- Publication number
- IE36726L IE36726L IE721324A IE132472A IE36726L IE 36726 L IE36726 L IE 36726L IE 721324 A IE721324 A IE 721324A IE 132472 A IE132472 A IE 132472A IE 36726 L IE36726 L IE 36726L
- Authority
- IE
- Ireland
- Prior art keywords
- skid
- diamond
- engagement surface
- octahedral
- dodecahedral
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
- G11B3/44—Styli, e.g. sapphire, diamond
Landscapes
- Magnetic Record Carriers (AREA)
- Mechanical Coupling Of Light Guides (AREA)
- Radar Systems Or Details Thereof (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
1414002 Pressure scanning skid TED BILDPLATTEN AG AEG-TELEFUNKEN TELDEC 21 Sept 1972 [30 Sept 1971 19 Nov 1971] 43818/72 Heading G5R The wear on a diamond skid for pressure scanning topographic modulation in a groove of a video disc record is reduced by forming the skid such that the engagement surface is formed at least in part from the natural surface of a diamond crystal. The skid can be formed from octahedron 3 by using the flattened off peak, presenting a cubic surface (001), as the engagement surface flanked by octahedral surfaces (111) and (111) and with ends in the direction of relative movement between skid and record defined by octahedral surfaces (111) and (111). In use the engagement surface is inclined to the direction of relative motion. In the construction described with reference to Figs. 4a-4c (not shown) the engagement surface is a dodecahedral chamfer between two octahedral surfaces and in the Fig. 5, 6a and 6b arrangement (not shown) the engagement surface is a dodecahedral chamfer between two cubic surfaces. The diamond crystals can be natural or synthetic. Wear resistance can be chemically improved by doping the diamond with nitrogen or boron or by using a boron oxide protective layer or by a siloxal layer. In this last arrangement silicon is first diffused into the diamond and this is then oxidized to produce a silicon dioxide layer.
[GB1414002A]
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19712149439 DE2149439C3 (en) | 1971-09-30 | Diamond scanner runner | |
| DE19712158216 DE2158216C3 (en) | 1971-11-19 | Method for manufacturing a signal scanner with a guide element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE36726L true IE36726L (en) | 1973-03-30 |
| IE36726B1 IE36726B1 (en) | 1977-02-02 |
Family
ID=25761821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE1324/72A IE36726B1 (en) | 1971-09-30 | 1972-09-29 | Diamond scanning element and method of making it |
Country Status (17)
| Country | Link |
|---|---|
| JP (1) | JPS5620603B2 (en) |
| BE (1) | BE789464A (en) |
| CH (1) | CH553466A (en) |
| DD (1) | DD104404A1 (en) |
| DK (1) | DK137294C (en) |
| ES (1) | ES406731A1 (en) |
| FR (1) | FR2154658B1 (en) |
| GB (1) | GB1414002A (en) |
| HU (1) | HU171367B (en) |
| IE (1) | IE36726B1 (en) |
| IL (1) | IL40413A (en) |
| IT (1) | IT967104B (en) |
| NL (1) | NL7213164A (en) |
| NO (1) | NO139104C (en) |
| PL (1) | PL82042B1 (en) |
| RO (1) | RO60782A (en) |
| SE (1) | SE379440B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61185304A (en) * | 1985-02-13 | 1986-08-19 | Toyobo Co Ltd | Membrane separation apparatus |
| JPS63190606A (en) * | 1987-01-30 | 1988-08-08 | Hitachi Ltd | Hollow yarn membrane module |
| JPH0433945Y2 (en) * | 1987-12-11 | 1992-08-13 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3171175A (en) * | 1958-09-11 | 1965-03-02 | Fidelitone Inc | Method of bonding a stylus tip |
| DE2060317B2 (en) * | 1970-11-30 | 1973-03-08 | Licentia Patent Verwaltungs GmbH, 6000 Frankfurt | CARTRIDGES MADE OF DIAMOND, FOR GROOVE GUIDANCE AND SCANNING OR ONLY FOR GROOVE GUIDANCE |
-
0
- BE BE789464D patent/BE789464A/en unknown
-
1972
- 1972-09-01 IT IT28761/72A patent/IT967104B/en active
- 1972-09-15 ES ES406731A patent/ES406731A1/en not_active Expired
- 1972-09-21 GB GB4381872A patent/GB1414002A/en not_active Expired
- 1972-09-22 IL IL40413A patent/IL40413A/en unknown
- 1972-09-27 FR FR7234227A patent/FR2154658B1/fr not_active Expired
- 1972-09-28 PL PL1972157959A patent/PL82042B1/pl unknown
- 1972-09-28 NL NL7213164A patent/NL7213164A/xx not_active Application Discontinuation
- 1972-09-28 HU HU72TE00000676A patent/HU171367B/en unknown
- 1972-09-28 DD DD165921A patent/DD104404A1/xx unknown
- 1972-09-29 NO NO3497/72A patent/NO139104C/en unknown
- 1972-09-29 IE IE1324/72A patent/IE36726B1/en unknown
- 1972-09-29 SE SE7212602A patent/SE379440B/xx unknown
- 1972-09-29 RO RO72370A patent/RO60782A/ro unknown
- 1972-09-29 DK DK485972A patent/DK137294C/en active
- 1972-09-29 CH CH1423572A patent/CH553466A/en not_active IP Right Cessation
- 1972-09-30 JP JP9854872A patent/JPS5620603B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5620603B2 (en) | 1981-05-14 |
| FR2154658B1 (en) | 1979-02-23 |
| GB1414002A (en) | 1975-11-12 |
| SE379440B (en) | 1975-10-06 |
| NL7213164A (en) | 1973-04-03 |
| ES406731A1 (en) | 1976-02-01 |
| DD104404A1 (en) | 1974-03-05 |
| IL40413A (en) | 1975-06-25 |
| PL82042B1 (en) | 1975-10-31 |
| HU171367B (en) | 1977-12-28 |
| CH553466A (en) | 1974-08-30 |
| BE789464A (en) | 1973-01-15 |
| IE36726B1 (en) | 1977-02-02 |
| IT967104B (en) | 1974-02-28 |
| FR2154658A1 (en) | 1973-05-11 |
| JPS4843928A (en) | 1973-06-25 |
| DK137294C (en) | 1978-07-17 |
| RO60782A (en) | 1976-07-15 |
| NO139104C (en) | 1979-01-10 |
| IL40413A0 (en) | 1972-11-28 |
| NO139104B (en) | 1978-09-25 |
| DK137294B (en) | 1978-02-13 |
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