DE29512188U1 - Disc with information - Google Patents
Disc with informationInfo
- Publication number
- DE29512188U1 DE29512188U1 DE29512188U DE29512188U DE29512188U1 DE 29512188 U1 DE29512188 U1 DE 29512188U1 DE 29512188 U DE29512188 U DE 29512188U DE 29512188 U DE29512188 U DE 29512188U DE 29512188 U1 DE29512188 U1 DE 29512188U1
- Authority
- DE
- Germany
- Prior art keywords
- edge
- disc
- circle
- metal layer
- information
- 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 - Lifetime
Links
- 239000002184 metal Substances 0.000 claims description 12
- 239000004922 lacquer Substances 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 2
- 239000003973 paint Substances 0.000 claims 1
- 238000003801 milling Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
Description
AnmeldungRegistration
der Firmathe company
BOD Berlin Optical Disc GmbH.BOD Berlin Optical Disc GmbH.
Gustav-Meyer-Allee 25Gustav-Meyer-Allee 25
13355 Berlin13355 Berlin
Die Erfindung bezieht sich auf eine mittels eines Laserstrahls abtastbare Informationen aufweisende Scheibe, die auf einer Seite eine Metallschicht und darüber eine Schutzlackschicht trägt und einen vom Kreis mindestens teilweise abweichenden Rand aufweist.The invention relates to a disc containing information that can be scanned by means of a laser beam, which disc has a metal layer on one side and a protective lacquer layer on top of it and has an edge that at least partially deviates from the circle.
Scheiben mit unterschiedlichsten Rändern (z.B. Scheiben in Form eines Zahnrades oder eines menschlichen Kopfes) sind bekannt. Man stellt sie so her, daß man aus einer kreisrunden Scheibe, bei der die Metallschicht und die Lackschicht bis zum Rand dieser Scheibe gehen, die gewünschte Form ausfräst. Hierbei ergibt sich jedoch der Nachteil, daß mit der Zeit Feuchtigkeit zwischen Metallschicht und Scheibe eindringen kann, was dazu führt, daß die Informationen nicht mehr gelesen werden können. Hinzu kommt, daß die Metallschicht häufig beim Fräsen im Bereich des Randes abblättert.Discs with a wide variety of edges (e.g. discs in the shape of a gear or a human head) are known. They are manufactured by milling the desired shape out of a circular disc, where the metal layer and the lacquer layer extend to the edge of the disc. However, this has the disadvantage that over time moisture can penetrate between the metal layer and the disc, which means that the information can no longer be read. In addition, the metal layer often flakes off in the area of the edge during milling.
Der Erfindung liegt die Aufgabe zugrunde, Scheiben derart zu schaffen, daß Feuchtigkeit nicht zwischen Metallschicht undThe invention is based on the object of creating panes in such a way that moisture cannot enter between the metal layer and
DIPL.-ING. DIETER JANDER DR.-ING. "MANFRED* BONINGDIPL.-ING. DIETER JANDER DR.-ING. "MANFRED* BONING
PATENTANWÄLTEPATENT ATTORNEYS
Scheibe eindringen kann und die Metallschicht beim Fräsen nicht abblättert.disc and the metal layer does not flake off during milling.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Metallschicht einen kreisförmigen Rand hat und daß der Radius dieses Kreises kleiner als der Abstand des dem Kreismittelpunkt am nächsten gelegenen Punktes des Randes von dem Kreismittelpunkt ist.This object is achieved according to the invention in that the metal layer has a circular edge and that the radius of this circle is smaller than the distance of the point of the edge closest to the center of the circle from the center of the circle.
Auf diese Weise wird das Eindringen von Feuchtigkeit zwischen Metallschicht und Scheibe und das Abblättern der Metallschicht beim Fräsen verhindert.This prevents moisture from penetrating between the metal layer and the disc and prevents the metal layer from flaking off during milling.
Weitere Einzelheiten der Erfindung ergeben sich aus der einzigen Figur der Zeichnung. Darin ist mit 1 eine Scheibe bezeichnet, die mittels eines Lasers abtastbare Informationen aufweist. Ein Kreis 2 stellt den Rand einer Metallschicht dar. Im übrigen zeigt die Scheibe einen Kopf mit Hut, wobei der Rand 3 der Scheibe der Umrißlinie dieses Bildes entspricht. Der Punkt 4 des Randes 3 hat vom Mittelpunkt 5 den kürzesten Abstand. Dieser Abstand ist erfindungsgemäß größer als der Radius des Kreises 2.Further details of the invention can be seen from the single figure in the drawing. In it, 1 denotes a disk that has information that can be scanned using a laser. A circle 2 represents the edge of a metal layer. The disk also shows a head with a hat, with the edge 3 of the disk corresponding to the outline of this image. Point 4 of the edge 3 is the shortest distance from the center 5. According to the invention, this distance is greater than the radius of the circle 2.
DJ:SS:BJDJ:SS:BJ
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29512188U DE29512188U1 (en) | 1995-07-21 | 1995-07-21 | Disc with information |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29512188U DE29512188U1 (en) | 1995-07-21 | 1995-07-21 | Disc with information |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE29512188U1 true DE29512188U1 (en) | 1995-09-28 |
Family
ID=8011111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE29512188U Expired - Lifetime DE29512188U1 (en) | 1995-07-21 | 1995-07-21 | Disc with information |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE29512188U1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999016062A1 (en) * | 1997-09-24 | 1999-04-01 | Siemens Aktiengesellschaft | Method for producing an optical storage disc and appropriate cd-r disc blank for the production thereof |
-
1995
- 1995-07-21 DE DE29512188U patent/DE29512188U1/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999016062A1 (en) * | 1997-09-24 | 1999-04-01 | Siemens Aktiengesellschaft | Method for producing an optical storage disc and appropriate cd-r disc blank for the production thereof |
| US6447870B1 (en) | 1997-09-24 | 2002-09-10 | Siemens Aktiengesellschaft | Optical storage disk blank and method for manufacturing the disk blank |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0253089A1 (en) | Multi-layer document | |
| EP1275084A1 (en) | Pattern | |
| DE69623044T2 (en) | SURFACE PATTERN | |
| DE29512188U1 (en) | Disc with information | |
| EP0856295A2 (en) | Dental grinding tool | |
| DE2555644C2 (en) | Arrangement with an elongated shaft supported on bearings | |
| DE2519342B2 (en) | DEVICE FOR THE DISPLAY OF NUMBERS OR LETTERS ON TIMEPIECES | |
| DE19637918C2 (en) | Medical x-ray facility | |
| WO1997004450A1 (en) | Method of producing an information-bearing disc which can be scanned by a laser beam, and disc produced thereby | |
| DE102020133753B4 (en) | Device for representing relationships between objects and at least one subject | |
| DE8808558U1 (en) | Template for creating cutouts in straps | |
| DE820105C (en) | Color sample book | |
| DE2245408C3 (en) | Phase plate for generating Fourier transform holograms and method for manufacturing such a phase plate | |
| DE8531475U1 (en) | Display device for tennis games | |
| DE102021002676A1 (en) | Variable watch case with casing ring and multi-layer base | |
| DE69522949T2 (en) | KREISELKULTIVATORGERÄT | |
| DE3934096A1 (en) | Key with emblem carrier in head zone has lighting unit - and battery that forms hologram by combination of base layer and protective layer of enamel or polyurethane | |
| DE3929950A1 (en) | Hours display for analogue timepiece - uses two offset hours hands for simultaneous display of different times | |
| DE102016008021A1 (en) | Learning aid for learning the multiplication table | |
| DE2126831A1 (en) | Method and device for tuning the accidentals of any musical scale and the associated chords when specifying a certain root note | |
| AT393709B (en) | Wire meshing, in particular decorative meshing for fences | |
| DD236807A1 (en) | ARRANGEMENT FOR PULSE EFFICIENCY IN SPEED MEASUREMENT WITH OPTPELECTRONIC MEANS | |
| DE8912156U1 (en) | Key with emblem carrier in the head area | |
| DE2553497A1 (en) | Handle for glass doors - has base plate with recessed cover and sight held down by orifice plate | |
| DE29610076U1 (en) | Poultry shears |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R207 | Utility model specification |
Effective date: 19951109 |
|
| R156 | Lapse of ip right after 3 years |
Effective date: 19990501 |