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Optical disk substrate and optical disk

A technology for optical discs and substrates, applied in the direction of optical record carriers, recording layers, etc., can solve the problems of unqualified products, increased complexity and difficulty, and the inability to effectively reduce production costs, etc., to achieve the reduction of unqualified products, perfect optical characteristics, The effect of smooth filling

Inactive Publication Date: 2006-11-22
PRINCO CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The substrate 14 and the compensating sheet 16 of the conventional optical disc 1 need to be formed separately and then laminated in alignment, which increases the complexity and difficulty of production, easily produces substandard products, and makes the production cost unable to be effectively reduced.

Method used

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  • Optical disk substrate and optical disk
  • Optical disk substrate and optical disk
  • Optical disk substrate and optical disk

Examples

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Embodiment Construction

[0020] The optical disc substrate and the optical disc according to preferred embodiments of the present invention will be described below with reference to related drawings, wherein the same elements will be described with the same reference symbols.

[0021] The disc substrate 2 of the preferred embodiment of the present invention is as Figure 2A and Figure 2B As shown, it includes a ring-shaped base plate 21 and a protruding portion 22 . The annular substrate 21 is provided with a support portion 211 near the inner side and a recording portion 212 near the outer side. The recording portion 212 has a recording surface 212a on which a coating layer described later is formed. The protruding part 22 overlaps the supporting part 211 and has a supporting surface 22a. The thickness of the supporting part 211 of the annular substrate 21 and the protruding part 22 after overlapping is between 0.66 mm and 1.6 mm, so that when the disc is inserted into the disc drive, The optical...

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Abstract

The disclosed CD substrate comprises: a ring substrate with an inner side support part and an outer record part with a record surface, and a projecting part overlaid to the support part with total thickness larger than the record part and included some gaps on edge toward axial center. This invention can reduce cost.

Description

【Technical field】 [0001] The invention relates to an optical disc substrate and an optical disc, in particular to an optical disc substrate and an optical disc which are easy to manufacture and can reduce costs. 【Background technique】 [0002] Optical discs can store data in various formats, including image data, computer digital image files and general text files. Optical discs are the most convenient storage media in the new generation optical storage market, and can be used in a wide range of applications, such as library collection, data backup, electronic publishing, image data storage, and personal medical record management. [0003] Please refer to Figure 1A , which is a top view of a conventional optical disc 1 . Conventional optical disc 1 such as Figure 1A As shown, it is in a ring shape, and is divided into an inner support portion 11 and an outer recording portion 12 . The detailed structure of conventional optical disc 1, such as Figure 1B As shown, a subs...

Claims

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Application Information

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IPC IPC(8): G11B7/2403
Inventor 朱亦麟
Owner PRINCO CORP