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BD blue light optical disk and system and method for manufacturing the BD blue light optical disk

A technology of Blu-ray discs and discs, which is applied in the manufacture of optical record carriers, optical recording/reproduction, and optical record carriers, etc., which can solve the problem of reduced thickness of the protective glue layer, uneven thickness of the outer ring of the disc, and adjacent Issues such as increased area thickness

Inactive Publication Date: 2006-04-12
HENAN KAIRUI DIGITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, after the protective glue is spin-coated, during the process of transporting the disc to the UV glue curing system and irradiating UV to cure the protective glue, due to the high viscosity of the glue, under the effect of the surface tension of the glue, the glue on the edge of the disc will be inward. Shrinkage, causing the thickness of the protective glue layer on the outermost ring of the disc to decrease, while the thickness of the adjacent area increases, resulting in uneven thickness on the outer ring of the disc

Method used

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  • BD blue light optical disk and system and method for manufacturing the BD blue light optical disk
  • BD blue light optical disk and system and method for manufacturing the BD blue light optical disk
  • BD blue light optical disk and system and method for manufacturing the BD blue light optical disk

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Embodiment 1

[0097] With reference to Fig. 5, Fig. 1 and Fig. 2, the method for manufacturing BD Blu-ray discs of the present invention can be explained more simply.

[0098] 1) First, the disc 6 with a thickness of 1.0 mm is injected by the injection molding machine 101, and the diameter of the central hole is 15 mm;

[0099] 2) The disk 6 is transported to the sputtering station 117 after passing through the conveyor belt 103. During the transmission process, the disk 6 is rapidly cooled by blowing deionized wind from above downwards. Send the disc 6 into the sputtering system 117 by the fourth transfer manipulator 118, and sputter a metal reflective layer on the information surface;

[0100] 3) The disc 6 having been sputtered with a metal reflective layer is transferred to the first protective glue spin coating system 107 by the fourth transfer manipulator 118, the second exchange turntable 121 and the first transfer manipulator 108;

[0101] 4) The disc 6 is placed on the lower glue ...

Embodiment 2

[0116] In the second embodiment of the present invention, the glue cap 10 adopts the structure shown in Fig. 3 (b), the glue cap 10 is positioned in cooperation with the center positioning pin 8 of the fixed disc 6 on the lower glue tray 7, and the rest of the process flow And the structure of the system is the same as above.

Embodiment 3

[0118] In Embodiment 3 of the present invention, the glue cap 11 adopts the structure shown in FIG. 3( c ), and the rest of the process flow and system structure are the same as above.

[0119] There is a blind hole in the center of the glue cap 11, which can be used to store glue when glue is applied, as a glue pool for supplying glue. When the disc 6 is rotated and the glue is spread out and flattened, the blind hole of the glue cap can continuously supply glue as a glue pool, which overcomes the ratio of the inner ring glue layer to the outer ring due to insufficient glue supply in the embodiment of the invention (1). Thin phenomenon, so that the thickness of the glue protective layer on the disc 6 is more uniform.

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Abstract

This invention discloses a BD blue disk including a baseboard, a protection layer on a surface of the baseboard and another protection layer set on the other relative surface of the baseboard, so the baseboard is between the two of them, which structure can reduce the change of the straightness and unevenness of the internal stress of the disk. This invention also discloses a system for manufacturing the BD blue disk and a method.

Description

technical field [0001] The present invention relates to a high-density optical disc and a system and method for manufacturing the high-density optical disc, especially an optical data carrier such as a BD Blu-ray disc and a system and method for manufacturing the BD Blu-ray disc. Background technique [0002] The optical storage medium has developed from CD to DVD, and now to BD Blu-ray disc. In order to increase the stored information capacity, the size of the information record must be continuously reduced, which requires that the wavelength of the used reading and recording light waves must be gradually shortened. The numerical aperture (NA) value of the reading objective lens is constantly increasing, so the wavelength used by the optical storage medium (disc) is from 780nm of CD to 650nm of DVD, and the blue laser with a wavelength of 405nm is used when developing to BD Blu-ray disc. The numerical aperture NA value of the objective lens ranges from 0.45 for CD to 0.6 fo...

Claims

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Application Information

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IPC IPC(8): G11B7/24G11B7/254G11B7/26G11B7/24056
Inventor 范继良杨明生
Owner HENAN KAIRUI DIGITAL
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