CN2577400Y

CN2577400Y - Ultrathin optical disc storage medium

Info

Publication number: CN2577400Y
Application number: CN02289187U
Authority: CN
Inventors: 王豪; 刘建民; 吴大林
Original assignee: Polystar Digidisc Co Ltd
Current assignee: Polystar Digidisc Co Ltd
Priority date: 2002-08-16
Filing date: 2002-12-12
Publication date: 2003-10-01
Anticipated expiration: 2012-12-12

Abstract

The utility model provides an ultra-thin optical disk. The utility model comprises a data recording zone (1) and an optical disk clamping zone (2), wherein, the diameter of the optical disk is 120 mm or 80 mm, the range of the thickness of the data recording zone (1) is from 0.55 mm to 0.85 mm, the thickness of the optical disk clamping zone (2) is 0.1 mm-0.6 mm larger than other parts of the optical disk, and the range of the thickness of the optical disk clamping zone (2) is from 0.65 mm to 1.2 mm. The utility model can provide sufficient information storage space, satisfy application requirements of the existing optical disk, and reduce production cost through reducing material and simplifying technology.

Description

A kind of ultrathin optical disk medium

Technical field

The utility model relates to a kind of optical storage media, particularly a kind of ultrathin CD.

Background technology

Present CD generally adopts the circular dimension of standard, and promptly all disc external diameters are necessary for 120mm or 80mm, and the diameter of center pit is 15mm, thickness 1.2mm.But this standard-sized disc is bigger, can not adapt to the development trend requirement of the miniaturization of present mobile Internet and hand-held consumer-elcetronics devices application gradually.The miniature digital storage equipment that Internet that develops rapidly and hand-held electronic equipment application requirements provide a kind of miniaturization, be easy to carry about with one comes corresponding to the numerical information of explosive growth and enlarges the optical disc applications field gradually.

Content of the present invention

For overcome above existing compact disk standards size big, shortcoming such as be unfavorable for carrying, the utility model provides a kind of ultrathin CD, a kind of ultrathin optical disk medium, comprise data recorded area 1 and CD clamp area 2, the thickness that it is characterized in that described data recorded area 1 is 0.55mm-0.85mm, the thickness of described CD clamp area 2 is greater than the thickness of described data recorded area, but is less than or equal to 1.2mm.

According to a preferred embodiment of the present utility model, the thickness of the data recorded area 1 of described ultrathin optical disk medium is 0.6mm.The thickness of described CD clamp area is 0.65mm-1.2mm.

According to the described CD clamp area of another preferred embodiment of the present utility model is 1.00mm-1.2mm.Between described data recording district 1 and the described CD clamp area 2 spacing ring 3 is arranged.

The described data recording of ultrathin optical disk medium of the present utility model district 1 comprises one deck optical record medium.

According to the utility model, the ultrathin CD that is provided has reduced the thickness of data storage area when guaranteeing the information stores space that provides enough.In addition, by a clamp area 2 bigger than the thickness of described data storage area is provided,, satisfy the needs of using with adaptive with existing CD drive.The optical disk of attenuate can also reduce materials and reduce production costs.

Brief description of drawings

Fig. 1 (a) has schematically illustrated ultrathin compact disk structure described in the utility model;

Fig. 1 (b) is that the A-A of Fig. 1 (a) is to cut-open view;

Fig. 2 (a) has schematically illustrated ultrathin compact disk structure described in the utility model

Fig. 2 (b) is that the A-A of Fig. 2 (a) is to cut-open view;

Fig. 3 (a) has schematically illustrated the duty when existing CD is placed on Disc player or the CD drive.

Fig. 3 (b) has schematically illustrated the duty when ultrathin CD described in the utility model is placed on Disc player or the CD drive.

Embodiment

Further describe the utility model below in conjunction with accompanying drawing.

Referring to Fig. 1 (a) and Fig. 1 (b), it shows existing CD, no matter is CD class or DVD class, and existing CD includes data recorded area 1 and CD clamp area 2, and the consistency of thickness of whole disc is 1.2mm.The diameter of CD is 120mm or 80mm.

Referring to Fig. 2 (a) and Fig. 2 (b), it shows ultrathin CD provided by the utility model.The same with prior art, ultrathin CD provided by the utility model comprises data recorded area 1 and CD clamp area 2, and the diameter of center pit is the 15mm of standard, and cd diameter is 120mm or 80mm.According to the utility model, the thickness t of described data recorded area 1 is that 0.55mm is to 0.85mm.For with existing Disc player and CD drive compatibility, the thickness t 1 of the CD clamp area 2 of CD described in the utility model should be greater than the thickness of data recorded area but is less than or equal to 1.2mm.Between described data recording district 1 and the described CD clamp area 2 spacing ring 3 is arranged preferably.

Referring to Fig. 3 (a), the clamp structure on existing Disc player or the CD drive mainly is made up of clamper 13, rotating disc 12, core rack 11 and laser head 10.CD 9 is placed on the rotating disc 12, and clamper 13 is clipped in the middle CD 9 by the magnetic attraction irony rotating disc 12 of magnet ring.The spacing that has about 0.8mm-1mm in the absence of CD between the two.Laser head 10, rotating disc 12 and core rack 11 are fixing as a whole, load and unload CD by moving up and down of support.No matter existing CD is that the CD class or the thickness of DVD class are 1.2mm.

Referring to Fig. 3 (b), when ultrathin CD provided by the utility model uses existing Disc player or CD drive work, the thickness of the CD clamp area 2 of the ultrathin CD 9 ' that provides when the utility model is 1mm-1.2mm, when the thickness of data recorded area 1 is 0.6mm, owing between clamper 13 and the rotating disc 12 certain elasticity spacing is arranged, so reading of laser head 10 apart from fully identical with standard DVD CD, therefore ultrathin CD 9 ' can be directly applied for existing Disc player and CD drive, and need not do any change; The thickness of the CD clamp area 2 of the ultrathin CD 9 ' that provides when the utility model is during at 0.65mm-1mm, because the spacing between clamper 13 and the rotating disc 12 is excessive, make ultrathin CD 9 ' to be fixed between the two well, thereby cause the data on the ultrathin CD 9 ' to be read by laser head 10.In order to address the above problem, then need to increase the thickness of lower surface 14 of the clamper 13 of Disc player or CD drive, perhaps reduce spacing between clamper 13 and the rotating disc 12 by changing distance that core rack 11 moves up and down, with guarantee fixing and laser head 10 that ultrathin CD 9 ' can be stabilized to read distance complete identical with standard DVD CD.

The data recording district 1 of the ultrathin optical disk medium that the utility model provides adopts existing DVD or EVD technology canned data.Can keep like this and the compatibility of existing DVD, EVD product.The beneficial effect of ultrathin CD provided by the utility model is, compare with existing CD, under the prerequisite that does not reduce memory capacity, ultrathin CD of the present utility model has little, in light weight, the portable advantage of size, if produce in enormous quantities, can also save production cost.

Claims

1. ultrathin optical disk medium, comprise data recorded area (1) and CD clamp area (2), the thickness that it is characterized in that described data recorded area (1) is 0.55mm-0.85mm, and the thickness of described CD clamp area (2) is greater than the thickness of described data recorded area, but is less than or equal to 1.2mm.

2. ultrathin optical disk medium according to claim 1, the thickness that it is characterized in that described data recorded area (1) is 0.6mm.

3. ultrathin optical disk medium according to claim 1, the thickness that it is characterized in that described CD clamp area is 0.65mm-1.2mm.

4. ultrathin optical disk medium according to claim 3 is characterized in that described CD clamp area is 1.00mm-1.2mm.

5. according to the described ultrathin optical disk medium of any one claim of claim 1 to 4, it is characterized in that described data recording district (1) comprises one deck optical record medium.

6. according to the described ultrathin optical disk medium of any one claim of claim 1 to 4, it is characterized in that between described data recording district (1) and the described CD clamp area (2) spacing ring (3) being arranged.