CN100430687C

CN100430687C - Test device and test method for optical information storage media

Info

Publication number: CN100430687C
Application number: CNB2005100754368A
Authority: CN
Inventors: 赖昭平
Original assignee: Prodisc Technology Inc
Current assignee: Prodisc Technology Inc
Priority date: 2005-06-01
Filing date: 2005-06-01
Publication date: 2008-11-05
Anticipated expiration: 2025-06-01
Also published as: CN1873369A

Abstract

The present invention relates to a detecting device for an optical information storage medum, which is used for detecting an optical information storage medium and comprises a light source, a detecting plate and a detector, wherein the detecting plate and the light source are correspondingly arranged; the optical information storage medium is arranged between the light source and the detecting plate; the light source is used for emitting light rays towards the optical information storage medium, which is convenient for form a shadow on the detecting plate; the detector is used for detecting the shadow. The present invention also discloses a detecting method of the optical information storage medium. The detecting device and the detecting method of the present invention can really improve the time consumption and the inconvenience of artificial detection, can lift the number of detection, and can also improve the correct rate of the detection. Accordingly, product quality is gained.

Description

The pick-up unit of media for storing optical information and detection method thereof

Technical field

The present invention is about a kind of pick-up unit and detection method thereof of media for storing optical information, but especially refers to the pick-up unit and the detection method thereof on mist limit, a kind of fast detecting media for storing optical information reflection horizon.

Background technology

See also Fig. 1 and Fig. 2, be a kind of known sputter machine 60, include a target 62, one interior light shield 64 substantially, and an outer light shield 66.The dealer is after forming a recording layer 72 on the substrate 71, the semi-manufacture that are about to this media for storing optical information are placed in the sputter machine 60, and reflection horizon 73 diameter and shape are decided by inside and

outside light shield

64,66 to utilize target 62 sputter on recording layer 72 to form a reflection horizon 73 (as shown in Figure 2).

Yet, inside and

outside light shield

64,66 contacts part with the media for storing optical information semi-manufacture, easy artificial bump because of sputter machine 60 High Temperature High Pressure that produces or when operating, and cause the consume (shown in Fig. 1 dotted line), make that the corner of inside and

outside light shield

64,66 is no longer rectangular, and with the semi-manufacture of media for storing optical information one slit is arranged, when making sputter partly metal enter the slit, and 73 peripheries produce mist limits 74 in the reflection horizon.

After the sputter process, the dealer must add a protective seam 76 on reflection horizon 73, and it enters media for storing optical information 70 in order to prevent aqueous vapor, also has the function of protection simultaneously, and can avoid being subjected to the extraneous collision damage that causes.For protective seam 76 firmly is set, the periphery circle in reflection horizon 73 to the periphery circle of substrate 71 need have a preset distance, so the dealer needs the size on mist limit 74 is needed strictly keyholed back plate.

At present, the mode that the dealer detects mist limit 74 sizes is positioned over a rule 78 on the media for storing optical information, utilizes a magnifier again, with the distance (as shown in Figure 3) of the careful interpretation mist of naked eyes limit 74 to substrate periphery circle.

Yet, suitable labor intensive of this detection method and time, also cause erroneous judgement because of human negligence easily, and, when the dealer is with this method detected light information Storage Media at present, in the mode of examination at random, save human cost, be not all process detections of all media for storing optical information, influence the quality that the dealer produces media for storing optical information thus really, so improved necessity is arranged.

Summary of the invention

Because above-mentioned problem, pick-up unit and the detection method thereof of purpose of the present invention for a kind of media for storing optical information is provided, it can be fast and detected light information Storage Media correctly.

For reaching above-mentioned purpose, according to the pick-up unit and the detection method thereof of media for storing optical information of the present invention, in order to detect a media for storing optical information, wherein this media for storing optical information has a reflection horizon at least, and pick-up unit comprises: a light source; One check-out console, it is relative with light source and establish, media for storing optical information is arranged between light source and the check-out console, when light source when media for storing optical information emits beam, form a shade on this check-out console, this shade is corresponding with this reflection horizon; And a detecting device, the distance of its interpretation shade.Detection method comprises: place a media for storing optical information between a light source and a check-out console; Light source emits beam towards media for storing optical information, and to form a shade on check-out console, this shade is corresponding with this reflection horizon; And the distance of interpretation shade.

From the above, because of according to the pick-up unit and the detection method thereof of a kind of media for storing optical information of the present invention,, and then improve the accuracy that detects with mode detected light information Storage Media fast.

Description of drawings

Fig. 1 is known sputter device synoptic diagram;

Fig. 2 is the part cut-open view of known media for storing optical information;

Fig. 3 is known media for storing optical information detection method synoptic diagram;

Fig. 4 is the side view of the pick-up unit of optical data media of the present invention,

Fig. 5 is the synoptic diagram of the pick-up unit of optical data media of the present invention; And

Fig. 6 is the process flow diagram of the detection method of optical data media of the present invention.

Symbol description among the figure:

1 pick-up unit

10 light sources

12 light

20 check-out consoles

22 scales

28 shades

281 mist limits

30 support members

40 detecting devices

42 image units

44 detecting units

46 output units

50 media for storing optical information

52 substrates

53 memory layers

54 reflection horizon

56 protective seams

Embodiment

Hereinafter with reference to relevant drawings, pick-up unit and detection method thereof according to the media for storing optical information of preferred embodiment of the present invention are described.

Seeing also Fig. 4, the pick-up unit 1 of media for storing optical information of the present invention comprises-light source 10, a check-out console 20 and a detecting device 40.The pick-up unit 01 of media for storing optical information of the present invention is in order to detected light information Storage Media 50; its general reference CD, CD-R, CD-RW, DVD, DVD-R, DVD-RW etc.; it includes a substrate 52; one is located at the memory layer 53 on the substrate 52; one is located at the reflection horizon 54 on the memory layer 53, and a protective seam 56 of being located on the reflection horizon 54.

Light source 10, it can give out some parallel rayss 12.Certainly, the present invention does not limit the form of light source, also can adopt pointolite, and have identical effect.

Check-out console 20, itself and light 10 are oppositely arranged, and check-out console 20 is provided with plural scale 22 (as shown in Figure 5).

As shown in Figure 4, the pick-up unit of media for storing optical information in the present embodiment, more comprise the flat board that a support member 30 is made for transparent material, it is arranged between light source 10 and the check-out console 20, and the light 12 penetrable support members 30 of light source 10 make media for storing optical information 50 can be placed on the support member 30, certainly, support member 30 also can be two anchor clamps that are oppositely arranged, and media for storing optical information 50 can be held between light source 10 and the check-out console 20.

Please be simultaneously with reference to Fig. 4 and Fig. 5, detecting device 40 is in order to the distance of interpretation shade.In the present embodiment, detecting device 40 has an image unit 42, the detecting unit 44 that mutual telecommunication links, and an output unit 46.In addition, detecting device also can be tester's naked eyes.

When media for storing optical information 50 is placed on the support member 30, make light source 10 give out light 12 parts and blocked that so be convenient to produce a shade 28 (as shown in Figure 5) on the check-out console 20, at this moment, detecting device 40 just can detect shade 28.

See also Fig. 4 to Fig. 6, below, the detection method of media for storing optical information of the present invention is described in detail in detail:

See also Fig. 6, be detection method process flow diagram of the present invention, at first, media for storing optical information 50 is placed on the support member 30.

When light source 10 emits beam 12 the time towards media for storing optical information 50 because substrate 52 and protective seam 56 light-permeables, and reflection horizon 54 light tight so, make to form a shade 28 on the check-out console 20.And the shadow color of Zhou Yuan is lighter outside the shade 28, and this is the zone that mist limit 281 forms.

In the present embodiment, utilize the image unit 42 of detecting device 40 to capture the image of shade 28, and detecting unit 44 receives images, and judge by the scale on the check-out console 20 22 whether image exceeds a default value.

At last, output unit 46 is with result's output of detecting unit 44 judgements.When judged result when exceeding default value, represent that then the mist limit in reflection horizon 54 exceeds admissible scope, be a defective products; Otherwise when judged result during less than default value, the mist limit size of then representing reflection horizon 54 is in admissible scope.This default value can be set up on their own by the dealer, exceeds default value and represents that the mist limit 281 of media for storing optical information is excessive, and make that the periphery circle in reflection horizon 54 is not enough to the distance of the periphery circle of substrate 52, and protective seam 56 firmly is arranged on the substrate 52.Thus, can promote the quality of media for storing optical information 50 really.

In addition, when detecting device was tester's naked eyes, it utilized check-out console 20 high scales 22 to detect the scope of shade 28, similarly, can reach the purpose of detection of reflected layer sputter quality quality.

In sum, the pick-up unit of media for storing optical information of the present invention and detection method thereof with the mode detected light information Storage Media of quick and robotization, are compared the detection technique that prior art is used, detection light source is incident upon the shade that the reflection horizon produces, and can reduce the error of artificial judgment.If add detecting device, then can improve the consuming time of manual detection and inconvenience really, not only can promote the quantity of detection, more can improve the accuracy of detection, and then promote product quality.

The above only is an illustrative, but not is restricted person.Anyly do not break away from spirit of the present invention and category, and, all should be contained in the described claim scope its equivalent modifications of carrying out or change.

Claims

1. the pick-up unit of a media for storing optical information, it is in order to detect a media for storing optical information, and wherein this media for storing optical information has a reflection horizon at least, it is characterized in that, and this pick-up unit comprises:

One light source;

One check-out console, it is relative with light source and establish, this media for storing optical information is arranged between this light source and this check-out console, when this light source when this media for storing optical information emits beam, form a shade on this check-out console, this shade is corresponding with this reflection horizon; And

One detecting device, the distance of its this shade of interpretation.

2. the pick-up unit of media for storing optical information as claimed in claim 1 is characterized in that, has plural scale on this check-out console.

3. the pick-up unit of media for storing optical information as claimed in claim 1 is characterized in that, this detecting device comprises:

One image unit, it captures an image of this shade;

One detecting unit, it receives this image and judges whether this image exceeds a default value; And

One output unit is exported the result that this detecting unit is judged.

4. the pick-up unit of media for storing optical information as claimed in claim 1 is characterized in that, the light that this shade blocks this light source by a reflection horizon of this media for storing optical information is formed.

5. the pick-up unit of media for storing optical information as claimed in claim 1 is characterized in that, more includes a support member, and this media for storing optical information is placed in this support member.

6. the detection method of a media for storing optical information is characterized in that, comprises the following step:

Place a media for storing optical information between a light source and a check-out console, wherein this media for storing optical information has a reflection horizon at least,

This light source emits beam towards this media for storing optical information, and to form a shade on this check-out console, this shade is corresponding with this reflection horizon; And

The distance of this shade of interpretation.

7. the detection method of media for storing optical information as claimed in claim 6 is characterized in that, has plural scale on this check-out console.

8. the detection method of media for storing optical information as claimed in claim 6 is characterized in that, this shadow distance step of interpretation comprises:

Capture the image of this shade;

Judge whether this image exceeds a default value; And

Export the result that this detecting unit is judged.

9. the detection method of media for storing optical information as claimed in claim 6 is characterized in that, the light that this shade blocks this light source by a reflection horizon of this media for storing optical information is formed.