CN201741388U - Grating adjustment mechanism for laser head - Google Patents
Grating adjustment mechanism for laser head Download PDFInfo
- Publication number
- CN201741388U CN201741388U CN2010202877335U CN201020287733U CN201741388U CN 201741388 U CN201741388 U CN 201741388U CN 2010202877335 U CN2010202877335 U CN 2010202877335U CN 201020287733 U CN201020287733 U CN 201020287733U CN 201741388 U CN201741388 U CN 201741388U
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- CN
- China
- Prior art keywords
- grating
- reversing frame
- mount pad
- laser head
- installation seat
- 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.)
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Abstract
The utility model relates to the technical field of a laser head, specifically to a grating adjustment mechanism for the laser head, comprising an installation seat, a grating and a rotating rack; the front end of the rotating rack is provided with a containing space; the rear end of the rotating rack is provided with laser holes communicated with the containing space; the external surface of the rotating rack is provided with a rotating guide groove; the grating is internally hidden in the containing space of the rotating rack; the rear end of the installation seat is provided with the containing space; the rotating rack is rotationally arranged in the containing space; the front end of the installation seat is provided with leaking holes which cause the grating to be corresponding to an electron beam splitter; the side wall of the installation seat is provided with an adjustment groove; the installation seat is installed on a substrate; based on optical axes of different optical discs, the grating is finely adjusted by left and right moving the installation seat so as to cause the grating to be corresponding to the optical discs; the counter stress of different compact discs is improved; the data reading and the record sensitivity are improved; the optical performances of reading or recording the large volume data on the optical discs are improved; the capacity is small without occupying the space; the use operation is convenient.
Description
Technical field:
The utility model relates to the laser head technical field, refers in particular to laser head grating adjusting mechanism.
Background technology:
Laser head assembly is to utilize optical characteristics, reads or write down the device of data on the CD that comprises CD, DVD and BD.This laser head assembly is in order to read or record data are provided with grating, and grating is adjusted by revolution, separates the operation of laser.
Can read or write large-capacity data and the densification that becomes along with CD day by day develops into, grating needs to carry out the performance that trickle adjustment could corresponding different discs.In addition, the optical axis of CD, DVD and BD is all different, so for effective correspondence, just grating must can be realized in trickle adjustment.
But laser head assembly is relatively more difficult to outside bulked volume, and in order to read or write down high density compact disc, its inner structure is very restricted, and makes that the trickle adjustment of grating is very difficult.That is, because of the size of optical design is not enough far away apart from the space of needs, so be difficult to utilize adjusting mechanism to carry out trickle adjustment, and the corresponding ability of corresponding multiple CD significantly descends, difficulty during to the data read of densification or record.If do not carry out the small adjustment of grating, because of the corresponding ability drop of CD, the mistake more than 30% can appear in data read and record.
The utility model content:
The purpose of this utility model be exactly the deficiency that exists at prior art and the trickle adjustment grating of a kind of energy is provided, guarantee can corresponding different discs laser head grating adjusting mechanism.
To achieve these goals, the technical solution adopted in the utility model is: laser head grating adjusting mechanism, it includes mount pad, grating and reversing frame, the front end of reversing frame offers accommodation space, the rear end of reversing frame offers the laser hole that is communicated with accommodation space, the reversing frame outside surface offers the revolution gathering sill, grating is built in the accommodation space of reversing frame, the rear end of mount pad is provided with receiving space, reversing frame rotates and is arranged in the receiving space, the front end of mount pad offer make grating corresponding with electron beam splitter spill the hole, the sidewall of mount pad is provided with the adjustment groove.
The front end of described reversing frame forms annular revolution flange, and the revolution flange is plugged in and spills in the hole.
Described accommodation space offers the auxiliary position of taking in.
Described reversing frame is a circular configuration.
Described mount pad includes left and right sides wall, bottom panel and the front panel that surrounds receiving space mutually.
The rear end of described mount pad is provided with spring holder.
The utility model beneficial effect is: the utility model includes mount pad, grating and reversing frame, the front end of reversing frame offers accommodation space, the rear end of reversing frame offers the laser hole that is communicated with accommodation space, the reversing frame outside surface offers the revolution gathering sill, grating is built in the accommodation space of reversing frame, the rear end of mount pad is provided with receiving space, reversing frame rotates and is arranged in the receiving space, the front end of mount pad offer make grating corresponding with electron beam splitter spill the hole, the sidewall of mount pad is provided with the adjustment groove, mount pad is installed on the substrate, according to the optical axis of different discs, can come trickle adjustment grating by the move left and right mount pad, make grating corresponding with CD, raising is to the counter stress of different discs, data read and record susceptibility height, improve read or recording disk on the optical property of Large Volume Data, and volume is little, do not take up room, use easy to operate.
Description of drawings:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a decomposing schematic representation of the present utility model;
Fig. 3 is a structural representation of using laser head of the present utility model.
Embodiment:
Below in conjunction with accompanying drawing the utility model is further described, sees shown in Fig. 1～3, the utility model includes mount pad 2, grating 3, reversing frame 1, spring holder 4.Grating 3 reads or writes down and comprises CD, DVD and the data of BD on interior CD, and mount pad 2 is installed on the substrate 7, and the rear of reversing frame 1 is provided with laser diode 6, and the place ahead of mount pad 2 is provided with electron beam splitter 5.
The front end of reversing frame 1 offers accommodation space 11, and grating 3 is built in the accommodation space 11 of reversing frame 1, and the rear end of reversing frame 1 offers the laser hole 12 that is communicated with accommodation space 11, makes the light of laser diode 6 send to grating 3 by laser hole 12.According to the relation of grating 3 revolutions and separation laser, reversing frame 1 is that revolution is driven best circular configuration, and reversing frame 1 circumferential surface offers revolution gathering sill 13.
The utility model can utilize the die casting of zinc material to make reversing frame 1 and mount pad 2, and the reversing frame 1 of zinc material and mount pad 2 not only can satisfy as baby needs or the intensity that possesses like this, can also improve permanance.
The front end of reversing frame 1 forms annular revolution flange 14, revolution flange 14 is plugged in and spills in the hole 25, can prevent reversing frame 1 double swerve in turning course, can improve counter stress since like this, make record and read susceptibility to maintain best state always different discs.
The rear end of mount pad 2 is provided with mount pad 2 is close to spring holder 4 on the substrate 7, can prevent to cause low, the optical property reduction of the corresponding ability of CD because of mount pad 2 is close to the mismachining tolerance that causes on the substrate 7, reduce the cumulative errors that goes up the 2 front and back generation of note mount pad with this, improve corresponding ability different discs.
The utility model can make grating 3 corresponding with CD by move left and right mount pad 2 trickle adjustment gratings 3 according to the optical axis of different discs, raising is to the counter stress of different discs, data read and record susceptibility height, and volume is little, do not take up room, use easy to operate.
Certainly, the above only is a better embodiment of the present utility model, so all equivalences of doing according to the described structure of the utility model patent claim, feature and principle change or modify, is included in the utility model patent claim.
Claims (6)
1. laser head grating adjusting mechanism, it is characterized in that: it includes mount pad (2), grating (3) and reversing frame (1), the front end of reversing frame (1) offers accommodation space (11), the rear end of reversing frame (1) offers the laser hole (12) that is communicated with accommodation space (11), reversing frame (1) outside surface offers revolution gathering sill (13), grating (3) is built in the accommodation space (11) of reversing frame (1), the rear end of mount pad (2) is provided with receiving space (24), reversing frame (1) rotates and is arranged in the receiving space (24), the front end of mount pad (2) offer make grating (3) corresponding with electron beam splitter spill hole (25), the sidewall (21) of mount pad (2) is provided with adjusts groove (26).
2. laser head grating adjusting mechanism according to claim 1 is characterized in that: the front end of described reversing frame (1) forms annular revolution flange (14), and revolution flange (14) is plugged in and spills in the hole (25).
3. laser head grating adjusting mechanism according to claim 1 is characterized in that: described accommodation space (11) offers the auxiliary position (15) of taking in.
4. laser head grating adjusting mechanism according to claim 1 is characterized in that: described reversing frame (1) is a circular configuration.
5. laser head grating adjusting mechanism according to claim 1 is characterized in that: described mount pad (2) includes left and right sides wall (21), bottom panel (22) and the front panel (23) that surrounds receiving space (24) mutually.
6. according to any described laser head grating adjusting mechanism of claim 1-5, it is characterized in that: the rear end of described mount pad (2) is provided with spring holder (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202877335U CN201741388U (en) | 2010-08-04 | 2010-08-04 | Grating adjustment mechanism for laser head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202877335U CN201741388U (en) | 2010-08-04 | 2010-08-04 | Grating adjustment mechanism for laser head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201741388U true CN201741388U (en) | 2011-02-09 |
Family
ID=43556665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202877335U Expired - Fee Related CN201741388U (en) | 2010-08-04 | 2010-08-04 | Grating adjustment mechanism for laser head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201741388U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109491034A (en) * | 2018-10-11 | 2019-03-19 | 上海荣高电子科技有限公司 | A kind of grating adjustment mechanism |
-
2010
- 2010-08-04 CN CN2010202877335U patent/CN201741388U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109491034A (en) * | 2018-10-11 | 2019-03-19 | 上海荣高电子科技有限公司 | A kind of grating adjustment mechanism |
| CN109491034B (en) * | 2018-10-11 | 2023-04-18 | 烟台荣高数字科技有限公司 | Grating adjusting mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110209 Termination date: 20130804 |