CN216487322U - Optical storage blue light optical head with quick read-write function - Google Patents
Optical storage blue light optical head with quick read-write function Download PDFInfo
- Publication number
- CN216487322U CN216487322U CN202122156326.1U CN202122156326U CN216487322U CN 216487322 U CN216487322 U CN 216487322U CN 202122156326 U CN202122156326 U CN 202122156326U CN 216487322 U CN216487322 U CN 216487322U
- Authority
- CN
- China
- Prior art keywords
- optical
- bias element
- light source
- optical bias
- blue light
- 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.)
- Withdrawn - After Issue
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 116
- 238000001514 detection method Methods 0.000 claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 239000013307 optical fiber Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 241001025261 Neoraja caerulea Species 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Images
Landscapes
- Optical Head (AREA)
Abstract
The utility model discloses a light storage blue light optical head with a quick read-write function, which comprises an optical head shell, wherein a first optical bias element is arranged in the optical head shell, a first light source component and a second light source component are respectively and symmetrically arranged on two sides of the first optical bias element, and the first light source component comprises a first blue light source and a first blue light source
A lambda plate, the second light source assembly including a second blue light source and a second light source
The optical fiber detection device comprises a lambda wave plate, wherein a collimating lens is arranged in the emergent direction of a first optical bias element, a detection assembly is also arranged in the direction of the first optical bias element back to the collimating lens, the detection assembly comprises a second optical bias element, a first detection assembly and a second detection assembly are arranged and matched with the second optical bias element, the first detection assembly is positioned in the reflection direction of the second optical bias element, and the second detection assembly is positioned in the transmission direction of the second optical bias element.
Description
Technical Field
The utility model relates to an optical head, in particular to an optical storage blue light optical head with a quick read-write function.
Background
The optical head is a mechanism for reading and writing data of an optical disc in an optical storage system, and a conventional optical head only contains one light source, that is, one optical head can only use one light beam for reading and writing, in this case, the maximum reading and writing speed of the optical head can reach 60M/S, and if the reading and writing speed is to be increased, for example, the reading and writing speed is doubled to reach more than 120M/S, two optical heads, that is, a dual-head optical storage system, need to be arranged in the optical storage system. The design of the double optical heads can improve the manufacturing cost on one hand, and can occupy larger space on the other hand, thereby increasing the design difficulty of the movement mechanism. There is therefore a need for a method or apparatus that addresses the above-mentioned problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides an optical storage blue light optical head with the functions of quick reading and writing, which has the advantages of simple structure, ingenious design, reasonable layout, compact structure and low cost, and is used for solving the defects in the prior art.
The technical solution of the utility model is as follows: an optical storage blue light optical head with fast read-write function comprises an optical head shell,the method is characterized in that: the optical head comprises an optical head shell, and is characterized in that a first optical bias element 1 is arranged in the optical head shell, a first light source assembly and a second light source assembly are respectively and symmetrically arranged on two sides of the first optical bias element 1, and the first light source assembly comprises a first blue light source 2 and a first blue light source
A lambda plate 3, the second light source assembly comprising a second blue light source 4 and a second light source
A lambda-plate 5, a collimating lens 6 is disposed in the emitting direction of the first optical bias element 1, a detecting component is disposed in the direction of the first optical bias element 1 away from the collimating lens 6, the detecting component includes a second optical bias element 7, and a first detecting component and a second detecting component are disposed in cooperation with the second optical bias element 7, the first detecting component is located in the reflecting direction of the second optical bias element 7, the second detecting component is located in the transmitting direction of the second optical bias element 7, the first detecting component includes a first photodetector 8, a first detecting mirror 9 is disposed between the first photodetector 8 and the second optical bias element 7, the second detecting component includes a second photodetector 10,
a first reflector 11 is arranged in the exit direction of the collimating lens 6, a third optical bias element 12 is arranged in the exit direction of the first reflector 11, a first objective lens assembly is arranged in the transmission direction of the third optical bias element 12, a second reflector 13 is arranged in the reflection direction of the third optical bias element 12, a second objective lens assembly with the same structure as the first objective lens assembly is arranged in the exit direction of the second reflector 13,
the first objective lens assembly comprises a first objective lens 14, wherein magnet coils 15 are symmetrically arranged on two sides of the first objective lens 14, and a first objective lens 14 is arranged in the incident direction of the first objective lens 14
A lambda plate 16.
Compared with the prior art, the utility model has the following advantages:
the optical storage blue light optical head with the fast read-write function in the structural form is simple in structure, ingenious in design and reasonable in layout, and aims at solving the problem that the read-write speed is relatively low due to the fact that a traditional optical head only comprises one blue light source. And the whole volume is compact, and share a part of optical elements, compared with the mode of two optical heads under the condition of the same reading and writing speed, the occupied space is smaller, and the cost is lower. Therefore, the method has multiple advantages, is particularly suitable for popularization and application in the field, and has very wide market prospect.
Drawings
Fig. 1 is a schematic diagram of the optical path of an embodiment of the present invention.
Detailed Description
The following description will explain embodiments of the present invention with reference to the accompanying drawings. As shown in fig. 1: the utility model provides an optical storage blue light optical head with fast read-write function, includes the optical head casing, its characterized in that: the optical head comprises an optical head shell, and is characterized in that a first optical bias element 1 is arranged in the optical head shell, a first light source assembly and a second light source assembly are respectively and symmetrically arranged on two sides of the first optical bias element 1, and the first light source assembly comprises a first blue light source 2 and a first blue light source
A lambda plate 3, the second light source assembly comprising a second blue light source 4 and a second light source
A lambda-plate 5, a collimating lens 6 is disposed in the emitting direction of the first optical bias element 1, a detecting component is disposed in the direction of the first optical bias element 1 away from the collimating lens 6, the detecting component includes a second optical bias element 7, and a first detecting component and a second detecting component are disposed in cooperation with the second optical bias element 7, the first detecting component is located in the reflecting direction of the second optical bias element 7, the second detecting component is located in the transmitting direction of the second optical bias element 7, the first detecting component includes a first photodetector 8, a first detecting mirror 9 is disposed between the first photodetector 8 and the second optical bias element 7, the second detecting component includes a second photodetector 10,
a first reflector 11 is arranged in the exit direction of the collimating lens 6, a third optical bias element 12 is arranged in the exit direction of the first reflector 11, a first objective lens assembly is arranged in the transmission direction of the third optical bias element 12, a second reflector 13 is arranged in the reflection direction of the third optical bias element 12, a second objective lens assembly with the same structure as the first objective lens assembly is arranged in the exit direction of the second reflector 13,
the first objective lens assembly comprises a first objective lens 14, wherein magnet coils 15 are symmetrically arranged on two sides of the first objective lens 14, and a first objective lens 14 is arranged in the incident direction of the first objective lens 14
A lambda plate 16.
The working process of the optical storage blue-ray optical head with the rapid read-write function of the embodiment of the utility model is as follows: the wavelength range of the first blue light source 2 is 400-410nm, the wavelength range of the second blue light source 4 is 415-425nm, the light emitted by the first blue light source and the second blue light source are linearly polarized light (P polarized light) vibrating in the horizontal direction, and the horizontally linearly polarized light emitted by the first blue light source and the second blue light source passes through the first blue light source
Lambda plate 3 and second
After the λ -plate 5, the light becomes the first polarized light (S polarized light) in the vertical direction, and the two first polarized lights enter the first optical bias element 1 at the same time, and the characteristics of the first reflection surface in the first optical bias element 1 are as follows: the reflection wavelength is 400-410nm S polarized light, the transmission wavelength is 415-425nm S polarized light, and the transmission wavelength is 400-410nm and 415-425nm P polarized light; the properties of the second reflecting surface are as follows: the reflection wavelength is 415-425nm S polarized light, the transmission wavelength is 400-410nm S polarized light, and the transmission wavelength is 400-410nm and 415-425nm P polarized light;
the light emitted by the first optical biasing element 1 passes through the collimating lens 6 and then becomes parallel beams, and then enters the third optical biasing element 12 after changing the direction through the first reflector 11 placed at 45 degrees, the S-polarized light with the wavelength of 415-425nm is reflected by the third optical biasing element 12, and the S-polarized light with the wavelength of 400-410nm is transmitted by the third optical biasing element 12; s-polarized light of 400- & ltwbr/& gt410 nm transmitted through the third optical biasing element 12 passes through the first
The lambda wave plate 16 is changed into elliptically polarized light, and the elliptically polarized light is focused on the optical disk after passing through the first objective lens 14; the 415-425nm S polarized light reflected by the third optical bias element 12 is reflected by the second reflector 13 and then passes through the second reflector
A lambda plate which is also changed into elliptically polarized light, and the elliptically polarized light is focused on the optical disk 12 after passing through the second objective lens;
the magnet coils arranged on the two sides of the first objective lens 14 or the second objective lens can respectively drive the two objective lenses to perform focusing/tracking servo driving, that is, two optical paths can respectively perform servo driving, so that the accuracy of signal reading and writing is ensured.
After the light spot is directed onto the optical disc,after reflection from the optical disc, the elliptically polarized light of 400-
The lambda plate 16 is changed into P linearly polarized light and reaches the third optical bias element 12; similarly, after the other optical path is reflected by the optical disc, the 415-425nm elliptically polarized light passes through the second objective lens to become parallel light velocity, and then passes through the second objective lens
The lambda wave plate is changed into P linearly polarized light, and the P linearly polarized light reaches the third optical bias element 12 after being reflected by the second reflecting mirror 13;
the third optical bias element 12 can reflect the P polarized light with the wavelength of 415-425nm, transmit the P polarized light with the wavelength of 400-410nm, the P polarized light with the two wavelengths enters the collimating mirror 6 after being reflected by the first reflecting mirror 11, and the two P polarized lights reach the second optical bias element 7 after being transmitted by the first optical bias element 1;
the properties of the reflective layer in the second optical biasing element 7 are: the P polarized light of 400-410nm is transmitted, and the P polarized light of 415-425nm is reflected, so that the two kinds of P polarized light can respectively focus on the first photodetector 8 and the second photodetector 10 through transmission and reflection after reaching the second optical biasing element 7, and the signal detection of the optical disc is realized.
Claims (1)
1. The utility model provides an optical storage blue light optical head with fast read-write function, includes the optical head casing, its characterized in that: the optical head comprises an optical head shell and is characterized in that a first optical bias element (1) is arranged in the optical head shell, a first light source assembly and a second light source assembly are symmetrically arranged on two sides of the first optical bias element (1) respectively, and the first light source assembly comprises a first blue light source (2) and a first blue light source
A lambda plate (3), the second light source assembly comprising a second blue light source (4) and a second blue light source
A lambda-wave plate (5), a collimating lens (6) is arranged in the emergent direction of the first optical bias element (1), a detection assembly is also arranged in the direction of the first optical bias element (1) back to the collimating lens (6), the detection assembly comprises a second optical bias element (7), a first detection assembly and a second detection assembly are arranged in a manner of being matched with the second optical bias element (7), the first detection assembly is positioned in the reflection direction of the second optical bias element (7), the second detection assembly is positioned in the transmission direction of the second optical bias element (7), the first detection assembly comprises a first photoelectric detector (8), a first detection mirror (9) is arranged between the first photoelectric detector (8) and the second optical bias element (7), and the second detection assembly comprises a second photoelectric detector (10), a second detection mirror (17) is arranged between the second photoelectric detector (10) and the second optical bias element (7),
a first reflector (11) is arranged in the emergent direction of the collimating lens (6), a third optical bias element (12) is arranged in the emergent direction of the first reflector (11), a first objective lens assembly is arranged in the transmission direction of the third optical bias element (12), a second reflector (13) is arranged in the reflection direction of the third optical bias element (12), and a second objective lens assembly with the same structure as the first objective lens assembly is arranged in the emergent direction of the second reflector (13),
the first objective lens assembly comprises a first objective lens (14), magnet coils (15) are symmetrically arranged on two sides of the first objective lens (14), and a first objective lens (14) is arranged in the incident direction of the first objective lens (14)
A lambda plate (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122156326.1U CN216487322U (en) | 2021-09-08 | 2021-09-08 | Optical storage blue light optical head with quick read-write function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122156326.1U CN216487322U (en) | 2021-09-08 | 2021-09-08 | Optical storage blue light optical head with quick read-write function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216487322U true CN216487322U (en) | 2022-05-10 |
Family
ID=81437035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122156326.1U Withdrawn - After Issue CN216487322U (en) | 2021-09-08 | 2021-09-08 | Optical storage blue light optical head with quick read-write function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216487322U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113764010A (en) * | 2021-09-08 | 2021-12-07 | 中国华录·松下电子信息有限公司 | Optical storage blue light optical head with quick read-write function |
-
2021
- 2021-09-08 CN CN202122156326.1U patent/CN216487322U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113764010A (en) * | 2021-09-08 | 2021-12-07 | 中国华录·松下电子信息有限公司 | Optical storage blue light optical head with quick read-write function |
| CN113764010B (en) * | 2021-09-08 | 2024-05-31 | 中国华录·松下电子信息有限公司 | Optical storage blue-ray optical head with rapid reading and writing function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100230529B1 (en) | Optical disk apparatus and optical head | |
| CA1232353A (en) | Optical signal recorders employing two lasers and methods therefor | |
| JPS60131648A (en) | Optical head | |
| US7948858B2 (en) | Optical information processing apparatus, optical pick-up device and optical recording disc system | |
| CN216487322U (en) | Optical storage blue light optical head with quick read-write function | |
| JPS6220Y2 (en) | ||
| JPS6047240A (en) | Optical head device | |
| CN113764010B (en) | Optical storage blue-ray optical head with rapid reading and writing function | |
| US5220553A (en) | Optical head | |
| US6661765B2 (en) | Optical pickup apparatus | |
| JPH0478029A (en) | Optical information recording and reproducing device | |
| KR20050074046A (en) | Beam shaping prism and optical pickup using it | |
| KR950005957B1 (en) | Optical pick up system | |
| JPH06349104A (en) | Optical pickup | |
| KR19990003782A (en) | Optical pickup | |
| KR0170521B1 (en) | A beam circulation device of optical pickup system | |
| JPH09171633A (en) | Integrated optical pickup system | |
| KR100438290B1 (en) | Optical pickup | |
| KR100224886B1 (en) | Optical pickup apparatus | |
| JPH0636337A (en) | Two-beam optical head | |
| JP3077426B2 (en) | Optical information recording / reproducing device | |
| JP2825873B2 (en) | Optical waveguide | |
| JP2812764B2 (en) | Optical head for optical disk device | |
| KR970000083Y1 (en) | Scanning apparatus | |
| JP2578203B2 (en) | Light head |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20220510 Effective date of abandoning: 20240531 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20220510 Effective date of abandoning: 20240531 |