CN201774135U - Optical package cover structure of laser diode - Google Patents
Optical package cover structure of laser diode Download PDFInfo
- Publication number
- CN201774135U CN201774135U CN2010201417387U CN201020141738U CN201774135U CN 201774135 U CN201774135 U CN 201774135U CN 2010201417387 U CN2010201417387 U CN 2010201417387U CN 201020141738 U CN201020141738 U CN 201020141738U CN 201774135 U CN201774135 U CN 201774135U
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- China
- Prior art keywords
- laser diode
- optical
- lid
- optical package
- mirror slip
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Abstract
An optical package cover structure of a laser diode comprises a cover body with an open bottom and a through hole on the top surface, and an optical lens which is formed by pre-grinding, wherein the outer diameter of the optical lens is matched with the inner diameter of the cover body, and the optical lens is inserted upward to the preset height from the opened bottom of the cover body and fixed in the cover body, so as to form the optical package cover structure. The optical package cover structure provided by the utility model is convenient to process, can improve the productivity and the yield rate, meets the requirements for customization, small quantity and diversity, and can improve the reliability of the product.
Description
Technical field
The utility model relates to a kind of encapsulating structure, relates in particular to a kind of optical package lid structure of laser diode.
Background technology
Laser diode LD has been applied to numerous areas such as optical communication, optical recording and light storage since coming out; Laser diode LD have the limit penetrate type and and penetrate two kinds on type, wherein wall emission LD must be encapsulated, and enters and eliminate variation of ambient temperature to its Effect on Performance to prevent dust, to guarantee the stability of its product.
Existing LD packaged type is to adopt the TO-CAN structure, its structure as shown in Figure 1, this LD encapsulation 10A includes: a pedestal 11, several optical mirror slips 16 that electrically connect terminals 12, a photodetector 13, a laser 14, a cap 15 and a spherical constitute.This type patent is seen in the No.5 in US Patent, in 835, No. 514 preceding cases such as grades.
Shown in Figure 3, be the LD encapsulation 10B of existing another kind of TO-CAN structure, the optical mirror slip 17 on its cap 15 is a planar optics.
So; the cap 15 of above-mentioned TO-CAN structure; its objective is in order to protect the electronic component on the pedestal 11; but because of allowing the light of electronic component institute product throw away; so must offer a window 151 at cap 15 end faces that metal constituted, and then on this window 151, make optical mirror slip 16 or 17.
The method for making of existing optical mirror slip is to annotate mode with the liquid glass mould, and forming and hardening is at the window 151 of this cap 15.But this kind processing mode is wasted time and energy, and production capacity and yield all can't promote, and in addition, with the method for liquid condition shaping optical mirror slip, is difficult for providing customized a small amount of various demand.
The utility model content
Technical problem underlying to be solved in the utility model is, overcome the above-mentioned defective that prior art exists, and the optical package that a kind of laser diode is provided is covered structure, it has easy making process, and can promote customized and various in a small amount characteristic of meeting of production capacity and yield, and can promote the effect of production reliability.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of optical package lid structure of laser diode comprises: a lid, and the bottom is opening, and end face possesses a through hole; It is characterized in that: an optical mirror slip, be to grind moulding and its external diameter in advance to cooperate the internal diameter of this lid to make to form, moreover it is that bottom opening by this lid up is embedded in predetermined altitude, and is fixed in this lid, to constitute optical package lid structure.
The optical package lid structure of aforesaid laser diode, wherein lid is the circular shell that is made of metal.
The optical package lid structure of aforesaid laser diode, wherein optical mirror slip is a planar optics.
The optical package lid structure of aforesaid laser diode, wherein optical mirror slip is a toroidal lens.
The optical package lid structure of aforesaid laser diode, wherein optical mirror slip is a spherical lens.
The optical package of aforesaid laser diode lid structure, wherein optical mirror slip is fixed in the described lid with gluing, urgent or high-frequency mode.
The beneficial effects of the utility model are that it has easy making process, and can promote customized and various in a small amount characteristic of meeting of production capacity and yield, and can promote the effect of production reliability.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the schematic diagram of present a kind of TO-CAN laser diode.
Fig. 2 is the schematic diagram that existing another kind of TO-CAN electricity is penetrated diode.
Fig. 3 is the exploded perspective schematic diagram of the utility model preferred embodiment.
Fig. 4 is the cutaway view of the utility model preferred embodiment.
Fig. 5 is the cutaway view of another embodiment of the utility model.
Fig. 6 is the utility model cutaway view of an embodiment again.
The number in the figure explanation:
20 lids
21 openings
22 through holes
23 bulge loop faces
30 optical mirror slips
30a, 30b optical mirror slip
40 optical package lid
Embodiment
At first, see also shown in Fig. 3,4, the utility model preferred embodiment includes:
One lid 20, it comprises by the stamping forming round housing of metal, but is not limited to this, and its bottom is opening 21, and end face possesses a through hole 22, and in the present embodiment, the end periphery of this lid 20 includes a bulge loop face 23, but is not limited to this.Above structure is prior art (Prior Art), and non-patent target of the present utility model is held and do not given unnecessary details.
Principal character of the present utility model is: this optical mirror slip is the existing liquid machine-shaping mode of forgoing, but after the optical mirror slip 30 grinding moulding with a preliminary dimension earlier, up is embedded in predetermined altitude by these lid 20 bottom openings 21.Comprise with processing modes such as gluing, urgent, high frequencies, it is fixed in this lid 20, constitute optical package lid 40 structures according to this.In the present embodiment, this optical mirror slip 30 is a planar optics, but is not limited to this.That is it can be as shown in Figure 5, and this optical mirror slip 30a is included as a toroidal lens, also can be as shown in Figure 6, and this optical mirror slip 30b is included as a spherical lens.Its optical function can make on demand in advance, holds and does not give unnecessary details.
The mode that the utility model is embedded by lid bottom opening 21 with the optical lens that grinds moulding earlier, it is fixed in the lid 20, and the optical package that constitutes a predetermined optical function covers 40, in view of the above, solved the shortcoming of existing liquid processing optical eyeglass, reach easy making process, the effect that yield, production capacity and reliability promote is promoted.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.
In sum, the utility model is on structural design, use practicality and cost benefit, it is required to meet industry development fully, and the structure that is disclosed also is to have unprecedented innovation structure, have novelty, creativeness, practicality, the regulation that meets relevant novel patent requirement is so mention application in accordance with the law.
Claims (5)
1. the optical package of a laser diode is covered structure, comprising:
One lid, the bottom is opening, and end face possesses a through hole; It is characterized in that:
One optical mirror slip is to grind moulding and its external diameter in advance to cooperate the internal diameter of this lid to make to form, moreover it is that bottom opening by this lid up is embedded in predetermined altitude, and is fixed in this lid, to constitute optical package lid structure.
2. the optical package of laser diode according to claim 1 is covered structure, and it is characterized in that: described lid is the circular shell that is made of metal.
3. the optical package of laser diode according to claim 1 is covered structure, and it is characterized in that: described optical mirror slip is a planar optics.
4. the optical package of laser diode according to claim 1 is covered structure, and it is characterized in that: described optical mirror slip is a toroidal lens.
5. the optical package of laser diode according to claim 1 is covered structure, and it is characterized in that: described optical mirror slip is a spherical lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201417387U CN201774135U (en) | 2010-03-26 | 2010-03-26 | Optical package cover structure of laser diode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201417387U CN201774135U (en) | 2010-03-26 | 2010-03-26 | Optical package cover structure of laser diode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201774135U true CN201774135U (en) | 2011-03-23 |
Family
ID=43753973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201417387U Expired - Lifetime CN201774135U (en) | 2010-03-26 | 2010-03-26 | Optical package cover structure of laser diode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201774135U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112825414A (en) * | 2019-11-20 | 2021-05-21 | 瑞识科技（深圳）有限公司 | VCSEL laser device and manufacturing method thereof |
-
2010
- 2010-03-26 CN CN2010201417387U patent/CN201774135U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112825414A (en) * | 2019-11-20 | 2021-05-21 | 瑞识科技（深圳）有限公司 | VCSEL laser device and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110323 |