CN201717509U - Plastic optical encapsulation hood with high air tightness - Google Patents
Plastic optical encapsulation hood with high air tightness Download PDFInfo
- Publication number
- CN201717509U CN201717509U CN2010201752402U CN201020175240U CN201717509U CN 201717509 U CN201717509 U CN 201717509U CN 2010201752402 U CN2010201752402 U CN 2010201752402U CN 201020175240 U CN201020175240 U CN 201020175240U CN 201717509 U CN201717509 U CN 201717509U
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- CN
- China
- Prior art keywords
- groove
- air tightness
- high air
- package cover
- optical package
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- 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 provides a plastic optical encapsulation hood with high air tightness, which comprises a metal cylinder part, an optical plastic part, a first gas tight unit and a second gas tight unit, wherein, the metal cylinder part comprises a surrounding wall, an upper wall and a light transmitting hole; the first gas tight unit comprises a first groove and a first convex part, the first groove is formed on the surrounding wall, and the first convex part is formed on the optical plastic part; the second gas tight unit comprises two second grooves and two second convex parts, the two second grooves are formed on the upper wall, and the two second convex parts are formed on the optical plastic part; the temperature for forming operation of the optical plastic part is lower, so that the die loss can be reduced and the manufacture cost can be lowered; in addition, the contact area between the metal cylinder part and the optical plastic part is increased by utilizing the first gas tight unit and the second gas tight unit, therefore, the desired airtight effect can be achieved.
Description
Technical field
The utility model relates to a kind of optical element, particularly relates to a kind of optical package cover that is used to encapsulate laser diode.
Background technology
General laser diode when practical application for avoiding chip because of steam produces corrosion, be mostly to utilize optical package cover (TO cap, transistor outline cap) encapsulation after, carry out coupling light with other optical element again.
Consult Fig. 1, optical package cover 1 in the past comprises a metal barrier part 11 and an optical glass lens 12, this metal barrier part 11 is a car spare, around defining a room 13 that supplies laser diode to be installed in, comprise a loophole 111, this optical glass lens 12 is the glass marbles that utilize mould heat pressure optical glass to make, and then mould model is in these metal barrier part 11 loopholes 111, and combine with this metal barrier part 11, but will be with glass marble is hot-forming when being this optical glass lens 12, because the processing and forming temperature of optical glass is higher than 500 ℃, just the processing temperature of hot pressing glass marble is higher than 500 ℃, so, can make the mould loss comparatively fast increase the frequency that repairs a die, cause the cost of manufacture of this optics sealing cover 1 to improve.
Therefore, a kind of cost is lower and to reach the optical package cover 1 of airtight effect required for existing market.
The utility model content
The purpose of this utility model is to provide a kind of plastic cement optical package cover of the high air tightness that can reduce cost.
The plastic cement optical package cover of the high air tightness of the utility model, comprise: a metal barrier part and an optics plastic parts, this metal barrier part comprises a leg, a roof that connects this leg top, and loophole that is opened in this roof, this optics plastic parts takes shape on this metal barrier part, comprise a linking part that coats this metal barrier part roof and leg top, reach one should loophole being positioned at the lens section of these linking part central authorities; The plastic cement optical package cover of this high air tightness is characterised in that: this plastic cement optical package cover also comprises one first sealed unit and one second sealed unit, this first sealed unit is positioned at this metal barrier part leg medial surface, comprise that is formed at wherein first groove of one of this leg and linking part, and one to should first groove shaped being formed in wherein another first protuberance of this leg and linking part, this second sealed unit is positioned at this metal barrier part roof, comprise that at least one is formed at wherein one second groove of this roof and linking part, and at least one is to should second groove shaped being formed in wherein another second protuberance of this roof and linking part.
The plastic cement optical package cover of the high air tightness of the utility model, first groove of this first sealed unit is positioned at this leg medial surface, and this first protuberance is positioned at this optics plastic parts linking part.
The plastic cement optical package cover of the high air tightness of the utility model, this first groove is closed circular.
The plastic cement optical package cover of the high air tightness of the utility model, the cross section of this first groove is circular-arc.
The plastic cement optical package cover of the high air tightness of the utility model, second groove of this second sealed unit is positioned at this roof end face, and this second protuberance is positioned at this optics plastic parts linking part.
The plastic cement optical package cover of the high air tightness of the utility model, this second groove is closed circular.
The plastic cement optical package cover of the high air tightness of the utility model, the cross section of this second groove is circular-arc.
The plastic cement optical package cover of the high air tightness of the utility model, this second sealed unit comprise that quantity is two second groove and second protuberance, and another second groove is positioned at this roof bottom surface.
The beneficial effects of the utility model are: this optics plastic parts operations for forming temperature is low can to reduce the mould loss, and then reduction manufacturing cost, and increase contact area between this metal barrier part and this optics plastic parts by this first sealed unit and second sealed unit, can reach required airtight effect.
Description of drawings
Fig. 1 is the cutaway view of a kind of optical package cover in the past;
Fig. 2 is the semi-finished product cutaway view of a preferred embodiment of the plastic cement optical package cover of a kind of high air tightness of the utility model;
The three-dimensional cutaway view of this preferred embodiment of Fig. 3.
Embodiment
Below in conjunction with drawings and Examples the utility model is elaborated:
Consult Fig. 2 and Fig. 3, a preferred embodiment of the plastic cement optical package cover of the high air tightness of the utility model comprises a metal barrier part 2, optics plastic parts 3, first sealed unit 4 and one second sealed unit 5.
This metal barrier part 2 comprises a leg 21, a roof 22 that connects these leg 21 tops, and a loophole 23 that is opened in this roof 22.
This optics plastic parts 3 comprises a linking part 31 that coats these metal barrier part 2 roofs 22 and leg 21 tops, and one to should loophole 23 being positioned at the lens section 32 of these linking part 31 central authorities.
This first sealed unit 4 is positioned at this metal barrier part 2 legs 21 medial surfaces 211, comprises one first groove 41, and one to should first groove 41 being formed at first protuberance 42 of this linking part 31.This first groove 41 is formed at this leg 21 medial surfaces 211, be closed circular around these leg 21 medial surfaces 211, and the cross section is circular-arc.
This second sealed unit 5 is positioned at this metal barrier part 2 roofs 22, comprises that two are formed at second groove 51 of this roof 22, and two corresponding described second grooves 51 are formed at second protuberance 52 of this linking part 31.Described second groove 51 wherein one is positioned at this roof 22 end faces 221, and another second groove 51 is positioned at this roof 22 bottom surfaces 222, and described second groove 51 is closed circular around these roof 22 end faces 221, and the cross section is circular-arc.
How the plastic cement optical package cover that the high air tightness of the utility model then is described is made, at first, utilize stamping forming mode to prepare this metal barrier part 2, then, the optics plastic material of fusion is utilized mould 6 ejection formations, make the optics plastic material fill up the die cavity of mould 6, treat mold removal 6 behind the optics plastic material cooling forming, promptly be shaped to this optics plastic parts 3 and inlay card on this metal barrier part 2.In the present embodiment, the optics plastic material is to adopt PEI-1010, about 350 ℃ of processing and forming temperature, and glass transition temperature is 217 ℃, it should be noted that, the optics plastic material is not limited to PEI-1010, also can use other optics plastic material, for example OKP4-HT.
Comprehensively above-mentioned, the plastic cement optical package cover advantage of the high air tightness of the utility model can be summarized as follows:
One, reduces manufacturing cost: because this optics plastic parts 3 is that the optics plastic material is made, lens 12 compared to existing optics sealing cover 1 are the modes that adopt optical glass material to make, except being easier to make non-spherical lens with the optics light coupling efficient that improves laser diode, more because the processing and forming temperature of this optics plastic parts 3 is 350 ℃, than optical glass 500 ℃ are low, so in the course of processing, can reduce the loss of mould 6, and then save repair a die cost and improve and produce yield of mould 6.
Two, has good air tightness: utilize that these metal barrier part 2 legs 21 are formed with this first groove 41, roof 22 is formed with two second grooves 51, can increase the contact area of 3 of this metal barrier part 2 and this optics plastic parts, and then improve both airtight joint degree.
What deserves to be mentioned is that this first groove 41, second groove 51 also can be arranged at this optics plastic parts 3 linking parts 31, also can be the multisection type arc but not closed circular, quantity and section shape also can be adjusted (figure does not show).
Claims (8)
1. the plastic cement optical package cover of a high air tightness, comprise: a metal barrier part and an optics plastic parts, described metal barrier part comprises a leg, a roof that connects described leg top, and loophole that is opened in described roof, described optics plastic parts takes shape on the described metal barrier part, comprise a linking part that coats described metal barrier part roof and leg top, reach the lens section that a described loophole of correspondence is positioned at described linking part central authorities; The plastic cement optical package cover of described high air tightness is characterised in that: described plastic cement optical package cover also comprises one first sealed unit and one second sealed unit, described first sealed unit is positioned at described metal barrier part leg medial surface, comprise that is formed at wherein first groove of one of described leg and linking part, and described first groove shaped of correspondence is formed in wherein another first protuberance of described leg and linking part, described second sealed unit is positioned at described metal barrier part roof, comprise that at least one is formed at wherein one second groove of described roof and linking part, and at least one corresponding described second groove shaped is formed in wherein another second protuberance of described roof and linking part.
2. the plastic cement optical package cover of high air tightness according to claim 1, it is characterized in that: first groove of described first sealed unit is positioned at described leg medial surface, and described first protuberance is positioned at described optics plastic parts linking part.
3. the plastic cement optical package cover of high air tightness according to claim 2, it is characterized in that: described first groove is closed circular.
4. the plastic cement optical package cover of high air tightness according to claim 3, it is characterized in that: the cross section of described first groove is circular-arc.
5. the plastic cement optical package cover of high air tightness according to claim 1, it is characterized in that: second groove of described second sealed unit is positioned at described roof end face, and described second protuberance is positioned at described optics plastic parts linking part.
6. the plastic cement optical package cover of high air tightness according to claim 5, it is characterized in that: described second groove is closed circular.
7. the plastic cement optical package cover of high air tightness according to claim 6, it is characterized in that: the cross section of described second groove is circular-arc.
8. the plastic cement optical package cover of high air tightness according to claim 5, it is characterized in that: described second sealed unit comprises that quantity is two second groove and second protuberance, and another second groove is positioned at described roof bottom surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201752402U CN201717509U (en) | 2010-04-27 | 2010-04-27 | Plastic optical encapsulation hood with high air tightness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201752402U CN201717509U (en) | 2010-04-27 | 2010-04-27 | Plastic optical encapsulation hood with high air tightness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201717509U true CN201717509U (en) | 2011-01-19 |
Family
ID=43463516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201752402U Expired - Lifetime CN201717509U (en) | 2010-04-27 | 2010-04-27 | Plastic optical encapsulation hood with high air tightness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201717509U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108475708A (en) * | 2015-09-18 | 2018-08-31 | 奥斯兰姆奥普托半导体有限责任公司 | Photoelectron subassembly |
-
2010
- 2010-04-27 CN CN2010201752402U patent/CN201717509U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108475708A (en) * | 2015-09-18 | 2018-08-31 | 奥斯兰姆奥普托半导体有限责任公司 | Photoelectron subassembly |
| CN108475708B (en) * | 2015-09-18 | 2021-10-12 | 奥斯兰姆奥普托半导体有限责任公司 | Optoelectronic component |
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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 |
Granted publication date: 20110119 |
|
| CX01 | Expiry of patent term |