CN206789557U - A kind of mounting structure of photodetector - Google Patents
A kind of mounting structure of photodetector Download PDFInfo
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- CN206789557U CN206789557U CN201720728121.7U CN201720728121U CN206789557U CN 206789557 U CN206789557 U CN 206789557U CN 201720728121 U CN201720728121 U CN 201720728121U CN 206789557 U CN206789557 U CN 206789557U
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- photodetector
- light
- light reflecting
- reflecting device
- substrate
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Abstract
The utility model discloses a kind of mounting structure of photodetector, including photodetector, the light reflecting device for the substrate for reflecting light into photodetector is bonded with the substrate of the photodetector, the light reflecting device installation is on a mounting board.This programme reflects light into the substrate of photodetector using light reflecting device, and the active photosensitive areas of PD are reached after substrate transport, i.e. light, then by PD induced photocurrents, realizes that photodetection is changed from PD back surface incident.Using the structure, PD is directly bonded on light reflecting device, and light reflecting device is mounted directly on a mounting board, it is not necessary to extra support, is effectively improved space availability ratio, is reduced device and complexity, reduce assembly difficulty, has practical feasibility.
Description
Technical field
It the utility model is related to the field of photodetectors in optical communication, and in particular to a kind of installation knot of photodetector
Structure.
Background technology
In current optical communication applications field, photodetector is that PD application structure is that PD fronts are placed, and front is incident
Photosensitive, i.e. photosensitive region is located at PD front, and pad is in front, and incident optical signal is also from positive incident, in PD photosensitive region
Relative atmospheric plates anti-reflection film.The application of this mode limits PD displacement structure, particularly chip in plate and chip in box
, it is necessary to which chip is directly bonded onboard or in box in, the characteristics of due to optic communication product, now have to light beam
Carrying out turnover could allow PD to receive optical signal, and conventionally used refractive power mode is reflective, now need increase by one anti-
Injection device, and under the small space of product small size and high-precision prerequisite, installing the reflection unit has certain difficulty,
And great challenge is brought for design, limit its structure.
Utility model content
In order to solve the above-mentioned technical problem the utility model provides a kind of mounting structure of photodetector.
The utility model is achieved through the following technical solutions：
A kind of mounting structure of photodetector, including photodetector, it is bonded with the substrate of the photodetector
The light reflecting device of the substrate of photodetector is reflected light into, the light reflecting device installation is on a mounting board.This programme profit
The substrate of photodetector is reflected light into light reflecting device, the active photosensitive areas of PD, i.e. light are reached after substrate transport from PD
Back surface incident, then by PD induced photocurrents, realize that photodetection is changed.Using the structure, PD is directly bonded in light reflection
On device, light reflecting device is mounted directly on a mounting board, it is not necessary to extra support, space availability ratio is effectively improved,
Reduce device and complexity, reduce assembly difficulty, there is practical feasibility.
Preferably, the light reflecting device is reflecting prism.
Further, the reflecting prism is right-angle reflecting prism or cubic reflecting prism, the lining of the photodetector
Bottom is bonded in the right angle light pass surface of reflecting prism.Using the reflecting prism of the structure, it is easy to the adjustment to angle of light to reach
To different demands.
Preferably, the light reflecting device includes reflecting prism and anaclasis is entered to the lens of reflecting prism, the light
The substrate of electric explorer is bonded on reflecting prism.
Preferably, to improve coupling efficiency, the light reflecting device passes through printing opacity glue sticking with photodetector.
The utility model compared with prior art, has the following advantages and advantages：
1st, PD of the present utility model is directly bonded on light reflecting device, and light reflecting device is mounted directly on a mounting board,
Extra support is not needed, is effectively improved space availability ratio, reduces the complexity of device, reduces assembly difficulty,
With practical feasibility.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the utility model embodiment, forms the one of the application
Part, the restriction to the utility model embodiment is not formed.In the accompanying drawings：
Fig. 1 is the structural representation that light reflecting device of the present utility model uses reflecting prism.
Fig. 2 is light reflecting device of the present utility model using reflecting prism and the structural representation of lens.
Fig. 3 is the structural representation that light reflecting device of the present utility model uses lens.
Mark and corresponding parts title in accompanying drawing：
101st, photodetector, 102, light reflecting device, 103, installing plate.
Embodiment
For the purpose of this utility model, technical scheme and advantage is more clearly understood, with reference to embodiment and accompanying drawing,
The utility model is described in further detail, and exemplary embodiment of the present utility model and its explanation are only used for explaining this
Utility model, it is not intended as to restriction of the present utility model.
Embodiment 1
A kind of mounting structure of photodetector as shown in Figure 1, including photodetector 101, photodetector 101
The light reflecting device 102 for the substrate for reflecting light into photodetector is bonded with substrate, light reflecting device 102 is arranged on installation
On plate 103.
Installing plate herein can be the installing plate of bottom plate or box body, and light reflecting device 102 is directly installed on peace
In loading board 103, it is not necessary to which extra support, structure type is simple, easy for installation.
Using the mounting structure, optical signal is from one end incidence back reflection of light reflecting device to the PD back side, then from PD
The back side be transferred to the coupling that light beam is realized up to photosensitive area again, solve traditional complicated, installation difficulty, cost is higher
Technical problem, realize small-sized and simplify, be easily installed, lower-cost technique effect.
Embodiment 2
Based on the thought of embodiment 1, the present embodiment is refined to the specific implementation form of light reflecting device 102.
Specifically, as shown in figure 1, light reflecting device 102 can use reflecting prism.When using reflecting prism, using straight
Corner reflection prism and cubic reflecting prism, into isosceles square, cubic reflecting prism is unpolarized point in right-angle reflecting prism section
Light prism it is extreme, i.e. direction light splitting 100%, another direction light splitting is 0.The substrate of photodetector 101 is bonded in
In the right angle light pass surface of reflecting prism.Using the mounting structure, light is incided in reflecting prism from a right-angle surface of reflecting prism,
And face where the hypotenuse in right angled triangle be refracted into the back side of photodetector 101.The light entrance face of reflecting prism can
To take arbitrary value according to the design needs, or by changing the incident angle of light beam realize different demands.In order to strengthen optocoupler
Efficiency is closed, reflecting prism plates anti-reflection film by printing opacity glue sticking, bonding plane with photodetector 101 to glue.
Specifically, as shown in Fig. 2 light reflecting device 102 can use reflecting prism and anaclasis is entered into the saturating of reflecting prism
The structure of mirror, the substrate of photodetector 101 are bonded on reflecting prism.Reflecting prism and lens can use integrative-structure,
Adhesive connection can be used, either using which kind of mode, all greatly reduces space and physical dimension, is had greatly excellent
Gesture.Likewise, during reflecting prism, using right-angle reflecting prism and cubic reflecting prism, the substrate of photodetector 101 is bonded in
In the right angle light pass surface of reflecting prism.Light reflecting device 102 passes through printing opacity glue sticking with photodetector 101.
Specifically, as shown in figure 3, light reflecting device 102 can use lens, light is directly transmitted to photodetection from lens
The back side of device 101, centre do not pass through reflective surface.Equally, plated film is needed to improve coupling between photodetector 101 and lens
Close efficiency.
Above-described embodiment, the purpose of this utility model, technical scheme and beneficial effect are entered
One step describes in detail, should be understood that and the foregoing is only specific embodiment of the present utility model, is not used to limit
Determine the scope of protection of the utility model, it is all within the spirit and principles of the utility model, any modification for being made, equally replace
Change, improve, should be included within the scope of protection of the utility model.
Claims (6)
1. a kind of mounting structure of photodetector, including photodetector (101), it is characterised in that the photodetector
(101) light reflecting device (102) for the substrate for reflecting light into photodetector, the light reflecting device are bonded with substrate
(102) it is arranged on installing plate (103).
A kind of 2. mounting structure of photodetector according to claim 1, it is characterised in that the light reflecting device
(102) it is reflecting prism.
3. the mounting structure of a kind of photodetector according to claim 2, it is characterised in that the reflecting prism is straight
Corner reflection prism and cubic reflecting prism, the substrate of the photodetector (101) are bonded in the right angle light pass surface of reflecting prism
On.
A kind of 4. mounting structure of photodetector according to claim 1, it is characterised in that the light reflecting device
(102) include reflecting prism and anaclasis is entered to the lens of reflecting prism, the substrate of the photodetector (101) is bonded in instead
Penetrate on prism.
A kind of 5. mounting structure of photodetector according to claim 1, it is characterised in that the light reflecting device
(102) it is lens.
A kind of 6. mounting structure of photodetector according to claim 1, it is characterised in that the light reflecting device
(102) printing opacity glue sticking is passed through with photodetector (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720728121.7U CN206789557U (en) | 2017-06-20 | 2017-06-20 | A kind of mounting structure of photodetector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720728121.7U CN206789557U (en) | 2017-06-20 | 2017-06-20 | A kind of mounting structure of photodetector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206789557U true CN206789557U (en) | 2017-12-22 |
Family
ID=60717582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720728121.7U Active CN206789557U (en) | 2017-06-20 | 2017-06-20 | A kind of mounting structure of photodetector |
Country Status (1)
| Country | Link |
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| CN (1) | CN206789557U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114068752A (en) * | 2021-11-18 | 2022-02-18 | 中国科学院长春光学精密机械与物理研究所 | Photoelectric detector with light splitting structure |
| WO2022196360A1 (en) * | 2021-03-17 | 2022-09-22 | 株式会社小糸製作所 | Light-receiving element and measurement device |
-
2017
- 2017-06-20 CN CN201720728121.7U patent/CN206789557U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022196360A1 (en) * | 2021-03-17 | 2022-09-22 | 株式会社小糸製作所 | Light-receiving element and measurement device |
| CN114068752A (en) * | 2021-11-18 | 2022-02-18 | 中国科学院长春光学精密机械与物理研究所 | Photoelectric detector with light splitting structure |
| CN114068752B (en) * | 2021-11-18 | 2023-12-01 | 中国科学院长春光学精密机械与物理研究所 | Photoelectric detector with light splitting structure |
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