CN204243454U - Laser module with optical power detection device - Google Patents
Laser module with optical power detection device Download PDFInfo
- Publication number
- CN204243454U CN204243454U CN201420617555.6U CN201420617555U CN204243454U CN 204243454 U CN204243454 U CN 204243454U CN 201420617555 U CN201420617555 U CN 201420617555U CN 204243454 U CN204243454 U CN 204243454U
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- CN
- China
- Prior art keywords
- laser
- diode
- laser diode
- lens
- 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.)
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- 230000003287 optical effect Effects 0.000 title claims abstract description 29
- 238000001514 detection method Methods 0.000 title abstract 2
- 239000013078 crystal Substances 0.000 claims description 5
- 238000004806 packaging method and process Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
Abstract
The utility model relates to a laser module with optical power detection device, it includes: a laser diode device electrically connecting a laser diode with an automatic power control circuit: at least one light diode, set up in the exit surface of the laser diode component, and make the light diode connect with the electrical behavior of the automatic power control circuit: and a package housing, a lens is disposed at the front end, and the package housing encapsulates the laser diode element and the photodiode; therefore, the light diode receives the reflected light from the lens, and further feeds back the light power to the automatic power control circuit so as to maintain the stability of the output power of the laser light. Therefore, the reflector in the prior art is not needed, and the packaging shell does not need to be increased and is convenient to assemble.
Description
Technical field
The utility model is about a kind of laser module with luminous power arrangement for detecting, espespecially a kind of design that additionally need not arrange speculum.
Background technology
As shown in Figure 1A, Figure 1B, general automated power controls the laser module of (Automatic Power Control), that one speculum 12 is set in laser diode element 11 top rake, this speculum 12 can for laser light by and can reflecting part laser light, and an optical diode (Photodiode is set in the reflection path of laser light, 13), this optical diode 13 feedback luminous power to the automatic power control circuitry 14 controlling this laser diode element 11, to maintain the stable of laser light power output; But, because this laser diode element 11, this speculum 12 and this optical diode 13 are that the package casing 15 utilizing a front end to arrange lens 151 is encapsulated, the length of this package casing 15 must be able to increase because of the setting of this speculum 12, and the inclination angle (reflection path) arranging this speculum 12 may need to expend long adjustment.
Utility model content
For solving the problem that prior art causes package casing to increase because arranging speculum, the utility model provides a kind of laser module with luminous power arrangement for detecting, and it has effect package casing need not being increased because arranging speculum; Have and cause effect easy to assembly because speculum need not be arranged with adjustment mirror tilt angle.
The utility model solves the technical scheme that its technical problem adopts:
There is a laser module for luminous power arrangement for detecting, comprising: a laser diode element, a laser diode and an automatic power control circuitry are electrically connected; At least one optical diode, is arranged at the exiting surface of this laser diode element, and makes this optical diode and this automatic power control circuitry be electrically connected; And a package casing, front end arranges lens, and this laser diode element and this optical diode is encapsulated by this package casing; Whereby, this optical diode receives the reverberation from these lens, and then feedback luminous power is to this automatic power control circuitry, to maintain the stable of laser light power output.
In addition, this laser diode is high power laser diode.This laser diode is packaged in electric crystal type encapsulating structure.This optical diode borrows an annular support plate to be arranged at the exiting surface of this laser diode element.This optical diode is positioned at the reflecting surface territory of this lens base.
The beneficial effects of the utility model are, it has effect package casing need not being increased because arranging speculum; Have and cause effect easy to assembly because speculum need not be arranged with adjustment mirror tilt angle.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Figure 1A is the structural perspective of existing prior art.
Figure 1B is the structure cut-away view of existing prior art.
Fig. 2 is STRUCTURE DECOMPOSITION stereogram of the present utility model.
Fig. 3 is textural association stereogram of the present utility model.
Fig. 4 is structural upright cut-away view of the present utility model.
Fig. 5 is structural plan of the present utility model cut-away view.
Number in the figure illustrates:
11 laser diode elements
12 speculums
13 optical diodes
14 automatic power control circuitries
15 package casings
151 lens
20 laser modules
21 laser diode elements
211 laser diode
212 electric crystal type encapsulating structures
213 light holes
22 annular support plates
221 through holes
23 optical diodes
231 electric wires
24 automatic power control circuitries
25 package casings
251 lens
L reverberation
Embodiment
First, refer to shown in Fig. 2 ~ Fig. 5, laser module 20 of the present utility model comprises: a laser diode element 21, one laser diode 211 and an automatic power control circuitry 24 are electrically connected, and this laser diode 211 is high power laser diode and is packaged in electric crystal type encapsulating structure (To-Can, 212); At least one optical diode 23, is arranged at the exiting surface of this laser diode element 21 by means of an annular support plate 22, and makes this optical diode 23 be electrically connected through electric wire 231 and this automatic power control circuitry 24; And a package casing 25, front end arranges lens 251, and is encapsulated with this optical diode 23 by this laser diode element 21 by this package casing 25; Whereby, this optical diode 23 receives the reverberation L from these lens 251, and then feedback luminous power is to this automatic power control circuitry 24, to maintain the stable of laser light power output.
But the through hole 221 of these annular support plate 22 central authorities is greater than the light hole 213 of this electric crystal type encapsulating structure 212, avoid the output stopping laser light, and the optical diode 23 being positioned at this annular support plate 22 surface is just positioned at the reflecting surface territory of this lens 251 bottom surface.
Based on above-mentioned formation, the laser light that the utility model makes the direct reception of this optical diode 23 reflect from the lens 251 that this package casing 25 front end is arranged, and these lens 251 only reflect the laser light of trace usually; Wherein, if this laser diode is high power laser diode, even and if laser light that these lens 251 reflect trace, this optical diode 23 also can receive the laser light of reflection; Moreover, if this laser diode non-be high power laser diode, then can increase this optical diode 23 magnitude setting or by signal amplifier, make this optical diode 23 effectively can receive the laser light of reflection.
Therefore the utility model make this optical diode 23 directly receive the lens 251 arranged from this package casing 25 front end reflect the design of laser light, because the speculum of prior art need not be arranged, and there is package casing need not increase and effect easy to assembly.
The above, it is only preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, every above embodiment is done according to technical spirit of the present utility model any simple modification, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
In sum, the utility model is in structural design, use practicality and cost benefit, meet completely needed for industry development, and the structure disclosed also is have unprecedented innovative structure, there is novelty, creativeness, practicality, meet the regulation about utility model patent important document, therefore mention application in accordance with the law.
Claims (5)
1. there is a laser module for luminous power arrangement for detecting, it is characterized in that, comprising:
One laser diode element, is electrically connected a laser diode and an automatic power control circuitry;
At least one optical diode, is arranged at the exiting surface of this laser diode element, and makes this optical diode and this automatic power control circuitry be electrically connected; And
One package casing, front end arranges lens, and this laser diode element and this optical diode is encapsulated by this package casing;
Whereby, this optical diode receives the reverberation from these lens, and then feedback luminous power is to this automatic power control circuitry, to maintain the stable of laser light power output.
2. the laser module with luminous power arrangement for detecting according to claim 1, is characterized in that, described laser diode is high power laser diode.
3. the laser module with luminous power arrangement for detecting according to claim 1 and 2, is characterized in that, described laser diode is packaged in electric crystal type encapsulating structure.
4. the laser module with luminous power arrangement for detecting according to claim 3, is characterized in that, described optical diode borrows an annular support plate to be arranged at the exiting surface of this laser diode element.
5. the laser module with luminous power arrangement for detecting according to claim 3, is characterized in that, described optical diode is positioned at the reflecting surface territory of this lens base.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW103200329 | 2014-01-08 | ||
| TW103200329U TWM487557U (en) | 2014-01-08 | 2014-01-08 | Laser module with optical performance indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204243454U true CN204243454U (en) | 2015-04-01 |
Family
ID=52108508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420617555.6U Active CN204243454U (en) | 2014-01-08 | 2014-10-23 | Laser module with optical power detection device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN204243454U (en) |
| TW (1) | TWM487557U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI623755B (en) * | 2017-04-28 | 2018-05-11 | Nat Chung Shan Inst Science & Tech | Power measuring device for high power fiber laser system |
-
2014
- 2014-01-08 TW TW103200329U patent/TWM487557U/en not_active IP Right Cessation
- 2014-10-23 CN CN201420617555.6U patent/CN204243454U/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| TWM487557U (en) | 2014-10-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |