CN2429940Y - Laser diode photomechanism assembly - Google Patents
Laser diode photomechanism assembly Download PDFInfo
- Publication number
- CN2429940Y CN2429940Y CN 00233249 CN00233249U CN2429940Y CN 2429940 Y CN2429940 Y CN 2429940Y CN 00233249 CN00233249 CN 00233249 CN 00233249 U CN00233249 U CN 00233249U CN 2429940 Y CN2429940 Y CN 2429940Y
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- light
- laser diode
- diode
- reflecting plate
- laser
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Abstract
The utility model relates to a laser diode optical-mechanical module. The main assembly mode of the utility model is a planar assembly mode, wherein, a laser diode is arranged on a baseplate, an auxiliary heat radiating seat is juxtaposed between the laser diode and the baseplate, an optical detecting diode is arranged at one side of the auxiliary heat radiating seat, and the optical detecting diode is additionally connected with a reflecting plate for shielding light. Light of the laser diode can be reflected to the optical detecting diode by the reflecting plate for shielding light, and then is transformed to electronic signals, the magnitude of a drive current of the laser diode can be controlled by the electronic signals, so the purpose that light power is automatically controlled is reached.
Description
The utility model mainly provides a laser diode ray machine module, especially refer to a kind of mode by the plane assembling, via the setting of the reflecting plate that is in the light, the power of detection laser diode luminous power effectively is as the foundation of the drive current size of control laser diode.
In recent years, semiconductor technology is advanced by leaps and bounds, and the technology of photoelectric cell is also progressive thereupon, and wherein the use of laser diode increases day by day and often is widely used.Please consult the basic block diagram of a laser diode shown in Figure 1, wherein a substrate 18 is provided with the topped guide layer 17a of two carriers, 17b, be laser radiation field 16 in the middle of the left and right sides of this two-layer formed interlayer, outwards launch laser beam simultaneously so laser diode is the left and right sides.Wherein a direction is outwards emission, and other direction then can detect diode by a light and be received, to judge the power of luminous power.Yet generally the laser diode ray machine module of conventional planar assembling and effectively the luminous power power of detection laser diode make the auto light power of ray machine module control the effect extreme difference.In addition, the Output optical power of laser diode produces the influence that temperature rises owing to being limited by ambient temperature and spontaneous heating own, have luminous power and export unsettled phenomenon generation, so except must be to radiating seat with thermal transpiration itself, in order to stablize power output, then must add the setting that light inlet detects diode, be illustrated in figure 2 as conventional laser diode ray machine die set in the encapsulating structure profile of metal-back (metal can).Wherein promptly be that modular structure shown in Figure 1 is installed in the metal protective case 14, above metal protective case 14, be provided with a glass material 15, so that laser diode 20 is launched laser.Device one light detects diode 13 under laser diode 20 in addition, its effect is the power of detection laser diode 20 Output optical power, can convert light signal to electronic signal, detect the power that light detects the electronic signal of diode 13 again via the electronic circuit of other connections, the drive current of controlling laser diode 20 by the size of this electronic signal is suitable value, can reach the purpose of auto light power control.Yet this ripe conventional art can't be common to plane assembling ray machine module.
The purpose of this utility model provides a kind of reasonable idea, and has the laser diode plane assembling ray machine module of intention, to improve the defective that conventional art light detects the luminous power detection poor effect of diode pair laser diode.Moreover the utility model also device has protective device, detects the damage that diode avoids plane assembling module to be suffered in order to protection laser diode and light when assembling.
The utility model is achieved in that it mainly is device one auxiliary heat dissipation seat on a substrate, this auxiliary heat dissipation seat top is provided with a laser diode, it is characterized in that: this laser diode rear is provided with a light and detects diode and a reflecting plate that is in the light, make this light detect diode and accept the laser light that this laser diode rear is launched, by the power output power that detects this laser light, and then carry out luminous power control.
Wherein this reflecting plate that is in the light can be set to an angle device.
Wherein this reflecting plate that is in the light can be set to the reflection protection plate that is in the light.
Wherein this reflecting plate that is in the light can be set to be in the light a reflection protection lid.
Following conjunction with figs. brief description the purpose of this utility model, feature and effect.
Fig. 1 is the basic block diagram of laser diode.
Fig. 2 is that existing laser diode ray machine die set is in the encapsulating structure profile of metal-back.
Fig. 3 is the schematic perspective view of the utility model first embodiment.
Fig. 4 is the end view of the utility model first embodiment.
Fig. 5 is the end view of the utility model second embodiment.
Fig. 6 is the schematic perspective view of the utility model the 3rd embodiment.
See also the schematic perspective view of the utility model shown in Figure 3 first embodiment, it mainly is that a substrate 10 is provided with an auxiliary heat dissipation seat 30, promptly install a laser diode 20 on it, can be by the setting of auxiliary heat dissipation seat 30, the thermal energy dissipation that laser diode itself is produced is to auxiliary heat dissipation seat 30.The rear position device of this auxiliary heat dissipation seat 30 has a light to detect diode 40, power in order to the luminous power of detection laser diode, its detection mode is the setting of being in the light reflecting plate 50 by, the light that laser diode 20 rear end faces are launched is reflexed to this light detection diode 40, to reach the power of effective detection luminous power.As shown in Figure 4, other has the setting that comprises variable resistor 60 and electronic control circuit 70, with the effect as the drive current size of controlling laser diode 20.Consult the end view of the utility model shown in Figure 4 first embodiment again, wherein dotted line is depicted as the light that launch the another side of laser diode 20, detecting diode 40 via the reflection of the reflecting plate 50 that is in the light by light is accepted, to detect the luminous power power, then be converted to the electronic signal that varies in size again, change laser diode drive current size via the control and treatment of electronic control circuit 70 and variable resistor 60, use technological means, to reach the purpose of auto light power control as the light stable power output of laser.In addition, mandatory declaration be the vertical mode that is set to of this reflecting plate 50 that is in the light, yet, if cooperate the light of plane installing to detect the light angle of diode 40, the reflecting plate 50 that then also this can be in the light is set to the set-up mode of an angle, is beneficial to the light that is subjected to that light detects diode 40.
See also the schematic perspective view of the utility model shown in Figure 5 second embodiment; mainly be the reflecting plate 50 of being in the light among first embodiment is changed and to be set to as shown in Figure 5 be in the light reflection protection plate 51a, 51b, 51c; it is mainly the structure type shape of one " n " type; panel has the radiative effect of reflector laser diode 20 in the middle of it; the both sides panel then is to have the effect that protection light detects diode 40 and laser diode 20 in addition, suffers outside destroy when assemble on the plane again to avoid the ray machine module.
In addition; Figure 6 shows that the schematic perspective view of the utility model the 3rd embodiment; mainly be that the reflection protection that is in the light that the reflection protection plate 51a that is in the light among second embodiment, 51b, 51c repacking are changed to is as shown in Figure 6 covered 52; the light that it can not only the usable reflection laser diode be launched; also has the element that protection laser ray machine module front end is installed; detect diode 40 etc. as laser diode 20, auxiliary heat dissipation seat 30 and light, destroyed when avoiding assembling again.
Claims (4)
1, a kind of laser diode ray machine module, it is characterized in that: mainly be device one auxiliary heat dissipation seat on a substrate, this auxiliary heat dissipation seat top is provided with a laser diode, it is characterized in that: this laser diode rear is provided with a light and detects diode and a reflecting plate that is in the light, make this light detect diode and accept the laser light that this laser diode rear is launched, by the power output power that detects this laser light, and then carry out luminous power control.
2, laser diode ray machine module as claimed in claim 1 is characterized in that: wherein this reflecting plate that is in the light can be set to an angle device.
3, laser diode ray machine module as claimed in claim 1 is characterized in that: wherein this reflecting plate that is in the light can be set to the reflection protection plate that is in the light.
4, laser diode ray machine module as claimed in claim 1 is characterized in that: wherein this reflecting plate that is in the light can be set to be in the light a reflection protection lid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00233249 CN2429940Y (en) | 2000-05-26 | 2000-05-26 | Laser diode photomechanism assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00233249 CN2429940Y (en) | 2000-05-26 | 2000-05-26 | Laser diode photomechanism assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2429940Y true CN2429940Y (en) | 2001-05-09 |
Family
ID=33595642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00233249 Expired - Fee Related CN2429940Y (en) | 2000-05-26 | 2000-05-26 | Laser diode photomechanism assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2429940Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102412501A (en) * | 2011-11-09 | 2012-04-11 | 何少敏 | Laser head |
| CN103968286A (en) * | 2014-05-20 | 2014-08-06 | 贵州光浦森光电有限公司 | LED light machine module with horizontally arranged big chips |
-
2000
- 2000-05-26 CN CN 00233249 patent/CN2429940Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102412501A (en) * | 2011-11-09 | 2012-04-11 | 何少敏 | Laser head |
| CN103968286A (en) * | 2014-05-20 | 2014-08-06 | 贵州光浦森光电有限公司 | LED light machine module with horizontally arranged big chips |
| CN103968286B (en) * | 2014-05-20 | 2016-08-24 | 贵州光浦森光电有限公司 | The LED light machine module that large chip is horizontally disposed |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| FG1K | Grant of utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |