CN208923548U - A kind of infrared laser projection device containing safety monitoring function - Google Patents
A kind of infrared laser projection device containing safety monitoring function Download PDFInfo
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- CN208923548U CN208923548U CN201822008419.8U CN201822008419U CN208923548U CN 208923548 U CN208923548 U CN 208923548U CN 201822008419 U CN201822008419 U CN 201822008419U CN 208923548 U CN208923548 U CN 208923548U
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- infrared
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- infrared laser
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Abstract
The utility model discloses a kind of, and the infrared laser containing safety monitoring function projects device, including pedestal, light source, infrared induction receiver, lens barrel, even mating plate, reflectance coating, light source is fixed on the base, infrared induction receiving device is fixed on the base, and lens barrel is fixed on the base, and even mating plate is fixed on lens barrel, reflectance coating is fixed on face of the even mating plate towards chip, and position is located at even mating plate surrounding.Alternatively, even mating plate is replaced with diffractive-optical element, setting collimation camera lens below diffractive-optical element, and for receiving and converging the light beam of light source generation, reflectance coating is fixed on collimation face of the camera lens towards chip, and position is located at collimation camera lens surrounding.The utility model uses built-in infrared inducing receiver, whether can be in normal condition by the infrared monitoring infrared laser device of reflection.
Description
Technical field
The utility model relates to a kind of, and the infrared laser containing safety monitoring function projects device, belongs to LED manufacture technology
Field.
Background technique
Science and technology is showing improvement or progress day by day, either industrial production or daily life, and people are more next to automation and intelligent demand
It is higher.Currently, commonly infrared have been widely used for optical communication and safety-security area.But know in some special dimensions, such as face 3D
Not, iris recognition shields lower fingerprint recognition and trailer-mounted radar, needs power big, directive property is strong, the remote light source of irradiation distance.
Infrared laser is more and more to apply in face 3D identification, rainbow as the light source that can satisfy above-mentioned requirements
Film identification is shielded on the lower consumer products such as fingerprint recognition and trailer-mounted radar.But due to its power is big, directive property is high and human eye without
Method identification can generate safety issue if device occurs damaged and fails to be found in time.
Shenzhen Ao Bizhong Micron Technology Co., Ltd describes a kind of safety detection method in patent CN 207557634U:
Plus the transparent substrate for being coated with conductive film on diffraction optical device, by detecting the resistance and capacitor of conductive film, to examine
Survey the integrality of device.This method is that a kind of indirect method speculates whether device is damaged, and it is complete may to have conductive film
It is whole, but the problem that actual inside device is damaged.
Summary of the invention
The utility model use a kind of method, pass through: 1) collimation lens (by receive light source occur light beam, can
Enough parallel projections) or the inner surface (towards wafer face) of even optical lens (projecting optical-quality homogeneous) plate or stick one layer of reflection
Layer；2) increase infrared induction receiving device inside infrared laser device.
The normal value of measurement and setting infrared induction receiving device, in normal state, infrared induction receiver will receive
The infrared light of reflection and generate electric current, if collimation camera lens or smoothing mirror head occur damaged, will cause the strong of the infrared light of reflection
Degree changes, so that the intensity for the infrared light that infrared induction receiver receives changes, and the electric current for causing it to generate
It changes.
The technical solution of the utility model is as follows:
A kind of infrared laser projection device containing safety monitoring function, it is characterised in that: including pedestal, light source is infrared
Inducing receiver, lens barrel, even mating plate, reflectance coating, the light source is fixed on the base, for light beam to occur；The infrared induction
Receiving device is fixed on the base, and generates electric current for receiving the infrared beam of infrared laser reflection；The lens barrel is fixed
On pedestal, for blocking environment light and the even mating plate of fixed in position, the even mating plate is fixed on lens barrel, for light source to occur
Homogenizer launch device, the reflectance coating is fixed on face of the even mating plate towards chip, position is located at even mating plate surrounding.
Above-mentioned even mating plate is replaced with diffractive-optical element, setting collimation camera lens below the diffractive-optical element, for connecing
The light beam of light source generation is received and converges, the reflectance coating is fixed on collimation face of the camera lens towards chip, and position is located at collimation camera lens
Surrounding.
Above-mentioned pedestal is made of one or more materials of conductive or thermally conductive ceramics, alloy, metal or plastics.
Above-mentioned reflectance coating is the high molecular material that the mode of used bonding is sticked or is plated by way of coating
Metal layer, 1~50% having a size of even mating plate or diffractive-optical element, 0.01~100 μm of thickness.
Above-mentioned even mating plate is that even smooth high molecular material or the internal transparent substrate for being mixed with spread powder are contained in surface.
Above-mentioned diffractive-optical element is the transparent substrate through over etching or embossment, is converged with beam splitting by collimation camera lens for receiving
Poly- light beam, and delivery capabilities are evenly distributed outward, the high pattern picture light beam of contrast；Its material is transparent glass or transparent modeling
Material.
Above-mentioned light source is one or more bare crystalline or packaging body composition；The light source being capable of vertical and parallel infrared induction
Recipient setting, being capable of launch wavelength 830~1000nm infrared beam.
Above-mentioned infrared induction receiving device receiver wavelength range can be the infrared beam of 830~1000nm, infrared induction
The quantity of receiving device is one or more.
The utility model it is achieved the utility model has the advantages that
(1) the utility model uses built-in infrared inducing receiver, is by the infrared monitoring infrared laser device of reflection
It is no to be in normal condition.
(2) the utility model is due to built-in infrared inducing receiver, without being further added by monitoring device in the mould group stage.
(3) infrared intensity is reflected in the utility model monitoring, and when breakage occurs in device, infrared external reflection intensity will appear obviously
Change, can accurately judge whether device is damaged.
(4) the utility model also passes through increase reflected coat layer, to improve the sensitivity of built-in infrared inducing receiver.
Detailed description of the invention
Fig. 1 is original technical solution；
Fig. 2 is the technical solution of the improved this case of Fig. 1；
Fig. 3 is original technical solution；
Fig. 4 is the technical solution of the improved this case of Fig. 1.
Specific embodiment
The utility model is further described with reference to the accompanying drawing.Following embodiment is only used for clearly illustrating this
The technical solution of utility model, and cannot be used as a limitation the limitation protection scope of the utility model.
Embodiment one:
As shown in Figure 1, 2, a kind of infrared laser projection device containing safety monitoring function, including pedestal 10, light source 11,
Infrared induction receiver 12, lens barrel 13, even mating plate 14, reflectance coating 15, the light source 11 is fixed on pedestal 10, for light to occur
Beam；The infrared induction receiving device 12 is fixed on pedestal 10, is produced for receiving the infrared beam of infrared laser reflection
Raw electric current；The lens barrel 13 is fixed on pedestal 10, for blocking environment light and the even mating plate 14 of fixed in position, the even mating plate 14
It is fixed on lens barrel 13, the homogenizer for light source 11 to occur launches device, and the reflectance coating 15 is fixed on even light
Piece 14 is located at even 14 surrounding of mating plate towards the face of chip, position.When passing through even mating plate 14 or reflectance coating 15 part can occur for light beam
Reflection, the reflected beams are received by infrared induction receiver 12, and infrared induction receiver 12 receives meeting after the infrared beam of reflection
Generate electric current.When device is by breakage, reflected light beam intensities change, and the electric current that infrared induction receiver 12 generates can be therewith
It changes.By the variation to its electric current, whether monitoring detection device is damaged, and achievees the purpose that security protection.
Above-mentioned even mating plate 14 is that even smooth high molecular material or the internal transparent substrate for being mixed with spread powder are contained in surface.
Above-mentioned pedestal 10 is made of one or more materials of conductive or thermally conductive ceramics, alloy, metal or plastics.
Above-mentioned reflectance coating 15 is the high molecular material or plated by way of coating that the mode of used bonding is sticked
Metal layer, 1~50% having a size of even mating plate 14 or diffractive-optical element 17,0.01~100 μm of thickness.
Above-mentioned light source 11 is one or more bare crystalline or packaging body composition；The light source 11 can be vertical and parallel infrared
Induction receiver 12 is arranged, being capable of launch wavelength 830~1000nm infrared beam.
Above-mentioned 12 receiver wavelength range of infrared induction receiving device can be the infrared beam of 830~1000nm, infrared sense
The quantity for answering receiving device 12 is one or more.
Embodiment two:
As shown in Figure 3,4, a kind of infrared laser projection device containing safety monitoring function, including pedestal 10, light source 11,
Infrared induction receiver 12, lens barrel 13, diffractive-optical element 17, reflectance coating 15, the light source 11 are fixed on pedestal 10, are used for
Light beam occurs；The infrared induction receiving device 12 is fixed on pedestal 10, for receiving the infrared light of infrared laser reflection
Beam and generate electric current；The lens barrel 13 is fixed on pedestal 10, for blocking environment light and fixed in position diffractive-optical element 17,
The diffractive-optical element 17 is fixed on lens barrel 13, and the homogenizer for light source 11 to occur launches device, described
Setting collimation camera lens 16 below diffractive-optical element 17, for receiving and converging the light beam of the generation of light source 11, the reflectance coating 15
It is fixed on collimation face of the camera lens 16 towards chip, position is located at collimation 16 surrounding of camera lens.Light beam is by collimation camera lens 16 or reflection
Part can occur when film 15 to reflect, the reflected beams are received by infrared induction receiver 12, and infrared induction receiver 12 receives instead
Electric current can be generated after the infrared beam penetrated.When device is by breakage, reflected light beam intensities change, infrared induction receiver 12
The electric current of generation can change therewith.By the variation to its electric current, whether monitoring detection device is damaged, and reaches security protection
Purpose.
Above-mentioned pedestal 10 is made of one or more materials of conductive or thermally conductive ceramics, alloy, metal or plastics.
Above-mentioned reflectance coating 15 is the high molecular material or plated by way of coating that the mode of used bonding is sticked
Metal layer, 1~50% having a size of even mating plate 14 or diffractive-optical element 17,0.01~100 μm of thickness.
Above-mentioned diffractive-optical element 17 is the transparent substrate through over etching or embossment, for receiving with beam splitting by collimation camera lens
The light beam of 16 convergences, and delivery capabilities are evenly distributed outward, the high pattern picture light beam of contrast；Its material is for transparent glass or thoroughly
Bright plastics.
Above-mentioned light source 11 is one or more bare crystalline or packaging body composition；The light source 11 can be vertical and parallel infrared
Induction receiver 12 is arranged, being capable of launch wavelength 830~1000nm infrared beam.
Above-mentioned 12 receiver wavelength range of infrared induction receiving device can be the infrared beam of 830~1000nm, infrared sense
The quantity for answering receiving device 12 is one or more.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvement and deformations can also be made, these change
It also should be regarded as the protection scope of the utility model into deformation.
Claims (8)
1. a kind of infrared laser containing safety monitoring function projects device, it is characterised in that: including pedestal, light source, infrared sense
Receiver is answered, lens barrel, even mating plate, reflectance coating, the light source is fixed on the base, for light beam to occur；The infrared induction connects
It receives device to be fixed on the base, generates electric current for receiving the infrared beam of infrared laser reflection；The lens barrel is fixed on
On pedestal, for blocking environment light and the even mating plate of fixed in position, the even mating plate is fixed on lens barrel, for what light source occurred
Homogenizer launches device, and the reflectance coating is fixed on face of the even mating plate towards chip, and position is located at even mating plate surrounding.
2. a kind of infrared laser containing safety monitoring function according to claim 1 projects device, it is characterised in that: institute
It states even mating plate to be replaced with diffractive-optical element, setting collimation camera lens below the diffractive-optical element, for reception and converged light
The light beam that source occurs, the reflectance coating are fixed on collimation face of the camera lens towards chip, and position is located at collimation camera lens surrounding.
3. a kind of infrared laser containing safety monitoring function according to claim 1 or 2 projects device, feature exists
In: the pedestal is made of one or more materials of conductive or thermally conductive ceramics, alloy, metal or plastics.
4. a kind of infrared laser containing safety monitoring function according to claim 1 or 2 projects device, feature exists
In: the metal that the reflectance coating is the high molecular material that the mode of used bonding is sticked or is plated by way of coating
Layer, 1~50% having a size of even mating plate or diffractive-optical element, 0.01~100 μm of thickness.
5. a kind of infrared laser containing safety monitoring function according to claim 1 projects device, it is characterised in that: institute
Stating even mating plate is that even smooth high molecular material or the internal transparent substrate for being mixed with spread powder are contained in surface.
6. a kind of infrared laser containing safety monitoring function according to claim 2 projects device, it is characterised in that: institute
Stating diffractive-optical element is the transparent substrate through over etching or embossment, the light beam for receiving and beam splitting is converged by collimation camera lens,
And delivery capabilities are evenly distributed outward, the high pattern picture light beam of contrast；Its material is transparent glass or transparent plastic.
7. a kind of infrared laser containing safety monitoring function according to claim 1 or 2 projects device, feature exists
In: the light source is one or more bare crystalline or packaging body composition；The light source being capable of vertical and parallel infrared induction receiving
Device setting, being capable of launch wavelength 830~1000nm infrared beam.
8. a kind of infrared laser containing safety monitoring function according to claim 1 or 2 projects device, feature exists
In: the infrared induction receiving device receiver wavelength range can be the infrared beam of 830~1000nm, infrared induction receiver
The quantity of part is one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822008419.8U CN208923548U (en) | 2018-12-03 | 2018-12-03 | A kind of infrared laser projection device containing safety monitoring function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822008419.8U CN208923548U (en) | 2018-12-03 | 2018-12-03 | A kind of infrared laser projection device containing safety monitoring function |
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| Publication Number | Publication Date |
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| CN208923548U true CN208923548U (en) | 2019-05-31 |
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| CN201822008419.8U Active CN208923548U (en) | 2018-12-03 | 2018-12-03 | A kind of infrared laser projection device containing safety monitoring function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117080855A (en) * | 2023-07-24 | 2023-11-17 | 西南交通大学 | Portable pen-type laser capable of emitting near infrared light |
| WO2024066224A1 (en) * | 2022-09-27 | 2024-04-04 | 青岛海信宽带多媒体技术有限公司 | Optical module |
-
2018
- 2018-12-03 CN CN201822008419.8U patent/CN208923548U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024066224A1 (en) * | 2022-09-27 | 2024-04-04 | 青岛海信宽带多媒体技术有限公司 | Optical module |
| CN117080855A (en) * | 2023-07-24 | 2023-11-17 | 西南交通大学 | Portable pen-type laser capable of emitting near infrared light |
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