CN208795947U - Optical module, photoelectricity mould group, depth acquisition device and electronic equipment - Google Patents
Optical module, photoelectricity mould group, depth acquisition device and electronic equipment Download PDFInfo
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- CN208795947U CN208795947U CN201821730257.2U CN201821730257U CN208795947U CN 208795947 U CN208795947 U CN 208795947U CN 201821730257 U CN201821730257 U CN 201821730257U CN 208795947 U CN208795947 U CN 208795947U
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- galvanic circle
- optical element
- light
- connection line
- mould group
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Abstract
The utility model discloses a kind of optical module, photoelectricity mould group, depth acquisition device and electronic equipments.Optical module includes optical element and galvanic circle, and optical element is used to expand or spread laser.Galvanic circle is arranged on optical element.Galvanic circle includes multiple conducting wires and connection line, and connection line is for connecting multiple conducting wires, and in optical element exception, conducting wire and/or connection line disconnect and galvanic circle disconnected.The optical module of the utility model can judge whether optical element is intact according to the electric signal that galvanic circle exports, and improve optical element uses security level.In addition, a conducting wire or a connection line are due to failure and when disconnecting wherein since galvanic circle is made of multiple conducting wires and connection line, galvanic circle can still be connected, optical element exception is not judged, not will cause false failure, is improved the accuracy of abnormality detection.
Description
Technical field
The utility model relates to consumer electronics fields, more specifically, are related to a kind of optical module, photoelectricity mould group, depth
Spend acquisition device and electronic equipment.
Background technique
Since existing optical element is mostly fine structure, it is easy to appear rupture when by external impacts, falls off, shift
Deng abnormal.If can not judge that optical element is abnormal and continues to use abnormal optical element, when the corresponding light source of optical element
When the light energy of sending is higher, for example, laser when, without optical element effect light directly send out after be easy the user that burns
(such as the eyes for the user that burns), there are biggish security risks.
Utility model content
The utility model embodiment provides a kind of optical module, photoelectricity mould group, depth acquisition device and electronic equipment.
The optical module of the utility model embodiment includes optical element and galvanic circle, and the optical element is for expanding
Beam or spread laser；The galvanic circle is arranged on the optical element, the galvanic circle include multiple conducting wires with
And connection line, the connection line is for connecting multiple conducting wires, in the optical element exception, the conduction
Route and/or the connection line disconnect and the galvanic circle are disconnected.
The optical module of the utility model judge that whether extremely optical element, can be with using the electric signal of galvanic circle output
It when judging that optical element occurs abnormal, takes safety measures in time, improve optical element uses security level.In addition,
Since galvanic circle is made of multiple conducting wires and connection line, only disconnected in conducting wire and/or connection line
And when galvanic circle is disconnected, just judge optical element exception；And wherein a conducting wire or a connection line by
When failure disconnects, galvanic circle can be still connected, and do not judged optical element exception, would not be caused false failure, i.e.,
It will not be judged as optical element exception according only to the disconnection of a conducting wire or a connection line, and trigger and safety is taken to arrange
It applies, improves the accuracy of abnormality detection.
In some embodiments, the connection line includes the first sub- connection line and the second sub- connection line, described
First sub- connection line is used to connect the conducting wire of interval first distance setting, and the second sub- connection line is for connecting
Connect the conducting wire of interval second distance setting.
The conducting wire of two interval first distance settings is connected using the first sub- connection line, and utilizes the second son connection
The conducting wire of connection interval second distance setting, the probability for making galvanic circle open circuit occur is smaller, and it is false to reduce appearance
A possibility that property failure, improve the accuracy of abnormality detection.
In some embodiments, the optical element includes opposite incidence surface and light-emitting surface, the incidence surface and institute
It states light-emitting surface to set gradually along the light optical path that goes out of the laser, the optical element includes diffraction micro structural, and the diffraction is micro-
Structure is arranged on the light-emitting surface for expanding the laser, the diffraction micro structural, and the galvanic circle is arranged described
On incidence surface.
Since diffraction micro structural is fine structure, diffraction micro structural and galvanic circle are separately positioned on the two of optical element
Side avoids in the technical process that galvanic circle is covered on diffraction micro structural, destroys diffraction micro structural.
In some embodiments, the optical element includes opposite incidence surface and light-emitting surface, the incidence surface and institute
It states light-emitting surface to set gradually along the light optical path that goes out of the laser, the optical element includes diffraction micro structural, and the diffraction is micro-
Structure is arranged on the incidence surface for expanding the laser, the diffraction micro structural, and the galvanic circle is arranged described
On light-emitting surface.
Galvanic circle is arranged on light-emitting surface, can avoid the diffraction micro structural being arranged on incidence surface, avoid and leading
Electrical circuit is covered in the technical process of diffraction micro structural, destroys diffraction micro structural.In addition, diffraction micro structural is arranged in photoelectricity mould
The inside of group, so that diffraction micro structural is not readily susceptible to the interference such as extraneous steam, dust.
In some embodiments, the optical element is diffuser, the optical element include opposite incidence surface and
Light-emitting surface, the incidence surface and the light-emitting surface are set gradually along the light optical path that goes out of the laser, the galvanic circle setting
On the light-emitting surface.
Galvanic circle can be set on light-emitting surface, connect convenient for galvanic circle with external circuit.
In some embodiments, the optical element is diffuser, the optical element include opposite incidence surface and
Light-emitting surface, the incidence surface and the light-emitting surface are set gradually along the light optical path that goes out of the laser, the galvanic circle setting
On the incidence surface.
Galvanic circle is arranged on the incidence surface of diffuser, so that the inside of photoelectricity mould group is arranged in galvanic circle, thus
Galvanic circle is not readily susceptible to the interference such as extraneous steam, dust.
In some embodiments, the optical element is diffuser, the optical element include opposite incidence surface and
Light-emitting surface, the incidence surface and the light-emitting surface are set gradually along the light optical path that goes out of the laser, the galvanic circle setting
On the incidence surface and the light-emitting surface.
Due to being provided with galvanic circle on incidence surface and light-emitting surface, when the light-emitting surface of optical element does not influence but extremely
When to incidence surface, such as optical element is ruptured from light-emitting surface but without influence on incidence surface, and optical module remains to pass through incidence surface
On galvanic circle output electric signal carry out abnormality detection；And when the incidence surface of optical element is abnormal without influence on light out
When face, for example, optical element is ruptured from incidence surface but without influence on light-emitting surface, optical module is remained to through leading on light-emitting surface
The electric signal of electrical circuit output carries out abnormality detection, for being only provided with galvanic circle on incidence surface or light-emitting surface,
The sensitivity of abnormality detection is higher.
In some embodiments, the distribution patterns of the galvanic circle include serpentine shape distribution patterns, palisade distribution map
One of case, rectangular-ambulatory-plane distribution patterns are a variety of.
Galvanic circle is by being arranged reasonable distribution patterns, such as serpentine shape distribution patterns, palisade distribution patterns, rectangular-ambulatory-plane
The combination of distribution patterns or a variety of distribution patterns, it is bigger that galvanic circle is covered on the area on optical element, expands conductive return
The range of road detection.
In some embodiments, the galvanic circle includes input terminal and output end, the input terminal and the output
End is electrically connected to form measure loop with external circuit respectively.
Galvanic circle and external circuit are electrically connected to form measure loop, and the electric signal of measure loop is used as light
The foundation of the abnormality detection of component is learned, the safety that optical module uses is improved.
The photoelectricity mould group of the utility model embodiment includes optical module described in light source and any of the above-described embodiment.
The light source is for emitting laser.Going out in light optical path and being used to expand the laser for the light source is arranged in the optical module
Beam or diffusion.
In the photoelectricity mould group of the utility model, due to being provided with galvanic circle on optical element, photoelectricity mould group can be with
Judge whether optical element is fully mounted in photoelectricity mould group according to the electric signal that galvanic circle exports, can judge optics
When element occurs abnormal, light source is closed in time, and improve photoelectricity mould group uses security level.Further, since galvanic circle is
It is made of multiple conducting wires and connection line, is only disconnected in conducting wire and/or connection line and makes galvanic circle
When disconnection, optical element exception is just judged；And a conducting wire or a connection line due to failure and when disconnecting wherein,
Galvanic circle can still be connected, and do not judge optical element exception, would not cause false failure and close light source, influence photoelectricity
The normal work of mould group improves the accuracy of abnormality detection.
In some embodiments, the galvanic circle includes input terminal and output end, the input terminal and the output
End is electrically connected to form measure loop with the light source respectively；In the optical module exception, the measure loop is disconnected.
Light source is accessed in measure loop, photoelectricity mould group can judge whether optical module is abnormal according to measure loop, and
In optical module exception, light source is closed in time, and that improves photoelectricity mould group uses security level.
The depth acquisition device of the utility model embodiment include photoelectricity mould group described in any of the above-described embodiment and
Camera mould group.The photoelectricity mould group is used to emit laser towards target object.The camera mould group is for receiving through the object
Laser after body reflection.
In the depth acquisition device of the utility model, due to being provided with galvanic circle, photoelectricity mould group on optical element
It can judge whether optical element is fully mounted in photoelectricity mould group according to the electric signal that galvanic circle exports, can judge
When optical element occurs abnormal, light source is closed in time, and improve photoelectricity mould group uses security level.Further, since conductive return
Road is made of multiple conducting wires and connection line, is only disconnected in conducting wire and/or connection line and is made conduction
When circuit disconnects, optical element exception is just judged；And a conducting wire or a connection line are broken due to failure wherein
When opening, galvanic circle can be still connected, and do not judged optical element exception, would not be caused false failure and close light source, shadow
The normal work for ringing photoelectricity mould group, improves the accuracy of abnormality detection.
The electronic equipment of the utility model embodiment includes depth acquisition device described in shell and above embodiment,
The depth acquisition device setting is on the housing.
In the electronic equipment of the utility model, due to being provided with galvanic circle on optical element, photoelectricity mould group can be with
Judge whether optical element is fully mounted in photoelectricity mould group according to the electric signal that galvanic circle exports, can judge optics
When element occurs abnormal, light source is closed in time, and improve photoelectricity mould group uses security level.Further, since galvanic circle is
It is made of multiple conducting wires and connection line, is only disconnected in conducting wire and/or connection line and makes galvanic circle
When disconnection, optical element exception is just judged；And a conducting wire or a connection line due to failure and when disconnecting wherein,
Galvanic circle can still be connected, and do not judge optical element exception, would not cause false failure and close light source, influence photoelectricity
The normal work of mould group improves the accuracy of abnormality detection.
The additional aspect and advantage of the embodiments of the present invention will be set forth in part in the description, partially will be from
Become obvious in following description, or is recognized by the practice of the embodiments of the present invention.
Detailed description of the invention
In description of the above-mentioned and/or additional aspect and advantage of the utility model from combination following accompanying drawings to embodiment
It will be apparent and be readily appreciated that, in which:
Fig. 1 is the structural schematic diagram of the electronic equipment of the utility model embodiment；
Fig. 2 is the structural schematic diagram of the depth acquisition device of the utility model embodiment；
Fig. 3 is the structural schematic diagram of the photoelectricity mould group of the utility model embodiment；
Fig. 4 is the structural schematic diagram of the optical module of the utility model embodiment；
Fig. 5 is the equivalent circuit diagram of the measure loop of the photoelectricity mould group of the utility model embodiment；
Fig. 6 is the structural schematic diagram of the optical module of another embodiment of the utility model；With
Fig. 7 is the structural schematic diagram of the photoelectricity mould group of another embodiment of the utility model.
Specific embodiment
The embodiments of the present invention is described further below in conjunction with attached drawing.Same or similar label in attached drawing
Same or similar element or element with the same or similar functions are indicated from beginning to end.
In addition, the embodiments of the present invention described with reference to the accompanying drawing is exemplary, it is only used for explaining this reality
With novel embodiment, and should not be understood as limiting the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature is in the second feature " on " or " down "
It can be that the first and second features directly contact or the first and second features are by intermediary mediate contact.Moreover, first is special
Sign can be fisrt feature above the second feature " above ", " above " and " above " and be directly above or diagonally above the second feature, or only
Indicate that first feature horizontal height is higher than second feature.Fisrt feature under the second feature " below ", " below " and " below " can be with
It is that fisrt feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
Referring to Fig. 1, the electronic equipment 1000 of the utility model embodiment can be the electronics dress that can obtain depth
It sets, such as mobile phone, computer (including tablet computer, laptop computer etc.), game machine, head show equipment, monitoring device, access control system
Deng.The utility model is illustrated so that electronic equipment 1000 is mobile phone as an example.Specifically, electronic equipment 1000 includes shell 200
With depth acquisition device 100.Shell 200 can provide protection to the depth acquisition device 100 being arranged on shell 200, such as
It can isolate water, dust, electromagnetic wave etc., to extend the service life of depth acquisition device 100.In one example, shell
Hole corresponding with depth acquisition device 100 is offered on 200.Light can be pierced by or penetrate shell 200 from hole.
Referring to Fig. 2, the depth acquisition device 100 of the utility model embodiment can be applied to recognition of face, 3D modeling
Equal fields.Depth acquisition device 100 includes photoelectricity mould group 10 and camera mould group 20.Photoelectricity mould group 10 is used to emit towards target object
Laser, such as emit laser pattern towards user.Camera mould group 20 is for receiving the laser after target object reflects.Depth obtains
Device 100 further includes processor 30.Processor 30 is used for according to the received laser of camera mould group 20 so that (depth image) is imaged.Tool
Body, processor 30 is all connected with camera mould group 20 and photoelectricity mould group 10, and processor 30 is for handling above-mentioned laser to obtain depth
Spend image.Can also be formed on depth acquisition device 100 projection window 40 corresponding with photoelectricity mould group 10 and with camera mould group
20 corresponding acquisition windows 50.Photoelectricity mould group 10 can project laser, camera mould group 20 to object space by projection window 40
The laser after target object reflects can be received by acquisition window 50.In one example, depth acquisition device 100 is
The photoelectricity mould group 10 of structure light depth camera, structure light depth camera can project speckle pattern or coding structure light pattern,
Camera mould group 20 is received through the modulated speckle pattern of target object or coding structure light pattern, and processor 30 is according to speckle pattern
Case or coded structured light pattern generation depth image.In another example, depth acquisition device 100 is the flight time
(Time of flight, TOF) depth camera.The photoelectricity mould group 10 of flight time depth camera can emit towards target object to swash
Light, and the laser after target object reflects is received by camera mould group 20, processor 30 swashs according to transmitting laser and reception reflection
Time difference between light calculates the distance between target object and flight time depth camera, to obtain the depth of target object
Spend information.
Referring to Fig. 3, the photoelectricity mould group 10 of the utility model embodiment includes substrate 11, lens barrel 12, light source 13 and light
Learn component 14.
Substrate 11 can be used for carrying light source 13.Substrate 11 can be flexible circuit board, hard circuit board or soft or hard combination
At least one of circuit board.Substrate 11 includes opposite the first face 111 and the second face 112.It first face 111 can be with lens barrel 12
It is combined with light source 13, the second face 112 can be in conjunction with external circuit, such as in conjunction with the mainboard of electronic equipment 1000.At one
In example, the material of substrate 11 can be plastics, in this way, 11 lighter weight of substrate and have enough support strengths.Another
In a example, the material of substrate 11 can be ceramics, in this way, substrate 11 can preferably radiate to light source 13.
Lens barrel 12 is arranged on the substrate 11.Lens barrel 12 includes screwing togather, being glued, engaging with the connection type of substrate 11.Mirror
Accommodating space 121 is collectively formed with substrate 11 in cylinder 12.Light source 13 and optical module 14 are housed in accommodating space 121, lens barrel
12 pairs of light sources 13 and optical module 14 form protective effect.In one example, lens barrel 12 includes side wall 122 and roof 123.
Roof 123 can be combined with optical module 14.
Light source 13 is for emitting laser.Light source 13 is arranged on the substrate 11.In one example, light source 13 can be carried on
On first face 111 of substrate 11.Light source 13 includes the light-emitting surface 131 far from the first face 111, and laser is issued from light-emitting surface 131.Light
Source 13 can be vertical-cavity surface-emitting device (Vertical-Cavity Surface-Emitting Laser, VCSEL).Vertical cavity
Terrestrial transmitter includes the light-emitting component of semiconductor substrate and setting on substrate, and the battle array being made of a plurality of light-emitting elements is arranged in substrate
Column laser, specifically, a plurality of light-emitting elements can be arranged on substrate in the form of regularly or irregularly two-dimensional pattern.
Using vertical-cavity surface-emitting device as light source 13, then the irrelevance for being projected to the laser of target object can be higher, is conducive to obtain
Take high accuracy depth image.
Optical module 14 can be set on lens barrel 12 and with the light-emitting surface of light source 13 131 relatively, specifically, optical module
14 can be fixed on lens barrel 12 by connection types such as engaging, gluings, and are housed in accommodating space 121.Optical module 14
Including optical element 141 and galvanic circle 142.
Optical element 141 is used to expand or spread laser, such as the laser emitted from light source 13.Optical element 141 includes
Opposite incidence surface 1411 and light-emitting surface 1412.Incidence surface 141 and light-emitting surface 142 are set gradually along the light optical path that goes out of laser.
The light-emitting surface 131 of incidence surface 141 and light source 13 is opposite.
Incorporated by reference to Fig. 4, galvanic circle 142 is arranged on optical element 141.Galvanic circle 142 and external circuit (such as with
The mainboard of electronic equipment 1000) it connects to form complete circuit.One end input electrical signal from galvanic circle 142, electric signal
Behind the galvanic circle 142 with resistance, the size of electric signal changes, such as electric current becomes smaller, therefore according to output
The size of electric signal may determine that whether optical element 141 is intact.Specifically, conductive when optical element 141 is serviceable condition
The resistance in circuit 142 is smaller, then the electric signal exported is stronger, for example electric current is larger.When optical element 141 is abnormal, for example, it is broken
It splits, galvanic circle 142 can also rupture, and the resistance of galvanic circle 142 is larger at this time, then the electric signal exported is weaker, such as electric current
It is smaller.In addition, galvanic circle 142 is formed with external circuit when optical element 141 falls off or is displaced from lens barrel 12
Circuit also will disconnect, then the electric signal that galvanic circle 142 exports is also weaker, for example electric current is also smaller or is zero.Therefore, light
Electric mould group 10 passes through the electric signal for judging that galvanic circle 142 exports, and can detecte whether optical element 141 is fully mounted on
On lens barrel 12.When detecting that optical element 141 is not mounted on fully on lens barrel 12, photoelectricity mould group 10 takes safety in time
Measure, such as light source 13 is closed, just hair is being expanded or spread without intact optical element 141 to prevent the laser that light source 13 emits
It is shot out, the eyes for the user that burns, that improves optical element 141 uses security level.
Further, galvanic circle 142 includes multiple conducting wires 1421 and connection line 1422.Connection line 1422
For connecting multiple conducting wires 1421.When optical element 141 is abnormal, conducting wire 1421 and/or connection line 1422 are disconnected
It opens and galvanic circle 142 is disconnected.
Specifically, multiple conducting wires 1421 and connection line 1422 are covered on the surface of optical element 141.Its
In, multiple conducting wires 1421 are connected by connection line 1422, for example, two conducting wires 1421 can only pass through a company
Link 1422 connects, and can also be connected by multiple connection lines 1422.In one example, since interval first distance is set
The distance between the conducting wire 1421 set very little, therefore in 141 exception of optical element, it is spaced the conduction of first distance setting
Route 1421 can disconnect together, so that galvanic circle 142 disconnects.In another example, abnormal in optical element 141
Place, a disconnection of connection line 1422 allow for the disconnection of galvanic circle 142.Certainly, in 141 exception of optical element, conductor wire
Road 1421 and connection line 1422 can also simultaneously switch off, so that galvanic circle 142 disconnects.The disconnection of galvanic circle 142
So that the all-in resistance of galvanic circle 142 is larger, the electric signal of output is weaker, for example electric current is smaller.And work as one of conductor wire
Road 1421 or a connection line 1422 are due to failure and when disconnecting, such as a conducting wire 1421 or a connection line
1422 occur falling off or quality is bad and can not be connected, due to interval first distance setting other conducting wires 1421 and its
His connection line 1422 is serviceable condition, and galvanic circle 142 can still be connected, and electric current can still flow through entire optical element 141
Surface, galvanic circle 142 can still continue to judge whether optical element 141 intact at this time.Therefore, photoelectricity mould group 10 will not be only
It is abnormal that optical element 141 is judged as according to the disconnection of a conducting wire 1421 or a connection line 1422, and is triggered and taken
Safety measure avoids false failure and triggers photoelectricity mould group 10 and take safety measures, such as closes light source 13, so that photoelectricity
Mould group 10 can not project laser.In the present embodiment, galvanic circle 142 can for tin indium oxide (Indium tin oxide,
ITO), silver nanowire, any one in metal silver wire.Tin indium oxide, silver nanowire, metal silver wire all have good light transmission
Rate and electric conductivity are, it can be achieved that the electric signal after being powered exports, while will not generate screening to the light optical path that goes out of optical element 141
Gear.
Whether the optical module 14 of the utility model judges optical element 141 using the electric signal that galvanic circle 142 exports
It is abnormal, it can take safety measures in time when judging that optical element 141 occurs abnormal, improve the use of optical element 141
Security level.In addition, only existing since galvanic circle 142 is made of multiple conducting wires 1421 and connection line 1422
When conducting wire 1421 and/or connection line 1422 disconnect and galvanic circle 142 disconnected, just judge that optical element 141 is different
Often；And due to failure and when disconnecting, galvanic circle 142 still may be used for a conducting wire 1421 or a connection line 1422 wherein
With conducting, does not judge 141 exception of optical element, false failure would not be caused, i.e., it will not be according only to a conducting wire
1421 or the disconnection of a connection line 1422 to be judged as optical element 141 abnormal, and trigger and take safety measures, improve different
The accuracy often detected.It should be noted that the galvanic circle 142 of the utility model is not limited to apply the light in photoelectricity mould group 10
It learns in element 141, can be applied in other and be easy exceptions or occur on the device of slight crack, such as optical device.With camera lens
For eyeglass, galvanic circle 142 is arranged on the surface of eyeglass to detect whether eyeglass is abnormal, to guarantee the optics effect of eyeglass
Fruit is preferable.
To sum up, the electronic equipment 1000 of the utility model, depth acquisition device 100, in photoelectricity mould group 10, due to optics member
Galvanic circle 142 is provided on part 141, therefore photoelectricity mould group 10 can judge light according to the electric signal that galvanic circle 142 exports
It learns whether element 141 is fully mounted in photoelectricity mould group 10, can be closed in time when judging that optical element 141 occurs abnormal
Black out source 13, improve photoelectricity mould group 10 uses security level.Further, since galvanic circle 142 is by multiple conducting wires
1421 and connection line 1422 form, only disconnected in conducting wire 1421 and/or connection line 1422 and make conductive return
When road 142 disconnects, just judge that optical element 141 is abnormal；And a conducting wire 1421 or a connection line 1422 wherein
When being disconnected due to failure, galvanic circle 142 can be still connected, and do not judged 141 exception of optical element, would not be caused false
Failure and he closes light source 13, influence the normal work of photoelectricity mould group 10, improve the accuracy of abnormality detection.
Referring to Fig. 4, in some embodiments, galvanic circle 142 includes input terminal 1423 and output end 1424.Input
End 1423 and output end 1424 are electrically connected to form measure loop with external circuit respectively.
The input terminal 1423 and output end 1424 of galvanic circle 142 can be successively set on optical element 141 it is ipsilateral (such as
Fig. 4), it also can be set and be arranged in the not ipsilateral of optical element 141, such as input terminal 1423 such as the optical element 141 of Fig. 4
The right side of optical element 141 is arranged in left side, output end 1424.Galvanic circle 142 passes through input terminal 1423 and output end respectively
1424 are electrically connected with external circuit (mainboard of the electronic equipment 1000 of example as shown in figure 1) respectively.Incorporated by reference to Fig. 3, in an example
In, conduct piece 15 is additionally provided on lens barrel 12, galvanic circle 142 is electrically connected by conduct piece 15 with external circuit.Specifically, it leads
Electric part 15 can be set in the outer surface of lens barrel 12, for example, side wall 122 outer surface 1221 and roof 123 outer surface
1231, the inner surface in lens barrel 12 also can be set.Input terminal 1423 and output end 1424 can pass through conductive material (example respectively
Such as conducting resinl) it is electrically connected with conduct piece 15, conduct piece 15 is electrically connected with external circuit, to form galvanic circle 142, conduct piece
15, the measure loop of external circuit composition.Under normal circumstances, the resistance value of measure loop is smaller, the electricity of measure loop output
Signal is larger.When there is open circuit in any one place position of measure loop, for example, fall off from lens barrel 12 when optical module 14 or
Person is displaced, and when will cause link position appearance open circuit of the conduct piece 15 with optical module 14, the resistance of measure loop is infinite
Greatly, so that the electric signal of measure loop output is smaller.In this way, the electric signal of measure loop is used as optical module 14
Abnormality detection foundation, improve the safety that uses of optical module 14.In one example, conduct piece 15 is conductive layer.It leads
Electric layer is made of metal.Conductive layer can be covered on the surface of lens barrel 12 by way of plating.So, on the one hand, conductive
Layer can improve the accuracy of measure loop detection, and on the other hand, since metal has shielding action, conductive layer is covered on lens barrel 12
External electromagnetic wave can be effectively reduced to interfere light source 13, i.e., conduct piece 15 has the function of electromagnetic shielding.
Referring to Fig. 4, in some embodiments, galvanic circle 142 includes input terminal 1423 and output end 1424, input
End 1423 and output end 1424 are electrically connected to form measure loop with light source 13 respectively.When optical module 14 is abnormal, detect back
Road disconnects.
Incorporated by reference to Fig. 3, specifically, photoelectricity mould group 10 further includes base plate line 16.Base plate line 16 in substrate 11 first
It is in Multi-layers distributing between face 111 and the second face 112.Base plate line 16 is from the exposure of the first face 111 to be used for and light source 13 and conduction
Part 15 is electrically connected, and base plate line 16 is from the exposure of the second face 112 to connect with external circuit.Light source 13 passes through routing and the first face
Base plate line 16 on 111 connects.Pad is formed on second face 112, base plate line 16 can pass through pad and external circuit
(such as mainboard of electronic equipment 1000) connection.(left end shown in Fig. 4 can be input terminal 1423 for one end of galvanic circle 142
Or output end 1424) be electrically connected with one end of the conduct piece 15 in left side, the other end and base plate line of the conduct piece 15 in left side
16 electrical connections, light source 13 are connected on base plate line 16, and base plate line 16 is also connect with one end of the conduct piece 15 on right side, right side
Conduct piece 15 the other end and the other end of galvanic circle 142 (right end shown in fig. 5 can be input terminal 1423 or defeated
Outlet 1424) electrical connection, ultimately form galvanic circle 142, conduct piece 15, base plate line 16, light source 13 measure loop (as scheme
Shown in 5).When the optical element 141 of optical module 14 ruptures, galvanic circle 142 is disconnected, and measure loop disconnects, at this time photoelectricity
Mould group 10 closes light source 13.When optical module 14 falls off or is displaced from photoelectricity mould group 10, measure loop can also break
It opens, photoelectricity mould group 10 can also close light source 13 at this time.In this way, light source 13 is accessed in measure loop, photoelectricity mould group 10 being capable of root
Judge whether optical module 14 is abnormal according to measure loop, and when optical module 14 is abnormal, closes light source 13 in time, improve photoelectricity
Mould group 10 uses security level.
Please continue to refer to Fig. 4, in some embodiments, connection line 1422 include the first sub- connection line 14221 and
Second sub- connection line 14222, the first sub- connection line 14221 are used to connect the conducting wire of interval first distance setting
1421, the second sub- connection line 14222 is used to connect the conducting wire 1421 of interval second distance setting.
Specifically, connection line 1422 both can connect the conducting wire 1421 of interval first distance setting, can also connect
Connect the conducting wire 1421 of interval second distance setting.Wherein, the conducting wire 1421 of interval first distance setting can pass through
One or more first sub- connection line 14221 connects, and the conducting wire 1421 of interval second distance setting can pass through one
A or multiple second sub- connection lines 14222 connect.By taking Fig. 4 as an example, the conducting wire of every two interval first distance setting
1421 be one group, for example, first conducting wire 1421 and second conducting wire 1421 from left to right are first group from left to right, from left to right the
Three conducting wires 1421 are second group with the 4th conducting wire 1421 from left to right, from left to right the 5th conducting wire 1421 with from left to right
6th conducting wire 1421 is third group, and the 7th conducting wire 1421 and the 8th conducting wire 1421 from left to right are the from left to right
Four groups, the conducting wire 1421 of four groups of interval first distances setting is formed altogether.The conductor wire of four groups of interval first distances setting
Road 1421 is disposed side by side on the surface of optical element 141.Wherein, the conducting wire 1421 in two adjacent groups is interval second distance
Setting, for example, first group of second conducting wire 1421 and between second group of first conducting wire 1421 is from left to right from left to right
It is arranged every second distance.The conducting wire 1421 of every group of interval first distance setting passes through the multiple first sub- connection lines 14221
Connection.The conducting wire 1421 of four groups of interval first distances setting is connected by the multiple second sub- connection lines 14222 again.For
The conducting wire 1421 of one group of interval first distance setting, when open circuit, i.e., one of conducting wire occurs in one of branch
1421 or connection line 1422 when disconnecting, another branch of the conducting wire 1421 of group interval first distance setting
It can still be connected, it is ensured that the electric signal that the conducting wire 1421 of group interval first distance setting can still export.For more
The conducting wire 1421 of group interval first distance setting, when open circuit occurs in one or more branch, but due to it
He can be connected branch, and galvanic circle 142 can still be connected.Such as the conducting wire that first group of interval first distance is arranged from left to right
One branch of the conducting wire 1421 that 1421 branch and from left to right second group of interval first distance are arranged breaks
Road, still, due to another branch of the conducting wire 1421 of the setting of first group of interval first distance from left to right and from left to right the
Another branch of the conducting wire 1421 of two groups of interval first distances setting can be connected, and third group interval from left to right
The branch of the conducting wire 1421 of first distance setting and the from left to right conducting wire 1421 of the 4th group of interval first distance setting
Branch can also be connected, therefore, electric signal can still flow through the whole surface of optical element 141, and galvanic circle 142 still can be with
Whether intact continue to test optical element 141.To sum up, two interval first distances are connected using the first sub- connection line 14221
The conducting wire 1421 of setting, and utilize the conducting wire of the second sub- connection of connection line 14222 interval second distance setting
1421, the probability for making galvanic circle 142 open circuit occur is smaller, reduces and a possibility that false failure occurs, improves abnormal inspection
The accuracy of survey.
For another example the conducting wire 1421 of Fig. 6, every three intervals first distance setting are one group, form four groups of intervals first altogether
The conducting wire 1421 of the conducting wire 1421 of distance setting, the setting of four groups of interval first distances is disposed side by side on optical element
On 141 surface.The conducting wire 1421 of every group of interval first distance setting is connected by the multiple first sub- connection lines 14221
It connects.The conducting wire 1421 of four groups of interval first distances setting is connected by the multiple second sub- connection lines 14222 again.For one
The conducting wire 1421 of group interval first distance setting, when open circuit, i.e., one of conducting wire occurs in one of branch
1421 or connection line 1422 when disconnecting, the other two branch of the conducting wire 1421 of group interval first distance setting
It can still be connected, it is ensured that the electric signal that the conducting wire 1421 of group interval first distance setting can still export.For more
The conducting wire 1421 of group interval first distance setting, when one of branch or the appearance open circuit of multiple branches, but by
It can be connected in other branches, galvanic circle 142 can still be connected.Such as the conduction that first group of interval first distance is arranged from left to right
One branch of the conducting wire 1421 that one branch of route 1421 and from left to right second group of interval first distance are arranged goes out
Existing open circuit, still, other two branch and a left side due to the conducting wire 1421 that first group of interval first distance is arranged from left to right
The other two branch for playing the conducting wire 1421 of second group of interval first distance setting can be connected, and third group from left to right
The branch of the conducting wire 1421 of interval first distance setting and the from left to right conducting wire of the 4th group of interval first distance setting
1421 branch can also be connected, and therefore, electric signal can still flow through the whole surface of optical element 141, and galvanic circle 142 is still
It is whether intact that optical element 141 can be continued to test.To sum up, compared in Fig. 4 embodiment every group setting two interval first away from
The mode of conducting wire 1421 from setting, the conducting wire of every group of setting three interval first distance settings in Fig. 6 embodiment
The probability that 1421 mode makes galvanic circle 142 open circuit occur is smaller, further reduced and a possibility that false failure occurs,
Further improve the accuracy of abnormality detection.
It should be noted that conducting wire 1421, the first sub- connection line 14221 and the second sub- connection line 14222
Quantity be not limited to two, three, can also be four, five or five or more.Also, it is spaced leading for first distance setting
Connection between electric line 1421 and the connection between the conducting wire 1421 of interval second distance setting are more complicated, conductive
The probability that open circuit occurs in circuit 142 is smaller, and it is lower a possibility that false failure occur.
In some embodiments, the distribution patterns of galvanic circle 142 include serpentine shape distribution patterns, palisade distribution map
One of case, rectangular-ambulatory-plane distribution patterns are a variety of.
It is conductive when galvanic circle 142 includes the conducting wire 1421 and connection line 1422 of interval first distance setting
The distribution patterns in circuit 142 are collectively constituted by the pattern of conducting wire 1421 and connection line 1422, wherein distribution patterns can be with
It for serpentine shape distribution patterns, palisade distribution patterns, or is rectangular-ambulatory-plane distribution patterns.The distribution patterns of galvanic circle 142 may be used also
Think the combination of a variety of distribution patterns, such as combination, the palisade distribution patterns of serpentine shape distribution patterns and rectangular-ambulatory-plane distribution patterns
With the combination of rectangular-ambulatory-plane distribution patterns etc..Certainly, the distribution patterns of galvanic circle 142 are not limited to the above-mentioned form enumerated, and may be used also
Think that the left side of optical element 141 is arranged in other forms, such as the distribution of straightway shape, input terminal 1423, output end 1424 is set
It sets on the right side of optical element 141, intermediate conducting wire 1421 is linearly distributed.By the way that reasonable distribution patterns, example is arranged
Such as the combination of serpentine shape distribution patterns, palisade distribution patterns, rectangular-ambulatory-plane distribution patterns or a variety of distribution patterns, galvanic circle 142
The area being covered on optical element 141 is bigger, expands the range of the detection of galvanic circle 142.
Referring to Fig. 3, in some embodiments, when depth acquisition device 100 is structure light depth camera, optics member
Part 141 is diffraction optical element (Diffractive Optical Elements, DOE) 143.It is set on diffraction optical element 143
It is equipped with diffraction micro structural 1431, diffraction micro structural 1431 is for expanding laser to form laser pattern.Due to diffraction micro structural
1431 be the diffraction principle based on light, using CAD, and by semiconductor chip fabrication process, on substrate or
The stepped ramp type or continuous relief structure (generally optical grating construction) that Traditional optics surface etch generates.Therefore, diffraction optics
Element 143 is with the coaxial a kind of optical element reproduced with high diffraction efficiency.In the present embodiment, laser is passing through diffraction
Different optical path differences is generated when micro-structure 1431, meets Bragg diffraction condition.In addition, the diffraction micro structural that design is different
1431, moreover it is possible to control the angle of divergence of laser and form the pattern of hot spot, to realize that laser forms the function of specific pattern.At one
In example, diffraction micro structural 1431 is arranged on light-emitting surface 1412, and galvanic circle 142 is arranged on incidence surface 1411.Due to spreading out
Penetrating micro-structure 1431 is fine structure, and diffraction micro structural 1431 and galvanic circle 142 are separately positioned on the two of optical element 141
Side avoids in the technical process that galvanic circle 142 is covered on diffraction micro structural 1431, destroys diffraction micro structural 1431.?
In another example, diffraction micro structural 1431 is arranged on incidence surface 1411, and galvanic circle 142 is arranged on light-emitting surface 1412.
Galvanic circle 142 is arranged on light-emitting surface 1412, can avoid the diffraction micro structural 1431 being arranged on incidence surface 1411, avoid
In the technical process that galvanic circle 142 is covered on diffraction micro structural 1431, diffraction micro structural 1431 is destroyed.In addition, diffraction
The inside of photoelectricity mould group 10 is arranged in micro-structure 1431, so that diffraction micro structural 1431 is not readily susceptible to extraneous steam, dust
Deng interference.
Please continue to refer to Fig. 3, in some embodiments, diffraction optical element 143 includes right with diffraction micro structural 1431
The diffraction region 1432 answered and around the installation region of diffraction region 1,432 1433.Installation region 1433 is for installing diffraction optics
Element 143.In one example, galvanic circle 142 is corresponding with diffraction region 1432.Specifically, when diffraction region 1432 is located at
On incidence surface 1411, when galvanic circle 142 is located on light-emitting surface 1412, region and diffraction region that galvanic circle 142 covers
1432 is corresponding.In this way, galvanic circle 142 can be when the optical element 141 of corresponding diffraction region 1432 be abnormal, to prevent light
The laser that source 13 emits just projects away without diffraction micro structural 1431, and burn user.In another example, galvanic circle
142 is corresponding (such as Fig. 3) with diffraction region 1432 and installation region 1433.Such as when optical element 141 is abnormal, such as photoelectricity
In the case that mould group 10 is by external force collision, be easily broken positioned at the installation region 1433 of 141 peripheral position of optical element or
It is displaced.The area and installation region 1433 and diffraction region 1432 that galvanic circle 142 covers are corresponding, in this way, preventing
When the optical element 141 of installation region 1433 is abnormal, can still it be connected positioned at the galvanic circle of diffraction region 1,432 142.
Referring to Fig. 3, in some embodiments, when depth acquisition device 100 is structure light depth camera, photoelectricity mould
Group 10 further includes collimating element 17.Collimating element 17 and diffraction optical element 143 are successively set in the optical path of light source 13.It is quasi-
Straight element 17 is used for the laser that collimated light source 13 emits, after diffraction optical element 143 is collimated for the collimated element 17 of diffraction
Laser.Collimating element 17 is arranged on lens barrel 12.Collimating element 17 and the combination of lens barrel 12 include engage, gluing etc..It is quasi-
Straight element 17 is lens, can be individual lens, which is convex lens or concavees lens；Or collimating element 17 is more pieces saturating
Mirror, more pieces of lens can be convex lens or concavees lens, or part is convex lens, is partially concavees lens.
Referring to Fig. 7, in some embodiments, when depth acquisition device 100 is flight time depth camera, optics
Element 141 is diffuser (Diffuser) 144.Diffuser 144 is arranged in the optical path of light source 13, and can spread the hair of light source 13
The laser penetrated.Diffuser 144 includes opposite incidence surface 1411 and light-emitting surface 1412.Incidence surface 1411 and light-emitting surface 1412 along
The light optical path that goes out of laser is set gradually.In one example, galvanic circle 142 can be set on light-emitting surface 1412, convenient for leading
Electrical circuit 142 is connect with external circuit.In another example, galvanic circle 142 also can be set on incidence surface 1411, make
The inside that photoelectricity mould group 10 is arranged in galvanic circle 142 is obtained, so that galvanic circle 142 is not readily susceptible to extraneous steam, dust
Deng interference.In another example, incidence surface 1411 and light-emitting surface 1412 can also be provided with galvanic circle 142.Due to entering
It is provided with galvanic circle 142 on smooth surface 1411 and light-emitting surface 1412, is not had but when the light-emitting surface 1412 of optical element 141 is abnormal
When influencing incidence surface 1411, such as optical element 141 is ruptured from light-emitting surface 1412 but without influence on incidence surface 1411, optics
Component 14 remains to carry out abnormality detection by the electric signal that the galvanic circle 142 on incidence surface 1411 exports；And work as optical element
141 incidence surface 1411 it is abnormal but without influence on light-emitting surface 1412 when, such as optical element 141 ruptures but from incidence surface 1411
Without influence on light-emitting surface 1412, optical module 14 remains to the electric signal exported by the galvanic circle 142 on light-emitting surface 1412
It carries out abnormality detection, for being only provided with galvanic circle 142 on incidence surface 1411 or light-emitting surface 1412, abnormality detection
Sensitivity it is higher.
In the description of this specification, reference term " certain embodiments ", " embodiment ", " some embodiment party
The description of formula ", " exemplary embodiment ", " example ", " specific example " or " some examples " means to combine embodiment or show
Example particular features, structures, materials, or characteristics described are contained at least one embodiment or example of the utility model.
In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or example.Moreover, description
Particular features, structures, materials, or characteristics can be in any one or more embodiments or example with suitable side
Formula combines.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two,
Three, unless otherwise specifically defined.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model
It inside can make changes, modifications, alterations, and variations to the above described embodiments, the scope of the utility model is by claim and its is equal
Object limits.
Claims (10)
1. a kind of optical module characterized by comprising
Optical element, the optical element is used to expand or spread laser；With
Galvanic circle, the galvanic circle are arranged on the optical element, the galvanic circle include multiple conducting wires with
And connection line, the connection line is for connecting multiple conducting wires, in the optical element exception, the conduction
Route and/or the connection line disconnect and the galvanic circle are disconnected.
2. optical module according to claim 1, which is characterized in that the connection line include the first sub- connection line and
Second sub- connection line, the first sub- connection line is used to connect the conducting wire of interval first distance setting, described
Second sub- connection line is used to connect the conducting wire of interval second distance setting.
3. optical module according to claim 1, which is characterized in that the optical element includes opposite incidence surface and goes out
Smooth surface, the incidence surface and the light-emitting surface are set gradually along the light optical path that goes out of the laser, and the optical element includes spreading out
Micro-structure is penetrated, for expanding the laser, the diffraction micro structural is arranged on the incidence surface diffraction micro structural, described
Galvanic circle is arranged on the light-emitting surface；Or
The diffraction micro structural is arranged on the light-emitting surface, and the galvanic circle is arranged on the incidence surface.
4. optical module according to claim 1, which is characterized in that the optical element is diffuser, the optics member
Part includes opposite incidence surface and light-emitting surface, and the incidence surface and the light-emitting surface are successively set along the light optical path that goes out of the laser
It sets, the galvanic circle is arranged on the incidence surface；And/or
The galvanic circle is arranged on the light-emitting surface.
5. optical module according to claim 1, which is characterized in that the distribution patterns of the galvanic circle include serpentine shape
One of distribution patterns, palisade distribution patterns, rectangular-ambulatory-plane distribution patterns are a variety of.
6. optical module according to claim 1, which is characterized in that the galvanic circle includes input terminal and output end,
The input terminal and the output end are electrically connected to form measure loop with external circuit respectively.
7. a kind of photoelectricity mould group characterized by comprising
Light source, the light source is for emitting laser；With
Optical module described in claim 1 to 5 any one, the optical module are arranged in the light optical path out of the light source
And it is used for the laser beam expanding or diffusion.
8. photoelectricity mould group according to claim 7, which is characterized in that the galvanic circle includes input terminal and output end,
The input terminal and the output end are electrically connected to form measure loop with the light source respectively；
In the optical module exception, the measure loop is disconnected.
9. a kind of depth acquisition device characterized by comprising
Photoelectricity mould group described in claim 7 or 8, the photoelectricity mould group are used to emit laser towards target object；With
Camera mould group, the camera mould group are used to receive the laser after target object reflection.
10. a kind of electronic equipment characterized by comprising
Shell；With
Depth acquisition device as claimed in claim 9, the depth acquisition device setting is on the housing.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821730257.2U CN208795947U (en) | 2018-10-24 | 2018-10-24 | Optical module, photoelectricity mould group, depth acquisition device and electronic equipment |
| PCT/CN2019/101848 WO2020082876A1 (en) | 2018-10-24 | 2019-08-21 | Optical component, photoelectric module, depth acquisition apparatus, and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821730257.2U CN208795947U (en) | 2018-10-24 | 2018-10-24 | Optical module, photoelectricity mould group, depth acquisition device and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208795947U true CN208795947U (en) | 2019-04-26 |
Family
ID=66212274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821730257.2U Expired - Fee Related CN208795947U (en) | 2018-10-24 | 2018-10-24 | Optical module, photoelectricity mould group, depth acquisition device and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208795947U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020082876A1 (en) * | 2018-10-24 | 2020-04-30 | 南昌欧菲生物识别技术有限公司 | Optical component, photoelectric module, depth acquisition apparatus, and electronic device |
| CN112533370A (en) * | 2019-09-03 | 2021-03-19 | 奇景光电股份有限公司 | Projector, three-dimensional sensing module and manufacturing method of projector |
-
2018
- 2018-10-24 CN CN201821730257.2U patent/CN208795947U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020082876A1 (en) * | 2018-10-24 | 2020-04-30 | 南昌欧菲生物识别技术有限公司 | Optical component, photoelectric module, depth acquisition apparatus, and electronic device |
| CN112533370A (en) * | 2019-09-03 | 2021-03-19 | 奇景光电股份有限公司 | Projector, three-dimensional sensing module and manufacturing method of projector |
| CN112533370B (en) * | 2019-09-03 | 2024-02-13 | 奇景光电股份有限公司 | Projector, three-dimensional sensing module, and method for manufacturing projector |
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Address after: 330013 east of Xueyuan 6th Road, south of Tianxiang Avenue, Nanchang hi tech Industrial Development Zone, Nanchang City, Jiangxi Province Patentee after: OFilm Microelectronics Technology Co.,Ltd. Address before: 330013 No.698 Tianxiang Avenue, high tech Zone, Nanchang City, Jiangxi Province Patentee before: NANCHANG OFILM BIO-IDENTIFICATION TECHNOLOGY Co.,Ltd. Address after: 330013 No.699 Tianxiang North Avenue, Nanchang hi tech Industrial Development Zone, Nanchang City, Jiangxi Province Patentee after: Jiangxi OMS Microelectronics Co.,Ltd. Address before: 330013 east of Xueyuan 6th Road, south of Tianxiang Avenue, Nanchang hi tech Industrial Development Zone, Nanchang City, Jiangxi Province Patentee before: OFilm Microelectronics Technology Co.,Ltd. |
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