CN209167791U - A kind of optical projection mould group, sensing device and equipment - Google Patents
A kind of optical projection mould group, sensing device and equipment Download PDFInfo
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- CN209167791U CN209167791U CN201821501268.3U CN201821501268U CN209167791U CN 209167791 U CN209167791 U CN 209167791U CN 201821501268 U CN201821501268 U CN 201821501268U CN 209167791 U CN209167791 U CN 209167791U
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Abstract
The utility model is suitable for optics and electronic technology field, provides a kind of optical projection mould group, is sensed on the pattern beam to measured target object with predetermined pattern for projecting.The optical projection mould group includes light source, optical element, the cover sheet and detection unit that optical element light emission side is arranged in.The detection unit includes detection circuit and processor.The detection circuit includes detecting part and interconnecting piece.The detecting part is arranged in optical projection mould group and needs on detected component to sense the electrology characteristic changed with unit under test state.The interconnecting piece connection detecting part and processor are to form a measure loop.The variation of the electrology characteristic in processor analysis detection circuit can determine whether the unit under test is intact.The utility model also provides a kind of sensing device and equipment.
Description
Technical field
The utility model belongs to optical technical field more particularly to a kind of optical projection mould group, sensing device and equipment.
Background technique
Existing three-dimensional (Three Dimensional, 3D) sensing mould group generallys use laser of the emitted energy compared with concentration
Device projects sensing light pattern as light source, so the light emission side that light source is once arranged in is used to form the optics of projection light pattern
If breakage occurs in element, the laser of high-energy, which can shine directly on the eyes of user, to be damaged.
Summary of the invention
The technical problem to be solved by the utility model is to provide a kind of optical projection mould group, sensing device and equipment,
It is whether intact and light source is avoided directly to hurt user's eye to can detecte out optical element that the optical projection mould group uses
Eyeball.
The utility model embodiment provides a kind of optical projection mould group, for projecting the pattern beam with predetermined pattern
It is sensed on to measured target object.The optical projection mould group includes light source, optical element, setting in optical element light emission side
Cover sheet and detection unit.The detection unit includes detection circuit and processor.The detection circuit includes detecting part
And interconnecting piece.The detecting part be arranged in optical projection mould group need on detected component to sense with unit under test state and
The electrology characteristic of variation.The interconnecting piece connection detecting part and processor are to form a measure loop.The processor analysis inspection
The variation of the electrology characteristic on survey time road can determine whether the unit under test is intact.
In some embodiments, the unit under test includes optical element and/or cover sheet.
In some embodiments, the optical element include collimating element, beam-expanding element, microlens array, grating and
Diffraction optical element.
In some embodiments, the electrology characteristic includes electric current, voltage, resistance and the capacitor in measure loop.
In some embodiments, the detecting part is to be formed in the conductor wire that unit under test surface is in predetermined pattern distribution
Road.The conducting wire is independent one and is covered on the full surface of unit under test with not repeating intersection.
In some embodiments, the processor compares electric current and the intact feelings of preset unit under test in measure loop
Normalized current under condition in measured measure loop.If electric current and the normalized current in the measure loop sensed
Difference value then judges the unit under test there are flaws beyond error range.
In some embodiments, the pattern of the detecting part is the square waveform pattern periodically bent.
In some embodiments, the detecting part is the electricity that a pair is respectively formed on unit under test opposite sides surface
Pole.The electrode and unit under test constitute capacitance structure.
In some embodiments, the processor compare sensed detecting part capacitance and preset tested portion
The standard capacitor-value of measured detecting part under part fine status.If the capacitance of the detecting part sensed and the standard electric
The difference value of capacitance then judges the unit under test there are flaws beyond error range.
In some embodiments, the optical projection mould group further includes support base and circuit base, the light source setting
In circuit base, the support base is arranged in circuit base, and the optical element and cover sheet are set up by support base
In the optical path of light source light emission side, a part of the interconnecting piece is embedded in the support base, another portion of the interconnecting piece
Divide and be formed in circuit base, corresponds to detecting part pattern on one end that the support base and optical element or cover sheet connect
Endpoint forms the first tie point connecting with the endpoint, and part of the interconnecting piece inside support base is prolonged from the first tie point
It extends to and accordingly forms the second tie point at the other end that support base is connect with circuit base, the interconnecting piece is in circuit substrate
On corresponding second tie point in part be respectively formed the third tie point being attached thereto, the third tie point is existed by interconnecting piece
Part route on circuit substrate is connect to form the measure loop with processor.
The utility model also provides a kind of sensing device, for sensing the three-dimensional information of measured target object comprising above-mentioned
Optical projection mould group described in embodiment and sensing mould group.The sensing mould group is for sensing the optics module in tested mesh
The predetermined pattern projected on mark object and the image by analyzing the predetermined pattern obtain the three-dimensional information of tested subject matter.
The utility model also provides a kind of equipment, including sensing device described in above embodiment.The equipment according to
The three-dimensional information of the measured target object that the sensing device is sensed executes corresponding function.
Optical projection mould group, sensing device and equipment provided by the utility model embodiment are arranged by comparing in quilt
The variation of the electrology characteristic of the sensing part of component is surveyed easily to detect the integrity degree of the used component of optical projection mould group,
To prevent light source from appearing from the flaw of optical element and damaging to the eyes of user.
The additional aspect and advantage of the utility model embodiment will be set forth in part in the description, partially will be under
Become obvious in the description in face, or is recognized by the practice of the utility model embodiment.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the detection unit that the utility model first embodiment provides.
Fig. 2 is the structural schematic diagram of detecting part pattern in Fig. 1.
Fig. 3 is the structural schematic diagram for the detection unit that the utility model second embodiment provides.
Fig. 4 is the structural schematic diagram for the optical projection mould group that the utility model third embodiment provides.
Fig. 5 is the contact point structure schematic diagram in Fig. 4 on circuit substrate.
Fig. 6 is the structural schematic diagram for the sensing device that the 4th embodiment of the utility model provides.
Fig. 7 is the structural schematic diagram for the equipment that the 5th embodiment of the utility model provides.
Fig. 8 is a kind of step flow chart of detection method provided by the utility model.
Specific embodiment
The embodiments of the present invention is described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein
Same or similar label indicates same or similar element or element with the same or similar functions from beginning to end.Lead to below
It crosses the embodiment being described with reference to the drawings to be exemplary, is only used for explaining the utility model, and should not be understood as practical to this
Novel limitation.In the description of the present invention, it should be understood that term " first ", " second " are only used for describing, without
It can be interpreted as indication or suggestion relative importance or implicitly indicate the quantity of indicated technical characteristic or put in order.By
This defines " first ", the technical characteristic of " second " can explicitly or implicitly include one or more technology
Feature.The meaning of " plurality " is two or more in the description of the present invention, unless otherwise clearly specific limit
It is fixed.
In the description of the present invention, it should be noted that unless otherwise specific regulation or limiting, term " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integration
Connection；It can be mechanical connection, be also possible to be electrically connected or be in communication with each other；It can be directly connected, intermediate matchmaker can also be passed through
Jie is indirectly connected, and can be the connection inside two elements or the interaction relationship between two elements.For this field
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
Following disclosure provides many different embodiments or example is used to realize the different structure of the utility model.
In order to simplify the disclosure of the utility model, hereafter only to the component of specific examples and being set for describing.Certainly, they are only
Example, and purpose does not lie in limitation the utility model.In addition, the utility model can reuse reference in different examples
Number and/or reference letter, this reuse are to simplify and clearly state the utility model, itself does not indicate institute
The particular kind of relationship between various embodiments and/or setting discussed.In addition, the utility model is provided in the following description
Various specific techniques and material are only the example for realizing technical solutions of the utility model, but those of ordinary skill in the art answer
This recognizes that the technical solution of the utility model can also be by other techniques for not describing hereafter and/or other materials come real
It is existing.
Further, described feature, structure can be incorporated in one or more embodiment party in any suitable manner
In formula.In the following description, many details are provided so as to fully understand the embodiments of the present invention.So
And one of ordinary skill in the art would recognize that, even if without one or more in the specific detail, or using other knots
Structure, constituent element etc. can also practice the technical solution of the utility model.In other cases, it is not shown in detail or describes known knot
Structure or operation to avoid fuzzy the utility model emphasis.
As shown in Figure 1, the utility model first embodiment provides a kind of detection unit 1, thrown for detecting an optics
Whether the component of shadow mould group 10 is damaged.The optical projection mould group 10 includes light source 12, optical element 14 and setting in optics member
The cover sheet 16 of 14 light emission side of part.The light beam that the light source 12 issues is formed after the modulation of optical element 14 with specific
The outgoing beam of function projects away.The optical element 14 includes but is not limited to collimating element, beam-expanding element, lenticule battle array
One of column, grating and diffraction optical element (Diffractive Optical Elements, DOE) and combinations thereof.
In the present embodiment, the optical projection mould group 10 is the three-dimensional sense for sensing measured target object three-dimensional data
Survey device.The light beam can be the light beam with specific wavelength according to sensing principle and application scenarios.For example, can be infrared
Or near infrared light, wave-length coverage are 750 nanometers (Nanometer, nm) to 1650nm.
The detection unit 1 includes detection circuit 102 and processor 104.The detection circuit 102 includes detecting part 101
And interconnecting piece 103.The detecting part 101 is arranged in optical projection mould group 10 and needs on detected component to sense unit under test
State change.The interconnecting piece 103 connect detecting part 101 and processor 104 with by sensing signal be transmitted to processor 104 into
Row analysis processing.The processor 104 and the detecting part 101 and interconnecting piece 103 of detection circuit 102 are interconnected so as to form an inspection
Survey time road.Because the detection circuit 102 is arranged on the unit under test, the state change of the unit under test can cause to detect
Electrology characteristic in circuit changes therewith.Therefore, the processor 104 can by the variation of the electrology characteristic in analysis detection circuit
Judge whether the unit under test is intact.The unit under test can be light beam in optical projection mould group 10 have by protection cap
Plate 16 and/or optical element 14.The electrology characteristic includes but is not limited to electric current, voltage, resistance, capacitor in measure loop
Deng.In the present embodiment, the detecting part 101 is formed on the surface of the optical element 104, such as: the table of the DOE
On face.The processor 104 judges whether the DOE is intact according to the electric current in the measure loop sensed.
As shown in Fig. 2, the detecting part 101 is to be formed on parts surface in the conducting wire of predetermined pattern distribution.Institute
The pattern for stating detecting part 101 is independent one conducting wire for not repeating intersection, can cover the full surface of unit under test.At this
In embodiment, the pattern of the detecting part 101 is the square waveform pattern periodically bent.The square waveform pattern can be from quilt
The wherein end margin for surveying parts surface bends the edge for extending into the opposite other end on place surface, can also be from one of them
A little setting out on face does not repeat all surface of the route traversal unit under test of intersection along independent one.It is understood that
According to required detection accuracy, the repetition period of the square waveform pattern can be adjusted.The square waveform pattern period is got over
Short, then pattern is distributed closeer on unit under test surface, and the precision that can be measured is higher.
The material of the detecting part 101 can be transparent or nontransparent conductive material, pass through plated film and/or etch process
The preset pattern is formed on the surface of unit under test.If the surface where the detecting part 101 is the surface that optical path is passed through,
Then the detecting part 101 need to be made of transparent conductive material.If the surface where the detecting part 101 is not the table that optical path is passed through
Face, then the material of the detecting part 101 can may be nontransparent conductive material for transparent conductive material.In this embodiment party
In formula, the detecting part 101 is formed on the incidence surface or light-emitting surface of DOE, and the detecting part 101 is formed for transparent conductive material
Conducting wire pattern.The transparent conductive material can be but be not limited to tin indium oxide (Indium Tin Oxide, ITO),
Cadmium stannate (Cadmium Tin Oxide, CTO) or metaindic acid cadmium (CdIn2O4, CIO).
The electricity with the variation of unit under test state relation that the processor 104 is used to be sensed according to detection circuit 102
Characteristic judges whether unit under test is intact.The sense measured being preset in the processor 104 under unit under test fine status
The standard electrical characteristic in survey portion 101.The electrology characteristic for the detecting part 101 that the processor 104 senses when will test with it is described
Preset standard electrical characteristic is compared.If the electrology characteristic of the detecting part 101 sensed and the standard electrical characteristic phase
With or difference value in preset error range, then the processor 104 judges unit under test to be intact.If the sense sensed
The difference value of the electrology characteristic in survey portion 101 and the standard electrical characteristic exceeds error range, then the processor 104 judges quilt
Surveying component, there are flaws.
In the present embodiment, the optical projection mould group 10 is to fill for sensing the sensing of measured target object three-dimensional data
It sets.The unit under test is DOE.The detecting part 101 being formed on the surface DOE is by the electrically conducting transparent with predetermined resistance value
Material is made.Electric current in the case where DOE is intact, when applying burning voltage in measure loop in the measure loop that senses
It should keep constant.If breakage occurs in the surface DOE where the detecting part 101, breakage causes resistance to tend to because of disconnection
In infinity, the electric current in measure loop can be obviously reduced at this time.Therefore, if the detecting part 101 senses in measure loop
Current decay degree be more than preset range, then the processor 104 judge DOE to be damaged.
In the present embodiment, the detecting part 101 is arranged on the incidence surface or light-emitting surface of DOE.It is understood that
The detecting part 101 also can be set in the same component or different component, such as: cover sheet and/or optical element, it is more
On a surface and whether the different measure loops of corresponding building are intact come the parts surface where sensing respectively.
It is understood that the processor 104 can also be connected with the light source 12 of the optical projection mould group 10, with
Opening or closing for the light source 12 is controlled according to above-mentioned judging result.If the processor 104 judges the component to be complete
Alright, then the light source 12 is allowed to keep normal operating conditions.If the processor 104 judges the component, there are flaws, close
The brightness for closing the light source 12 or the decrease light source 12 directly projects wound from breakage to avoid the high-energy light beam of light source 12
Evil arrives the eyes of user.
As shown in figure 3, the utility model second embodiment provides a kind of detection unit 2, with first embodiment
In detection unit 1 it is essentially identical, the main distinction be the detecting part 201 be a pair be respectively formed at unit under test with respect to two
Electrode on side surface.The electrode and unit under test constitute capacitance structure.The detection circuit 202 is preset steady by applying
The electrology characteristic of the sensed unit under test of constant voltage is the capacitance of the unit under test.If the unit under test is intact,
The capacitance of the unit under test sensed remains unchanged.If the unit under test is damaged, the unit under test sensed
Capacitance can occur significantly to change.The processor 104 passes through the unit under test capacitance that measures in real time of comparison and intact
Standard capacitor-value measured by unit under test can determine whether current unit under test is intact.
The electrode of the detecting part 201 can be separately positioned on unit under test and be on the opposite flank in optical path, at this time
The electrode is made of transparent conductive material.The electrode of the detecting part 201 can also be separately positioned on unit under test and be not at
On other opposite flanks in optical path, the electrode can be made of transparent conductive material at this time, can also be led by nontransparent
Electric material is made.
In the present embodiment, DOE is arranged in not in the both side surface of emitting light path in the electrode of the detecting part 201.
Be understood that when, in other embodiments, the electrode of the detecting part 201 also can be set in the same component or difference
Component, such as: cover sheet and/or optical element, opposite sides surface on.
Referring to Figure 4 together and Fig. 5, the utility model third embodiment provide a kind of optical projection mould group 30, can
Detect the integrality of used component.The optical projection mould group 30 includes light source 32, optical element 34, cover sheet 36, branch
Support seat 35, circuit base 38 and the detection unit 1 as described in above-mentioned first or second embodiment.
The circuit base 38 may include circuit board 380 and heat-radiating substrate 382.The circuit board 380 can be printing
Circuit board, flexible circuit board or Rigid Flex.The heat-radiating substrate 382 plays the role of heat dissipation and support is strengthened.The electricity
Road plate 380 is arranged on heat-radiating substrate 382.The light source 32 is arranged on the circuit board 380.The setting of support base 35 exists
In circuit base 38.The optical element 34 and cover sheet 36 are erected at the optical path of 32 light emission side of light source by support base 35
On.The light that the light source 32 issues forms the outgoing beam with specific function after the modulation of optical element 34.The inspection
Unit 1 is surveyed by sensing the electrology characteristic variation for the detecting part 101 being arranged on unit under test is to judge the unit under test
It is no intact.
The support base 35 is for being isolated the components such as extraneous natural light and placement optical element 34, cover sheet 36.Institute
Stating support base 35 can be hollow square and/or rectangular parallelepiped structure, be also possible to hollow cylindrical body or other suitable knots
Structure.The support base 35 can by one of thermally conductive ceramics, plastics or alloy material or it is a variety of pass through injection molding or pressing mold
Technique is integrally formed, if detachable dry part can also be made into, discrete processing combination forming.The one of the interconnecting piece 103
Part is embedded in the support base 35.Another part of the interconnecting piece 103 may be formed in circuit base 38.The processing
Device 104 may be provided in circuit base 38, also can be set on other hosts outside optical projection mould group 30 and passes through company
The circuit base 38 is connect to receive sensing signal.
Specifically, detecting part 101 is corresponded on one end that the support base 35 is connected with optical element 34 or cover sheet 36
The endpoint of pattern forms the first tie point 1030 connecting with the endpoint.Portion of the interconnecting piece 103 inside support base 35
Divide from extending to the other end that support base 35 is connect with circuit base 38 from the first tie point 1030 and accordingly forms the second company
Contact 1031.Corresponding second tie point 1031 in part of the interconnecting piece 103 on circuit substrate 38, which is respectively formed, to be attached thereto
Third tie point 1032.The third tie point 1032 passes through part route of the interconnecting piece 103 on circuit substrate 38 and place
Device 104 is managed to connect.To which detecting part 101 and interconnecting piece 103 and the processor 104 of the detection circuit 102 are interconnected to form
Measure loop.
As shown in fig. 6, the 4th embodiment of the utility model provides a kind of sensing device 40, it is used to sense measured target
The three-dimensional information of object.The spatial information includes but is not limited to the three-dimensional information on measured target object surface, measured target object in sky
Between in location information, the dimension information etc. of measured target object other 3 D stereo information relevant to measured target object.Felt
The spatial information of the measured target object measured can be used for identifying measured target object or construct the 3 D stereo mould of measured target object
Type.
The sensing device 40 includes the optical projection mould group 10 as provided by above-mentioned the first to three embodiment and sensing mould
Group 4.The optical projection mould group 1 carries out sensing identification for projecting in particular beam to measured target object.The sensing mould group 4
For sense specific image that the optical projection mould group 1 projects on measured target object and by analyze the specific image come
Sense the correlation space information of tested subject matter.
In the present embodiment, the sensing device 40 is to sense the three-dimensional information on measured target object surface and identify accordingly
The 3D face authentification device of measured target object identity.
As shown in fig. 6, the 5th embodiment of the utility model provides a kind of equipment 50, for example, it is mobile phone, laptop, flat
Plate computer, touch-control interaction screen, door, the vehicles, robot, automatic numerical control lathe etc..The equipment includes that at least one is above-mentioned
Sensing device 40 provided by 4th embodiment.In the present embodiment, the sensing device 40 is used in measured target object
On project default light pattern to sense the three-dimensional data of measured target object.The equipment 70 is used for according to the sensing device 40
Sensing result executes corresponding function to correspond to.The corresponding function includes but is not limited to unlock after identifying user's identity, branch
It pays, start the feelings for utilizing depth learning technology to judge user after preset application program, avoidance, identification user's countenance
Any one or more in thread and health condition.
As shown in fig. 7, the utility model also provide it is a kind of using the detection unit 1 detection optics projective module group 10 in
The whether intact detection method of component, the optical projection mould group 10 include light source 12 and are arranged on 12 emitting light path of light source
The components such as optical element 14, cover sheet 16.The light beam that the light source 12 issues forms tool after the modulation of optical element 14
There is the outgoing beam of specific function to project away.The detection method includes the following steps:
Step S01, forms conductive pattern on unit under test.The conductive pattern is covered on unit under test surface.Institute
Stating conductive pattern is independent one conducting wire for not repeating intersection.The conductive pattern is made of an electrically conducting material.If described lead
Surface where electrical pattern is the surface that optical path is passed through, then the conductive pattern need to by transparent conductive material, such as: ITO, system
At.If the surface where the conductive pattern is not the surface that optical path is passed through, the material of the detecting part can lead to be transparent
Electric material may be nontransparent conductive material, such as: conductive metal etc..The optical element 14 includes but is not limited to collimate
Element, beam-expanding element, microlens array, grating and diffraction optical element (Diffractive Optical Elements, DOE)
One of and combinations thereof.
In the present embodiment, the conductive pattern is the square waveform pattern periodically bent, from unit under test surface
The opposite other end edge on surface where wherein end margin bending extends into.It is understood that according to required detection
The repetition period of precision, the square waveform pattern can be adjusted.The square waveform pattern period is shorter, then pattern is in tested portion
Part surface is distributed closeer, and the precision that can be measured is higher.
In other embodiments, the conductive pattern can also be the electrode film on the opposite two sides of unit under test
Layer.
Step S02 senses the variation of the conductive pattern electrology characteristic.The electrology characteristic includes but is not limited to conductive pattern
The electric current in measure loop, voltage, resistance, capacitor where case etc..Corresponding conduction is selected according to the electrology characteristic sensed
Pattern.Such as: if the electrology characteristic to be sensed is electric current, the conductive pattern is be formed in unit under test surface independent
One does not repeat the conducting wire of intersection.If the electrology characteristic to be sensed is capacitor, the conductive pattern is unit under test
Electrode film layer in opposite both side surface.
Step S03 compares and measures under the electrology characteristic and preset unit under test fine status of sensed conductive pattern
The conductive pattern normalized optical characteristic whether in preset error range.
The intact degree of the unit under test influences whether the electrology characteristic for the conductive pattern being disposed thereon.Such as: if
There is breakage in the somewhere surface of unit under test, and the conductive pattern being formed on unit under test surface can disconnect here, to lead
The electric current for causing the resistance of the measure loop where conductive pattern to increased dramatically and sensed sharply is reduced.Similarly, if by institute
Unit under test is stated as capacitor dielectric, damaged unit under test is because the change of own physical property is so that its dielectric constant also can be with
Change.Therefore, electricity of the unit under test as capacitor dielectric is sensed by the conductive pattern being formed on unit under test
Capacitance variation can also correspond to judge whether unit under test is intact.
Step S04, if the optical characteristics of the conductive pattern sensed and the preset standard electrical characteristic are identical or poor
Different value then judges unit under test to be intact in preset error range.
Step S05, if the difference between the electrology characteristic and the preset standard electrical characteristic of the conductive pattern of sensing
Value exceeds preset error range, then judges that there are flaws for unit under test.
Step S06 allows the light source to keep normal operating conditions if the component is judged as intact.
Step S07, if the component is judged as closing the light source there are flaw or turning down shining for the light source
Energy hurts by the flaw on optical element the eyes of user to avoid the high-energy light beam of light source.
Compared with prior art, detection unit provided by the utility model, optical projection mould group and detection method, can be with
Whether the component easily detected in optics projective module group is damaged so that the light for preventing the light source of optical projection mould group from being issued is saturating
The injury crossing the breakage direct irradiation user's eyes of optical element and may cause.
In the description of this specification, reference term " embodiment ", " certain embodiments ", " schematically implementation
What the description of mode ", " example ", " specific example " or " some examples " etc. meant to describe in conjunction with the embodiment or example
Particular features, structures, materials, or characteristics are contained at least one embodiment or example of the utility model.In this explanation
In book, schematic expression of the above terms are not necessarily referring to identical embodiment or example.Moreover, the specific spy of description
Sign, structure, material or feature can be combined in any suitable manner in any one or more embodiments or example.
The foregoing is merely the better embodiments of the utility model, are not intended to limit the utility model, it is all
It is practical new to should be included in this for made any modifications, equivalent replacements, and improvements etc. within the spirit and principles of the utility model
Within the protection scope of type.
Claims (12)
1. a kind of optical projection mould group, it is characterised in that: for projecting the pattern beam with predetermined pattern to measured target object
On sensed, the optical projection mould group include light source, optical element, the cover sheet that optical element light emission side is set and
Detection unit, the detection unit include detection circuit and processor, and the detection circuit includes detecting part and interconnecting piece, described
Detecting part is arranged in optical projection mould group and needs on detected component to sense the electricity changed with unit under test state spy
Property, to form measure loop, the electricity in processor analysis detection circuit is special for the interconnecting piece connection detecting part and processor
The variation of property is to judge whether the unit under test is intact.
2. optical projection mould group as described in claim 1, which is characterized in that the unit under test include optical element and/or
Cover sheet.
3. optical projection mould group as described in claim 1, which is characterized in that the optical element includes collimating element, expands
Element, microlens array, grating and diffraction optical element.
4. optical projection mould group as described in claim 1, which is characterized in that the electrology characteristic includes the electricity in measure loop
Stream, voltage, resistance and capacitor.
5. the optical projection mould group as described in any one of claim 1-3, which is characterized in that the detecting part is to be formed in
Unit under test surface is in the conducting wire of predetermined pattern distribution, and the conducting wire is independent one and does not repeat the covering of intersection ground
In the full surface of unit under test.
6. optical projection mould group as claimed in claim 5, which is characterized in that the processor compares the electric current in measure loop
With the normalized current in measure loop measured under preset unit under test fine status, if in the measure loop sensed
Electric current and the difference value of the normalized current then judge the unit under test beyond error range there are flaws.
7. optical projection mould group as claimed in claim 5, it is characterised in that: the pattern of the detecting part is periodically bent
Square waveform pattern.
8. the optical projection mould group as described in any one of claim 1-3, which is characterized in that the detecting part is a pair of point
The electrode not being formed on unit under test opposite sides surface, the electrode and unit under test constitute capacitance structure.
9. optical projection mould group as claimed in claim 8, which is characterized in that the processor compares sensed detecting part
Capacitance and preset unit under test fine status under measured detecting part standard capacitor-value, if the sensing sensed
The difference value of the capacitance in portion and the standard capacitor-value beyond error range then judges the unit under test, and there are flaws.
10. optical projection mould group as described in claim 1, which is characterized in that the optical projection mould group further includes support base
And circuit base, the light source are arranged in circuit base, the support base is arranged in circuit base, the optical element and
Cover sheet is located in the optical path of light source light emission side by supporting seat frame, and a part of the interconnecting piece is embedded in the support base
Interior, another part of the interconnecting piece is formed in circuit base, and the support base is connect with optical element or cover sheet
The endpoint that detecting part pattern is corresponded on one end forms the first tie point connecting with the endpoint, and the interconnecting piece is in support base
The part in portion accordingly forms the second connection from extending to the other end that support base is connect with circuit base from the first tie point
Point, corresponding second tie point in part of the interconnecting piece on circuit substrate are respectively formed the third tie point being attached thereto, institute
Third tie point is stated to be connect with processor by part route of the interconnecting piece on circuit substrate to form the measure loop.
11. a kind of sensing device, it is characterised in that: for sensing the three-dimensional information of measured target object comprising such as claim 1
To optical projection mould group described in any one of 10 and sensing mould group, the sensing mould group is for sensing the optical projection mould
Predetermined pattern and the image by analyzing the predetermined pattern that group projects on measured target object obtain the three of tested subject matter
Tie up information.
12. a kind of equipment, it is characterised in that: including the sensing device described in claim 11, the equipment is according to the sensing
The three-dimensional information of the measured target object that device is sensed executes corresponding function.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821501268.3U CN209167791U (en) | 2018-09-12 | 2018-09-12 | A kind of optical projection mould group, sensing device and equipment |
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|---|---|---|---|
| CN201821501268.3U CN209167791U (en) | 2018-09-12 | 2018-09-12 | A kind of optical projection mould group, sensing device and equipment |
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| CN209167791U true CN209167791U (en) | 2019-07-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109240029A (en) * | 2018-09-12 | 2019-01-18 | 深圳阜时科技有限公司 | A kind of optical projection mould group, sensing device and equipment |
| US11126823B2 (en) | 2019-11-27 | 2021-09-21 | Himax Technologies Limited | Optical film stack, changeable light source device, and face sensing module |
-
2018
- 2018-09-12 CN CN201821501268.3U patent/CN209167791U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109240029A (en) * | 2018-09-12 | 2019-01-18 | 深圳阜时科技有限公司 | A kind of optical projection mould group, sensing device and equipment |
| US11126823B2 (en) | 2019-11-27 | 2021-09-21 | Himax Technologies Limited | Optical film stack, changeable light source device, and face sensing module |
| TWI744769B (en) * | 2019-11-27 | 2021-11-01 | 奇景光電股份有限公司 | Optical film stack, changeable light source device, and face sensing module |
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