CN110530283A - Project structured light device and its manufacturing method - Google Patents
Project structured light device and its manufacturing method Download PDFInfo
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- CN110530283A CN110530283A CN201810502519.8A CN201810502519A CN110530283A CN 110530283 A CN110530283 A CN 110530283A CN 201810502519 A CN201810502519 A CN 201810502519A CN 110530283 A CN110530283 A CN 110530283A
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- Prior art keywords
- project structured
- structured light
- diffractive
- light device
- optical
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/22—Measuring arrangements characterised by the use of optical techniques for measuring depth
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- General Physics & Mathematics (AREA)
- Diffracting Gratings Or Hologram Optical Elements (AREA)
Abstract
One project structured light device and its manufacturing method.Project structured light device is suitable for depth camera, comprising: an optical transmitting set, wherein the optical transmitting set has a projected area in an emitting side, wherein the projected area is for emitting light；One diffractive-optical element, wherein the diffractive-optical element has a diffraction region, the light for the transmitting of optical transmitting set described in diffraction；An and supporting element, wherein diffractive-optical element described in the supports support is in the emitting side of the optical transmitting set, so that the projected area and the diffraction region are corresponding, so that the light that the projected area of the optical transmitting set emits is directly by the diffraction region diffraction of the diffractive-optical element.
Description
Technical field
The present invention relates to depth camera field, particularly a project structured light device and its manufacturing method.
Background technique
Realize that the technical solution of depth camera has very much, mainstream scheme has binocular scheme, TOF scheme and structure light scheme.
Cost is relatively low for binocular scheme, but the biggest problems are that realize that algorithm needs very high computing resource, causes real-time very poor,
And substantially with resolution ratio, detection accuracy hook.That is, resolution ratio is higher, it is desirable that precision is higher, then calculate it is more complicated,
Meanwhile pure binocular scheme is illuminated by the light, object texture property influences.
Structure light scheme is the complexity and robustness problem in order to solve binocular ranging algorithm and proposes.Structure light method
Independent of the color and texture of object itself, the matching of fast robust is realized using the method for actively projecting known pattern
Characteristic point can reach higher precision, also greatly expand the scope of application.With the gradually development of structured light technique and complete
Kind, structure light depth camera is also increasingly received by the market, and especially it causes much to move manufacturer in the application of mobile terminal
Concern, such as the preposition camera module of Iphone X take pattern light technology carry out recognition of face unlock.
Structure light depth camera groundwork process be by after project structured light to determinand surface by the height of determinand
Modulation, the structure light modulated are acquired through camera system, and the three-dimensional of measured object can be obtained by being sent in computer after analytical calculation
Face graphic data.
And the grenade instrumentation that existing structure optical depth camera uses includes an optical transmitting set, a collimating mirror and an optical diffraction
Element, wherein the collimating mirror is arranged between the optical transmitting set and the diffractive-optical element.The optical transmitting set hair
It penetrates light to be collimated by the collimating mirror, then by the diffractive-optical element diffraction or after replicating, is projected to extraterrestrial target surface.
Summary of the invention
It is an object of the present invention to provide a project structured light device and its manufacturing methods, wherein an optical diffraction
Element is supported on an optical transmitting set, the light of direct one optical transmitting set of diffraction transmitting.
It is another object of the present invention to provide a project structured light device and its manufacturing methods, wherein the optics
Diffraction element and the optical transmitting set spacing are smaller, it is ensured that the light that the optical transmitting set issues can be preferably by the optics
Diffraction element diffraction.
It is another object of the present invention to provide a project structured light device and its manufacturing methods, wherein a supporting element
Between the optical transmitting set and the diffractive-optical element, the diffractive-optical element is supported, so that the optical diffraction
Element can be fixed on the optical transmitting set.
It is another object of the present invention to provide a project structured light device and its manufacturing methods, wherein the optics
One diffraction region of diffraction element and a projected area of the optical transmitting set are corresponding.
It is another object of the present invention to provide a project structured light device and its manufacturing methods, wherein the support
Part is annular, to prevent light leakage between the optical transmitting set and the diffractive-optical element.
It is another object of the present invention to provide a project structured light device and its manufacturing methods, wherein the support
Part is embodied as a trapezium structure, when so as to form the supporting element, mold or printing plate is facilitated to be detached from.
It is another object of the present invention to provide a project structured light device and its manufacturing methods, wherein the support
Part is formed by chip adhesive film moulding material (DAF, Die Attach Film), on the one hand can make the supporting element to be formed
Height is smaller, to keep the diffractive-optical element and the optical transmitting set spacing smaller, on the other hand makes the supporting element liter
Temperature rise pressure can restore viscosity, assist without additional glue etc..
It is another object of the present invention to provide a project structured light device and its manufacturing methods, wherein the support
Part is formed by photoresist, and the supporting element height to be formed on the one hand can be made smaller, thus make the diffractive-optical element and
The optical transmitting set spacing is smaller, and the characteristic that on the other hand can use photoresist makes the formation process of the supporting element more may be used
Control.
It is another object of the present invention to provide a project structured light device and its manufacturing methods, wherein the support
Part can also be formed by common binding, such as glue etc., to reduce cost.
It is another object of the present invention to provide a project structured light device and its manufacturing methods, wherein the support
Part is arranged at a non-projected area of the optical transmitting set, so that the supporting element be avoided to shut out the light light.
It is another object of the present invention to provide a project structured light device and its manufacturing methods, wherein at least one to use
It is arranged at the non-projected area part on the outside of the supporting element in the tie point for connecting a wiring board, to avoid gold thread
The spacing of optical transmitting set and the diffractive-optical element described in equal connecting lines height limitation.
It is another object of the present invention to provide a project structured light device and its manufacturing methods, wherein the structure
Light projecting apparatus has thermal diffusivity.
It is another object of the present invention to provide a project structured light device and its manufacturing methods, wherein the light is sent out
Emitter is arranged at a heat dissipation element, such as metal plate, so that better heat-radiation effect.
It is another object of the present invention to provide a project structured light device and its manufacturing methods, wherein the route
Plate has a hollowed out area, and the hollowed out area is arranged at the optical transmitting set bottom, to improve heat dissipation effect.
In order to realize at least one above purpose, one aspect under this invention, the present invention further provides a structure lights
Grenade instrumentation is suitable for depth camera, comprising:
One optical transmitting set, wherein the optical transmitting set has a projected area in an emitting side, wherein the projected area
For emitting light；
One diffractive-optical element, wherein the diffractive-optical element has a diffraction region, for light emitting described in diffraction
The light of device transmitting；And
One supporting element, wherein diffractive-optical element described in the supports support is in the emitting side of the optical transmitting set, with
Keep the projected area and the diffraction region corresponding, wherein the light that the projected area of the optical transmitting set emits is directly described
The diffraction region diffraction of diffractive-optical element.
According to one embodiment of present invention, the projected area and the diffraction region spacing are less than or equal to 100um.
According to one embodiment of present invention, the projected area and the diffraction region spacing are less than or equal to 15um.
According to one embodiment of present invention, the supporting element is annular in shape, wherein the supporting element is closely around described
Projected area.
According to one embodiment of present invention, the supporting element is in a trapezium structure.
According to one embodiment of present invention, the supporting element by chip adhesive film moulding material, photoresist or glue it
One material is formed.
According to one embodiment of present invention, the supporting element is made of translucent material, covers the projected area, wherein
The supporting element supports the diffractive-optical element between the optical transmitting set and the diffractive-optical element.
According to one embodiment of present invention, the optical transmitting set is in having a non-projected area, wherein the projection area
Domain is located at the outside of the projected area, wherein the supporting element is arranged at the non-projected area, is located at the light emitting
Between device and the diffractive-optical element.
According to one embodiment of present invention, the project structured light device further comprises a wiring board, wherein described
Wiring board can the non-projected area of the place of working connection on the outside of the supporting element.
According to one embodiment of present invention, the project structured light device further comprises a collimator apparatus, wherein institute
The light emission side that collimator apparatus is installed on the diffractive-optical element is stated, it is quasi- to the light after the diffractive-optical element diffraction
Directly.
According to one embodiment of present invention, the project structured light device further comprises a turn light rays element,
Described in turn light rays element be arranged between the diffractive-optical element and the collimating element optical path, correspond to institute
The diffracted ray path for stating diffractive-optical element collimates the turn light rays after diffraction to the collimating element, from the knot
It projects the side of structure light projecting apparatus.
According to one embodiment of present invention, the turn light rays element is implemented as a dioptric lens or a mirror surface
Or both combination.
According to one embodiment of present invention, the project structured light device further comprises a turn light rays element,
Described in turn light rays element be arranged at the collimating element light emission side, corresponding to the collimating element light collimate road
Diameter, wherein the light after diffraction is collimated through the collimating element, then is turned to by the turn light rays element, is thrown from the structure light
The injection of the side of injection device.
According to one embodiment of present invention, the project structured light device further comprises a heat dissipation element and a route
Plate, wherein the wiring board is operatively connected to the optical transmitting set, wherein the heat dissipation element is arranged at the route
Board bottom portion.
According to one embodiment of present invention, the further wiring board of the project structured light device, wherein the route
Plate is operatively connected to the optical transmitting set, wherein the wiring board has a hollowed out area, wherein the hollowed out area pair
The bottom of optical transmitting set described in Ying Yu, wherein the size of the optical transmitting set is greater than the hollowed out area size.
According to one embodiment of present invention, the further wiring board of the project structured light device, wherein the route
Plate is operatively connected to the optical transmitting set, wherein the supporting element is arranged at the wiring board, the optics is supported to spread out
The diffraction region for penetrating element corresponds to the projected area.
According to one embodiment of present invention, the project structured light device further comprises an at least connecting line, wherein
The connecting line connects the optical transmitting set and the wiring board, wherein the connecting line is located on the inside of the supporting element, wherein
The optical transmitting set highly is added no more than the diffractive-optical element and the optical transmitting set spacing after the connecting line installation
Thickness summation.
Other side under this invention, the present invention further provides a project structured light device producing methods, including step
It is rapid:
(a) supporting element is formed in a projected area side of an optical transmitting set；
(b) one diffractive-optical element of installation is in the supporting element, wherein a diffraction region of the diffractive-optical element and
The projected area matching；And
(c) supporting element and the diffractive-optical element are bonded.
According to one embodiment of present invention, the step (a) comprising steps of
The supporting element is formed in a wiring board；With
On the inside of the supporting element, the wiring board and the optical transmitting set are connected.
According to one embodiment of present invention, the step (a) comprising steps of
The supporting element is formed in a non-projected area of the optical transmitting set；With
On the outside of the supporting element, the wiring board and the optical transmitting set are connected.
According to one embodiment of present invention, it is further comprised the steps of: before step (c)
Coating glue bonds the supporting element upper surface and diffractive-optical element bottom table in the support surface
Face.
According to one embodiment of present invention, the step (c) further comprises the steps of:
The supporting element is set to restore viscosity, so that the diffractive-optical element is sticked at the supporting element upper surface.
According to one embodiment of present invention, the project structured light device producing method further comprises the steps of:
The corresponding diffraction region, installs a collimator apparatus, so that the light after diffraction is collimated.
According to one embodiment of present invention, the project structured light device producing method further comprises the steps of:
The light captured alignment of the corresponding collimator apparatus, installs a turn light rays element, so that the light after collimation turns
It is projected to from project structured light device side.
According to one embodiment of present invention, the project structured light device producing method further comprises the steps of:
The light diffraction path of the corresponding diffractive-optical element, installs the turn light rays element, so that light after diffraction
Line turns to.
According to one embodiment of present invention, the project structured light device producing method further comprises the steps of:
The turn light rays path of the corresponding turn light rays element, installs the collimator apparatus, to make the light after turning to
Line is collimated to be projected from project structured light device side.
According to one embodiment of present invention, institute is formed by one of silk-screen printing technique, photoetching process or gluing process
State supporting element.
According to another aspect of the present invention, the present invention further provides a project structured light device producing methods, special
Sign is, comprising:
(A) setting light transmission chip adhesive film moulding material forms a supporting element in the bottom surface of a diffractive-optical element；With
(B) paste the supporting element in the emitting side of an optical transmitting set, make the diffractive-optical element diffraction region and
The projected area of the optical transmitting set is corresponding.
According to one embodiment of present invention, the step (B) further comprises the steps of:
(C) so that the supporting element is restored viscosity, bond the bottom surface of the supporting element and the emitting side of the optical transmitting set.
Detailed description of the invention
Fig. 1 is the schematic diagram of the section structure of project structured light device according to a preferred embodiment of the invention.
Fig. 2 is the part isometric schematic diagram of the project structured light device of above preferred embodiment according to the present invention.
Fig. 3 is the schematic diagram of the section structure of project structured light device according to another embodiment of the present invention.
Fig. 4 is the project structured light device cross-section structure of the variant embodiment of above preferred embodiment according to the present invention
Schematic diagram.
Fig. 5 is the application schematic diagram of project structured light device according to the present invention.
The schematic diagram of the section structure of the project structured light device of Fig. 6 second embodiment according to the present invention.
Fig. 7 is the schematic diagram of the section structure of the project structured light device of third embodiment according to the present invention.
Fig. 8 is the schematic diagram of the section structure of the project structured light device of fourth embodiment according to the present invention.
Fig. 9 is the application schematic diagram of project structured light device according to the present invention.
Figure 10 is the application schematic diagram of project structured light device according to the present invention.
Figure 11 is the flow chart of project structured light device producing method according to the present invention.
Figure 12 is the flow chart of another project structured light device producing method according to the present invention.
Specific embodiment
It is described below for disclosing the present invention so that those skilled in the art can be realized the present invention.It is excellent in being described below
Embodiment is selected to be only used as illustrating, it may occur to persons skilled in the art that other obvious modifications.It defines in the following description
Basic principle of the invention can be applied to other embodiments, deformation scheme, improvement project, equivalent program and do not carry on the back
Other technologies scheme from the spirit and scope of the present invention.
It will be understood by those skilled in the art that in exposure of the invention, term " longitudinal direction ", " transverse direction ", "upper",
The orientation or position of the instructions such as "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside"
Relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, rather than
The device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, therefore above-mentioned
Term is not considered as limiting the invention.
It is understood that term " one " is interpreted as " at least one " or " one or more ", i.e., in one embodiment,
The quantity of one element can be one, and in a further embodiment, the quantity of the element can be it is multiple, term " one " is no
It can be interpreted as the limitation to quantity.
As shown in Fig. 1 to 12, the present invention provides a project structured light device and its manufacturing method, wherein the structure light
Grenade instrumentation is suitable for structure light depth camera, for realizing project structured light.Specifically, the project structured light device includes
One optical transmitting set 10 and a diffractive-optical element 20, wherein the diffractive-optical element 20 is accordingly fixed on the light emitting
One emitting side 11 of device 10, the light that optical transmitting set 10 described in diffraction emits, the light through 20 diffraction of diffractive-optical element
It is launched.
The optical transmitting set 10 can be VCSEL (vertical cavity surface emitting laser, Vertical Cavity Surface
Emitting Laser), optical transmitting set, light diode, light emitting diode etc., the light of generation can be but unlimited be placed in can
Light-exposed, infrared light or ultraviolet light etc..The optical transmitting set 10 has a projected area 13 and a non-throwing in the emitting side 11
Region 14 is penetrated, wherein the non-projected area 14 is located at the side of the projected area 13.13 throw light of projected area,
And by 21 diffraction of diffraction region, that is to say, that the projected area 13 of the optical transmitting set 10 and optical diffraction member
The diffraction region 21 of part 20 is arranged in correspondence with.
It as shown in Figures 1 to 3, is the project structured light device of a preferred embodiment of the invention.The structure light is thrown
Injection device includes a supporting element 40, wherein the supporting element 40 supports the diffractive-optical element 20 in the optical transmitting set 10
The emitting side 11.That is, in the present embodiment, the supporting element 40 is arranged at the optical transmitting set 10 and the light
It learns between diffraction element 20, and supports the diffractive-optical element 20, the diffractive-optical element 20 is allowed to be fixed on institute
State the emitting side 11 of optical transmitting set 10.
The supporting element 40 is formed in the non-projected area 14 of the optical transmitting set 10, and the supporting element 40 is avoided to hinder
Hinder 13 throw light of projected area.That is, the supporting element 40 corresponds to the projected area 13, a projection is defined
Window 41, wherein the light of the sending of the optical transmitting set 10 is through the projection window 41 by 20 diffraction of diffractive-optical element.It is described
The diffraction region 21 of diffractive-optical element 20 corresponds to the projection window 41.
Since the diffractive-optical element 20 is arranged directly in the optical transmitting set 10, in order to enable the light projected
It can be diffracted and make effect preferable, the diffractive-optical element 20 and 10 distance of the optical transmitting set should be less than or be equal to
100um, preferably less than 15um.That is, in the present first embodiment, the thickness of the supporting element 40 is less than or equal to
100um, preferably less than 15um.
Preferably, the supporting element 40 is annular in shape.That is, the supporting element 40 is closely formed in the non-projection
Region 14 prevents as shown in Fig. 2, forming a confined space between the optical transmitting set 10 and the diffractive-optical element 20
Light leakage between the optical transmitting set 10 and the diffractive-optical element 20.
In one embodiment of the invention, the supporting element 40 is in a trapezium structure.As shown in figure 3, the projection window
41 are gradually reduced from top to bottom, in other words from far from the optical transmitting set 10 to the direction become closer to, the projection window 41
It is gradually reduced.Accordingly, the one of the supporting element 40 is close to the medial surface 42 of the projected area 13 relative to the non-projection
14 surface of region tilts at an acute anglely, tilts in obtuse angle relative to 13 surface of projected area.At this point, if the support
Part 40 is made by mold or galley, and the supporting element of trapezium structure makes mold or galley disengaging resistance small, facilitates mold
Or galley is detached from.
Certainly, those skilled in the art are it is appreciated that Fig. 3 is a kind of embodiment of the trapezium structure, also
It can be the setting opposite with position shown in Fig. 3, i.e., the described projection window 41 is gradually increased from top to bottom.At this point it is possible to be in institute
The bottom surface for stating diffractive-optical element 20 is formed after the trapezium structure using mold or galley to be fixed in installation.In order to facilitate mould
Tool or galley are detached from, and the medial surface of the supporting element 40 is tilted in obtuse angle relative to the diffraction region 21.
The project structured light device further comprises a wiring board 30, wherein the optical transmitting set 10 connects with conducting
In the wiring board 30.The non-emissive side 12 of the one of the optical transmitting set 10 is attached at the wiring board 30, to realize the hair
Emitter 10 is fixed.In embodiments of the present invention, when the optical transmitting set 10 is implemented as VCSEL, the non-emissive side 12 is institute
The cathode of VCSEL is stated, wiring board realization can be attached directly to and conducted.The wiring board 30 is connected described by a connecting line 31
One tie point 141 (anode) of the non-projected area 14 of optical transmitting set 10, so that the optical transmitting set 10 connects with conducting
It is connected to the wiring board 30, wherein one end of the connecting line 31 connects the wiring board 30, the other end connects the non-projection
One tie point 141 in region 14.The connecting line 31 may be implemented as the wire etc. that gold thread etc. can be powered, and the present invention is not
Limitation.
Preferably, it is installed in order to avoid the connecting line 31 influences the diffractive-optical element 20, especially described in influence
The spacing of diffractive-optical element 20 and the optical transmitting set 10, the connecting line 31 are installed in the outside of the supporting element 40,
That is, the tie point 141 of the projected area 13 and the non-projected area 14 is isolated by the supporting element 40.Example
Such as, when the connecting line 31 is implemented as gold thread, when one end of gold thread is mounted the wiring board 30, the other end is installed in
The non-projected area 14, the height of the gold thread are generally more than 100um, it is likely that are more than heretofore described optical diffraction member
Part 20 arrives the spacing of the optical transmitting set 10, and preferably the connecting line 31 is installed in the outside of the supporting element 40.
Certainly, those skilled in the art are it is appreciated that the optical transmitting set 10 and the wiring board 30 conduct
It can realize by other means, for example the positive tie point of the optical transmitting set 10 is set to the back side, is accordingly attached at institute
It states wiring board 10 or uses the higher connecting line of other softnesses, to reduce height after connecting line installation, the present invention is not intended to limit.
In one embodiment of the invention, the supporting element 40 is by chip adhesive film moulding material (DAF, Die
Attach Film) it is formed.The DAF material can have viscosity under certain condition, so as to for adhering to and fixing.
That is, the bottom surface of the supporting element 40 contacts and is bonded in the table of the non-projected area 14 of the optical transmitting set 10
The top surface in face, the supporting element 40 contacts and is bonded in the bottom surface of the diffractive-optical element 20, to realize the fixation of the two.
In another embodiment of the invention, the supporting element 40 is formed by photoresist.For example, coating photosensitive material is in institute
Non- 14 surface of projected area to be stated, default coating zone is exposed, the physical property for being exposed to the photosensitive region of light changes, thus
So that exposed region is etched when the etchants such as developer are applied to photosensitive material layer, the supporting element 40 is formed.Into one
Step, in order to realize fixation, the top surface of the supporting element 40 is implemented on by adhesives such as glue, the optics is accordingly installed and spreads out
Both element 20 is penetrated, thus be adhesively fixed.
Or coating photosensitive material, in 40 bottom surface of diffractive-optical element, the diffraction region 21 is preset in exposure, thus
Form the diffraction region 21 and the supporting element 40.Further, in order to realize fixation, institute is implemented on by adhesives such as glue
Both the bottom surface of supporting element 40 is stated, the optical generator 10 is accordingly installed, thus be adhesively fixed.
The project structured light device further comprises a heat dissipation element 50, wherein the heat dissipation element 50 be attached at it is described
30 bottom of wiring board, the heat generated during the work time for dispersing the project structured light device.The heat dissipation element 50
It may be implemented as a metal plate, wherein the metal plate is arranged at 30 bottom of wiring board.
Further, the project structured light device includes a collimator apparatus 60, wherein the collimator apparatus 60 is installed in
The light emission side of the diffractive-optical element 20, i.e., the light that the described collimator apparatus 60 is arranged at the diffractive-optical element 20 spread out
Rays diameter collimates the light after 20 diffraction of diffractive-optical element.The collimator apparatus 60 includes a collimating element 62
With an installation part 61, wherein the collimating element 62 is fixed on the installation elements 61, the installation elements 61 correspond to described
Diffraction region 21 is installed, so that the collimating element 62, the diffractive-optical element 20 and the optical transmitting set 10 are corresponding,
So that the optical transmitting set 10 launches laser by 20 diffraction of diffractive-optical element, then pass through the collimating element
Extraterrestrial target is projected to after 62 collimations.
The collimating element 62 may be implemented as a series of lens group of adjustable opticpaths.The installation part 61
One end is installed in the wiring board 30, and Xiang Suoshu collimating element 62 extends, and the other end defines a light-emitting window 100.The light hair
Emitter 10 emits beam, and after 20 diffraction of diffractive-optical element, the collimating element 60 collimates the light after diffraction, warp
Light after collimation is launched from the light-emitting window 100.
Those skilled in the art are it is appreciated that the installation part 61 may be implemented as the project structured light device
A shell.The shell accommodates the optical transmitting set 10, the diffractive-optical element 20, the supporting element 40 and the route
Plate 50.The collimating element 62 can be accordingly directly mounted at the shell at this time, such as pass through buckle, spiral, stickup
Or the modes such as interference fit.
In first preferred embodiment, the installation part 61 directly extends from the wiring board 30, in other words along institute
The light diffraction path for stating diffractive-optical element 20 extends.The optical transmitting set 10, the diffractive-optical element 20 and the standard
Straight device 30 successively states the setting of 61 extending direction of installation part along described.The light-emitting window 100 is arranged at project structured light device
One end, corresponding to the diffractive-optical element 20 a diffraction region 21 be arranged.At this point, the thickness of the project structured light device
Spend the distance of the substantially described wiring board 30 to the light-emitting window 100 or the collimating element 62.
In order to protect each element of the project structured light device, the collimator apparatus 60 further comprises protection member
Part 63 is set to the light-emitting window 100, encapsulates the project structured light wherein the protection element 63 is made of transparent material
Device, so that dust, moisture or other impurities be avoided to enter.The protection element 63 may be implemented as mobile phone, plate or electricity
The screen of the equipment such as brain is encapsulated using the screen of equipment, to reduce installation steps and cost.
As shown in figure 4, a project structured light device of the variant embodiment for the first embodiment of the invention.Institute
It states in variant embodiment, the project structured light device includes an optical transmitting set 10D, a diffractive-optical element 20D, a supporting element
40D, a wiring board 30D and a collimator apparatus 60D.The optical transmitting set 10D have an emitting side 11D, a non-emissive side 12D,
The non-projected area 14D of one projected area 13D and one.The non-projected area 14D is equipped with an at least tie point 141D.The optics
Diffraction element 20D has a diffraction region 21D.The project structured light device has a light-emitting window 100D.The collimator apparatus
60D includes an installation part 61D, a collimating element 62D and a protection element 63D.
Those skilled in the art will know that the diffractive-optical element 20D in the preferred embodiment is direct
Be supported in the optical transmitting set 10D, the diffractive-optical element 20D and the optical transmitting set 10D spacing it is smaller and limitation, support
The features such as part 40D is formed by DAF, common glue or photoetching process, heat dissipation element heat dissipation is arranged, one protection element of setting encapsulates
It can also combine in the second embodiment applicable, details are not described herein again.
Unlike above-mentioned first preferred embodiment, in this variant embodiment, the supporting element 40D is by translucent material
It is made, covers the projected area 13D of the optical transmitting set 10D, to support the diffractive-optical element 20D.Namely
It says, in this variant embodiment, the supporting element 40D is integrally plate-like, and other than ring type.Light is sent out by the optical transmitting set 10B
After out, projected after the supporting element 40D of light transmission is conducted to the diffractive-optical element 20D diffraction from light-emitting window 100D.
Specifically, the supporting element 40D is attached at the emitting side 11D of the optical transmitting set 10D, is located at the optical transmitting set
Between 10D and the diffractive-optical element 20D, the fixed optical transmitting set 10D and diffractive-optical element 20D.Accordingly,
In this variant embodiment, in order to enable the light projected can be diffracted and make effect preferable, the optical diffraction member
Part 20D and optical transmitting set 10D distance is less than or equal to 100um, preferably less than 15um.That is, the supporting element
40 thickness is less than or equal to 100um, preferably less than 15um.
It is illustrated so that the supporting element 40D is formed by chip adhesive film moulding material as an example.In manufacturing process, it can apply
Chip adhesive film moulding material is covered in the bottom surface of the diffractive-optical element 20D, forms the supporting element 40D.It is risen by heating
Pressure bonds the bottom surface of the supporting element 40D and the emitting side of the optical transmitting set 10D so that supporting element 40D recovery viscosity
11D.At this point, chip adhesive film moulding material be coated on the diffractive-optical element 20D and it is indirect be coated on the light send out
The emitting side 11D of emitter 10D, and material restores the mobility reduction after viscosity, reduces material and penetrates into the optical transmitting set 10D
A possibility that portion, especially to the VCSEL with emission cavity.Preferably, the size of the supporting element 40D is greater than the projected area
The size of 13D, so as to cover the projected area 13D.
The manufacturing method of this structure makes the height of the supporting element 40D may be implemented to further decrease, and realizes more preferable
Diffracting effect, while reducing technology difficulty, reduce cost.
As shown in figure 5, being thrown for the structure light of the preferred embodiment and its deformation of the invention or the second embodiment
Injection device is installed on the structural schematic diagram of electronic equipment.Each element of the project structured light device successively linearly arranges
Direction, the accordingly thickness direction of electronic equipment.
As shown in fig. 6, being a project structured light device of a second embodiment of the invention.In the second embodiment
In, the project structured light device includes an optical transmitting set 10A, a diffractive-optical element 20A, a supporting element 40A, a wiring board
A 30A and collimator apparatus 60A.The optical transmitting set 10A has an emitting side 11A, a non-emissive side 12A, a projected area 13A
With a non-projected area 14A.The non-projected area 14A is equipped with an at least tie point 141A.The diffractive-optical element 20A tool
There is a diffraction region 21A.The project structured light device has a light-emitting window 100A.The collimator apparatus 60A includes an installation
A part 61A and collimating element 62A.
Those skilled in the art will know that the diffractive-optical element 20A in the preferred embodiment is direct
Be supported in the optical transmitting set 10A, the diffractive-optical element 20A and the optical transmitting set 10A spacing it is smaller and limitation, support
The features such as part 40A is formed by DAF, common glue or photoetching process, heat dissipation element heat dissipation is arranged, one protection element of setting encapsulates
It can also combine in the second embodiment applicable, details are not described herein again.
In a second embodiment with the preferred embodiment unlike, the diffractive-optical element 20A and the light hair
Emitter 10A spacing plus the optical transmitting set 10A thickness higher than the connecting line 31A installation after height when, the connection
Line 31 can be installed on the inside of the supporting element 40A, without influencing line space design.That is, the tie point 141A
It is arranged on the inside of the supporting element 40A, the projected area 14A is not isolated from by the supporting element 40A.
Specifically, the supporting element 40A is arranged at the wiring board 30A, on the outside of the non-projected area 14A, branch
The diffraction region 21A for supportting the diffractive-optical element 20A corresponds to the projected area 13A.Light leakage and branch in order to prevent at this time
Stability is supportted, the supporting element 40A closely around non-14 side of projected area, forms a sealing space.That is,
The supporting element 40A extends to the diffractive-optical element 20A by the wiring board 30A.
The connecting line 31A is installed in the sealing space, and one end is connected in the non-projected area 14A's
The tie point 141A, the other end connect the wiring board 30A.The supporting element 10A encapsulates the connecting line 31A and the light
Transmitter 10A.
The wiring board 30A has a hollow-out parts 32A, sets wherein the hollow-out parts 32A corresponds to the optical transmitting set 10A
It sets, to improve the thermal diffusivity of the project structured light device.The hollow-out parts 32A has an at least hollow hole 321A, wherein
The hollow hole 321A is arranged at the bottom the wiring board 30A.The hollow hole 321A provides a heat dissipation channel, when the light
When transmitter 10A works, the heat generated can be discharged by the hollow hole 321A.
Preferably, the partial region of the optical transmitting set 10A covers the hollow-out parts 32A, i.e., the ruler of the described hollow-out parts 32A
The very little size less than the optical transmitting set 10A, consequently facilitating the fixation and installation of the optical transmitting set 10A.Particularly, when described
Hollow-out parts 32A only has a hollow hole 321, and the size of the optical transmitting set 10A should be greater than the ruler of the hollow hole 321A
It is very little to be installed with realizing.
Further, heat sink material can also be arranged in the hollow-out parts 32A, the heat dissipation such as illustrate but be not limited to ceramics, red copper
The good material of performance, it is to be understood that the bottom optical transmitting set 10A described in the heat sink material end thereof contacts, and it is set to institute
Hollow-out parts 32A is stated, therefore the optical transmitting set 10A heat generated can quickly be exported.
As shown in fig. 7, being the project structured light device of a 3rd embodiment of the invention.In the 3rd embodiment,
The project structured light device includes an optical transmitting set 10B, a diffractive-optical element 20B, a supporting element 40B, a wiring board 30B
With a collimator apparatus 60B.The optical transmitting set 10B have an emitting side 11B, a non-emissive side 12B, a projected area 13B and
One non-projected area 14B.The non-projected area 14B is equipped with an at least tie point 141B.The diffractive-optical element 20B has
One diffraction region 21B.The project structured light device has a light-emitting window 100B.The collimator apparatus 60B includes an installation part
61B, a collimating element 62B and a protection element 63B.
Those skilled in the art will know that the diffractive-optical element 20B in the preferred embodiment is direct
It is supported in the optical transmitting set 10B, the diffractive-optical element 20B and the optical transmitting set 10B spacing is smaller, the supporting element
It is formed in the non-projected area or the wiring board, supporting element 40B in a ring or trapezium structure, supporting element 40B is by DAF, general
Logical glue or photoetching process are formed, one heat dissipation element of setting radiates, the wiring board has hollow-out parts heat dissipation, one protection member of setting
The features such as part encapsulation can also combine applicable in the 3rd embodiment, and details are not described herein again.
In the 3rd embodiment and unlike above-mentioned preferred embodiment, second embodiment, the project structured light
Device further includes a turn light rays element 70B, wherein the turn light rays element 70B is arranged at the diffractive-optical element
It, will be through corresponding to the diffracted ray path of the diffractive-optical element 20B between 20B and the collimating element 62B opticpath
Turn light rays after diffraction are collimated to the collimating element 62B, to project from the side of the project structured light device.That is institute
It states optical inversion element 70B and is located at the light emission side of the diffractive-optical element 20B and the incident side of the collimating element 62B.
The light-emitting window 100B is arranged at the side wall of the project structured light device, and the optical transmitting set 10B emits light
It is quasi- to be diverted to the collimating element 62B by the turn light rays element 70B after the diffractive-optical element 20B diffraction for line
Directly, then from the light-emitting window 100B for being set to side wall it launches.
The turn light rays element 70B may be implemented as a dioptric lens, and the light after diffraction passes through the refractive power
Lens and generate refraction, then through the collimating element 62B collimate, go out from the light-emitting window 100B.
Or the turn light rays element 70B also may be implemented as a mirror surface, wherein the mirror surface is opposite
Obliquely it is arranged in the diffracted ray path of the diffractive-optical element 20B.Light after diffraction is anti-through the mirror surface
It penetrates, until the collimating element 62B is collimated, goes out from the light-emitting window 100B.
That is, those skilled in the art it is appreciated that the turn light rays element 70B can by reflection,
The mode that refraction or both combines realizes that turn light rays, the present invention are not intended to limit.
Accordingly, the installation part 61B includes one first installation part 611B, a steering installation part 612B and one second installation
Part 613B, wherein the first installation part 611B is from the wiring board 30B along the diffraction light route of the diffractive-optical element 20B
Diameter extends, until the steering installation part 612B, the second installation part 613B are from the installation part 612B that turns to along the light
The turn light rays path of steering component 70B extends.The first installation part 611B accommodates the optical transmitting set 10B, the support
The part 40B and diffractive-optical element 20B.The steering installation part 612B forms a turning, accommodates the turn light rays element
70B.The second installation part 613B accommodates the collimating element 62B, wherein the Single port for stating the second installation part 613B defines institute
Light-emitting window 100B is stated, so that the light after collimated is directly projected from the light-emitting window 100B.
That is, the first installation part 611B and the second installation part 613B turn to installation part from described respectively
The two sides of 612B extend, to form the installation part 61B.
At this point, the project structured light device along figure the thickness of X-direction and the wiring board 30B length in X direction,
The installation position of the collimating element 62B etc. is related.And project structured light the device thickness of Y-direction and turn light rays along figure
The size of element 70B, the size of the collimating element 62B, the turn light rays element 70B and the diffractive-optical element 20B
Default spacing etc. is related.
As shown in figure 8, being a fourth embodiment project structured light device of the invention.In the fourth embodiment, institute
State project structured light device include an optical transmitting set 10C, a diffractive-optical element 20C, a supporting element 40C, a wiring board 30C,
An one collimator apparatus 60C and turn light rays element 70C.The optical transmitting set 10C has an emitting side 11C, a non-emissive side
12C, the non-projected area 14C of a projected area 13C and one.The non-projected area 14C is equipped with an at least tie point 141C.It is described
Diffractive-optical element 20C has a diffraction region 21C.The project structured light device has a light-emitting window 100C.The collimation
Device 60C includes an an installation part 61C and collimating element 62C.
Those skilled in the art will know that the diffractive-optical element 20C in the preferred embodiment is direct
It is supported in the optical transmitting set 10C, the diffractive-optical element 20C and the optical transmitting set 10C spacing is smaller, the supporting element
Be formed in the non-projected area or the wiring board, supporting element 40C in a ring or trapezium structure or the covering projected area,
Supporting element 40C is formed by DAF, common glue or photoetching process, heat dissipation element heat dissipation is arranged, the wiring board has hollow-out parts
Heat dissipation, one protection element of setting such as encapsulate at the features can also combine applicable in the 3rd embodiment, and details are not described herein again.
Unlike above-mentioned 3rd embodiment, in the fourth embodiment, the turn light rays element 70C is set
Light captured alignment in the collimating element 62C light emission side, corresponding to the collimating element 62C.After light diffraction, through described
Collimating element 62C collimation, then turned to by the turn light rays element 70C, it is projected from the side of the project structured light device.
Specifically, the turn light rays element 70C may be implemented as a dioptric lens, and collimated light passes through institute
It states dioptric lens and generates refraction, go out from the light-emitting window 100C for being arranged at project structured light device side.Or
Turn light rays element 70C described in person also may be implemented as a mirror surface, wherein the mirror surface is relative to the collimation
The collimated ray path of element 62C is obliquely arranged.Collimated light is reflected through the mirror surface, from the light-emitting window
100C goes out.That is, those skilled in the art it is appreciated that the turn light rays element 70B can by reflection,
The mode that refraction or both combines realizes that turn light rays, the present invention are not intended to limit.
Accordingly, the installation part 61C includes that one first installation part 611C and one turns to installation part 612C, wherein described the
One installation part 611C extends to described turn to along the diffracted ray path of the diffractive-optical element 20B from the wiring board 30C
Installation part 612C.The first installation part 611C successively accommodates the optical transmitting set 10C, the supporting element 40C, the optics and spreads out
Penetrate element 20B and the collimating element 62C.The steering installation part 612C forms a turning, accommodates the turn light rays element
70C, wherein the Single port for turning to installation part 612C defines the light-emitting window 100C, so that the light after steering is directly from institute
State light-emitting window 100C injection.
At this point, the thickness of the project structured light device is related to the size of the collimating element 62C, compared to it is above-mentioned its
His embodiment, when installing and using of the fourth embodiment is thinner, is suitable for the lightening developing direction of mobile device.
It is the project structured light of the 3rd embodiment and the fourth embodiment of the invention as shown in Fig. 9 to Figure 10
Device is installed on the structural schematic diagram of electronic equipment.Due to turn light rays, the thickness of the structure electro-optical device is compared to preferable reality
Applying example and first embodiment thickness reduces, and especially in fourth embodiment, the thickness of the project structured light device is roughly the same
In the diameter of the collimating element 62C.
According to another aspect of the present invention, the present invention further provides a project structured light device producing methods, are applicable in
In above structure light projecting apparatus, to realize above-mentioned purpose and feature, as shown in figure 11.
Step 201: forming a supporting element in a projected area side of an optical transmitting set.
The supporting element can be made of materials such as DAF material, photoetching material or common glue, and having in step 201 can
To be applicable in.That is, can use DAF material takes silk-screen printing technique, or using photoetching material by photoetching process or
Person forms the supporting element in such a way that common glue is by dispensing or gluing etc..
For silk-screen printing technique, DAF material can fill the pierced pattern of plates for screen printing, to form the support
Part.Those skilled in the art are known that the concept and basic step of silk-screen printing technique, and details are not described herein again.
According to different project structured light devices, the supporting element forming position also can be different, and the supporting element can be by
It is formed in a non-projected area of the optical transmitting set, a wiring board can also be formed in.
When the supporting element is formed in the wiring board, can also be performed before or after the step 201
Step 202: on the inside of Yu Suoshu supporting element, connecting the wiring board and the optical transmitting set.
When the supporting element is formed in the non-projected area, step can also be performed before or after the step 201
It is rapid:
Step 203: on the outside of Yu Suoshu supporting element, connecting the wiring board and the optical transmitting set.
Step 204: one diffractive-optical element of installation is in the supporting element, wherein a diffraction zone of the diffractive-optical element
Domain and projected area matching.
That is, contraposition makes the diffraction region of the diffractive-optical element and the projected area when installation
The surface of the diffractive-optical element contacts the support surface.
Step 205: bonding the supporting element and the diffractive-optical element.
When the supporting element is made using DAF material, the step 203 may be implemented as making by increasing temperature and pressure
The supporting element restores viscosity, so that the diffractive-optical element can be sticked at the supporting element upper surface.And work as institute
It is weaker or do not have sticking material using the viscosity such as photoetching material to state supporting element, coating glue is in described before the step 203
Support surface.
Step 206: the corresponding diffraction region installs a collimator apparatus.
Step 207: the light captured alignment of the corresponding collimator apparatus installs a turn light rays element, so that after collimation
Turn light rays from project structured light device side project.
Or it executes after step 205
Step 208: the turn light rays element is installed in the light diffraction path of the corresponding diffractive-optical element, so that
Turn light rays after diffraction.
Step 209: the collimator apparatus is installed in the turn light rays path of the corresponding turn light rays element, to make to turn
Light backward is collimated to be projected from project structured light device side.
Those skilled in the art, can basis it is appreciated that the not necessarily step of step 202,203,206 to 209
The structure selectivity of actual design executes.
As shown in figure 12, it is another project structured light device producing method provided by the invention, is suitable for above-mentioned preferable reality
The variant embodiment of example is applied, realizes above-mentioned purpose and advantage.
Step 301: setting light transmission DAF material forms a supporting element in the bottom surface of a diffractive-optical element.
Step 302: pasting the supporting element in the emitting side of an optical transmitting set, make the diffraction zone of the diffractive-optical element
Domain and the projected area of the optical transmitting set are corresponding.
Step 303: making the supporting element restore viscosity by increasing temperature and pressure, bond the bottom surface of the supporting element and described
The emitting side of optical transmitting set.
Step 304: the corresponding diffraction region installs a collimator apparatus.
Step 305: the light captured alignment of the corresponding collimator apparatus installs a turn light rays element, so that after collimation
Turn light rays from project structured light device side project.
Or it executes after step 303
Step 306: the turn light rays element is installed in the light diffraction path of the corresponding diffractive-optical element, so that
Turn light rays after diffraction.
Step 307: the collimator apparatus is installed in the turn light rays path of the corresponding turn light rays element, to make to turn
Light backward is collimated to be projected from project structured light device side.
It should be understood by those skilled in the art that foregoing description and the embodiment of the present invention shown in the drawings are only used as illustrating
And it is not intended to limit the present invention.The purpose of the present invention has been fully and effectively achieved.Function and structural principle of the invention exists
It shows and illustrates in embodiment, under without departing from the principle, embodiments of the present invention can have any deformation or modification.
Claims (34)
1. a project structured light device is suitable for depth camera characterized by comprising
One optical transmitting set, wherein the optical transmitting set has a projected area in an emitting side, wherein the projected area is used for
Emit light；
One diffractive-optical element, wherein the diffractive-optical element has a diffraction region, for the hair of optical transmitting set described in diffraction
The light penetrated；And
One supporting element, wherein diffractive-optical element described in the supports support is in the emitting side of the optical transmitting set, so that institute
It states projected area and the diffraction region is corresponding, wherein the light that the projected area of the optical transmitting set emits is directly by the optics
The diffraction region diffraction of diffraction element.
2. project structured light device according to claim 1, wherein the projected area and the diffraction region spacing are small
In or equal to 100um.
3. project structured light device according to claim 1, wherein the projected area and the diffraction region spacing are small
In or equal to 15um.
4. project structured light device according to claim 1, wherein the supporting element is annular in shape, wherein the supporting element closes
Ground is closed around the projected area.
5. project structured light device according to claim 1, wherein the supporting element is in a trapezium structure.
6. project structured light device according to claim 1, wherein the supporting element is by chip adhesive film moulding material, light
The material of one of photoresist or glue is formed.
7. project structured light device according to any one of claims 1 to 3, wherein the supporting element is made of translucent material,
The projected area is covered, wherein the supporting element between the optical transmitting set and the diffractive-optical element, supports institute
State diffractive-optical element.
8. project structured light device according to any one of claims 1 to 6, wherein the optical transmitting set is in a non-projection
Region, wherein the non-projected area is located at the outside of the projected area, wherein the supporting element is arranged at the non-throwing
Penetrate region.
9. project structured light device according to claim 8 further comprises a wiring board, wherein the wiring board can work
Ground connection is located at the non-projected area on the outside of the supporting element.
10. project structured light device according to claim 8 further comprises a collimator apparatus, wherein the collimator apparatus
It is installed on the light emission side of the diffractive-optical element, the light after the diffractive-optical element diffraction is collimated.
11. project structured light device according to any one of claims 1 to 6 further comprises a heat dissipation element and a route
Plate, wherein the wiring board is operatively connected to the optical transmitting set, wherein the heat dissipation element is arranged at the route
Board bottom portion.
12. project structured light device according to any one of claims 1 to 6 further comprises a wiring board, wherein the line
Road plate is operatively connected to the optical transmitting set, wherein the wiring board has a hollowed out area, wherein the hollowed out area
Corresponding to the bottom of the optical transmitting set, wherein the size of the optical transmitting set is greater than the hollowed out area size.
13. project structured light device according to any one of claims 1 to 6 further comprises a wiring board, wherein the line
Road plate is operatively connected to the optical transmitting set, wherein the supporting element is arranged at the wiring board, supports the optics
The diffraction region of diffraction element corresponds to the projected area.
14. the 3 project structured light device according to claim 1 further comprises an at least connecting line, wherein the connecting line
The optical transmitting set and the wiring board are connected, wherein the connecting line is located on the inside of the supporting element, wherein the connecting line
The thickness summation of the optical transmitting set is highly added after installation no more than the diffractive-optical element and the optical transmitting set spacing.
15. the 3 project structured light device according to claim 1 further comprises a collimator apparatus, wherein the collimator apparatus
It is installed on the light emission side of the diffractive-optical element, the light after the diffractive-optical element diffraction is collimated.
16. project structured light device according to any one of claims 1 to 6 further comprises a collimator apparatus, wherein described
Collimator apparatus is installed on the light emission side of the diffractive-optical element, collimates to the light after the diffractive-optical element diffraction.
17. the 6 project structured light device according to claim 1 further comprises a turn light rays element, wherein the light
Steering component is arranged between the diffractive-optical element and the collimating element optical path, corresponds to the optical diffraction
The diffracted ray path of element collimates the turn light rays after diffraction to the collimating element, fills from the project structured light
It projects the side set.
18. the 7 project structured light device according to claim 1, wherein to be implemented as a refractive power saturating for the turn light rays element
The combination of mirror or a mirror surface or both.
19. the 6 project structured light device according to claim 1 further comprises a turn light rays element, wherein the light
Steering component is arranged at the collimating element light emission side, corresponding to the light captured alignment of the collimating element, wherein diffraction
Light afterwards is collimated through the collimating element, then is turned to by the turn light rays element, from the side of the project structured light device
It projects in face.
20. a project structured light device producing method characterized by comprising
(a) supporting element is formed in a projected area side of an optical transmitting set；
(b) one diffractive-optical element of installation is in the supporting element, wherein a diffraction region of the diffractive-optical element and described
Projected area matching；And
(c) supporting element and the diffractive-optical element are bonded.
21. project structured light device producing method according to claim 20, wherein the step (a) comprising steps of
The supporting element is formed in a wiring board；With
On the inside of the supporting element, the wiring board and the optical transmitting set are connected.
22. project structured light device producing method according to claim 20, wherein the step (a) comprising steps of
The supporting element is formed in a non-projected area of the optical transmitting set；With
On the outside of the supporting element, the wiring board and the optical transmitting set are connected.
23. further including before step (c) according to any project structured light device producing method of claim 20 to 22
Step:
Coating glue bonds the supporting element upper surface and the diffractive-optical element bottom surface in the support surface.
24. according to any project structured light device producing method of claim 20 to 22, wherein the step (c) is also wrapped
Include step:
The supporting element is set to restore viscosity, so that the diffractive-optical element is sticked at the supporting element upper surface.
25. being further comprised the steps of: described in corresponding to according to any project structured light device producing method of claim 20 to 22
Diffraction region installs a collimator apparatus, so that the light after diffraction is collimated.
26. project structured light device producing method according to claim 25, further comprises the steps of:
The light captured alignment of the corresponding collimator apparatus, installs a turn light rays element so that the turn light rays after collimation from
It projects project structured light device side.
27. being further comprised the steps of: according to any project structured light device producing method of claim 20 to 22
The light diffraction path of the corresponding diffractive-optical element, installs the turn light rays element, so that light turns after diffraction
To.
28. project structured light device producing method according to claim 27, further comprises the steps of:
The turn light rays path of the corresponding turn light rays element, installs the collimator apparatus, to make the light warp after turning to
It is projected after collimation from project structured light device side.
29. project structured light device producing method according to claim 20, wherein the step (a) passes through silk-screen printing
One of technique, photoetching process or gluing process form the supporting element.
30. a project structured light device producing method characterized by comprising
(A) setting light transmission chip adhesive film moulding material forms a supporting element in the bottom surface of a diffractive-optical element；With
(B) supporting element is pasted in the emitting side of an optical transmitting set, makes the diffraction region of the diffractive-optical element and described
The projected area of optical transmitting set is corresponding.
31. project structured light device producing method according to claim 30, wherein the step (B) further comprises the steps of:
The supporting element restores viscosity, bonds the bottom surface of the supporting element and the emitting side of the optical transmitting set.
32. project structured light device producing method according to claim 30, further comprises the steps of:
The corresponding diffraction region, installs a collimator apparatus.
33. project structured light device producing method according to claim 32, further comprises the steps of:
The light captured alignment of the corresponding collimator apparatus, installs a turn light rays element so that the turn light rays after collimation from
It projects project structured light device side.
34. project structured light device producing method according to claim 30, further comprises the steps of:
The light diffraction path of the corresponding diffractive-optical element, installs the turn light rays element, so that light turns after diffraction
To；With
The turn light rays path of the corresponding turn light rays element, installs the collimator apparatus, to make the light warp after turning to
It is projected after collimation from project structured light device side.
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| CN201810502519.8A CN110530283A (en) | 2018-05-23 | 2018-05-23 | Project structured light device and its manufacturing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810502519.8A CN110530283A (en) | 2018-05-23 | 2018-05-23 | Project structured light device and its manufacturing method |
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Cited By (1)
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| WO2022226738A1 (en) * | 2021-04-26 | 2022-11-03 | 泉州三安半导体科技有限公司 | Light-emitting device |
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Application publication date: 20191203 |