CN204739538U - Light control structure - Google Patents
Light control structure Download PDFInfo
- Publication number
- CN204739538U CN204739538U CN201520335475.6U CN201520335475U CN204739538U CN 204739538 U CN204739538 U CN 204739538U CN 201520335475 U CN201520335475 U CN 201520335475U CN 204739538 U CN204739538 U CN 204739538U
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- China
- Prior art keywords
- light
- pedestal
- light source
- control structure
- source control
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Abstract
The utility model provides a light control structure, including the pedestal that has the porefilling, set up on this pedestal and lie in this porefilling light -emitting component, set up on this pedestal and the light that lies in this porefilling is listened the subassembly, is set up in the porefilling of pedestal and cover this light -emitting component and listens the encapsulation colloid of subassembly and set up the reflection subassembly on this encapsulation colloid with this light. Therefore, form this encapsulation colloid through encapsulating in this pedestal, or further set up this reflection subassembly on this encapsulation colloid, can make this light listen the subassembly absorbs sufficient luminous power, and then can control this light -emitting component function when the application under the best condition, reduce its light source output, eyeball safety with the guarantee user just accords with product ann rule, it reduces more to enable whole size, applicablely use in now light and handy again little product, and owing to need not preparation under airtight environment, also reduction in production cost by a wide margin, consequently, have smallly, but efficiency with low costs and bulk production.
Description
Technical field
The utility model has about a kind of light source control structure, espespecially a kind of structure without the need to making under airtight environment, to refer in SMD type assembly encapsulating especially or further speculum be set thereon, MPD can be made to absorb enough luminous powers, and then can when using under the situation of control VCSEL running in the best, reduce its light source output power, to ensure the eye-safe of user and to meet product safety, have that volume is little, cost is low and can the structure of in a large number production effect.
Background technology
Generally with tablet PC (as iPad series etc.) and mobile phone (as iPhone or HTC mobile phone series etc.), it is all the touch keyboard based on display screen, but when tablet PC is erected, the touch keyboard at display screen place not easily inputs, and external connection keyboard therefore must be used just easily to carry out data input; And circumscribed physical keyboard must be carried in addition again, and increase tablet PC carry volume, cause not portative puzzlement.
In addition, if with general display screen (as lcd screen etc.), during for input data, touch keyboard shown on display screen must be used equally, or must, through desktop PC main frame in an external physical keyboard, circumscribed physical keyboard but cannot be used merely to carry out data input.
Given this, known technology is had to propose a kind of display unit with dummy keyboard, can directly through projection, dummy keyboard be projected for user's operation, and the finger that display unit can sense user goes out corresponding button with correspondence, and be presented on display module, not only easy to use, and can not overall volume be increased, be more convenient for carrying.
For above-mentioned technology, the general optical sensing module proposed at present makes luminescence component (such as (VCSEL)) and inspection optical assembly carry out metal can (TO-CAN) encapsulation.But, in this kind of design, owing to there is no encapsulating process, therefore need perform in airtight environment and keep absolute completely cutting off with the external world, to avoid ambient atmos, intraware being damaged.The encapsulation of this TO-CAN pattern another, except air-tightness demand completely, usually needs extra optical axis alignment, therefore needs to carry out optical axis coincidence repeatedly.Moreover, the optical sensing module of this TO-CAN framework is without waveguide ability, causing its light source to draw high just has the angle of enough reflections, inspection optical assembly just can receive enough luminous powers, not only operating distance will be grown but also high, therefore cannot be applicable to require light and handy little again consumption electronic products, such as mobile phone now.So the encapsulation of pattern, because process is complicated, complex structure, cost are high and encapsulation volume is large, generally cannot meet user required when reality uses.
Utility model content
Main purpose of the present utility model is, overcome the problems referred to above that known technology meets with, and a kind of light source control structure is provided, by encapsulating in pedestal or arrange reflection subassembly thereon further, light detection element can be made to absorb enough luminous powers, and then the situation of luminescence component running in the best can be controlled when using under, reduce its light source output power, to ensure the eye-safe of user and to meet product safety, overall dimensions more can be made to reduce, be applicable to now light and handy little again product to use, and due to without the need to making under airtight environment, also significantly production cost can be reduced, therefore there is volume little, low and the mass producible effect of cost.
To achieve these objectives, the technical solution adopted in the utility model is: a kind of light source control structure, it comprises the luminescence component launching a light beam, be characterized in, this structure also comprises pedestal, in order to receive light beam that this luminescence component transmits to control the light detection element of the luminous power of this luminescence component transmitted beam, packing colloid and reflection subassembly further, this pedestal has filling perforation; This luminescence component to be arranged on this pedestal and to be positioned at this filling perforation, this light detection element to be arranged on this pedestal and to be positioned at this filling perforation, cover this luminescence component and this light detection element in the filling perforation that this packing colloid is filled in pedestal, in this packing colloid, form waveguide to make this light beam; This reflection subassembly is arranged on this packing colloid, light beam in order to relative this luminescence component sets up the reflection optical path that reflects at least one times in this light detection element, and through the waveguide formed in this packing colloid, light can be retrained and within it propagate, make this light detection element absorb enough luminous powers.
Described pedestal is surface mount component (Surface Mounted Device, SMD).
Described luminescence component is vertical cavity surface emitting type laser (Vertical Cavity Surface Emitting Laser, VCSEL).
Described smooth detection element is for monitoring optical detector (Monitoring Photodetector, MPD).
Described packing colloid is epoxy resin or silica gel.
Described reflection subassembly is have the packing colloid surface of reflective character, coatings, speculum or reflective sheeting.
Described structure more comprises lens, and these lens are arranged at the top of this reflection subassembly.
Thickness bottom described pedestal top to this filling perforation is 0.3-1.5 millimeter.
Thickness bottom described pedestal to this filling perforation is 0.1-0.3 millimeter.
So, by encapsulating in pedestal or arrange speculum thereon further, supervision optical detector can be made to absorb enough luminous powers, and then can when using under the situation of control VCSEL running in the best, reduce its light source output power, to ensure the eye-safe of user and to meet product safety, overall dimensions more can be made to reduce, be applicable to now light and handy little again product to use, and due to without the need to making under airtight environment, also significantly can reduce production cost, therefore have that volume is little, cost is low and mass producible effect.
Accompanying drawing explanation
Fig. 1 is the light source control structure schematic diagram of the utility model one preferred embodiment.
Label declaration:
Pedestal 1 filling perforation 11
The smooth detection element 3 of luminescence component 2
Packing colloid 4 reflection subassembly 5
Lens 6.
Detailed description of the invention
Referring to shown in Fig. 1, is the light source control structure schematic diagram of the utility model one preferred embodiment.As shown in the figure: the utility model is a kind of light source control structure, it comprises pedestal 1, luminescence component 2, light detection element 3, packing colloid 4 and reflection subassembly 5 and formed.
Above-mentioned carried pedestal 1 is a surface mount component (Surface Mounted Device, SMD), and it has filling perforation (Filling) 11.Wherein, the thickness bottom this pedestal 1 top to this filling perforation 11 is between 0.3-1.5 millimeter (mm), and the thickness bottom this pedestal 1 to this filling perforation 11 is between 0.1-0.3 millimeter (mm).
This luminescence component 2 is vertical cavity surface emitting type laser (Vertical Cavity Surface Emitting Laser, VCSEL), is be arranged on this pedestal 1 and be positioned at this filling perforation 11, in order to launch a light beam.
This light detection element 3 is for monitoring optical detector (Monitoring Photodetector, MPD), to be arranged on this pedestal 1 and to be positioned at this filling perforation 11, in order to receive the light beam that this luminescence component 2 transmits, to control the luminous power of this luminescence component 2 transmitted beam further.
This packing colloid 4 is epoxy resin or silica gel, covers this luminescence component 2 and this light detection element 3, form waveguide in order to make this light beam in this packing colloid 4 in the filling perforation being filled in pedestal 1.
This reflection subassembly 5 is for having the packing colloid surface of reflective character, coatings, speculum or reflective sheeting, it is arranged on this packing colloid 4, light beam in order to relative this luminescence component 2 sets up the reflection optical path that reflects at least one times in this light detection element 3, and through the waveguide formed in this packing colloid 4, light can be retrained within it propagate, make this light detection element 3 absorb enough luminous powers.
Above-mentioned light source control structure can comprise lens 6 further, and these lens 6 are arranged at the top of this reflection subassembly 5.In this way, the light source control structure that above Structure composing one is brand-new.
In the present embodiment, pedestal 1 is SMD type assembly, be fixed on a circuit board with surface mounting technique, and use VCSEL as luminescence component 2, MPD is as light detection element 3, and this luminescence component 2 is arranged in the filling perforation 11 of same pedestal 1 with this light detection element 3, and encapsulating forms packing colloid 4 in this filling perforation 11, wherein due to light beam that VCSEL launches, the situation of waveguide can be formed in this packing colloid 4, reduce the light loss of light beam on whole light path, make MPD Absorbable rod to enough luminous powers, more due to after overall structure encapsulating, its middle light path is clean and free of contamination situation, scanning position can be made more accurate, and then the sensitivity of product (as mobile phone) can be increased, so that gesture induction device (Gesture Sensing), the same tone of the different systems such as motion sensor (Motion Sensing) is all applicable, simultaneously light path reduce the use also can omitting lens further, in addition, light detection element 3 is after absorbing enough luminous powers, the situation that this luminescence component 2 operates in the best can be controlled when using under, reduce its light source output power, except reaching power saving and except energy-conservation effect, its lower powered use more can ensure the eye-safe of user, avoids light ray energy to cause too by force the burden of user's eyes, to meet product safety.By this, light source control structure that the present invention carries, through encapsulating in SMD type assembly or arrange speculum thereon further, overall dimensions can be made to reduce, and without the need to making under airtight environment, be applicable to now light and handy little again product (as mobile phone) use, and significantly can reduce production cost (differing more than ten times), therefore have that volume is little, cost is low and mass producible effect.
In sum, the utility model is a kind of light source control structure, effectively can improve the various shortcoming of prior art, through encapsulating in SMD type assembly or arrange speculum thereon further, MPD can be made to absorb enough luminous powers, and then can when using under the situation of control VCSEL running in the best, reduce its light source output power, to ensure the eye-safe of user and to meet product safety, overall dimensions more can be made to reduce, be applicable to now light and handy little again product to use, and due to without the need to making under airtight environment, also significantly production cost can be reduced, therefore there is volume little, low and the mass producible effect of cost, and then it is more progressive to make the utility model produce, more practical, more meeting user institute must, indeed meet the important document of new patent application, patent application is proposed in accordance with the law.
Only the above, be only preferred embodiment of the present utility model, when can not limit the scope of the utility model enforcement with this.Therefore, all simple equivalence changes done according to the utility model claim and novel description with modify, all should still belong in scope that the utility model patent contains.
Claims (9)
1. a light source control structure, it comprises the luminescence component launching a light beam, it is characterized in that, this structure also comprises pedestal, in order to receive light beam that this luminescence component transmits to control the light detection element of the luminous power of this luminescence component transmitted beam, packing colloid and reflection subassembly further, this pedestal has filling perforation; This luminescence component to be arranged on this pedestal and to be positioned at this filling perforation, this light detection element to be arranged on this pedestal and to be positioned at this filling perforation, cover this luminescence component and this light detection element in the filling perforation that this packing colloid is filled in pedestal, in this packing colloid, form waveguide to make this light beam; This reflection subassembly is arranged on this packing colloid.
2. light source control structure as claimed in claim 1, it is characterized in that, described pedestal is surface mount component.
3. light source control structure as claimed in claim 1, it is characterized in that, described luminescence component is vertical cavity surface emitting type laser.
4. light source control structure as claimed in claim 1, is characterized in that, described smooth detection element is for monitoring optical detector.
5. light source control structure as claimed in claim 1, it is characterized in that, described packing colloid is epoxy resin or silica gel.
6. light source control structure as claimed in claim 1, is characterized in that, described reflection subassembly is have the packing colloid surface of reflective character, coatings, speculum or reflective sheeting.
7. light source control structure as claimed in claim 1, it is characterized in that, described structure more comprises lens, and these lens are arranged at the top of this reflection subassembly.
8. light source control structure as claimed in claim 1, it is characterized in that, the thickness bottom described pedestal top to this filling perforation is 0.3-1.5 millimeter.
9. light source control structure as claimed in claim 1, it is characterized in that, the thickness bottom described pedestal to this filling perforation is 0.1-0.3 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520335475.6U CN204739538U (en) | 2015-05-22 | 2015-05-22 | Light control structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520335475.6U CN204739538U (en) | 2015-05-22 | 2015-05-22 | Light control structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204739538U true CN204739538U (en) | 2015-11-04 |
Family
ID=54421272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520335475.6U Expired - Fee Related CN204739538U (en) | 2015-05-22 | 2015-05-22 | Light control structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204739538U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107256401A (en) * | 2017-07-12 | 2017-10-17 | 昆山丘钛微电子科技有限公司 | Optical finger print chip-packaging structure |
-
2015
- 2015-05-22 CN CN201520335475.6U patent/CN204739538U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107256401A (en) * | 2017-07-12 | 2017-10-17 | 昆山丘钛微电子科技有限公司 | Optical finger print chip-packaging structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151104 Termination date: 20200522 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |