CN113866934A - Support, circuit board and electronic equipment with fresnel combination lens - Google Patents
Support, circuit board and electronic equipment with fresnel combination lens Download PDFInfo
- Publication number
- CN113866934A CN113866934A CN202111189378.7A CN202111189378A CN113866934A CN 113866934 A CN113866934 A CN 113866934A CN 202111189378 A CN202111189378 A CN 202111189378A CN 113866934 A CN113866934 A CN 113866934A
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- fresnel lens
- light
- fresnel
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- 230000003287 optical effect Effects 0.000 claims abstract description 45
- 238000005192 partition Methods 0.000 claims abstract description 22
- 239000000758 substrate Substances 0.000 claims description 37
- 239000003292 glue Substances 0.000 claims description 9
- 230000004888 barrier function Effects 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 description 22
- 230000001070 adhesive effect Effects 0.000 description 22
- 125000006850 spacer group Chemical group 0.000 description 16
- 238000001514 detection method Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000001746 injection moulding Methods 0.000 description 5
- 239000012780 transparent material Substances 0.000 description 5
- 230000036541 health Effects 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 230000005465 channeling Effects 0.000 description 3
- 230000001795 light effect Effects 0.000 description 3
- 230000001902 propagating effect Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
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Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/02—Simple or compound lenses with non-spherical faces
- G02B3/08—Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
Abstract
The invention provides a support with a Fresnel combination lens, a circuit board and electronic equipment, wherein the support with the Fresnel combination lens comprises a body, and the body comprises: the Fresnel lens comprises a first area, a second area surrounding the first area and a middle area located between the first area and the second area, wherein the first area is provided with a first Fresnel lens, the second area is provided with a second Fresnel lens which is of an annular structure, and the middle area is provided with a light-tight partition. The support with the Fresnel combination lens provided by the invention is compact in structure, and can realize more complex optical functions.
Description
Technical Field
The invention relates to the field of electronics, in particular to a support with a Fresnel combination lens, a circuit board and electronic equipment.
Background
The function of wearing the product at present is constantly perfect, has some wearing products to have the health detection function, including blood oxygen detection, the rhythm of the heart detects, electrocardio detects etc. and the realization of these functions relies on illuminator and optical sensor, and behind the light emission light that the illuminator sent, received by optical sensor after the life body reflection, optical sensor received optical signal utilizes the algorithm to handle, obtains the health detection information of life body. An important part in this kind of wearing product with health detection function is the fresnel lens that is used for spotlight, common fresnel lens among the correlation technique is as an organic whole structure with the transparent lens of equipment drain pan usually, this kind of structure can't adapt to complicated optics to can't realize the multimachine type sharing, the suitability is relatively poor, in addition, adopt the PET diaphragm that has the fresnel line that UV rendition technique formed, then assemble a plurality of PET diaphragms on the support, however this kind of structure assembly process is complicated, the yield is extremely low, the uniformity is poor, and the cost is higher.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. To this end, embodiments of the present invention propose a holder with a fresnel combined lens. The embodiment of the invention also provides the circuit board and the electronic equipment.
The support with the Fresnel combination lens provided by the embodiment of the invention comprises a body, wherein the body comprises: the Fresnel lens comprises a first area, a second area surrounding the first area and a middle area located between the first area and the second area, wherein the first area is provided with a first Fresnel lens, the second area is provided with a second Fresnel lens which is of an annular structure, and the middle area is provided with a light-proof partition.
The body of the support with the Fresnel combination lens provided by the embodiment of the invention comprises the first area, the middle area and the second area which are sequentially sleeved and connected into a whole, so that the structure is compact. The first area and the second area are respectively used as carriers, and the Fresnel patterns are skillfully designed on the first area and the annular second area. Different Fresnel lines can be manufactured on the first region and the second region, namely the optical functions of the first Fresnel lens and the second Fresnel lens can be different, so that the support with the Fresnel combination lens can realize more complex optical functions.
In addition, the light-tight partition of the middle area not only plays a role of connecting the first area and the second area, but also completely separates the second area from the first area, so that the light-tight partition has a function of blocking the isolated light from propagating between the first area and the second area, the light channeling phenomenon is effectively prevented, and the light effect gathering effect is stronger.
In some embodiments, the bracket is integrally formed.
In some embodiments, the first region is provided with a first groove, the first fresnel lens is disposed in the first groove, the second region is provided with a second annular groove, the second groove surrounds the first groove, and the second fresnel lens is disposed in the second groove.
In some embodiments, the outer boundary of the first region is provided with a first step part, and the inner wall of the light-tight partition is provided with a second step part matched with the first step part; and/or
The inner boundary of the second region is provided with a third step part, and the outer wall of the light-tight spacing part is provided with a fourth step part matched with the third step part.
In some embodiments, the body further comprises a third region disposed around the second region, and at least one positioning post is disposed on the third region and used for positioning the support.
In some embodiments, the body further comprises an annular light seal disposed over the light-tight barrier.
Another aspect of the present invention provides a circuit board comprising: a substrate; and
a support having a fresnel combined lens, the support being according to any one of the embodiments described above, the support being disposed on the substrate.
In some embodiments, the circuit board includes at least one light source and at least one optical sensor disposed on the substrate, and the bracket cover is disposed on the light source and the at least one optical sensor.
In some embodiments, the at least one light source is located opposite the first fresnel lens and the at least one optical sensor is located opposite the second fresnel lens; or the at least one light source is opposite to the second Fresnel lens, and the at least one optical sensor is opposite to the first Fresnel lens.
In some embodiments, the light source is received in the first recess and the optical sensor is received in the second recess, or the light source is received in the second recess and the optical sensor is received in the first recess.
In some embodiments, the first adhesive backing portion and/or the second adhesive backing portion are used for adhering the support and the substrate to each other, wherein the first adhesive backing portion surrounds the first fresnel lens and is adhered to at least the light-tight spacer, and the second adhesive backing portion surrounds the second fresnel lens and is adhered to the second region.
In some embodiments, the substrate is provided with a positioning hole matched with the positioning column.
An embodiment of another aspect of the present invention provides an electronic device, including:
a circuit board according to any one of the above embodiments;
the circuit board is arranged in the shell, and transparent areas corresponding to the first area and the second area in the first direction are arranged at the bottom of the shell.
In some embodiments, the light seal is positioned between the light-tight partition and the housing and against the housing in the first direction.
Drawings
FIG. 1 is a side view of a support with a Fresnel combination lens according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of another side of a support with a fresnel combination lens according to an embodiment of the invention.
Fig. 3 is a structural analysis diagram of a holder with a fresnel combined lens according to an embodiment of the present invention.
Fig. 4 is a cross-sectional view of a holder with a fresnel combined lens according to an embodiment of the present invention.
Fig. 5 is a partially exploded view of an electronic device according to an embodiment of the present invention.
Fig. 6 is a partially exploded view of the electronic device of the embodiment of the present invention.
Fig. 7 is a cross-sectional view of an electronic device of an embodiment of the invention.
Fig. 8 is a partial schematic view of fig. 7.
FIG. 9 is a schematic view of a lens of an embodiment of the invention.
Reference numerals:
1. a support; 2. an electronic device; 11. a first region; 111. a first Fresnel lens; 112. a first groove; 12. an opaque spacer; 13. a second region; 131. a second Fresnel lens; 132. a positioning column; 133. a second groove; 134. a third region; 14. a substrate; 141. a light source; 142. an optical sensor; 143. positioning holes; 151. a first step portion; 152. a second step portion; 153. a third step portion; 154. a fourth step portion; 161. a first back glue portion; 162. a second back glue portion; 17. a housing; 171. a through hole; 18. a lens; 181. a first annular ink zone; 182. a second annular ink zone; 183. a first transparent region; 184. a second transparent region; 19. and a light sealing member.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
The support 1 with the fresnel combined lens provided by the embodiment of the present invention is described below with reference to fig. 1 to 4. As shown in the figures, the support 1 provided in the embodiment of the present invention includes a body, and the body includes a first region 11, a second region 13 surrounding the first region 11, and an intermediate region located between the first region 11 and the second region 13, where the first region 11 is provided with a first fresnel lens 111, the second region 13 is provided with a second fresnel lens 131, the second fresnel lens 131 is of an annular structure, and the intermediate region is provided with a light-tight partition 12.
The body of the bracket 1 provided by the embodiment of the invention comprises a first area 11, a middle area and a second area 13 which are sequentially sleeved and connected into a whole, and the structure is compact. The first area 11 and the second area 13 are respectively used as carriers, and Fresnel patterns are skillfully designed on the first area 11 and the annular second area 13. Different fresnel patterns can be made on the first region 11 and the second region 13, that is, the optical functions of the first fresnel lens 111 and the second fresnel lens 131 can be different, so that the support 1 can realize more complex optical functions.
In addition, the opaque partition 12 in the middle region not only serves to connect the first region 11 and the second region 13, but also completely separates the second region 13 from the first region 11, so that the opaque partition has the function of blocking the isolated light from propagating between the first region 11 and the second region 13, and effectively prevents the occurrence of a light channeling phenomenon, so that the light effect concentration effect is stronger, and therefore, the bracket 1 in the embodiment of the invention has higher accuracy and higher light concentration effect.
An embodiment of the present invention also provides a circuit board including a substrate 14 and the bracket 1 in any one of the above embodiments, the bracket 1 and the substrate 14 being stacked in the first direction and connected to each other.
Specifically, as shown in fig. 5, a light source 141 and a plurality of optical sensors 142 are provided on one side of the substrate 14, the plurality of optical sensors 142 are spaced around the light source 141, and the holder 1 is connected to the substrate 14 and is opposed to the first fresnel lens 111 in the first direction, and the plurality of optical sensors 142 are opposed to the second fresnel lens 131 in the first direction.
In other embodiments, the light source 141 may be plural. Also, the light source 141 may be opposite to the second fresnel lens 131 in the first direction, and the optical sensor 142 is opposite to the first fresnel lens 111 in the first direction.
The light source 141 of the circuit board provided by the embodiment of the invention is used for emitting light, the light passes through the first fresnel lens 111 and is collected and then reflected by the living body, the reflected light passes through the second fresnel lens 131 and is collected and then is sensed by the optical sensor 142, and the optical signal received by the optical sensor 142 is processed by using an algorithm, so that the health detection information of the living body is obtained. An alternative implementation of the circuit board is a PCB board
The embodiment of the invention also provides the electronic equipment 2. The electronic device 2 includes the circuit board in any of the above embodiments and a housing 17, the circuit board is disposed in the housing 17, and the bottom of the housing 17 is provided with transparent regions corresponding to the first region 11 and the second region 13 in the first direction.
The electronic device 2 may be a wearable electronic device 2 with blood oxygen detection function or an electronic device 2 with other similar functions. Through verification, the electronic device 2 provided by the embodiment of the invention has the advantages of less light leakage, high optical performance, simplicity in assembly, low cost and high accuracy of detection results.
The cradle 1 and the electronic device 2 according to the embodiment of the present invention will be described in detail with reference to fig. 1 to 9.
As shown in fig. 1-4, the stent 1 of some embodiments of the present disclosure includes a first region 11, a middle region, and a second region 13. The intermediate region is provided with a light-tight spacer 13, the first region 11 being circular, the light-tight spacer 12 and the second region 13 being circular. The first region 11 includes a circular first fresnel lens 111 in the middle. The opaque spacer 12 is disposed over the first region 11 and connected to the first region 11. The second region 13 is provided with an opaque partition 12 and connected to the opaque partition 12, the second region 13 is provided with a second fresnel lens 131, and the second fresnel lens 131 surrounds the first fresnel lens 111. The opaque spacers 12 are opaque spacers, and the opaque spacers 12 separate the first region 11 from the second region 13 to achieve optical separation. That is, the light path between the first region 11 and the second region 13 is completely blocked by the opaque partition 12, which is advantageous for improving the accuracy of the holder 1.
In some embodiments of the present disclosure, in order to make the structure of the holder 1 more reasonable, the first fresnel lens 111 and the light-proof partition 12 coincide with the central axis of the second fresnel lens 131 and extend in the first direction.
In some embodiments, the bracket 1 is integrally formed using a two-shot molding process. The first region 11 and the second region 13 are each formed of a transparent material. Or may be made in other ways, and the embodiments of the disclosure are not limited thereto.
Alternatively, the opaque spacers 12 are made of a black material, and the opaque spacers 12 made of a black material can better block the light transmission between the first region 11 and the second region 13, avoiding light leakage.
The bracket 1 is integrally formed by adopting a double-color injection molding process, namely the first area 11, the light-tight spacing part 12 and the second area 13 are formed at one time, so that the integrity is stronger, the consistency is better, the process is simple, the efficiency is high, and the cost is low. Specifically, the second region 13 is formed by molding a transparent material, the second fresnel lens 131 is formed by fabricating fresnel patterns on the second region 13, the first region 11 is formed by molding a transparent material, and the first fresnel lens 111 is formed by fabricating fresnel patterns on the first region 11. The second region 13 and the first region 11 are first injection-molded bodies. The opaque spacer 12 is formed of a black material and is a second injection-molded body, and the opaque spacer 12 covers the first injection inlet of the circular first region 11. The light-tight partition 12 is a complete closed ring, which can completely separate the circular first region 11 and the ring-shaped second region 13, and can be skillfully realized by a two-color injection molding process.
Alternatively, the first region 11 and the second region 13 are made of the same material. It will be appreciated that the materials from which the first region 11 and the second region 13 are made may also be different.
For convenience of description, the up-down direction is hereinafter indicated by the arrow direction shown in fig. 4, and the first direction extends in the up-down direction.
The first region 11 is provided with a first groove 112, in which the first fresnel lens 111 is arranged and is designed as a groove bottom of the first groove 112. The second region 13 forms a second groove 133, the second groove 133 surrounding the first groove 112, the second fresnel lens 131 being arranged in the second groove and being configured as a groove bottom of the second groove 133. Specifically, as shown in fig. 4, a part of the upper surface of the first region 11 is recessed downward to form a first groove 112, and the first groove 112 is located in the middle of the first region 11. Fresnel patterns are formed on the groove bottom surfaces of the first grooves 112 of the first region 11, so that the groove bottoms of the first grooves 112 form the first fresnel lenses 111. A part of the upper surface of the second region 13 is recessed downward to form a second groove 133, and a fresnel pattern is formed on the groove bottom surface of the second groove 133, so that the second fresnel lens 131 is formed at the groove bottom of the second groove 133.
Optionally, the fresnel patterns forming the first fresnel lens 111 may be different from those of the second fresnel lens 131, so that the first fresnel lens 111 and the second fresnel lens 131 achieve different optical functions, and the support 1 according to some embodiments of the present disclosure has more complex optical functions.
In order to provide greater structural stability of the holder 1, a plurality of step structures are provided at the junction of the first region 11 and the light-tight partition 12, and at the junction of the second region 13 and the light-tight partition 12.
Specifically, as shown in fig. 4, the outer boundary of the first region 11 is provided with a first step 151, the inner wall of the light-tight spacer 12 is provided with a second step 152 matching with the first step 151, and the first step 151 abuts against the second step 152. The inner boundary of the second region 13 is provided with a third step 153 protruding inward, the outer wall of the light-tight partition 12 is provided with a fourth step 154 matching with the third step 153, and the third step 153 abuts against the fourth step 154. As shown by the arrows in fig. 4, the first step portion 151 abuts on the second step portion 152, and the third step portion 153 abuts on the fourth step portion 154.
Further, the body further comprises a third area 134 surrounding the second area 13, at least one positioning column 132 is disposed on the third area 134, and the positioning column 132 is used for positioning the support 1. The body also comprises an annular light seal 19, the light seal 19 being arranged around the first fresnel lens 111 and being connected to one side of the light-tight barrier 12. In some embodiments, the light seal 19 is integrally formed with the opaque partition 12.
As shown in fig. 5 to 9, the electronic device 2 includes a circuit board including the holder 1 and the substrate 14 in any one of the above embodiments, and a housing 17.
As shown in fig. 5, a light source 141 and a plurality of optical sensors 142 are provided on one side of the substrate 14, the plurality of optical sensors 142 are spaced around the light source 141, and the support 1 is connected to the substrate 14 to be opposite in the first direction. Wherein the light source 141 is opposite to the first fresnel lens 111 in the first direction and the plurality of optical sensors 142 are opposite to the second fresnel lens 131 in the first direction. Optionally, the light source 141 is a light emitting three-color light source 141.
In order to facilitate the mounting of the bracket 1 and the substrate 14, the substrate 14 is provided with positioning holes 143 matched with the positioning posts 132, and the positioning posts 132 pass through the positioning holes 143. As shown in fig. 5 and 8, in some embodiments of the present disclosure, two positioning pillars 132 are disposed on the third area 134 and are opposite to each other in the radial direction of the support 1, two positioning holes 143 are disposed on the substrate 14, the two positioning pillars 132 are disposed in one-to-one correspondence with the two positioning holes 143, and the positioning pillars 132 pass through the positioning holes 143 corresponding thereto.
In some embodiments, the third area 134 of the electronic device provided by the embodiments of the present invention is provided with a plurality of positioning pillars 132, so that the positioning is more accurate when the bracket 1 and the substrate 14 are mounted.
For convenience of description, the up-down direction is hereinafter indicated by the arrow direction shown in fig. 8, and the first direction extends in the up-down direction. The substrate 14 is positioned above the support 1. A light source 141 located in the middle of the substrate 14 extends downward into the first groove 112 opposite the first fresnel lens 111, and a plurality of optical sensors 142 surrounding the light source 141 extend downward into the second groove 133 opposite the second fresnel lens 131. It is understood that in other embodiments, the light source 141 may extend downwardly into the second groove 133 opposite the second fresnel lens 131, and the optical sensor 142 may extend downwardly into the first groove 112 opposite the first fresnel lens 111.
To enable the connection of the fresnel combination lens to the substrate 14, the electronic device 2 in some embodiments of the present disclosure includes a first adhesive backing 161 and a second adhesive backing 162. The first back glue portion 161 and the second back glue portion 162 have an adhesion effect. As shown in fig. 5 and 8, the first adhesive backing portion 161 and the second adhesive backing portion 162 are both located between the holder 1 and the substrate 14, and are both adhered to each of the holder with the fresnel combination lens and the substrate 14. The first back adhesive portion 161 surrounds the first fresnel lens 111 and is adhered to at least the opaque partition 12, and the second back adhesive portion 162 surrounds the second fresnel lens 131 and is adhered to the second region 13. The arrangement of the first adhesive backing portion 161 and the second adhesive backing portion 162 is beneficial to form stronger stability between the bracket 1 and the substrate 14.
Specifically, as shown in fig. 8, the first adhesive backing portion 161 is located between the holder 1 and the substrate 14 in the first direction, and has an upper surface adhered to the substrate 14 and a lower surface adhered to the holder 1. In some embodiments of the present disclosure, the first back adhesive portion 161 is opposite to the light-proof spacer 12 in the up-down direction, and the lower surface thereof is in adhesive relation with the upper surface of the light-proof spacer 12, the upper surface of the first region 11, and the upper surface of the second region 13. It is understood that in other embodiments, the first backing adhesive 161 may be adhered only to the upper surface of the opaque spacer 12. The first back adhesive portion 161 surrounds the first fresnel lens 111, a closed cavity is formed between the substrate 14 and the support 1 by the first back adhesive portion 161, and the light source 141 opposite to the first fresnel lens 111 is located in the cavity, so that the light source 141 is effectively protected.
The second adhesive backed portion 162 is located between the bracket 1 and the substrate 14 in the first direction, and has an upper surface adhered to the substrate 14 and a lower surface adhered to the second area 13. The second back adhesive portion 162 surrounds the second fresnel lens 131, which is opposite to the second region 13 in the up-down direction. The arrangement of the second adhesive backing portion 162 between the substrate 14 and the support 1 forms an annular closed cavity, and the optical sensor 142 opposite to the second fresnel lens 131 is located in the cavity, so that the optical sensor 142 is effectively protected.
As shown in fig. 8, the light source 141 and the first fresnel lens 111 have a space therebetween in the vertical direction, and the optical sensor 142 and the second fresnel lens 131 have a space therebetween in the vertical direction.
As shown in fig. 6, 7 and 9, the housing 17 includes a main body having a through hole 171 in the middle thereof and a lens 18 mounted at the through hole 171. Optionally, the body is adhesively attached to the lens 18. The main part is as an organic whole alone with lens 18, simple structure, and the equipment is convenient, and the cost is lower, and the main part can concentration do the processing in appearance, does not influence the structure of lens 18 and support 1, and is nimble convenient.
The main body of the case 17 is connected to the substrate 14, and the holder 1 is interposed between the case 17 and the substrate 14. The lens 18 is opposed to the holder 1 in the first direction, the lens 18 has a first annular ink area 181 and a second annular ink area 182, the second annular ink area 182 forms a first transparent area 183 in the middle, the first annular ink area 181 surrounds the second annular ink area 182 with a space therebetween to form a second transparent area 184 in an annular shape, the first transparent area 183 is opposed to the first fresnel lens 111 in the first direction, and the second transparent area 184 is opposed to the second fresnel lens 131 in the first direction.
Optionally, the first annular ink zone 181 and the second annular ink zone 182 are screen printed on the lens 18.
Further, as shown in fig. 8, a light seal 19 is located between the lens 18 and the holder having the fresnel combination lens in the first direction, one side of the light seal 19 is connected to the light-proof partition 12, and the other side of the light seal 19 is abutted against the lens 18. The arrangement of the light sealing member 19 can further avoid the problem of light channeling between the first fresnel lens 111 and the second fresnel lens 131, and improve the optical performance and the detection accuracy of the electronic device 2 according to some embodiments of the disclosure.
The housing 17 and the bracket 1 in the electronic device 2 according to some embodiments of the present disclosure are separate structures, that is, they are completed independently before assembly, which means that the bracket 1 in the electronic device 2 is replaceable, which is beneficial to implement multi-model sharing and improves the applicability of the electronic device 2. In addition, the shell 17, the substrate 14 and the bracket 1 in the electronic device 2 according to some embodiments of the present disclosure are simple to assemble, high in assembly efficiency, and good in consistency, and are beneficial to controlling cost.
The embodiment of the disclosure discloses a support that contains annular outer lane body, annular island and circular inner circle body to with the fresnel pattern setting within annular outer lane body and circular inner circle body, accessible mould double-shot moulding or other modes integrated into one piece, compact structure.
In some embodiments, the annular outer ring body is formed of a transparent material and the annular outer ring fresnel patterns are formed thereon, and similarly, the circular inner ring body is formed of a transparent material and the circular inner ring fresnel patterns are formed thereon. Optionally, the annular outer ring body and the circular inner ring body are formed by injection molding.
In some embodiments, an annular island structure connects the annular outer ring body and the circular inner ring body, the annular island being molded of black material to block isolated light from propagating between the annular body and the circular body. Optionally, the annular island is formed by second injection molding, and the second injection molding covers the first injection glue inlet of the circular inner ring body.
In some embodiments, the annular island is a fully closed ring, completely blocking the annular outer ring body and the inner ring body apart. In the embodiment of the disclosure, the annular outer ring body, the circular inner ring body and the annular island structure are formed together, the process is simple and ingenious in structure, the efficiency is high, the cost is low, the integrity is strong, and the consistency is better. In some embodiments, positioning columns can be designed on the front and back surfaces of the annular outer ring body, the assembly and positioning are accurate, and the relative positioning progress of the annular outer ring and the circular inner ring is guaranteed. In some embodiments, the annular outer ring body and the circular inner ring body are provided with optical fresnel patterns by precisely assembling the positioning columns of the annular outer ring body on the PCB board. In some embodiments, the optical sensing devices on the PCB are annularly arranged, the intermediate device is a luminous three-color lamp, the outer ring is uniformly annularly arranged with multiple PDs, and the annular island black pigment not only isolates the annular body from the circular body, but also realizes the function of communicating the annular body with the circular body; namely a closed combined type integrated bracket structure which forms an annular body and surrounds a circular body; therefore, simple assembly, enhanced light effect aggregation and device shielding effect are realized.
In some embodiments, two positioning columns on the annular body are assembled and positioned on the PCB, and a sealed cavity is formed by sealing the optical back adhesive, so that the sensor device can be effectively protected, an integrated structure which is stable and high in consistency with the relative position of the sensor is formed, and the integrated structure is integrally assembled on the bottom shell together with the PCB (a transparent lens is assembled by dispensing at the position corresponding to the bottom shell, and the lens corresponds to the annular body and is a transparent area with the circular body).
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (14)
1. A support with a Fresnel combination lens, comprising a body, the body comprising:
the Fresnel lens comprises a first area, a second area surrounding the first area and a middle area located between the first area and the second area, wherein the first area is provided with a first Fresnel lens, the second area is provided with a second Fresnel lens which is of an annular structure, and the middle area is provided with a light-proof partition.
2. The bracket of claim 1, wherein the bracket is integrally formed.
3. A support according to claim 1 or 2, wherein the first region is provided with a first groove in which the first fresnel lens is disposed, and the second region is provided with an annular second groove surrounding the first groove in which the second fresnel lens is disposed.
4. The holder according to any one of claims 1 to 3, wherein the outer boundary of the first region is provided with a first step portion, and the inner wall of the light-tight partition is provided with a second step portion matching the first step portion; and/or
The inner boundary of the second region is provided with a third step part, and the outer wall of the light-tight spacing part is provided with a fourth step part matched with the third step part.
5. A stand according to any one of claims 1 to 4 wherein the body further comprises a third region disposed around the second region, the third region having at least one locating post disposed thereon for locating the stand.
6. The holder of any one of claims 1-5, wherein the body further comprises an annular light seal disposed over the light-tight barrier.
7. A circuit board, comprising:
a substrate; and
a support having a fresnel combination lens, the support being according to any one of claims 1-6, the support being disposed on the substrate.
8. The circuit board of claim 7, further comprising: the bracket comprises at least one light source and at least one optical sensor which are arranged on the substrate, and the bracket is covered on the light source and the at least one optical sensor.
9. The circuit board of claim 8, wherein the at least one light source is located opposite the first fresnel lens and the at least one optical sensor is located opposite the second fresnel lens; or
The at least one light source is opposite to the second Fresnel lens, and the at least one optical sensor is opposite to the first Fresnel lens.
10. Circuit board according to one of claims 7 to 9,
the light source is accommodated in the first recess and the optical sensor is accommodated in the second recess, or
The light source is accommodated in the second groove, and the optical sensor is accommodated in the first groove.
11. The circuit board of any one of claims 7-10, further comprising: the first back glue part and the second back glue part are used for mutually adhering the support and the substrate, the first back glue part surrounds the first Fresnel lens and is at least adhered to the light-tight spacing part, and the second back glue part surrounds the second Fresnel lens and is adhered to the second area.
12. The circuit board according to any one of claims 7-11, wherein the substrate is further provided with positioning holes adapted to the positioning posts of the support.
13. An electronic device, comprising:
a circuit board according to any one of claims 7-12;
the circuit board is arranged in the shell, and a transparent area corresponding to the first area and the second area is arranged at the bottom of the shell.
14. The electronic device of claim 13, wherein the light seal of the bracket is positioned between the light-tight barrier and the housing and against the housing.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111189378.7A CN113866934A (en) | 2021-10-12 | 2021-10-12 | Support, circuit board and electronic equipment with fresnel combination lens |
| PCT/CN2022/106901 WO2023060975A1 (en) | 2021-10-12 | 2022-07-20 | Stent having fresnel combination lens, circuit board, and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111189378.7A CN113866934A (en) | 2021-10-12 | 2021-10-12 | Support, circuit board and electronic equipment with fresnel combination lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113866934A true CN113866934A (en) | 2021-12-31 |
Family
ID=78999249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111189378.7A Pending CN113866934A (en) | 2021-10-12 | 2021-10-12 | Support, circuit board and electronic equipment with fresnel combination lens |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113866934A (en) |
| WO (1) | WO2023060975A1 (en) |
Cited By (3)
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| CN115032727A (en) * | 2022-05-19 | 2022-09-09 | 苏州奥浦迪克光电技术有限公司 | Lens and detection module and wearing equipment |
| WO2023060975A1 (en) * | 2021-10-12 | 2023-04-20 | 安徽华米信息科技有限公司 | Stent having fresnel combination lens, circuit board, and electronic device |
| WO2023246617A1 (en) * | 2022-06-22 | 2023-12-28 | 华为技术有限公司 | Fresnel film and preparation method therefor, optical detection module, and wearable device |
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| CN105895641A (en) * | 2015-02-13 | 2016-08-24 | 台医光电科技股份有限公司 | Optical sensing module, optical sensing accessory, and optical sensing device |
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| WO2023060975A1 (en) * | 2021-10-12 | 2023-04-20 | 安徽华米信息科技有限公司 | Stent having fresnel combination lens, circuit board, and electronic device |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2023060975A1 (en) | 2023-04-20 |
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