CN106871041B - Projection lamp device in automobile rearview mirror - Google Patents
Projection lamp device in automobile rearview mirror Download PDFInfo
- Publication number
- CN106871041B CN106871041B CN201710173726.9A CN201710173726A CN106871041B CN 106871041 B CN106871041 B CN 106871041B CN 201710173726 A CN201710173726 A CN 201710173726A CN 106871041 B CN106871041 B CN 106871041B
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- Prior art keywords
- lens
- fixing seat
- positioning
- light source
- transparent plastic
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- 230000003287 optical effect Effects 0.000 claims abstract description 66
- 229920003023 plastic Polymers 0.000 claims abstract description 43
- 239000002985 plastic film Substances 0.000 claims abstract description 35
- 239000000758 substrate Substances 0.000 claims description 9
- 230000007797 corrosion Effects 0.000 abstract description 6
- 238000005260 corrosion Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 description 16
- 230000000694 effects Effects 0.000 description 13
- 239000006185 dispersion Substances 0.000 description 8
- 238000003384 imaging method Methods 0.000 description 5
- 230000004075 alteration Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V31/00—Gas-tight or water-tight arrangements
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
- F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Lens Barrels (AREA)
- Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
Abstract
The invention discloses a projection lamp device in an automobile rearview mirror, which is characterized by comprising a shell, an optical assembly and a light source, wherein the optical assembly and the light source are arranged in the shell, the light source is arranged right above the optical assembly, the optical assembly comprises a transparent plastic sheet with a preset pattern, an upper optical lens for converging light rays emitted by the light source on the transparent plastic sheet and a lower optical lens for amplifying the pattern on the transparent plastic sheet into projection, and an opening hole is arranged at the bottom of the shell and is positioned right below the lower optical lens and used for projecting images of the pattern. Compared with the film, the transparent plastic sheet has better corrosion resistance and weather resistance because the transparent plastic sheet does not have a chemical photosensitive material, and the printed layer is not easy to oxidize and fall off, so that the pattern negative in the projection lamp has better stability, is not easy to distort, is easy to store and can be used for a long time.
Description
Technical Field
The invention relates to the technical field of automobile accessories, in particular to a projection lamp device in an automobile rearview mirror.
Background
Along with the increasing of the living standard of people, the requirements of people on the individuation of automobiles are higher and higher, and the realization of colorful projection by utilizing light is one of the individuation requirements, and the colorful pattern not only can make people pleasant, feel different, but also can play a role of illumination. At present, a projection lamp device in an automobile rearview mirror is generally realized through a film, and the film is relatively poor in corrosion resistance and weather resistance and easy to damage, needs to be replaced regularly and brings bad experience to users.
Disclosure of Invention
Based on the above, the invention aims to overcome the defects of the prior art and provide a projection lamp device in an automobile rearview mirror, which replaces the traditional film by a new projection film, can increase the weather resistance and corrosion resistance of the film and ensures the use of the projection lamp.
The technical scheme is as follows:
the utility model provides a projection lamp device in automobile rearview mirror, includes the shell and locates optical subassembly and light source in the shell, the light source is located directly over the optical subassembly, optical subassembly is including predetermineeing the transparent plastic sheet of pattern, be used for converging the light that the light source sent on the transparent plastic sheet go up optical lens and be used for with pattern on the transparent plastic sheet enlarges into projected optical lens down, go up optical lens transparent plastic sheet with optical lens down connects gradually from top to bottom, the bottom of shell is equipped with and is located under the optical lens down, be used for with the trompil that the image of pattern was projected, the transparent plastic sheet includes transparent plastic substrate and locates printing layer on the transparent plastic substrate, the printing layer is equipped with the pattern of processing formation.
In one embodiment, the upper optical lens comprises a first lens and a second lens which are sequentially arranged from top to bottom, the first lens comprises a first fixing seat and a first lens arranged in the first fixing seat, the first lens is a lower convex lens, the second lens comprises a second fixing seat and a second lens arranged in the second fixing seat, the second lens is a biconvex lens, and the first fixing seat and the second fixing seat are vertically combined.
In one embodiment, the lower optical lens includes a third lens, a fourth lens and a fifth lens sequentially arranged from top to bottom, the third lens includes a third fixing seat and a third lens disposed in the third fixing seat, the third lens is a biconvex lens, the fourth lens includes a fourth fixing seat and a fourth lens disposed in the fourth fixing seat, the fourth lens is a biconcave lens, the fifth lens includes a fifth fixing seat and a fifth lens disposed in the fifth fixing seat, the fifth lens is a biconvex lens, and the third fixing seat, the fourth fixing seat and the fifth fixing seat are vertically combined.
In one embodiment, the lower optical lens further includes a light shielding ring, and the light shielding ring is disposed in the third fixing seat and located above the third lens.
In one embodiment, the upper optical lens comprises a first lens and a second lens which are sequentially arranged from top to bottom, the first lens comprises a first fixing seat and a first lens arranged in the first fixing seat, the second lens comprises a second fixing seat and a second lens arranged in the second fixing seat, a first positioning structure used for positioning connection is arranged between the first fixing seat and the second fixing seat, a second positioning structure used for positioning connection is arranged between the second fixing seat and the third fixing seat, a third positioning structure used for positioning connection is arranged between the third fixing seat and the fourth fixing seat, and a fourth positioning structure used for positioning connection is arranged between the fourth fixing seat and the fifth fixing seat.
In one embodiment, the second positioning structure comprises a positioning slot hole arranged at the bottom end of the second fixing seat and a positioning rib arranged at the top end of the third fixing seat, the positioning slot holes are in one-to-one correspondence with the positioning ribs, and the transparent plastic sheet is provided with positioning clamping grooves which are in one-to-one correspondence with the positioning ribs and are matched with each other.
In one embodiment, the number of the positioning ribs is three, and the three positioning ribs are uniformly arranged along the circumferential direction of the third fixing seat.
In one embodiment, the light source module further comprises a light source circuit board for mounting the light source, wherein the light source circuit board is covered on the top opening of the shell and is locked on the shell through a fastener.
In one embodiment, the optical lens further comprises a first sealing ring and a second sealing ring, a first accommodating groove is concavely formed in the top of the shell, the first sealing ring is arranged in the first accommodating groove and used for propping against the light source circuit board, a second accommodating groove is concavely formed in the edge of the opening, and the second sealing ring is arranged in the second accommodating groove and used for propping against the bottom end of the lower optical lens.
In one embodiment, the light source module further comprises a driving circuit board and a power supply connecting assembly arranged on the driving circuit board, wherein the driving circuit board is covered on the side opening of the shell and is electrically connected with the light source circuit board.
The effect or principle of the invention is as follows:
compared with the film, the transparent plastic sheet has better corrosion resistance and weather resistance because the transparent plastic sheet is not provided with a chemical photosensitive material, and the printed layer is not easy to oxidize and fall off, so that the pattern negative in the projection lamp has better stability, is not easy to distort, is easy to store, can be used for a long time, prolongs the service life of the projection negative, avoids the trouble of periodically replacing the projection negative by a customer, and improves the use experience of the user. In addition, the transparent plastic sheet has a simple structure, and compared with the traditional film, the transparent plastic sheet has a simpler manufacturing process and is easy to realize.
The upper optical lens comprises a first lens and a second lens which are sequentially arranged from top to bottom, and the first lens and the second lens are matched with each other, so that the light converging effect is better, and more light can be ensured to be converged into the transparent plastic sheet.
The lower optical lens comprises a third lens, a fourth lens and a fifth lens which are sequentially arranged from top to bottom, the fourth lens is added between the third lens and the fifth lens for amplifying the transmission proportion, the lower optical lens is combined to enable light rays to be more concentrated, chromatic dispersion generated by a white light LED light source using composite light is reduced, blue edges and yellow edges are eliminated, the chromatic dispersion correcting effect is achieved, pattern lighting chromatic aberration is reduced, and therefore imaging effect is optimized.
The lower optical lens further comprises a light shielding ring, and the light shielding ring can ensure that light rays are not leaked outwards and further achieve the effect of correcting chromatic dispersion.
The invention is characterized in that a first positioning structure is arranged between the first lens and the second lens, a second positioning structure is arranged between the second lens and the third lens, a third positioning structure is arranged between the third lens and the fourth lens, and a fourth positioning structure is arranged between the fourth lens and the fifth lens. On the one hand, the positioning structure is arranged between two adjacent assemblies, so that the direction and the angle of projection can be prevented from being changed due to the fact that the components of the upper optical lens and the components of the lower optical lens are arranged in a staggered manner (are not aligned up and down); on the other hand, by providing corresponding positioning structures between two adjacent assemblies, the positioning structures can be provided in different structures with distinguishing features for preventing the mounting sequence between the components of the upper optical lens and between the components of the lower optical lens from being misplaced, thereby affecting the imaging quality of projection.
The three positioning ribs are uniformly arranged along the circumferential direction of the third fixing seat, so that stable and reliable connection between the second fixing seat and the third fixing seat is ensured, and the stress is balanced.
In addition, the first sealing ring, the second sealing ring and the like are arranged in the waterproof and dustproof sealing device, so that the sealing performance is ensured, and good waterproof and dustproof effects can be achieved.
Drawings
Fig. 1 is a schematic structural view of a projection lamp device in an automobile rearview mirror according to an embodiment of the invention;
FIG. 2 is an exploded view of a projection lamp assembly in an automotive rearview mirror according to an embodiment of the invention;
FIG. 3 is an exploded view of an optical assembly according to an embodiment of the present invention;
FIG. 4 is an exploded view of an upper optical lens according to an embodiment of the present invention;
FIG. 5 is an exploded view of a lower optical lens according to an embodiment of the present invention;
FIG. 6 is a schematic diagram illustrating an assembly of a retainer ring, a second seal ring, and an optical assembly according to an embodiment of the present invention;
fig. 7 is an assembly schematic diagram of the light source circuit board, the driving circuit board and the housing according to the embodiment of the invention.
Reference numerals illustrate:
100. the lens assembly comprises a shell, 210, a first lens, 211, a first fixing seat, 220, a second lens, 221, a second fixing seat, 230, a third lens, 231, a third fixing seat, 240, a fourth lens, 241, a fourth fixing seat, 250, a fifth lens, 251, a fifth fixing seat, 260, a shading ring, 270, a transparent plastic sheet, 271, a positioning clamping groove, 300, a light source circuit board, 310, a light source, 320, a fastener, 400, a fixing ring, 500, a first sealing ring, 600, a second sealing ring, 710, a first positioning structure, 711, a first positioning slot, 712, a first positioning rib, 720, a second positioning structure, 721, a second positioning slot, 722, a second positioning rib, 730, a third positioning structure, 731, a third positioning slot, 732, a third positioning rib, 740, a fourth positioning structure, 741, a fourth positioning slot, 742, a fourth positioning rib, 800, a driving circuit board, 810, a power supply connecting component, 900 and a waterproof cap.
Detailed Description
The present invention will be further described in detail with reference to the drawings and the detailed description, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the detailed description and specific examples are intended for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "fixed" to another element, it can be directly fixed to the other element or be fixed to the other element through intervening elements. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or be connected to the other element through intervening elements. It will be appreciated that the terms "first," "second," and the like, as used herein, are used to distinguish objects and do not limit their order or number.
As shown in fig. 1 and 2, the projection lamp apparatus in the rear view mirror of the automobile according to the present invention includes a housing 100 and an optical assembly and a light source 310 hermetically provided in the housing 100. The light source 310 is disposed directly above the optical assembly. Referring to fig. 3, the optical assembly includes a transparent plastic sheet 270 provided with a predetermined pattern (not shown), an upper optical lens for collecting light emitted from a light source 310 on the transparent plastic sheet 270, and a lower optical lens for magnifying the pattern on the transparent plastic sheet 270 into a projection. The upper optical lens, the transparent plastic sheet 270 and the lower optical lens are sequentially connected together from top to bottom. The bottom of the housing 100 is provided with an aperture (not shown in the drawings) located directly below the lower optical lens for projecting an image of the pattern. The transparent plastic sheet 270 includes a transparent plastic substrate (not shown in the drawing) and a printing layer (not shown in the drawing) disposed on the transparent plastic substrate, where the printing layer is provided with the pattern formed by processing, and the processing may be other patterning processes such as etching. The transparent plastic substrate is preferably a PC (Polycarbonate) substrate, which has abundant sources and low cost, and plastic materials such as PE (polyethylene), PP (polypropylene) and the like can be selected according to actual needs.
Compared with a film, the transparent plastic sheet 270 has better corrosion resistance and weather resistance because no chemical photosensitive material is arranged on the transparent plastic sheet 270, and the printed layer is not easy to oxidize and fall off, so that the pattern negative in the projection lamp has better stability, is not easy to distort, is easy to store, can be used for a long time, prolongs the service life of the projection negative, avoids the trouble of periodically replacing the projection negative by a customer, and improves the use experience of the user. In addition, the transparent plastic sheet 270 of the present invention has a simple structure, and the manufacturing process is simpler than that of the conventional film.
Specifically, the upper optical lens includes a first lens 210 and a second lens 220 sequentially arranged from top to bottom. The first lens 210 includes a first fixing base 211 and a first lens (not labeled in the drawing) disposed in the first fixing base 211, and the first lens is a lower convex lens; the second lens 220 includes a second fixing base 221 and a second lens (not shown in the drawing) disposed in the second fixing base 221, and the second lens is a biconvex lens. The first fixing base 211 and the second fixing base 221 are vertically aligned, so that the first lens and the second lens are vertically aligned. Through the mutual matching of the first lens 210 (lower convex lens) and the second lens 220 (biconvex lens), the converging effect of the light is better, and more light can be ensured to be converged into the transparent plastic sheet.
The lower optical lens includes a third lens 230, a fourth lens 240, and a fifth lens 250, which are sequentially arranged from top to bottom. The third lens 230 includes a third fixing seat 231 and a third lens (not labeled in the drawing) disposed in the third fixing seat 231, and the third lens is a biconvex lens; the fourth lens 240 includes a fourth fixing base 241 and a fourth lens (not labeled in the drawing) disposed in the fourth fixing base 241, where the fourth lens is a biconcave lens; the fifth lens 250 includes a fifth fixing base 251 and a fifth lens (not labeled in the drawing) disposed in the fifth fixing base 251, and the fifth lens is a biconvex lens. The third fixing base 231, the fourth fixing base 241, and the fifth fixing base 251 are vertically aligned, so that the third lens, the fourth lens, and the fifth lens are vertically aligned. In the invention, the fourth lens 240 (biconcave lens) is added between the third lens 230 (biconvex lens) and the fifth lens 250 (biconcave lens) for amplifying the transmission ratio, and the lower optical lens combination enables light to be more concentrated, reduces chromatic dispersion phenomenon generated by a white light LED light source using composite light, eliminates blue edges and yellow edges, achieves the effect of correcting chromatic dispersion, reduces pattern lighting chromatic aberration, and optimizes imaging effect.
Further, referring to fig. 3, the lower optical lens further includes a light shielding ring 260, and the light shielding ring 260 is disposed in the third fixing seat 231 and above the third lens. The aperture 260 can ensure that light is not leaked, so as to further achieve the effect of correcting chromatic dispersion.
In addition, referring to fig. 2, the present invention further includes a light source circuit board 300 (aluminum substrate) for mounting the light source 310, wherein the light source circuit board 300 is covered on the top opening of the housing 100 and is locked on the housing 100 by a fastener 320 (self-tapping screw, etc.). In addition, the invention further comprises a driving circuit board 800 and a power connection assembly 810 arranged on the driving circuit board 800, wherein the power connection assembly 810 is a wire harness assembly or a plug-in unit and is used for connecting an automobile control power supply. The driving circuit board 800 is disposed on the side opening of the housing 100 and electrically connected to the light source circuit board 300, for providing power and driving signals to the light source 310. Up to this point, the driving circuit board 800 and the light source circuit board 300 close the opening on the housing 100.
In this embodiment, the present invention further includes a fixing ring 400, a first sealing ring 500, and a second sealing ring 600. The fixing ring 400 is fixed at the top end of the first fixing base 211 and abuts against the light source circuit board 300, and the light source 310 is located at the inner side of the fixing ring 400. The fixing ring 400 is vertically engaged with the first fixing base 211, and the fixing ring 400 is used for positioning the optical assembly. A first accommodating groove (not shown in the drawing) for accommodating the first sealing ring 500 is concavely formed in the top of the housing 100, and the first sealing ring 500 is located in the first accommodating groove and is used for propping against the circuit board 300 of the light source 310; the bottom of the housing is provided with a second accommodating groove (not labeled in the drawing) in a concave manner at the edge of the opening, wherein the second accommodating groove is used for accommodating the second sealing ring 600, and the second sealing ring 600 is positioned in the second accommodating groove and is used for propping against the bottom end of the lower optical lens. In addition, the housing 100 is further provided with an air tightness detection pipeline, the air tightness detection pipeline is communicated with the interior of the housing 100, and the waterproof cap 900 is sleeved outside the air tightness detection pipeline, so that the waterproof property of the product is improved. In conclusion, the invention can achieve good waterproof and dustproof effects.
It should be noted that, in the present embodiment, referring to fig. 3 to 5, a first positioning structure 710 for positioning connection is disposed between the first fixing base 211 and the second fixing base 221, and the first positioning structure 710 includes a first positioning slot 711 and a first positioning rib 712 that is inserted and matched with the first positioning slot 711; a second positioning structure 720 for positioning connection is arranged between the second fixing base 221 and the third fixing base 231, and the second positioning structure 720 includes a second positioning slot 721 and a second positioning rib 722 in plug-in fit with the second positioning slot 721; a third positioning structure 730 for positioning connection is arranged between the third fixing seat 231 and the fourth fixing seat 241, and the third positioning structure 730 includes a third positioning slot 731 and a third positioning rib 732 in plug-in fit with the third positioning slot 731; a fourth positioning structure 740 for positioning connection is disposed between the fourth fixing base 241 and the fifth fixing base 251, and the fourth positioning structure 740 includes a fourth positioning slot 741 and a fourth positioning rib 742 that is inserted and engaged with the fourth positioning slot 741. On the one hand, the positioning structure is arranged between two adjacent assemblies, so that the direction and the angle of projection can be prevented from being changed due to the fact that the components of the upper optical lens and the components of the lower optical lens are arranged in a staggered manner (are not aligned up and down); on the other hand, the first positioning structure 710, the second positioning structure 720, the third positioning structure 730 and the fourth positioning structure 740 may be different from each other, that is, the positioning structures may be configured as different structures with distinguishing features, so-called different shapes, or different numbers of internal structures (positioning ribs) or the like, so as to prevent the mounting order between the components of the upper optical lens and between the components of the lower optical lens from being misplaced, thereby affecting the imaging quality of projection.
For example, the first positioning rib 712 of the first positioning structure 710 may include two larger-sized positioning ribs (the protrusions shown in fig. 3-6) and one smaller-sized positioning rib, while the third positioning rib 732 of the third positioning structure 730 may include two smaller-sized positioning ribs and one larger-sized positioning rib (further including a positioning slot that mates with the corresponding positioning rib); or three first positioning ribs 712 in the first positioning structure 710 and five third positioning ribs 732 in the third positioning structure 730; alternatively, the first positioning rib 712 of the first positioning structure 710 may have a cylindrical shape, and the third positioning rib 732 of the third positioning structure 730 may have a square cylindrical shape. It should be noted that the foregoing examples are only for illustrating the present embodiment, and should not be construed as limiting the scope of the present invention, and a person skilled in the art may set a corresponding positioning structure between two adjacent components according to actual needs, so that the first lens 210, the second lens 220, the third lens 230, the fourth lens 240 and the fifth lens 250 are assembled in a predetermined order during the production process, and no assembly dislocation occurs.
In addition, referring to fig. 6, a positioning structure (such as a positioning rib and a positioning slot) is also disposed between the fixing ring 400 and the first fixing base 211, so as to facilitate the installation and positioning of the fixing ring 400. The transparent plastic sheet 270 of the present embodiment is clamped between the second lens 220 and the third lens 230. Specifically, referring to fig. 3, the second positioning structure 720 includes a second positioning slot 721 disposed at the bottom end of the second fixing base 221 and a second positioning rib 722 disposed at the top end of the third fixing base 231, the second positioning slot 721 corresponds to the second positioning rib 722 one by one, and the transparent plastic sheet 270 is provided with positioning slots 271 corresponding to the second positioning rib 722 one by one and matched with each other. During actual assembly, the positioning clamping groove 271 is clamped on the second positioning rib 722, and the second positioning rib 722 extends into the positioning slot 721. In the second positioning structure 720, the number of second positioning ribs 722 is preferably three, and the three second positioning ribs 722 are uniformly arranged along the circumferential direction of the third fixing seat 231, so as to ensure stable and reliable connection between the second fixing seat 221 and the third fixing seat 231, and balanced stress.
In summary, the present invention provides a novel projection lamp device in an automobile rearview mirror, which can clearly project personalized patterns, marks, etc. on a transparent plastic sheet 270 through an upper optical lens and a lower optical lens, so as to achieve the purposes of welcome, individuation, etc.; the night illumination function can be realized, the projection has higher practicability and ornamental value, and the personalized requirements of people can be met; on the basis, the invention can also improve the corrosion resistance and weather resistance of the projection negative, so that the negative has better stability and the service life of the negative is prolonged; in addition, the invention can also reduce chromatic dispersion phenomenon, achieve the effect of correcting chromatic dispersion, and reduce pattern lighting chromatic aberration, thereby optimizing imaging effect; the invention has the advantages of simple and compact structure, reasonable design, low cost and easy realization.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention.
Claims (10)
1. The projection lamp device in the automobile rearview mirror is characterized by comprising a shell, an optical assembly and a light source, wherein the optical assembly and the light source are arranged in the shell, the light source is arranged right above the optical assembly, the optical assembly comprises a transparent plastic sheet with a preset pattern, an upper optical lens used for converging light rays emitted by the light source on the transparent plastic sheet and a lower optical lens used for amplifying the pattern on the transparent plastic sheet into projection, the upper optical lens, the transparent plastic sheet and the lower optical lens are sequentially connected from top to bottom, an opening hole is arranged at the bottom of the shell, the opening hole is arranged right below the lower optical lens and used for projecting an image of the pattern, the transparent plastic sheet comprises a transparent plastic substrate and a printing layer arranged on the transparent plastic substrate, and the printing layer is provided with the pattern formed through processing;
the upper optical lens comprises a first lens and a second lens which are sequentially arranged from top to bottom, the first lens comprises a first lens sheet, the first lens sheet is a downward convex lens sheet, the second lens comprises a second lens sheet, and the second lens sheet is a biconvex lens sheet; and
The lower optical lens comprises a third lens, a fourth lens and a fifth lens which are sequentially arranged from top to bottom, wherein the third lens comprises a third lens sheet, the third lens sheet is a biconvex lens sheet, the fourth lens comprises a fourth lens sheet, the fourth lens sheet is a biconcave lens sheet, the fifth lens comprises a fifth lens sheet, and the fifth lens sheet is a biconvex lens sheet.
2. The projection lamp assembly of claim 1, wherein the first lens includes a first mount, the first lens is disposed in the first mount, the second lens includes a second mount, the second lens is disposed in the second mount, and the first mount and the second mount are vertically aligned.
3. The projection lamp assembly of claim 1, wherein the third lens comprises a third holder, the third lens is disposed in the third holder, the fourth lens comprises a fourth holder, the fourth lens is disposed in the fourth holder, the fifth lens comprises a fifth holder, the fifth lens is disposed in the fifth holder, and the third holder, the fourth holder, and the fifth holder are vertically aligned.
4. The projection lamp assembly of claim 3 wherein said lower optical lens further comprises a light shield disposed within said third mount and above said third lens.
5. The projection lamp device in the automobile rearview mirror according to claim 3, wherein the first lens comprises a first fixing seat, the first lens is arranged in the first fixing seat, the second lens comprises a second fixing seat, the second lens is arranged in the second fixing seat, the first fixing seat and the second fixing seat are vertically combined, a first positioning structure for positioning connection is arranged between the first fixing seat and the second fixing seat, a second positioning structure for positioning connection is arranged between the second fixing seat and the third fixing seat, a third positioning structure for positioning connection is arranged between the third fixing seat and the fourth fixing seat, and a fourth positioning structure for positioning connection is arranged between the fourth fixing seat and the fifth fixing seat.
6. The projection lamp assembly of claim 5, wherein the second positioning structure comprises a positioning slot hole at the bottom end of the second fixing seat and a positioning rib at the top end of the third fixing seat, the positioning slot holes are in one-to-one correspondence with the positioning ribs, and the transparent plastic sheet is provided with positioning clamping grooves which are in one-to-one correspondence with the positioning ribs and are matched with each other.
7. The projection lamp assembly of claim 6, wherein the number of said positioning ribs is three, and wherein the three positioning ribs are uniformly arranged along the circumference of said third fixing base.
8. The projection lamp assembly in an automobile rearview mirror according to any one of claims 1-7, further comprising a light source circuit board for mounting said light source, said light source circuit board being disposed over a top opening of said housing and being locked to said housing by fasteners.
9. The projection lamp assembly of claim 8, further comprising a first seal ring and a second seal ring, wherein a first receiving groove is concavely formed in the top of the housing, the first seal ring is disposed in the first receiving groove and is used for abutting against the light source circuit board, a second receiving groove is concavely formed in the edge of the opening, and the second seal ring is disposed in the second receiving groove and is used for abutting against the bottom end of the lower optical lens.
10. The projection lamp assembly of claim 8, further comprising a drive circuit board and a power connection assembly disposed on the drive circuit board, the drive circuit board covering the side opening of the housing and electrically connected to the light source circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710173726.9A CN106871041B (en) | 2017-03-22 | 2017-03-22 | Projection lamp device in automobile rearview mirror |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710173726.9A CN106871041B (en) | 2017-03-22 | 2017-03-22 | Projection lamp device in automobile rearview mirror |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106871041A CN106871041A (en) | 2017-06-20 |
| CN106871041B true CN106871041B (en) | 2023-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710173726.9A Active CN106871041B (en) | 2017-03-22 | 2017-03-22 | Projection lamp device in automobile rearview mirror |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001051193A (en) * | 1999-06-03 | 2001-02-23 | Nikon Corp | Projection optical system projection exposing device provided with the system and manufacture of device |
| CN103809270A (en) * | 2013-12-02 | 2014-05-21 | 中国科学院西安光学精密机械研究所 | Large-view-field quasi-image-space telecentric aerial surveying camera optical system containing diffraction element |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204786004U (en) * | 2015-06-30 | 2015-11-18 | 广东麦格纳汽车镜像有限公司 | Arrange projection lamp in vapour exterior mirror in |
| CN205299320U (en) * | 2016-01-06 | 2016-06-08 | 韩小刚 | Car usher lamp |
| CN206608862U (en) * | 2017-03-22 | 2017-11-03 | 广州维思车用部件有限公司 | Projection lamp device in automobile rearview mirror |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001051193A (en) * | 1999-06-03 | 2001-02-23 | Nikon Corp | Projection optical system projection exposing device provided with the system and manufacture of device |
| CN103809270A (en) * | 2013-12-02 | 2014-05-21 | 中国科学院西安光学精密机械研究所 | Large-view-field quasi-image-space telecentric aerial surveying camera optical system containing diffraction element |
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| CN106871041A (en) | 2017-06-20 |
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