CN112161207A - Light guide and cosmetic mirror - Google Patents
Light guide and cosmetic mirror Download PDFInfo
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- CN112161207A CN112161207A CN202011006798.2A CN202011006798A CN112161207A CN 112161207 A CN112161207 A CN 112161207A CN 202011006798 A CN202011006798 A CN 202011006798A CN 112161207 A CN112161207 A CN 112161207A
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- Prior art keywords
- light
- light splitting
- section
- splitting part
- splitting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
- F21L4/00—Electric lighting devices with self-contained electric batteries or cells
- F21L4/005—Electric lighting devices with self-contained electric batteries or cells the device being a pocket lamp
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D42/00—Hand, pocket, or shaving mirrors
- A45D42/08—Shaving mirrors
- A45D42/10—Shaving mirrors illuminated
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- 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
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
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- 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
- F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
- F21V33/0004—Personal or domestic articles
- F21V33/004—Sanitary equipment, e.g. mirrors, showers, toilet seats or paper dispensers
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- 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
- F21V7/00—Reflectors for light sources
- F21V7/04—Optical design
- F21V7/05—Optical design plane
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- 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
- F21V7/00—Reflectors for light sources
- F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
- F21V7/24—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by the material
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- 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
- F21V2200/00—Use of light guides, e.g. fibre optic devices, in lighting devices or systems
- F21V2200/10—Use of light guides, e.g. fibre optic devices, in lighting devices or systems of light guides of the optical fibres type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Public Health (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention discloses a light guide piece and a cosmetic mirror. The light guide piece comprises a light inlet section, a light splitting structure and a light outlet section; the end part of one side of the light inlet section is arranged opposite to the light source; the light splitting structure is arranged on one side of the light inlet section, which is far away from the light source; the light splitting structure comprises a first light splitting part and a second light splitting part, one end of the first light splitting part and one end of the second light splitting part are connected to the light incident section in a gathering mode, and the other end of the first light splitting part and the other end of the second light splitting part extend towards directions far away from the light incident section and deviating from each other; one end of the light outlet section is connected with one end of the first light splitting part far away from the light inlet section, and the other end of the light outlet section is connected with one end of the second light splitting part far away from the light inlet section; the first light splitting part, the light emitting section and the second light splitting part are enclosed to form a closed loop structure. According to the technical scheme, the annular light guide part is luminous by using the single light source, and dazzling light is eliminated.
Description
Technical Field
The invention relates to the technical field of light guide, in particular to a light guide piece and a makeup mirror.
Background
In the optical design of consumer electronics products, in order to take account of thinness, the product thickness can be thinner, often can produce the problem that LED mixed light distance is not enough because the structural space is limited, and under the condition of satisfying optical quality, the use quantity of a large number of LED lamps needs to be increased to satisfy the uniform transmission of light, but the cost can be increased by the mode. In the related art, in order to solve the problems of insufficient light mixing distance and high cost, one or two LED lamps are usually directly incident from the end of the light bar, but this method is prone to generate glare.
Disclosure of Invention
The invention mainly aims to provide a light guide member, which aims to reduce the input of the number of light sources, realize the effect of annular light emission and eliminate the problem of glare in an optical product.
In order to achieve the above object, the light guide provided by the present invention includes a light incident section, a light splitting structure and a light exit section; the end part of one side of the light inlet section is opposite to the light source; the light splitting structure is arranged on one side of the light incoming section, which is far away from the light source; the light splitting structure comprises a first light splitting part and a second light splitting part, one end of the first light splitting part and one end of the second light splitting part are connected to the light incident section in a gathering mode, and the other end of the first light splitting part and the other end of the second light splitting part extend towards directions which are far away from the light incident section and are deviated from each other; one end of the light outgoing section is connected with one end, far away from the light incoming section, of the first light splitting section, and the other end of the light outgoing section is connected with one end, far away from the light incoming section, of the second light splitting section; the first light splitting part, the light emitting section and the second light splitting part are enclosed to form a closed loop structure.
In an embodiment of the present invention, a surface of the first dichroic portion facing the second dichroic portion is a first dichroic surface, a surface of the second dichroic portion facing the first dichroic portion is a second dichroic surface, and the first dichroic surface and the second dichroic surface are disposed at an included angle; the first light splitting surface is a light reflecting surface, and the second light splitting surface is a light reflecting surface.
In an embodiment of the present invention, a reflective material is disposed on the first light splitting surface; and a reflective material is arranged on the second light splitting surface.
In an embodiment of the present invention, an included angle between the first light splitting surface and the second light splitting surface is 90 °.
In an embodiment of the present invention, the light splitting structure further includes a third light splitting part connected to an end of the light incident section away from the light source, where the third light splitting part is connected between the first light splitting part and the second light splitting part; wherein the thickness of the third light splitting part is smaller than that of the light incident section.
In an embodiment of the invention, in a height direction of the light incident section, the third light splitting part is located at a lower side portion of the light incident section.
In an embodiment of the invention, an upper surface of the third light splitting part is a third light splitting surface, and the third light splitting surface is a planar structure.
In an embodiment of the invention, a thickness of the third light splitting part is defined as H1, and a thickness of the light incident section is defined as H2, so that H1/H2 is 0.2.
In an embodiment of the invention, the light exiting section includes light entering surfaces located at two ends, and a light exiting surface and a bottom surface respectively disposed on the upper surface and the lower surface, the two light entering surfaces are respectively connected to the first light splitting portion and the second light splitting portion, and the bottom surface is provided with a plurality of tooth-like structures.
In an embodiment of the invention, the tooth depths of the plurality of tooth-shaped structures increase with increasing distance from the light incident surface.
In order to achieve the above object, the present invention further provides a cosmetic mirror, comprising a housing, a light guide, a light source and an upper cover; the light guide piece is arranged in the shell; the light source is arranged in the shell and is opposite to the light inlet section of the light guide piece; the upper cover is arranged on the shell in a covering manner; the upper cover comprises a mirror surface part and a light transmission part, the light transmission part surrounds the periphery of the mirror surface part, and the light transmission part is arranged corresponding to the light guide part; the light guide piece comprises a light inlet section, a light splitting structure and a light outlet section; the end part of one side of the light inlet section is opposite to the light source; the light splitting structure is arranged on one side of the light incoming section, which is far away from the light source; the light splitting structure comprises a first light splitting part and a second light splitting part, one end of the first light splitting part and one end of the second light splitting part are connected to the light incident section in a gathering mode, and the other end of the first light splitting part and the other end of the second light splitting part extend towards directions which are far away from the light incident section and are deviated from each other; one end of the light outgoing section is connected with one end, far away from the light incoming section, of the first light splitting section, and the other end of the light outgoing section is connected with one end, far away from the light incoming section, of the second light splitting section; wherein the first light splitting part, the light outlet section and the second light splitting part are enclosed to form a closed loop structure.
In an embodiment of the present invention, a light blocking coating area is disposed at a position of the light transmitting portion corresponding to the light splitting structure, and a light transmitting character is disposed in the light blocking coating area of the light transmitting portion.
In an embodiment of the invention, the inner wall of the mirror surface portion is provided with a silver plating layer.
In an embodiment of the present invention, the cosmetic mirror further includes: the reflector plate is arranged on one side of the light guide part, which is far away from the upper cover;
an electrochromic film disposed on an outer surface of the upper cover.
One side of a light inlet section in the light guide piece is arranged opposite to the light source, the other side of the light inlet section is connected with a light splitting structure, the light splitting structure comprises a first light splitting part and a second light splitting part, one end of the first light splitting part and one end of the second light splitting part are connected to the light inlet section in a gathering mode, the other end of the first light splitting part and the other end of the second light splitting part extend towards directions which are far away from the light inlet section and deviate from each other, light rays emitted into the light inlet section by the light source can be smoothly transmitted to the light splitting structure and are split at the first light splitting part and the second light splitting part, and therefore the light at the light splitting structure can be weakened; simultaneously, this first beam split portion and second beam split part are connected respectively in the light-emitting section to form closed loop construction, make the light in first beam split portion and the second beam split portion can conduct and mix in the light-emitting section, thereby utilize single light source to realize that the annular is luminous, and eliminated and dazzled light.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a light guide according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a schematic structural diagram of a light guide according to another embodiment of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3 at B;
FIG. 5 is a schematic view of a light source and a light guide in an embodiment of the present invention;
FIG. 6 is a schematic structural view of a cosmetic mirror according to an embodiment of the present invention;
FIG. 7 is a partially exploded view of an embodiment of the cosmetic mirror of the present invention;
fig. 8 is an external view of a cosmetic mirror according to an embodiment of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 1 | |
11 | |
| 12 | Light splitting structure | 121 | A first |
| 1211 | First |
122 | Second |
| 1221 | Second |
123 | Third |
| 13 | Light-emitting |
133 | Tooth- |
| 2 | |
3 | |
| 4 | |
41 | |
| 42 | |
421 | Light-blocking |
| 422 | Light-transmitting |
5 | Reflector plate |
| 6 | Electrochromic film |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is 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 addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a light guide member 1, which is applied to an electronic product.
In the embodiment of the present invention, as shown in fig. 1, fig. 2, fig. 3 and fig. 5, the light guide 1 includes a light incident section 11, a light splitting structure 12 and a light exiting section 13. The end part of one side of the light incoming section 11 is arranged opposite to the light source 3; the light splitting structure 12 is arranged on one side of the light incoming section 11 far away from the light source 3; the light splitting structure 12 includes a first light splitting part 121 and a second light splitting part 122, one end of the first light splitting part 121 and one end of the second light splitting part 122 are connected to the light incident section 11 in a gathering manner, and the other end of the first light splitting part 121 and the other end of the second light splitting part 122 extend in a direction away from the light incident section 11 and away from each other; one end of the light emitting section 13 is connected to one end of the first light splitting part 121 far away from the light entering section 11, and the other end of the light emitting section 13 is connected to one end of the second light splitting part 122 far away from the light entering section 11; the first light splitting part 121, the light emitting section 13 and the second light splitting part 122 are enclosed to form a closed loop structure, so that the light rays in the first light splitting part 121 and the second light splitting part 122 are emitted into the light emitting section 13 to be mixed.
The end part of one side of the light inlet section 11 of the light guide member 1 is arranged opposite to the light source 3, the light splitting structure 12 is arranged on one side of the light inlet section 11 far away from the light source 3, so that the light emitted from the light source 3 can enter from the end of one side of the light-entering section 11, and the light is guided to the light-splitting structure 12 through the reflection and refraction in the light-entering section 11, the light splitting structure 12 includes a first light splitting part 121 and a second light splitting part 122, one end of the first light splitting part 121 and one end of the second light splitting part 122 are connected to the light incident section 11 in a gathering manner, the other end of the first light splitting part 121 and the other end of the second light splitting part 122 extend in a dispersing manner in a direction away from the light incident section 11 and away from each other, so that the light transmitted to the light splitting structure 12 is transmitted along the first light splitting part 121 and the second light splitting part 122 respectively, to achieve the effect of splitting the light rays in the light-entering section 11, thereby weakening the brightness of the light rays entering from the light-entering section 11. First beam split portion 121 is kept away from the one end of income light section 11 and is connected light section 13, the one end that second beam split portion 122 was kept away from income light section 11 simultaneously connects light section 13, make first beam split portion 121, light section 13 and second beam split portion 122 enclose and close and form closed loop structure, thereby make the light homoenergetic in first beam split portion 121 and the second beam split portion 122 conduct and mix and send out in the light section 13, beam split structure 12 has weakened the produced dazzling light problem of light source 3 incidence simultaneously, and then reached single light source 3 and realized the even luminous effect of annular.
It can be understood that the light-entering section 11 plays a role of guiding the light of the light source 3 into the light-guiding member 1, and in order to reduce the loss of the light energy, the outer surface of the light-entering section 11 can be used as a high light surface to enhance the light coupling and enhance the total reflection, so as to prevent the light from being emitted from the outer peripheral wall in the light-entering section 11, and the light entering the light-entering section 11 is maximally guided to the light-splitting structure 12. On the basis, the light intensity of the end of the light incident section 11 connected to the light splitting structure 12 is brighter than that of other parts, and the light is split into the first light splitting part 121 and the second light splitting part 122, so as to weaken the light intensity at this position. Optionally, the light entrance section 11 may be a circular light guide strip structure, and in the practical application process, a reflective material may be wrapped on the outer surface of the light entrance section 11, so as to further reduce the loss of light energy.
One end of the first light splitting part 121 and one end of the second light splitting part 122 are connected to the optical section 11 in a gathering manner, the other end of the first light splitting part 121 and the other end of the second light splitting part 122 extend in a dispersing manner in a direction away from the optical section 11 and away from each other, optionally, the first light splitting part 121 and the second light splitting part 122 can be symmetrically arranged, when the first light splitting part 121 and the second light splitting part 122 are symmetrically arranged, the shape and structure of the first light splitting part 121 are consistent with the shape and structure of the second light splitting part 122, so that the quantity, intensity and direction of light entering the first light splitting part 121 and the quantity, intensity and direction of light entering the second light splitting part 122 are consistent, the brightness of the first light splitting part 121 and the brightness of the second light splitting part 122 are uniform, and the light in the. Of course, the first light splitting part 121 and the second light splitting part 122 may also be asymmetrically disposed, and when the two parts are asymmetrically disposed, the shape and structure of the two parts may be determined according to actual situations, for example, an effect of gradually changing light or an effect of alternating light and dark may be presented.
In the practical application process, in order to ensure the overall uniformity of the light guide member 1 and the convenience of molding, the light guide member 1 may be an integrally molded structure, and optionally, the light guide member 1 may be made of PMMA (Polymethyl methacrylate) material.
In the technical scheme of the invention, one end of a light incident section 11 in a light guide member 1 is arranged opposite to a light source 3, the other end of the light incident section 11 is connected with a light splitting structure 12, the light splitting structure 12 comprises a first light splitting part 121 and a second light splitting part 122, one end of the first light splitting part 121 and one end of the second light splitting part 122 are connected to the light incident section 11 in a gathering manner, and the other end of the first light splitting part 121 and the other end of the second light splitting part 122 extend in a dispersing manner in a direction away from the light incident section 11 and away from each other, so that light emitted into the light incident section 11 by the light source 3 can be smoothly transmitted to the light splitting structure 12 and split at the first light splitting part 121 and the second light splitting part 122 to weaken the brightness; meanwhile, the first light splitting part 121 and the second light splitting part 122 are respectively connected to the light emitting section 13, and a closed loop structure is formed, so that light rays in the first light splitting part 121 and the second light splitting part 122 can be transmitted to the light emitting section 13 to be mixed, and therefore annular light emission is achieved by using a single light source 3, and the effect of glare is eliminated.
In order to further reduce the brightness of the end of the light-entering section 11, referring to fig. 2 and 4, in an embodiment of the present invention, a surface of the first dichroic portion 121 facing the second dichroic portion 122 is a first dichroic surface 1211, a surface of the second dichroic portion 122 facing the first dichroic portion 121 is a second dichroic surface 1221, and the first dichroic surface 1211 and the second dichroic surface 1221 are disposed at an angle; the first light splitting surface 1211 is a light reflecting surface, and the second light splitting surface 1221 is a light reflecting surface.
The first light-dividing surface 1211 is disposed at an angle with respect to the second light-dividing surface 1221, and it is understood that the opening of the angle formed by the first light-dividing surface 1211 and the second light-dividing surface 1221 is disposed away from the light-entering section 11, so that the light emitted from the light incident section 11 can be guided into the first light splitting part 121 through the first light splitting surface 1211, is guided into the second dichroic portion 122 through the second dichroic surface 1221, and both the first dichroic surface 1211 and the second dichroic surface 1221 are light reflecting surfaces, so that the light rays entering the light section 11 are almost totally shunted into the first light splitting part 121 and the second light splitting part 122, and the total reflection action occurs at the first light splitting surface 1211 and the second light splitting surface 1221, so that the light is prevented from being refracted from the first light splitting surface 1211 and the second light splitting surface 1221, the light in the area between the first light splitting surface 1211 and the second light splitting surface 1221 is weakened while the light energy loss is reduced, and the effect of further eliminating the glare is achieved.
Optionally, a reflective material is disposed on the first light splitting surface 1211; the second light splitting surface 1221 is provided with a reflective material to further ensure the light reflection effect of the first light splitting surface 1211 and the second light splitting surface 1221, so as to improve the light energy utilization rate.
Alternatively, the angle between the first light dividing surface 1211 and the second light dividing surface 1221 may be determined according to actual situations, and may be set to 45 °, 60 °, 75 °, 90 °, or the like. In an embodiment of the present invention, considering that most of the light emitted from the light incident section 11 is emitted along the axial direction of the light incident section 11, in order to ensure the total reflection of the light, an included angle between the first light splitting surface 1211 and the second light splitting surface 1221 is 90 °, at this time, the first light splitting surface 1211 and the second light splitting surface 1221 are symmetrically arranged, that is, the extending directions of the first light splitting surface 1211 and the second light splitting surface 1221 and the light incident section 11 are 45 °, so that the light emitted from the light incident section 11 can be totally reflected to the light emitting section 13 by the first light splitting surface 1211 and the second light splitting surface 1221, the light utilization rate is further improved, and meanwhile, because the two light splitting surfaces are symmetrically arranged, the number and the brightness of the light entering the first light splitting portion 121 and the second light splitting portion 122 are consistent, so that the brightness of the light is more uniform.
Further, referring to fig. 2 and 4, in order to make the light brightness at the light splitting structure 12 more uniform, the light splitting structure 12 further includes a third light splitting part 123 connected to an end of the light entering section 11 away from the light source 3, and the third light splitting part 123 is connected between the first light splitting part 121 and the second light splitting part 122; the thickness of the third light splitting part 123 is smaller than that of the light incident section 11.
The third light splitting part 123 is connected to the light incident section 11, the first light splitting part 121, and the second light splitting part 122, so that light emitted from the light incident section 11 can be split to the first light splitting part 121 and the second light splitting part 122, and a part of the light enters the third light splitting part 123, and the thickness of the third light splitting part 123 is smaller than that of the light incident section 11, so that the light brightness at the third light splitting part 123 is lower than that of the light incident section 11, but still has a certain brightness to avoid the situation that the brightness of an area between the first light splitting part 121 and the second light splitting part 122 is too dark, thereby achieving the effect of uniform light brightness at the light splitting structure 12.
In practical applications, the specific position of the third dichroic portion 123 is not particularly required, and may be disposed at an upper portion of the light incident section 11, or may be disposed at a middle portion of the light incident section 11, or may be disposed at a lower portion of the light incident section 11. In an embodiment of the present invention, in consideration of the ease of the molding process and the regularity of the light transmission, optionally, the third light splitting part 123 is located at a lower side of the light incident section 11 in the height direction of the light incident section 11 to attenuate the light and emit a certain amount of light.
Optionally, the upper surface of the third light splitting part 123 is a third light splitting surface (not shown), and the third light splitting surface is a planar structure, so that the light inside the second light splitting part 123 is emitted from the third light splitting surface more uniformly.
Further, in order to improve the uniformity of the light brightness, the thickness of the third light splitting part 123 is defined as H1, and the thickness of the light incident section 11 is defined as H2, so that H1/H2 is 0.2, so as to ensure a certain brightness while realizing the brightness reduction. In the actual manufacturing process, the end of the light-entering section 11 may be notched to form the light-splitting structure 12.
In an embodiment of the invention, referring to fig. 1 and fig. 2, the light exiting section 13 includes light entering surfaces (not shown) at two ends, and a light exiting surface and a bottom surface respectively disposed on the upper and lower surfaces, the two light entering surfaces are respectively connected to the first light splitting part 121 and the second light splitting part 122, and the bottom surface is provided with a plurality of tooth-like structures 133. The light rays in the first light splitting part 121 and the second light splitting part 122 enter the light emergent section 13 from the two light incident surfaces respectively, and the bottom surface of the light emergent section 13 is provided with a plurality of tooth-shaped structures 133 to destroy the total reflection effect of the bottom surface, so as to play a role of scattering the light rays, and make the light rays emitted from the light emergent surface more uniform.
Optionally, the specific shape and distribution of the plurality of tooth-like structures 133 need to be determined according to the actual light transmission condition, and in the light emitting end 13, along the light propagation direction, when the distance from the light source 3 is farther, the light will gradually weaken in the transmission process, and then the plurality of tooth-like structures 133 may be distributed from sparse to dense. Optionally, in order to further improve the transmission strength of the light, in the light exit end 13, the tooth depths of the plurality of tooth structures 133 increase with increasing distance from the light entrance surface to ensure the light exit uniformity of the whole light exit section 13, where the tooth depths are perpendicular distances from the protruding vertices of the tooth structures 133 relative to the bottom surface of the light exit section 13.
The present invention also provides a cosmetic mirror, referring to fig. 6, 7 and 8, the cosmetic mirror including: the specific structure of the light guide member 1 refers to the above embodiments, and since the cosmetic mirror adopts all the technical solutions of all the above embodiments, the cosmetic mirror at least has all the beneficial effects brought by the technical solutions of the above embodiments, and is not repeated herein. Wherein, the light guide member 1 is arranged in the shell 2; the light source 3 is arranged in the shell 2 and is opposite to the light inlet section 11 of the light guide member 1; the upper cover 4 is covered on the shell 2; the upper cover 4 includes a mirror surface portion 41 and a light transmitting portion 42, the light transmitting portion 42 is provided around the periphery of the mirror surface portion 41, and the light transmitting portion 42 is provided corresponding to the light guide 1.
The upper cover 4 covers the housing 2 to enclose a space for accommodating the light guide member 1 and the light source 3, thereby protecting the light source 3 and the light guide member 1. The upper cover comprises a mirror surface part 41 and a light transmission part 42, wherein the light transmission part 42 is arranged corresponding to the light guide part 1, so that light rays emitted by the light guide part 1 can be transmitted out through the light transmission part 42, and the lighting function of the cosmetic mirror is realized. The mirror surface portion 41 is provided in an area surrounded by the transparent portion 42, the mirror surface portion 41 is used for a user to look into a mirror, and optionally, the inner wall surface of the mirror surface portion 41 may be coated with a silver plating layer while preventing light from being transmitted from the mirror surface portion 41.
Alternatively, referring to fig. 6, 7 and 8, the mirror portion 41 is made of a material with low light transmittance and high reflectivity. The light-transmitting portion 42 is made of a material having a high light transmittance and a low reflectance. Certainly, in order to ensure the texture of the appearance of the cosmetic mirror, the upper cover 4 is an integrated structure, so that the external light surface presents a complete plane effect, and on the basis, the high reflectivity of the mirror surface part 41 and the high light transmittance of the light transmission part 42 can be realized by performing relevant coating operation on the inner wall of the upper cover 4.
Optionally, referring to fig. 6, 7 and 8, the cosmetic mirror further includes a reflective sheet 5, and the reflective sheet 5 is disposed on a side of the light guide 1 away from the upper cover 4. The reflective sheet 5 plays a role of reflecting light so that the light emitted from the light guide member 1 can be reflected to the upper cover 4 by the reflective sheet 5 to improve the light energy utilization rate.
Further, referring to fig. 6, 7 and 8, in order to eliminate the glare problem of the cosmetic mirror, a light blocking paint region 421 is disposed at a position of the light transmitting portion 42 corresponding to the light splitting structure 12, and light transmitting characters 422 are disposed in the light blocking paint region 421 of the light transmitting portion 42. In the embodiment of the light guide member 1, it can be understood that the light emitted from the light source 3 to the light incident section 11 is transmitted to the light splitting structure 12, which may cause the brightness of the light splitting structure 12 to be higher than the brightness of other portions, so that the light blocking coating area 421 may be disposed at the position of the light transmitting portion 42 corresponding to the light splitting structure 12 to block the brightness of the light splitting structure 12, and meanwhile, in order to prevent the whole light of the cosmetic mirror from being non-uniform, the light transmitting characters 422 are disposed in the light blocking coating area 421, so that part of the light can be transmitted from the light transmitting characters 422, thereby eliminating glare, ensuring the function of emitting light from the light splitting structure 12, and further improving the annular illumination uniformity of the cosmetic mirror.
Optionally, the light-transmitting character 422 can be an identifier of a brand of a cosmetic mirror, or a theme symbol of the cosmetic mirror, so as to improve the appearance of the cosmetic mirror and achieve a cool effect.
Further, referring to fig. 7, in order to improve the aesthetic sense of use of the cosmetic mirror, an electrochromic film 6 is provided on the outer surface of the upper cover 4. The electrochromic film 6 is electrically connected with a power supply inside the beauty mirror, and the transmittance of the electrochromic film 6 can be realized by controlling the current. Optionally, the electrochromic film 6 is a liquid crystal film, after the liquid crystal film is powered on, the turning distribution of liquid crystal molecules is controlled by the magnitude of current, so as to control the overall light transmittance, when the make-up mirror is not used, the liquid crystal film is in a full black state, and when the make-up mirror is required to be used, the magnitude of current can be controlled to realize illumination and mirror surface effects. Optionally, this liquid crystal film can with inside speech control module of beauty make-up mirror or components and parts communication connection such as photoelectric sensor to realize that user's accessible speech recognition (like magic mirror or open mirror etc.) or facial recognition function direct control liquid crystal film's luminousness, thereby reached the magic mirror and awakened up the function, more intelligent effect when the user uses.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (12)
1. A light guide, comprising:
the end part of one side of the light inlet section is arranged opposite to the light source;
the light splitting structure is arranged on one side of the light incoming section, which is far away from the light source; the light splitting structure comprises a first light splitting part and a second light splitting part, one end of the first light splitting part and one end of the second light splitting part are connected to the light incident section in a gathering mode, and the other end of the first light splitting part and the other end of the second light splitting part extend towards directions which are far away from the light incident section and are deviated from each other; and
one end of the light outgoing section is connected with one end, far away from the light incoming section, of the first light splitting part, and the other end of the light outgoing section is connected with one end, far away from the light incoming section, of the second light splitting part;
wherein the first light splitting part, the light outlet section and the second light splitting part are enclosed to form a closed loop structure.
2. A light guide member according to claim 1, wherein a surface of the first dichroic portion facing the second dichroic portion is a first dichroic surface, a surface of the second dichroic portion facing the first dichroic portion is a second dichroic surface, and the first dichroic surface and the second dichroic surface are arranged at an angle; the first light splitting surface is a light reflecting surface, and the second light splitting surface is a light reflecting surface.
3. A light guide as claimed in claim 2, wherein the first light-dividing surface is provided with a reflective material; and a reflective material is arranged on the second light splitting surface.
4. A light guide as claimed in claim 2, wherein the angle between the first facet and the second facet is 90 °.
5. A light guide as claimed in any one of claims 1 to 4, wherein the light splitting structure further comprises:
the third light splitting part is connected with one end, far away from the light source, of the light inlet section and is connected between the first light splitting part and the second light splitting part;
wherein the thickness of the third light splitting part is smaller than that of the light incident section.
6. The light guide member according to claim 5, wherein the third light splitting part is located at a lower side portion of the light entrance section in a height direction of the light entrance section; and/or
The upper surface of the third light splitting part is a third light splitting surface, and the third light splitting surface is of a plane structure; and/or
The thickness of the third light splitting part is defined as H1, the thickness of the light incoming section is defined as H2, and then H1/H2 is 0.2.
7. A light guide as claimed in claim 1, wherein the light exit section comprises:
the light incident surfaces are respectively connected with the first light splitting part and the second light splitting part, and the bottom surface is provided with a plurality of tooth-shaped structures.
8. The light guide of claim 7, wherein the tooth depths of the plurality of tooth-like structures increase with increasing distance from the light incident surface.
9. A cosmetic mirror, comprising:
a housing;
the light guide of any of claims 1 to 8, disposed within the housing;
the light source is arranged in the shell and is opposite to the light inlet section of the light guide part;
the upper cover is arranged on the shell in a covering mode and comprises a mirror surface portion and a light transmission portion, the light transmission portion is arranged on the periphery of the mirror surface portion in a surrounding mode, and the light transmission portion corresponds to the light guide piece.
10. The cosmetic mirror according to claim 9, wherein the light-transmitting portion is provided with a light-blocking paint region corresponding to the light-splitting structure, and the light-transmitting portion is provided with light-transmitting characters in the light-blocking paint region.
11. The cosmetic mirror according to claim 9, wherein the inner wall of the mirror surface portion is provided with a silver plated layer.
12. The cosmetic mirror of claim 9, further comprising:
the reflector plate is arranged on one side of the light guide part, which is far away from the upper cover; and/or
An electrochromic film disposed on an outer surface of the upper cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011006798.2A CN112161207A (en) | 2020-09-22 | 2020-09-22 | Light guide and cosmetic mirror |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011006798.2A CN112161207A (en) | 2020-09-22 | 2020-09-22 | Light guide and cosmetic mirror |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112161207A true CN112161207A (en) | 2021-01-01 |
Family
ID=73863401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011006798.2A Pending CN112161207A (en) | 2020-09-22 | 2020-09-22 | Light guide and cosmetic mirror |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112161207A (en) |
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| CN204786019U (en) * | 2015-07-21 | 2015-11-18 | 湖南福安工业有限公司 | Modified car light light ring structure |
| CN207635081U (en) * | 2017-10-10 | 2018-07-20 | 欧普照明股份有限公司 | A kind of minute surface lamps and lanterns |
| CN209573690U (en) * | 2019-01-31 | 2019-11-05 | 信利光电股份有限公司 | A kind of vanity mirror |
| CN209725991U (en) * | 2019-06-21 | 2019-12-03 | Tcl通力电子（惠州）有限公司 | Light fixture, loudspeaker and speaker |
| CN110715258A (en) * | 2018-07-13 | 2020-01-21 | 丰田合成株式会社 | Light guide |
| CN210809699U (en) * | 2019-09-23 | 2020-06-23 | 渲美美健（深圳）科技股份有限公司 | Hand-held mirror |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204786019U (en) * | 2015-07-21 | 2015-11-18 | 湖南福安工业有限公司 | Modified car light light ring structure |
| CN207635081U (en) * | 2017-10-10 | 2018-07-20 | 欧普照明股份有限公司 | A kind of minute surface lamps and lanterns |
| CN110715258A (en) * | 2018-07-13 | 2020-01-21 | 丰田合成株式会社 | Light guide |
| CN209573690U (en) * | 2019-01-31 | 2019-11-05 | 信利光电股份有限公司 | A kind of vanity mirror |
| CN209725991U (en) * | 2019-06-21 | 2019-12-03 | Tcl通力电子（惠州）有限公司 | Light fixture, loudspeaker and speaker |
| CN210809699U (en) * | 2019-09-23 | 2020-06-23 | 渲美美健（深圳）科技股份有限公司 | Hand-held mirror |
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