CN113028360A - Low-cost car lamp and car that can optimize uniformity of lighting a lamp - Google Patents

Low-cost car lamp and car that can optimize uniformity of lighting a lamp Download PDF

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Publication number
CN113028360A
CN113028360A CN201911358053.XA CN201911358053A CN113028360A CN 113028360 A CN113028360 A CN 113028360A CN 201911358053 A CN201911358053 A CN 201911358053A CN 113028360 A CN113028360 A CN 113028360A
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CN
China
Prior art keywords
light
lamp
reflector
cost
low
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911358053.XA
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Chinese (zh)
Inventor
张亭
游学兵
黄甜
于晓
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HASCO Vision Technology Co Ltd
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HASCO Vision Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HASCO Vision Technology Co Ltd filed Critical HASCO Vision Technology Co Ltd
Priority to CN201911358053.XA priority Critical patent/CN113028360A/en
Publication of CN113028360A publication Critical patent/CN113028360A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—Light emitting diodes [LED]
    • 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
    • F21S43/30—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors
    • F21S43/31—Optical layout thereof
    • 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
    • F21S43/50—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by aesthetic components not otherwise provided for, e.g. decorative trim, partition walls or covers
    • 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
    • F21W2103/00—Exterior vehicle lighting devices for signalling purposes
    • 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
    • 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)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

The invention discloses a low-cost car lamp and a car with optimized lighting uniformity, which comprise a lighting circuit board, a reflector and a decorative ring, wherein a lighting source is arranged on the lighting circuit board, a decorative part or an assembly part which is required to be arranged for decoration or assembly is arranged on the opposite side of the reflector relative to the inner cavity of a car lamp body, part or all of the inner side surface of the decorative part or the assembly part forms a shielding part which plays a role in shielding light directly or indirectly from the lighting source, and the shielding part is positioned at the lower end of eyebrow of the decorative ring; the end face of the inner side of the shielding part is provided with an optical pattern so as to keep the light rays emitted by the light-emitting source directly or indirectly emitted to the optical pattern, then the light rays are effectively reflected to the reflector and then emitted to the eyebrow position of the decorative ring through the reflection of the reflector.

Description

Low-cost car lamp and car that can optimize uniformity of lighting a lamp
Technical Field
The invention relates to the technical field of automobile lamps, in particular to a low-cost automobile lamp capable of optimizing lighting uniformity and an automobile.
Background
With the rapid development of the automobile industry and the advancement of human civilization, people have made higher and higher requirements on the aspects of the attractive appearance and the economical efficiency of automobiles. The automobile lamp is an important component of an automobile, and the requirement of the automobile lamp is certainly no exception, so that the requirement of attractive appearance is met, the requirement of light distribution regulations is met, the lighting effect is uniform, and the cost is also required to be low. How to maximize the energy utilization efficiency and improve the lighting uniformity of a low-cost lamp is a subject of considerable research.
The low-cost lamp in the prior art usually adopts a reflection type, the lamp body is used as a reflection surface to become a big characteristic of the low-cost lamp, and the whole lamp usually only uses one circuit board to realize the functions of 2-3 signal lamps, thereby greatly saving the cost. As shown in fig. 1, the cross-sectional structure of the existing low-cost lamp is schematic, that is, three signal lamp functions are realized by using a lamp body as a reflecting surface and a circuit board.
However, such a solution has a great limitation because, due to the fixation of the LED circuit board, the LED is far from the reflecting surface for the upper function, and the energy emitted is little due to the shielding of the shape and the structure. As can be seen from FIG. 1, the light rays which can irradiate the eyebrow area of the upper decorative ring are only LED light rays within 6 degrees in the figure, the single-side outgoing angle of the LED is 60 degrees, the overall outgoing angle is 120 degrees, that is, only about 5% of the light rays can be used for lightening the eyebrow area of the decorative ring. It can also be seen from fig. 1 that there is a 29 degree range of LED light that is blocked, i.e., approximately 25% of the light energy is wasted.
Disclosure of Invention
The invention aims to overcome the defects of the existing low-cost vehicle lamp and provide a low-cost vehicle lamp structure which can increase the effective utilization of light and optimize the lighting uniformity.
The technical problem to be solved can be implemented by the following technical scheme.
A low-cost car light that can optimize the uniformity of lighting a lamp, including shiny breadboard, reflector and decorative ring, there are shiny light sources on the said shiny breadboard, its characteristic is, relative to the lamp body cavity of the said car light, there are decorations or fittings set up in order to decorate or assemble in the opposite side of the said reflector, some or all inside surfaces of the said decorations or fittings form and come from the light-emitting light source directly or indirectly and shelter from the shielding part of the function, the said shielding part locates at the lower end of the decorative ring eyebrow of the said decorative ring; the end face of the inner side of the shielding part is provided with an optical pattern so as to keep the light rays emitted by the light-emitting source directly or indirectly emitted to the optical pattern, then the light rays are effectively reflected to the reflector and then emitted to the eyebrow position of the decorative ring through the reflection of the reflector.
As a further improvement of the technical scheme, the shielding part is a concave part which is concave into the inner cavity of the lamp body of the vehicle lamp for decoration.
As one of the preferred embodiments of the present invention, the light emitting source is an LED lamp.
As a further improvement of the technical scheme, the optical patterns are a combination of one, two or more optical patterns.
As a further improvement of the present technical solution, the optical pattern is an arch-shaped pattern.
As a further improvement of the present technical solution, the optical pattern is a sawtooth pattern.
As a further improvement of the technical scheme, the optical pattern is a fish-eye pattern.
Also as a preferred embodiment of the present invention, the shielding portion is a part of the bezel.
Also as one of the preferred embodiments of the present invention, the shielding portion is a part of the mirror part.
Another object of the present invention is to provide an automobile using the above-mentioned low-cost lamp which can optimize the lighting uniformity.
Adopt above-mentioned technical scheme's low-cost car light and car have following beneficial effect:
through the structural improvement of the part in front of the reflecting surface of the low-cost lamp, the problem of energy waste can be solved on the premise of not increasing the cost, the utilization rate of energy is improved to the maximum extent, and the lighting uniformity is optimized.
Drawings
FIG. 1 is a schematic diagram of a structure and a light-emitting line of a low-cost lamp in the prior art;
FIG. 2 is a schematic diagram of a low-cost vehicular lamp structure and a light-emitting line for optimizing lighting uniformity according to the present invention;
FIG. 3 is a crowning pattern design;
fig. 4 is a zigzag pattern design.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
The invention is based on the structural design of a low-cost vehicle lamp, and the vehicle lamp structure shown in figure 2 is an improvement aiming at the defects of the existing design, and particularly provides an optimization scheme which can optimize uniformity and improve energy utilization rate by adding a design structure to a part in front of a reflector and locally aluminizing the structure.
Referring to fig. 2, the specific structure is as follows:
the light-emitting circuit board is provided with an LED light-emitting source 5, and in light rays emitted by the LED light-emitting source 5, the light rays 1 directly irradiate optical patterns 7 arranged on the inner side surface of the concave part 9, are effectively reflected by the optical patterns to the reflector 6 and are reflected to the decorative ring eyebrow 8 for emergence. The light 2 is reflected by the reflector 6 and reaches the optical pattern 7, then reflected by the optical pattern and reaches the reflector 6 for the second time, and then reflected by the reflector to the decorative ring eyebrow 8 for emergence. The light between the light 3 and the dotted line 4 does not need to reach the optical pattern 7, and is directly reflected by the reflector 6 and then emitted from the eyebrow part of the decorative ring.
The recessed portion 9 is a part of a garnish for a vehicle lamp decoration, and is structurally recessed into an inner cavity of a lamp body of the vehicle lamp. The upper part of the concave part 9 is a decorative ring eyebrow 8 (a part of the decorative ring); the reflector, the decorative ring and the decorative part surround the inner cavity of the lamp body of the car lamp.
According to the scheme, the front part of the reflecting surface is structurally designed, so that the shielded energy is utilized for secondary reflection and then is reused skillfully. As shown in the propagation path of the light ray 1 in fig. 2, 25% of the wasted energy of the light ray can be reflected by the designed structure (i.e. the optical pattern 7) to be reflected to the reflecting surface of the reflector again, and then the energy can be emitted from the upper eyebrow through the reflector. Meanwhile, the light rays radiated from the LED within the range of 30 degrees from the central angle can be reflected to the reflecting surface of the reflector again through the secondary reflection of the design structure, and the energy can be emitted from the upper eyebrow by utilizing the tertiary reflection of the reflecting surface again, as shown in the transmission path of the light rays 2 in fig. 2. By means of the designed structure, the energy of secondary reflection and the energy of tertiary reflection can be effectively utilized, the utilization rate of the energy is improved, and meanwhile, the lighting uniformity at the eyebrow position is optimized.
By adding the aluminized design structure to the part in front of the reflecting surface, the lighting uniformity is optimized while the energy utilization rate is improved. The pattern patterns of different forms can be carried out on the added design structure, so that the design of different modeling structures for light requirements is met.
Fig. 3 shows a crowning pattern design, which can realize effective utilization of light by designing parameters such as base surface, crowning height and pattern width of the pattern.
Fig. 4 is a design of a sawtooth pattern, and effective utilization of light can be realized by designing parameters such as a base plane of the pattern, a sawtooth height, a sawtooth width, a sawtooth inclination angle and the like.
The optical patterns can also adopt a fish eye pattern mode, can be set by dividing the arch height of the patterns, can turn the fish eye, and can realize effective utilization of light by the design of parameters such as the arch height of the turn-over and the turn-over height.
Of course, the choice of the optical pattern 7 is not limited to the three patterns mentioned above, and the design structure may also be a combination of two or more patterns, further selecting different patterns for different shapes to achieve maximum energy utilization. Meanwhile, the design of increasing dermatoglyph can be carried out on the decorative pattern of the design structure, and the purpose of further optimizing the lighting uniformity can be achieved.
In addition, the concave part 9 can be a part of a decorative ring, or the concave part can be a part in front of the reflector or a part of the part; that is, the optical pattern 7 is not limited to being provided on a decorative member such as a bezel, but may be provided on an assembly (e.g., a mirror part) on the opposite side of the mirror 6.
The present invention is not limited to the above embodiments, and the essence of the present invention is to further improve the shielding portion of the front end of the reflector for shielding the light from the light source, and to solve the disadvantage of the ineffective reflection, the shielding portion may be formed on the decoration or the assembly. Further, the performance of the vehicle lamp is improved and improved by adding optical patterns on the inner side surface of the shielding part and designing the patterns.
The shielding portion is not necessarily limited to a structure recessed into the inner cavity of the lamp body. The concave part can be made of two materials of the decoration ring which belongs to the same part with the decoration ring eyebrow, for example, the decoration ring eyebrow is transparent, and the decoration ring is a non-transparent part and decoration except the transparent part.
Because the decorative modeling shields the light, under the condition, the pattern design can be made on the back of the shielding (also a part in front of the reflector), and the optical design with some patterns can be made on other parts in front of the reflector, so that the light can be reflected and utilized again. But not limited to the design that the concave part is a decorative ring or the concave part is a reflector.
For a low-cost lamp, the structural design provided by the invention can greatly improve the utilization rate of energy without increasing the cost, thereby achieving the purpose of optimizing the lighting uniformity.

Claims (10)

1. A low-cost car light that can optimize the uniformity of lighting a lamp, including circuit board of sending out light, reflector and decorative ring, there are light sources of sending out on the circuit board of sending out light, characterized by, relative to the lamp body cavity of the said car light, there are decorations or fittings set up out of decoration or assembly needs on the opposite side of the said reflector, some or all inside surfaces of the said decorations or fittings form and come from the light source directly or indirectly and shelter from the shielding part that the light of the light source plays a role, the said shielding part locates at the lower end of the decorative ring eyebrow of the said decorative ring; the end face of the inner side of the shielding part is provided with an optical pattern so as to keep the light rays emitted by the light-emitting source directly or indirectly emitted to the optical pattern, then the light rays are effectively reflected to the reflector and then emitted to the eyebrow position of the decorative ring through the reflection of the reflector.
2. The vehicular lamp of claim 1, wherein the shielding portion is a recessed portion recessed into an inner cavity of the lamp body of the vehicular lamp for decoration.
3. The vehicular lamp of claim 1, wherein the light source is an LED lamp.
4. The vehicular lamp of claim 1, wherein the optical pattern is a combination of one, two or more optical patterns.
5. The low-cost vehicular lamp capable of optimizing lighting uniformity of claim 4, wherein said optical pattern is a crowned pattern.
6. The vehicular lamp of claim 4, wherein the optical pattern is a sawtooth pattern.
7. The low-cost vehicular lamp capable of optimizing lighting uniformity of claim 4, wherein said optical pattern is a fish-eye pattern.
8. The low-cost vehicular lamp capable of optimizing lighting uniformity according to claim 1, wherein the shielding portion is a part of a bezel.
9. The vehicular lamp of claim 1, wherein the shielding portion is a part of a reflector component.
10. An automobile having a low-cost lamp according to any one of claims 1 to 9 which can optimize lighting uniformity.
CN201911358053.XA 2019-12-25 2019-12-25 Low-cost car lamp and car that can optimize uniformity of lighting a lamp Pending CN113028360A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911358053.XA CN113028360A (en) 2019-12-25 2019-12-25 Low-cost car lamp and car that can optimize uniformity of lighting a lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911358053.XA CN113028360A (en) 2019-12-25 2019-12-25 Low-cost car lamp and car that can optimize uniformity of lighting a lamp

Publications (1)

Publication Number Publication Date
CN113028360A true CN113028360A (en) 2021-06-25

Family

ID=76458305

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911358053.XA Pending CN113028360A (en) 2019-12-25 2019-12-25 Low-cost car lamp and car that can optimize uniformity of lighting a lamp

Country Status (1)

Country Link
CN (1) CN113028360A (en)

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