CN111288406B - Airborne lamp secondary optical structure based on total reflection and directional refraction system - Google Patents
Airborne lamp secondary optical structure based on total reflection and directional refraction system Download PDFInfo
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- CN111288406B CN111288406B CN201811496907.6A CN201811496907A CN111288406B CN 111288406 B CN111288406 B CN 111288406B CN 201811496907 A CN201811496907 A CN 201811496907A CN 111288406 B CN111288406 B CN 111288406B
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- Prior art keywords
- total reflection
- lamp
- optical lens
- prism
- reflection optical
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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
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
- F21S41/141—Light emitting diodes [LED]
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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
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
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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
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
- F21V13/02—Combinations of only two kinds of elements
- F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
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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
- F21V19/003—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
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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
- F21V5/00—Refractors for light sources
- F21V5/02—Refractors for light sources of prismatic shape
-
- 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
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
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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)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention discloses a secondary optical structure of an airborne lamp based on a total reflection and directional refraction system, which comprises a lamp shell, wherein the lamp shell is provided with a light source; a lamp shade; a refractive prism disposed at a left portion of the lamp housing; a specular reflection plate disposed inside the housing-built-in space and below the refractive prism; a total reflection optical lens disposed at a right portion of the lamp housing, the total reflection optical lens being disposed obliquely leftward; and an LED light source printed board. The invention has the beneficial effects that: the LED onboard lamp lighting system with the specific angle and the specific range is realized, the light path design of LED lighting is realized by utilizing the light distribution characteristic of the optical element assembly, the reliability of the light path design is improved, the light path design structure is simple, the design space is saved, and the light emitting efficiency of the lamp can be effectively improved.
Description
Technical Field
The invention relates to the field of airborne lamps, in particular to a secondary optical structure of an airborne lamp based on a total reflection and directional refraction system.
Background
The development of Light Emitting Diode (LED) technology opens up a new era of lighting technology revolution, and compared with the traditional lighting source, LED light sources have the advantages of small size, long service life, low power consumption, environmental protection, short starting time, firm structure, light emitter approaching point light sources and the like. So that the LED secondary light distribution lighting technology is rapidly developed in recent years.
Because the light-emitting angle distribution of most LED light sources is 180 DEG Langmuir distribution, if no reasonable secondary light distribution is carried out, the light type illuminating on the ground is a circular light spot with a larger area, about 50% of light is scattered outside the illumination range and is not effectively utilized, and a certain degree of glare can be generated for human eyes.
Disclosure of Invention
The invention provides a novel airborne lamp secondary optical structure based on a total reflection and directional refraction system, which overcomes the defect that LED light is not fully utilized in the prior art.
In order to achieve the purpose, the technical scheme of the invention is as follows: an airborne lamp secondary optical structure based on a total reflection and directional refraction system comprises,
A lamp housing having an upward opening;
the lamp shade covers the upward opening, and the lamp shade and the lamp shell jointly define a shell built-in space;
The refraction prism is arranged at the left part of the lamp shade, the bottom surface of the refraction prism is an incident surface, and the top surface of the refraction prism is an emergent surface;
a specular reflection plate disposed inside the housing-built-in space and below the refractive prism, a top surface of the specular reflection plate being a specular surface, the top surface of the specular reflection plate facing a bottom surface of the refractive prism;
a total reflection optical lens disposed at a right portion of the lamp housing, the total reflection optical lens being disposed obliquely leftward, a bottom surface of the total reflection optical lens being an incident surface, a top surface of the total reflection optical lens being an exit surface, wherein the top surface of the total reflection optical lens has a portion facing a bottom surface of the refractive prism and a portion not facing the bottom surface of the refractive prism; and
The LED light source printed board is arranged in the built-in space of the shell and below the total reflection optical lens, the LED light source printed board is obliquely arranged right, and the top surface of the LED light source printed board is provided with LEDs, wherein the top surface of the LED light source printed board faces the bottom surface of the total reflection optical lens.
As a preferable scheme of the secondary optical structure of the airborne lamp based on the total reflection and directional refraction system, the total reflection optical lens is a TIR optical lens, and the inner curved surface is a rotationally symmetrical curved surface.
As a preferable scheme of the secondary optical structure of the airborne lamp based on the total reflection and directional refraction system, the top surface of the refraction prism is a plane, and the bottom surface of the refraction prism is a prism surface.
As a preferred scheme of the secondary optical structure of the airborne lamp based on the total reflection and directional refraction system, the LED light source LED lamp further comprises a right-angle triangle mounting seat, the LED light source printed board is arranged on the inclined surface of the right-angle triangle mounting seat, and radiating fins are arranged on the two right-angle surfaces of the right-angle triangle mounting seat.
Compared with the prior art, the invention has the beneficial effects that: by utilizing the secondary light distribution characteristic of the optical element, the light path design of single compact LED illumination is realized, the reliability of the light path design is improved, the light path design structure is simple, and the design space is saved.
In addition to the technical problems, features constituting the technical solutions and advantageous effects caused by the technical features of the technical solutions described above, other technical problems that the present invention can solve, other technical features included in the technical solutions and advantageous effects caused by the technical features will be described in further detail with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic view (front view) of an embodiment of the present invention.
Fig. 2 is a schematic view of an embodiment of the present invention (back side).
Fig. 3 is a schematic view (horizontal plane) of the effect of an embodiment of the present invention.
Fig. 4 is a schematic view (vertical plane) showing the effect of an embodiment of the present invention.
FIG. 5 is a schematic diagram of an embodiment of the present invention.
Fig. 6 shows a total reflection optical lens and refractive prism distribution 1 of an integrated lamp housing according to an embodiment of the present invention.
Fig. 7 shows a total reflection optical lens and refractive prism distribution 2 of an integrated lamp housing according to an embodiment of the present invention.
FIG. 8 is a cross-sectional view of an optical path design in an embodiment of the present invention.
Detailed Description
The invention will be described in further detail below with reference to the drawings by means of specific embodiments. The description of these embodiments is provided to assist understanding of the present invention, but is not to be construed as limiting the present invention. In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
Referring to fig. 1 to 8, there is shown a secondary optical structure of an onboard lamp based on a total reflection and directional refraction system. The secondary optical structure mainly comprises a lamp shell 1, a lamp lampshade 2, a refractive prism 3, a mirror reflector 4, a total reflection optical lens 5, an LED light source printed board 6, a control printed board 7, an electric connector 8 and other parts.
The luminaire housing 1 has an upward opening.
The lamp shade 2 covers the upward opening. The lamp shade 2 and the lamp housing 1 together define a housing interior space.
The refractive prism 3 is placed at the left part of the lamp housing 2. The top surface of the refraction prism 3 is a plane. The bottom surface of the refraction prism 3 is a prismatic surface.
The bottom surface of the refraction prism 3 is an incident surface. The top surface of the refraction prism 3 is an emergent surface.
The specular reflection board 4 is disposed inside the housing-built-in space and below the refractive prism 3. The top surface of the mirror reflector 4 is a mirror surface. The top surface of the specular reflection board 4 faces the bottom surface of the refractive prism 3.
The total reflection optical lens 5 is disposed at the right part of the lamp housing 2. The total reflection optical lens 5 is a TIR optical lens, and its inner curved surface is a rotationally symmetrical curved surface. The total reflection optical lens 5 is disposed obliquely leftward. The bottom surface of the total reflection optical lens 5 is an incident surface. The top surface of the total reflection optical lens 5 is an outgoing surface. Wherein the top surface of the total reflection optical lens 5 has a portion facing the bottom surface of the refractive prism 3 and a portion not facing the bottom surface of the refractive prism 3.
The LED light source printed board 6 is disposed inside the housing-built-in space below the total reflection optical lens 5. The LED light source printed board 6 is obliquely arranged right. The top surface of the LED light source printed board 6 is provided with LEDs. Wherein the top surface of the LED light source printed board 6 faces the bottom surface of the total reflection optical lens 5.
The LED light source printed board 6 is arranged on the inclined plane of the right triangle mounting seat. Radiating fins are arranged on two right-angle faces of the right-angle triangle mounting seat.
The visible light LED of the LED light source printed board 6 emits visible light, and the visible light beam of the LED is shaped through the total reflection optical lens 5 of the lamp shade 2. The incidence angle of the beam center shaped by the total reflection optical lens 5 is 42 degrees, which is shown in fig. 8, the incidence angle reaches the total reflection critical angle of the acrylic material lampshade, the beam scattering angle shaped by the total reflection optical lens 5 is 40 degrees, the incidence angle of the sector beam on the total reflection optical lens 5 is smaller than 42 degrees (shown by the broken line in fig. 8), and the sector beam is irradiated to the target direction after being refracted by the acrylic material lampshade; the incidence angle of the light beam of the lower sector of the total reflection optical lens 5 is larger than 42 degrees (shown by a blue dotted line in fig. 8), and most of the light beam of the lower sector is totally reflected back into the lampshade, so that the light efficiency is reduced. In order to solve this problem, the light beam totally reflected by the lower sector back into the lamp housing is secondarily shaped by the mirror reflector 4 and the refractive prism 3 to which the lamp housing 2 belongs, the light emitting direction is changed, the incident angle of the part of the light beam is returned to the range smaller than the critical angle of total reflection by 42 ° again, and the light emitting direction of the light beam is controlled within the target irradiation range, and fig. 8 is a cut-away view of the light path design. Fig. 6 and 7 show the distribution of the refractive prisms 3 and the total reflection optical lenses 5 of the integrated lamp cover, and the distribution of the different total reflection optical lenses 5 is not limited to the number of total reflection optical lenses 5, and the arrangement form of the total reflection optical lenses 5 can reasonably distribute the arrangement and the number of the total reflection optical lenses 5 according to the light type requirement. Fig. 5 shows that, based on the above-mentioned light path design, the application structure of the light path can realize different light path layout structures according to the final illumination requirement, and the light paths can be freely distributed, and the above-mentioned several structures do not represent the final actual layout structure.
The foregoing has outlined rather broadly the more detailed description of the invention in order that the detailed description thereof that follows may be better understood, and in order that the present invention may be better understood. 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. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (2)
1. The secondary optical structure of the airborne lamp based on the total reflection and directional refraction system is characterized by comprising,
A lamp housing having an upward opening;
the lamp shade covers the upward opening, and the lamp shade and the lamp shell jointly define a shell built-in space;
The refraction prism is arranged at the left part of the lamp shade, the bottom surface of the refraction prism is an incident surface, and the top surface of the refraction prism is an emergent surface;
a specular reflection plate disposed inside the housing-built-in space and below the refractive prism, a top surface of the specular reflection plate being a specular surface, the top surface of the specular reflection plate facing a bottom surface of the refractive prism;
a total reflection optical lens disposed at a right portion of the lamp housing, the total reflection optical lens being disposed obliquely leftward, a bottom surface of the total reflection optical lens being an incident surface, a top surface of the total reflection optical lens being an exit surface, wherein the top surface of the total reflection optical lens has a portion facing a bottom surface of the refractive prism and a portion not facing the bottom surface of the refractive prism; and
An LED light source printed board disposed inside the housing-built-in space and below the total reflection optical lens, the LED light source printed board being disposed obliquely rightward, a top surface of the LED light source printed board having an LED, wherein the top surface of the LED light source printed board faces a bottom surface of the total reflection optical lens;
The total reflection optical lens is a TIR optical lens, and the inner curved surface of the total reflection optical lens is a rotationally symmetrical curved surface;
the top surface of the refraction prism is a plane, and the bottom surface of the refraction prism is a prism surface.
2. The secondary optical structure of the airborne lamp based on the total reflection and directional refraction system according to claim 1, further comprising a right triangle mounting seat, wherein the LED light source printed board is arranged on the inclined plane of the right triangle mounting seat, and radiating fins are arranged on two right angle surfaces of the right triangle mounting seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811496907.6A CN111288406B (en) | 2018-12-07 | 2018-12-07 | Airborne lamp secondary optical structure based on total reflection and directional refraction system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811496907.6A CN111288406B (en) | 2018-12-07 | 2018-12-07 | Airborne lamp secondary optical structure based on total reflection and directional refraction system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111288406A CN111288406A (en) | 2020-06-16 |
| CN111288406B true CN111288406B (en) | 2024-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811496907.6A Active CN111288406B (en) | 2018-12-07 | 2018-12-07 | Airborne lamp secondary optical structure based on total reflection and directional refraction system |
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| CN (1) | CN111288406B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000171748A (en) * | 1998-12-09 | 2000-06-23 | Canon Inc | Illuminator and photographing device using it |
| CN102080805A (en) * | 2009-12-01 | 2011-06-01 | 深圳市斯派克光电科技有限公司 | LED array street lamp lens module and manufacturing method thereof |
| CN205480481U (en) * | 2016-01-26 | 2016-08-17 | 佛山市顺德区兰晶照明电器有限公司 | Wall washing lamp without glare |
| CN106764791A (en) * | 2016-11-30 | 2017-05-31 | 马瑞利汽车零部件(芜湖)有限公司 | Total reflection prism system group |
| CN208058564U (en) * | 2018-03-07 | 2018-11-06 | 高光学 | A kind of secondary optical lens and its Projecting Lamp module of Projecting Lamp |
-
2018
- 2018-12-07 CN CN201811496907.6A patent/CN111288406B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000171748A (en) * | 1998-12-09 | 2000-06-23 | Canon Inc | Illuminator and photographing device using it |
| CN102080805A (en) * | 2009-12-01 | 2011-06-01 | 深圳市斯派克光电科技有限公司 | LED array street lamp lens module and manufacturing method thereof |
| CN205480481U (en) * | 2016-01-26 | 2016-08-17 | 佛山市顺德区兰晶照明电器有限公司 | Wall washing lamp without glare |
| CN106764791A (en) * | 2016-11-30 | 2017-05-31 | 马瑞利汽车零部件(芜湖)有限公司 | Total reflection prism system group |
| CN208058564U (en) * | 2018-03-07 | 2018-11-06 | 高光学 | A kind of secondary optical lens and its Projecting Lamp module of Projecting Lamp |
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| Publication number | Publication date |
|---|---|
| CN111288406A (en) | 2020-06-16 |
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