CN111561666B - LED light distribution emergent structure and luminous spike with same - Google Patents
LED light distribution emergent structure and luminous spike with same Download PDFInfo
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/20—Light sources comprising attachment means
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/50—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users
- E01F9/553—Low discrete bodies, e.g. marking blocks, studs or flexible vehicle-striking members
- E01F9/559—Low discrete bodies, e.g. marking blocks, studs or flexible vehicle-striking members illuminated
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
- F21K9/68—Details of reflectors forming part of the light source
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
- F21K9/69—Details of refractors forming part of the light source
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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
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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
- 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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Abstract
The LED light distribution emergent structure comprises a transparent shell (1), an LED luminous body (2), a separation body (3) and an air layer (4), wherein the LED luminous body (2) is packaged in the transparent shell (1) through the separation body (3), a specific optical structure is formed through LED luminous matching, optical path transmission and optical structure parameter mutual matching and combining a forming structure, so that a main light beam generates upward displacement (delta H) of a target value required by design, an emergent point of the main light beam in the normal direction falls on a position of the middle height of an emergent surface (1 a) to form a luminous center and emergent along the horizontal direction, the aim of optimizing spatial light fields with the emergent light horizontal direction as a main light emergent direction, the upward direction emergent light as an auxiliary light and the total emergent light emergent efficiency is high is fulfilled, physical indexes such as structural strength, waterproof function and the like are achieved, the forming process of the shell is facilitated, and the light intensity ratio in the horizontal and the upward direction can be more reasonably distributed.
Description
Technical Field
The invention relates to the field of luminous equipment, in particular to an LED light distribution emergent structure and a luminous spike with the same.
Technical Field
The luminous equipment with the luminous induction or auxiliary lighting function comprises a buried lamp, a luminous spike, a solar ground lamp, a contour sign and the like, and takes a motor vehicle driver or a pedestrian as a main service object. Compared with the common light-emitting equipment, the light-emitting equipment mainly applied to public places has the advantages that not only is the light-emitting performance considered, but also the structural strength requirements such as compression resistance, impact resistance and the like and the waterproof requirements are met, and safety specifications are met, so that the comprehensive performance requirements on the light-emitting equipment are more severe. Represented by the most widely used luminescent spikes.
The luminous spike is also called a luminous raised road sign, is mainly arranged on a road surface, has a luminous function, mainly plays a role in visual induction or prompting of motor vehicle drivers and pedestrians, and can also serve as a road surface auxiliary lighting fixture.
Most of the existing luminous spikes are mainly convex luminous spikes, and are mainly arranged on the road surface, and the highest position of the spikes cannot be higher than the road surface by 25mm; the underground luminous spike is characterized in that the main body of the underground luminous spike is embedded into the road surface when the underground luminous spike is used, the top of the underground luminous spike is flush with the road surface or slightly protrudes out of the road surface, the top of the underground luminous spike is not more than 10mm, preferably less than 8mm, the lower the protruding road surface part is, the better the lower the protruding road surface part is, otherwise, the bump of a vehicle is too large, and the potential safety hazard exists. The luminous spike must reach enough structural strength, such as wheel rolling resistance and compression resistance of more than 10 tons, or the luminous spike is easy to damage.
The main light-emitting structures of the existing spikes are mainly categorized into two main categories:
The luminous structure of the luminous spike adopts the perforation and horizontal shooting at the side part of the spike protection shell, the perforated lamp beads directly penetrate and emit horizontal light approximately in the original direction, the luminous intensity of the light emitted in the horizontal direction is larger, the remote light emission is good, and the luminous spike is beneficial to driving, but because the luminous intensity distribution of the LED is close to a lambertian body of 180 degrees, the radial luminous light emitted by the LED is blocked by the shell of the perforation part, the luminous energy utilization rate is low, the luminous area is reduced, the luminous effect on pedestrians in the short range is poor, and both people and vehicles cannot be well achieved. Most of the raised spikes are of such a structure, and the buried spikes are not suitable for the perforated flat light exit structure due to the limitation of the height of the raised spikes.
In order to ensure the visible distance and the long-distance luminous effect of the convex spike, and simultaneously ensure the compression resistance and impact resistance of the spike, a certain top shell thickness is required and the spike protrudes out of the road surface to be higher, so that the spike can bump due to the impact of wheels, the bump of pedestrians or non-motor vehicle drivers is easy to cause, the traffic accident is induced, snow shoveling is not prevented, the process is complex, and water is easy to enter.
The light-emitting structure of another type of light-emitting spike adopts an inverted V-shaped LED light distribution emergent structure, namely the top of a light-emitting groove of the light-emitting spike is inverted V-shaped, and straw hat lamp beads are vertically upwards or obliquely upwards arranged in the light-emitting groove, and emitted light emits upwards and laterally through refraction, reflection and transmission. Most buried spikes employ such structures. It has mainly the following main drawbacks:
1. The light intensity distribution of the lamp beads is unreasonable vertically upwards or obliquely upwards, a great part of light can be emitted upwards through the top position of the light emitting groove, the light intensity of the emitted light in the upwards direction is relatively large, the light energy utilization rate in the horizontal direction is low, the visible distance of remote light emission is short, the identification degree is low, and short-range light emission easily causes light interference and glare to pedestrians and non-motor vehicle drivers in a certain angle, so that traffic accidents are easy to induce. As the revised road illumination specification prescribes, the illuminance condition on the high-grade road and the urban arterial road is improved to be between 20 and 30 Lux. In addition, the development of the lighting technology improves the brightness of the car lamp, so that the existing luminous spike has the limitations of low luminous brightness and poor identification degree in the horizontal direction, and the new road development status cannot be met.
2. The wall thickness of the top part of the inverted V-shaped light-emitting groove is thinner, the structural strength is smaller, the compression resistance and the impact resistance are not enough, and the shell is easy to damage;
3. The inverted V-shaped light emitting groove is not beneficial to an injection molding process, is large in stress and easy to crack, and in order to achieve a good remote light emitting effect, the installation angle and the positioning requirement of the straw hat lamp bead are required to be adjusted, inconvenience is brought to assembly, and the consistency of products is poor.
In summary, the existing light-emitting devices represented by the light-emitting spike have the main defects of unreasonable light distribution and emergent structure of the LED, unreasonable light field distribution of the light-emitting and light-guiding part of the spike, unfavorable reasonable distribution of light intensity ratio, low horizontal light energy utilization rate, poor remote light-emitting effect, easy light interference caused by short-range light emission, incapability of achieving both people and vehicles, unfavorable flattening and intensive integration of the devices, poor structural strength, non-compression and impact resistance, complicated manufacture and installation and the like, and the defects of incapacity of meeting new development requirements become the urgent need in the industry.
Disclosure of Invention
The technical problem to be solved by the invention is to provide an LED light distribution outgoing structure and a light emitting spike with the structure, wherein the outgoing point of the main light beam in the normal direction falls on the position of the middle height of the outgoing surface (1 a) to form a luminescence center and is outgoing in the horizontal direction, so as to achieve the purposes of optimizing and distributing a space light field with the outgoing light mainly in the horizontal direction and the outgoing light mainly in the upward direction and with high total outgoing efficiency of the outgoing light, and achieve physical indexes such as structural strength, waterproof function and the like by mutually matching and combining the parameters of the optical structure with a forming structure, the light emergent structure has high emergent light ratio in the lateral direction (horizontal direction), longer long-distance visual distance, less glare to people in short distance, more optimal emergent light field distribution, higher overall light energy utilization rate, can meet the use of places with higher ambient illuminance, particularly has high discrimination under the condition of 30LUX illuminance, can improve design margin to ensure more optimal structure (the raised height of the transparent shell is reduced and the outer part is provided with an inclined plane so as to reduce jolt of vehicles and collision of personnel and the shell is not easy to wear, the thickness of the surface layer of the transparent shell is also increased so as to increase the structural strength), has strong compressive shock resistance, high structural strength and is beneficial to the forming process of the shell, is particularly suitable for luminous equipment represented by luminous spikes, can more reasonably distribute the luminous intensity ratio in the horizontal direction and the upward direction so as to be more suitable for the side emphasis of different demands of the vehicles and the pedestrians, can well realize the consideration of both the vehicles and the pedestrians, better meets the new requirements of traffic development.
The invention creatively provides an LED light distribution outgoing structure which is more suitable for the luminous spike and a luminous spike with more excellent performance which is manufactured based on the advantages of the light outgoing structure and the design allowance which can be provided by the light outgoing structure by means of optical theory calculation, software simulation design and experimental verification from the aspects of optics, LED device characteristics, structural mechanics, molding process (especially injection molding), traffic design specification, road illumination specification and the like, and the main core creative aspects of the invention are as follows:
1. The luminous characteristics of the LED device are utilized, luminous matching, optical design of an optical path and optical structure parameters are mutually matched and combined with a specific physical structure, an LED light distribution emergent structure is innovatively designed, particularly, the optical parameters such as an incident surface, an emergent surface, angles, heights, widths, sidewall thicknesses between the incident surface and the emergent surface are matched with the physical structure, the aim of optimal distribution of an emergent light space light field (strong) is achieved through specific parameter matching, the expected aim of the required design is achieved, process forming and production implementation are facilitated, light emitted by an LED light emitter is focused through a condensing lens to achieve the light intensity ratio of the LED in the horizontal direction, and then the LED light is deflected or emitted horizontally after upward displacement delta H is generated through secondary refraction of an inner wall and an outer wall (theta 1 is more than theta 2, and theta 3 is more than 0) after the main emergent light of the LED is deflected through refraction of a transparent shell and is emitted horizontally; when θ1=θ2 and θ3=0, the main emergent light of the LED is refracted by the transparent shell and then is displaced upward by Δh and is emitted along the horizontal direction, so that the design margin (Δh) of the spike structure can be improved, the shell structure of the spike can be more compact, i.e. the height of the exposed road surface during spike installation can be reduced, the bumping feeling of the vehicle and the collision to pedestrians and non-motor vehicle drivers can be reduced, and the structural strength and the anti-compression shock performance of the spike can be further increased by increasing the thickness of the top shell in the size limiting range meeting traffic regulations on the premise of ensuring the visible distance of the spike.
2. According to the refraction theorem that n1sinα1=n2sinα2, the light refractive index n of the transparent material of the transparent shell, the first inclination angle (theta 1) of the light incident surface (1 b), the second inclination angle (theta 2) of the light emergent surface (1 a), the elevation angle (theta 3) of the main light beam in the normal direction after the LED light emitter (2) is condensed by the condensing lens, the thickness (H1) from the highest point of the top of the accommodating groove (1 c) to the top surface of the transparent shell (1), the height (H2) of the light emergent surface (1 a), the height (H3) of the light incident surface (1 b) and the average width (W) between the light incident surface (1 b) and the light emergent surface (1 a) meet the condition that most light energy of the LED light emitter is emitted along the horizontal direction (under the illumination condition of 20LUX to 30 LUX), when the LED luminous body emits light, a person can still see luminous spots with larger areas, smaller length-diameter ratio or approximately 1, plump and larger area in the LED light distribution emergent structure, wherein the diameter of the luminous spots is larger than or equal to the diameter of the lamp beads and smaller than or equal to H2, so that the recognition degree is very high, and the conventional light emergent structure which does not meet the light emergent condition of the invention can only see defective luminous spots with smaller area), so that the light emergent efficiency of the spike in the horizontal direction is high (namely, the luminous energy emitted by the spike is mainly concentrated in the horizontal direction), the visible distance of the light emission is increased as much as possible, and the light induction and indication are beneficial to providing for a motor vehicle driver; the light energy utilization rate of the two light sources is higher and the pertinence is stronger by distributing the proportion of horizontal emission and upward emission through the condensing lens.
3. The top of the light emitting groove is arched (the cross section is similar to an inverted U shape), so that the injection molding process of the transparent shell is facilitated, the structural strength of the LED light distribution emergent structure of the luminous spike is higher, the compression resistance and impact resistance are stronger, the installation of the LED luminous body is simpler, and the consistency of products is better.
The luminous spike of the invention further optimizes the structure and provides design allowance for design.
The technical scheme of the invention is as follows: as shown in fig. 1-4, the LED light distribution and emission structure comprises a transparent shell (1), an LED illuminant (2) with a condensing lens (such as a condensing lens, a condensing reflecting cup, a reflecting cylinder, etc.), a separator (3) and an air layer (4).
The transparent shell (1) is a transparent shell with a local height difference, a certain thickness is arranged at the top, the main body of the top is in a plane or is close to the plane, a containing cavity which is opened downwards is arranged, the containing groove (1 c) with an inward sink is arranged on the inner bottom surface (inner wall) of the top of the transparent shell (1) and serves as a light emitting groove, the inner wall of the containing groove (1 c) is at least provided with a certain height (H3) (corresponding to a certain inclined plane width) for light incidence, the height is greater than or equal to the radial dimension of an LED luminous body) and an inclined angle I (theta 1), the inclined angle in the text is the whole inclined degree in a broad concept comprising a plane or a non-plane (cambered surface, a free curved surface and the like), for example, the inclined angle of the cambered surface is the inclined angle of the plane which is the upper and lower or the left and right of the lower edge or the inclined plane which is the cambered surface which is the plane of the cambered surface, the inclined angle of the rest of the same type with the light entering surface (1 b) (also called surface), the outer surface of the shell corresponding to the light entering surface (1 b) is provided with a certain inclined plane width (H3) (corresponding to the certain inclined plane width), the height is greater than or equal to the radial dimension of the LED luminous body (2) and the average inclined plane (2) is equal to the average inclined plane (2) between the light emitting surface (2) and the light emitting surface (2) which is equal to the radial width (2) and the average inclined plane (2) which is equal to the average height (2) and the height (2) between the light emitting surface and the light emitting surface (W) and the light, to achieve the desired value of beam upward deflection;
The LED luminous body (2) is arranged in the accommodating groove (1 c), the main beam in the normal direction after being condensed by the condensing lens is in an elevation angle (theta 3), and the main beam is incident on the light incident surface (1 b) at a certain incidence angle; a separator (3) (preferably a separator layer, which can be provided with packaging glue) is arranged around the LED luminous body (2), and an air layer (4) is formed at least between the LED luminous body (2) and the light incident surface (1 b) and serves as a light emitting groove; the LED luminous body (2) is packaged in the transparent shell (1) through the separator (3) to form a specific optical structure with mutually matched LED luminous parameters, optical path transmission and optical structure parameters and combined with a forming structure to complete light distribution design;
The optical structure is that light emitted by the LED luminous body (2) is mainly subjected to light condensation through the condensing lens in sequence, and a main light beam in the normal direction (namely a luminous axis) is subjected to first refraction incidence from a light incident surface (1 b) of a first inclination angle (theta 1) on the transparent shell (1) in the horizontal direction or in a small angle elevation angle (theta 3) with the horizontal direction, and is subjected to second refraction emergence from a light emergent surface (1 a) of a second inclination angle (theta 2) on the transparent shell (1) after being transmitted through the side wall of the transparent shell (1) with a certain width W; the light distribution structure of the LED is characterized in that the light distribution structure is formed by upward displacement (delta H) reaching a target value required by the design of the main light beam, the emergent point of the main light beam in the normal direction falls on the position of the middle height of the emergent surface (1 a) to form a luminous center (light spot center) and is emergent along the horizontal direction, so that the emergent light is mainly emergent in the horizontal direction (the emergent light intensity ratio in the horizontal direction), the emergent light in the upward (LED radial direction) is auxiliary (the upward (upward-inclined luminescence can be theoretically decomposed into horizontal emergent light and upward emergent light), the total emergent efficiency of the emergent light is high, and the required physical indexes such as structural strength (compression resistance and impact resistance), structural height difference limitation (a convex height gauge Fan Xianzhi), waterproof function and the like are achieved.
Further, from the structural point of view, the light incident surface (1 b) is an inclined plane light incident surface (1 ba) or an arc surface or a spherical surface or a free curved surface light incident surface (1 bb), the light emergent surface (1 a) is an arc surface or a spherical surface or a free curved surface light emergent surface (1 ab), the two formed arc surfaces (similar to an arch structure) can enable the structural strength to be better or the accommodating space to be larger, the shell compression resistance or the internal structure to be more compact, the wheel rolling resistance and the impact resistance to be more resistant, the influence of long-term abrasion on the light emergent structure to be small, and the durability of the product to be higher.
Further, from the perspective of lateral (horizontal) luminous effect, the light incident surface (1 b) is an inclined plane light incident surface (1 ba) or an arc surface or a spherical surface or a free curved surface light incident surface (1 bb), the light emergent surface (1 a) is an arc surface or a spherical surface or a free curved surface light emergent surface (1 ab), the curvature of the light incident surface (1 b) is smaller than that of the light emergent surface (1 a), the light incident surface and the light incident surface form a shape with a light condensing function, so that the light incident surface and the light incident surface can form a shape with a light condensing function, such as an inner flat convex lens and the like, and can have a further light condensing function, so that the light emergent efficiency in the horizontal direction is further improved or the luminous viewing distance is increased.
Preferably, when the LED luminous body (2) emits light, a main light beam in the normal direction and the light emitting surface (1 a) intersect to form a light emitting center near the center point of the light emitting surface (1 a) and emit light in the horizontal direction, and the LED luminous body (2) emits light in the horizontal direction to form a complete light emitting spot with the diameter larger than or equal to the diameter (phi) of a condensing lens of the LED luminous body (2) and smaller than or equal to the height (H2) of the light emitting surface (1 a) and the length-diameter ratio close to 1 and with a larger area on the light emitting surface (1 a). Otherwise, the light spot is deflected upwards or downwards when observed in the horizontal direction, the light emergent efficiency in the horizontal direction is low, and the defect of the light spot is caused when observed in the horizontal direction.
Preferably, the inclination angle (θ1) of the light incident surface (1 b), the inclination angle (θ2) of the light emergent surface (1 a), the elevation angle (θ3) of the main beam of the LED light emitter (2) in the normal direction after being condensed by the condensing lens, and the horizontal width (W) of the side wall at the middle position of the light emergent surface (1 a) enable the main beam of the LED light emitter (2) to generate upward displacement (Δh), the diameter (Φ) of the condensing lens of the LED light emitter (2), the height (H2) of the light emergent surface (1 a), and the distance (H4) between the LED light emitter (2) and the top wall of the accommodating groove (110 c) thereof are as follows: H1+H2+PHI/2-PHI/2 is greater than or equal to ΔH is greater than or equal to H2+H2+PHI/2-H2+PHI/2, i.e., H1+H2 is greater than or equal to ΔH is greater than or equal to H2+H2+PHI-H2, preferably ΔH is greater than or equal to H2+H2+PHI/2-H2/2, or H2-PHI/2 is greater than or equal to ΔH is greater than or equal to PHI/2; on the premise of controlling the structural height difference, namely the height (H2) of the light emergent surface, the light emergent rate in the horizontal direction can be ensured to be high so as to increase the viewing distance, and strong light spots with larger area (more complete) can be formed so as to improve the recognition degree.
Preferably, the transparent material of the transparent shell (1) is PC material with refractive index n equal to 1.6.
Preferably, when the inclination angle of the light incident surface (1 b) of the transparent shell (1) [ the inclination angle of the light incident surface (1 b) is an inclined plane, namely an included angle with a reference surface (also called a reference surface, which is a horizontal plane or a reference surface parallel to the horizontal plane and can be parallel to the top surface or the bottom surface of a spike and a pavement) ] is an acute angle θ1, and the inclination angle of the light emergent surface (1 a) is an acute angle θ2, which meets the following conditions: the angle theta (=θ1- θ2) between the light incident surface (1 b) and the light emergent surface (1 a) is equal to or greater than 85 DEG and equal to or greater than θ1 and equal to or greater than 18 DEG and 30 DEG is equal to or greater than θ1- θ2 and equal to or greater than 0 DEG (namely, the side wall of the light emitting part is of a structure with equal thickness up and down or narrow top and wide bottom), and the angle theta (=θ1- θ2) between the light incident surface (1 b) and the light emergent surface (1 a) is as follows: the angle theta is more than or equal to 30 degrees and more than or equal to 0 degrees, preferably 75 degrees is more than or equal to 1 and more than or equal to 30 degrees, and 60 degrees is more than or equal to 2 and more than or equal to 30 degrees; through calculation of refraction theorem n1sin alpha 1=n2sin alpha 2, optical simulation design and experimental verification, the parameter conditions are better, and the light intensity ratio of emergent light in the horizontal direction is ensured;
The elevation angle (theta 3) of the main light beam in the normal direction after the LED luminous body (2) is condensed by the condensing lens is more than or equal to 30 degrees and more than or equal to 0 degrees, the half value angle theta 1/2 of the light intensity after the LED luminous body (2) is condensed by the condensing lens is more than or equal to 30 degrees and more than or equal to 1/2 degrees, and the light intensity ratio of emergent light in the horizontal direction is ensured.
Preferably, an elevation angle (theta 3) of a main light beam in a normal direction after the LED luminous body (2) is condensed by the condensing lens and a half value angle theta 1/2 of the light intensity of the LED luminous body (2) after the LED luminous body passes through the condensing lens satisfy the following conditions: and theta 1/2 is more than or equal to theta 3 is more than or equal to 0 degrees.
Preferably, the horizontal width W1 of the side wall at the most point of the light emitting surface (1 a), the horizontal width W2 of the side wall at the most point of the light emitting surface (1 a), and the thickness H1 from the highest point of the top of the accommodating groove (1 c) to the top surface of the transparent shell (1) satisfy: w2 is more than or equal to 15mm, W1 is more than or equal to 2H1 is more than or equal to 6mm; the top of the accommodating groove is the thinnest part of the transparent shell and is the part where the structural weakness is located, so that the thickness of the top of the accommodating groove is more than or equal to 3mm, and the structural strength of the part is ensured; the distance between the LED luminous body (2) and the top wall of the accommodating groove (110 c) is 1/5 of the diameter (phi) of the lamp bead of the LED luminous body (2);
Or the diameter phi of the lamp bead of the LED luminous body (2), the height H2 of the light emergent surface (1 a) and the height (H3) of the light incident surface (1 b) satisfy the following conditions: h2 phi is more than or equal to 10mm, H3 phi is more than or equal to 12mm, and phi is more than or equal to 3mm; preferably, straw hat lamp beads with phi 5-phi 8 are selected.
Preferably, the light emergent surface (1 a) of the transparent shell (1) is an inclined surface or an arc surface;
Main light beams in the normal direction of outgoing light of the LED luminous body (2) are incident at a small angle elevation angle (theta 3), the angle of incidence (theta 1) of the outgoing light is more than or equal to 30 degrees and more than or equal to 0 degrees, the angle of incidence (theta 1) of the incoming light surface (1 b), the angle of incidence (theta 2) of the outgoing light surface (1 a) meets the requirements of theta 1 and more than or equal to theta 2, and the horizontal widths of side walls at the middle position of the outgoing light surface (1 a) are matched with the angles of incidence (theta 1) and (theta 2) to meet the requirements of the following conditions: after the main light beam in the normal direction of the LED luminous body (2) is refracted through the light incident surface or/and the light emergent surface, upward displacement is generated and the main light beam is emitted along the horizontal direction, and the reference is made to fig. 3 correspondingly;
or the inclination angle (theta 1) of the light incident surface (1 b), the inclination angle (theta 2) of the light emergent surface (1 a), the elevation angle (theta 3) of the main beam in the light normal direction emitted by the LED luminous body (2) and the refractive index n of the transparent shell (1) satisfy the following conditions:
sin(90°-θ1-θ3)=n·sinγ
n·sin (γ+θ1- θ2) =sin (90 ° - θ2), where γ is the refraction angle on the light incident surface;
the solution equation can be obtained:
n2·sin2(θ1-θ2)=cos2(θ1+θ3)+cos2θ2-2·cosθ2·cos(θ1+θ3)·cos(
θ1-θ2)，
That is, θ2=arc tan { [ n·sin (arc sin (cos (θ1+θ3)/n) +θ1) -1]/[ n·cos (arc sin (cos (θ1+θ3)/n) +θ1) ] }, and the LED emits light, after being refracted, to be displaced upward and emitted in the horizontal direction;
the technical scheme can ensure high emission efficiency in the horizontal direction, is beneficial to considering the upward luminous effect, and can accurately distribute the proportion of horizontal light intensity and upward light intensity through the elevation angle (theta 3) of the main light beam in the normal direction of the LED emitted light;
furthermore, the light emergent surface (1 a) can further improve the light concentration degree of emergent light through the cambered surface of the inclination angle (theta 2).
Preferably, the light emergent surface (1 a) of the transparent shell (1) is an inclined surface or an arc surface;
Main light beams in the normal direction of emergent light of the LED luminous body (2) vertically enter along the light incident surface (1 b), are refracted and deflected by the light emergent surface (1 a), generate upward displacement and are emergent along the horizontal direction, and correspondingly refer to FIG. 4:
or the inclination angle (theta 1) of the light incident surface (1 b), the inclination angle (theta 2) of the light emergent surface (1 a), the elevation angle (theta 3) of the main beam in the light normal direction emitted by the LED luminous body (2) and the refractive index n of the transparent shell (1) satisfy the following conditions:
30 degrees or more, theta 3 is more than 7.5 degrees, theta1=90 degrees-theta3 (namely, the LED luminous body vertically enters the light incident surface),
Cos θ2· (n·cos θ3-1) =n·sin θ2·sin θ3, i.e.:
θ2=arc tan [ (cos θ3-1/n)/sin θ3], so that incident light vertically enters the light incident surface, is refracted and deflected by the light emergent surface, generates upward displacement and is emitted along the horizontal direction;
the technical scheme can ensure high emission efficiency in the horizontal direction, is beneficial to considering the upward luminous effect, and can accurately distribute the proportion of horizontal light intensity and upward light intensity through the elevation angle (theta 3) of the main light beam in the normal direction of the LED emitted light;
Furthermore, the light emergent surface can be an arc surface with an inclination angle theta 2, and a plano-convex lens effect is formed between the light emergent surface and the light incident surface, so that the light concentration degree of emergent light is further improved.
According to the scheme, the light enters the light incident surface in a direct irradiation mode, the light emergent ratio can be ensured, the main light beam in the normal direction of the LED obliquely and upwards exits and upwards deflects, and after refraction, the main light beam deflects downwards at the emergent surface and exits towards the horizontal direction as much as possible.
Preferably, the light emergent surface (1 a) of the transparent shell (1) is an inclined surface or an arc surface;
The main beam in the normal direction of the LED is incident along the horizontal direction, is refracted by the light incident surface and the light emergent surface with the same inclination angle, generates upward displacement (Δh), and exits along the horizontal direction, and corresponds to reference to fig. 5:
or the inclination angle (theta 1) of the light incident surface (1 b), the inclination angle (theta 2) of the light emergent surface (1 a) and the elevation angle (theta 3) of the main beam in the light emergent normal direction of the LED luminous body (2) satisfy the following conditions:
θ3=0° (i.e. the LED light emitter is flat-shooting), 60 ° is greater than or equal to θ1=θ2 is greater than or equal to 30 ° (i.e. the light incident surface is parallel to the light emergent surface), so that the incident light is horizontally incident on the light incident surface, refracted and deflected by the light emergent surface, and then generates upward displacement (Δh) and exits along the horizontal direction;
The upward displacement quantity delta H=W1.sin theta 1.cos theta 1 [1-sin theta 1/(n 2-cos2θ1)1/2 ], wherein n is the refractive index of the transparent material of the transparent shell (1), W1 is the horizontal width of the side wall between the light incident surface and the light emergent surface, the upward displacement (delta H), the diameter (phi) of the condensing lens of the LED luminous body (2), the height (H2) of the light emergent surface (1 a) and the distance (H4) between the LED luminous body (2) and the top wall of the accommodating groove (110 c) thereof are met, and H2-phi/2 is more than or equal to delta H is more than or equal to phi/2, or delta H is approximately equal to H1+ H4+ phi/2-H2/2.
The upward displacement of the light beam can be controlled by adjusting the horizontal width of the side wall where the light incident surface and the light emergent surface are positioned; the emergent light surface (1 a) can also further improve the light concentration degree of emergent light through the cambered surface of the inclination angle (theta 2); the scheme is easiest to implement and is more convenient to operate.
Preferably, the emergent light surface (1 a) is an arc surface, so that the emergent light diffusion angle is smaller, the concentration degree in the horizontal direction is higher, the viewing distance is farther, and the ratio (sagittal ratio) of the arc height (called sagittal height) to the arc (arched) span is between 1:12 and 1:4.
Further, the LED luminous body (2) emits light from the outer surface of the transparent shell (1) in the ratio of light intensity in the horizontal direction and the upward direction is between 3:1 and 12:1. The road surface under different illumination conditions is most favorable for the luminous induction of motor vehicle drivers and pedestrians, and is more suitable for the current road diversification requirements. The lighting conditions and the vehicle speed designs of different roads such as a primary road, a secondary road, a tertiary road, a highway and an urban road are different, the vehicle speed on the highway is high, the horizontal luminous intensity is large, the viewing distance is long, the stray light of the urban road is large, the vehicle speed is low, and the horizontal luminous intensity ratio is relatively small.
Further, the transparent shell (1) is an injection molding shell, preferably an injection molding shell which is easy to be drawn and molded; preferably, the thinnest part of the body wall is controlled to be more than or equal to 3mm, and the thickest part is controlled to be less than or equal to 15mm; thereby not only ensuring the strength of the whole structure, but also being beneficial to injection molding.
Furthermore, a gap (1 d) is arranged at a thicker part between the light incident surface (1 b) and the light emergent surface (1 a), and transparent light guide glue with the refractive index similar to that of the shell material is arranged in the gap (1 d). When the injection molding shell is too thick, local deformation or foaming can be caused in the injection molding process, a notch (1 d) can be formed in a thicker part between the light incident surface and the light emergent surface, transparent light guide glue with refractive index similar to that of the shell material is arranged in the notch (1 d), the solidified light guide glue is combined with the transparent shell into a whole, the solidified light guide glue plays a role in notch material supplementing, and the light guide effect equivalent to or similar to that of the whole transparent shell is correspondingly played.
Further, the accommodating groove (1 c) is an open accommodating groove with an inverted U-shaped cross section (the top is arched) or a lower open trapezoid along the light emergent direction, or an accommodating groove with a lower open trapezoid along the longitudinal section along the light emergent direction, or a plurality of accommodating groove units with an inverted U-shaped cross section or a lower open trapezoid along the light emergent direction are arranged into an array type accommodating groove, or a plurality of accommodating groove units with a lower open trapezoid along the longitudinal section along the light emergent direction are arranged into an array type accommodating groove.
Further, a single LED luminous body is arranged in a containing groove (1 c) with the narrower containing groove width more than or equal to phi, or two or more LED luminous bodies with the wider containing groove width more than or equal to 2 phi are arranged in the containing groove (1 c) and are arranged into an array, wherein (phi) is the diameter (phi) of a condensing lens of the LED luminous body (2) or the diameter of a lamp bead.
Further, a transparent separator is arranged in the accommodating groove with a wider width (the width of the accommodating groove is more than or equal to 2 phi) to play roles in structure reinforcement and partition, wherein (phi) is the diameter (phi) of the condensing lens or the diameter of the lamp bead of the LED luminous body (2).
Further, the condensing lens carried by the LED luminous body (2) is a primary condensing lens integrally packaged with the LED or a secondary condensing lens assembled secondarily.
Further, the LED luminous body (2) is a pin type vertically packaged LED cylindrical lamp bead with a primary condensing lens at the top or a patch LED with a condensing lens. The straw hat lamp beads with the primary lenses with the light focusing function are preferable.
Further, an upward reflecting layer (6) is arranged below the LED luminous body (2), the reflecting layer (6) is a white printing layer or a coating reflecting sheet (the radial downward luminous reflection of the LED is upward, so that the LED can be easily emitted from the transparent top shell, and the upward emergent light efficiency is increased); or a light diffusion layer (which emits light upwards relatively and is not dazzling) is arranged above the LED luminous body (2) so as to be beneficial to visual comfort of pedestrians; or a long afterglow luminous layer is arranged above the LED luminous body (2), so that the LED luminous body has an afterglow luminous function and can also serve as an effect of a light diffusion layer.
Further, a long afterglow illuminant which can be excited by LED light is arranged on the inner wall of the transparent shell (1); or a long afterglow luminous body which can be excited by LED light is arranged in the accommodating groove of the transparent shell (1), or a long afterglow luminous body which can be excited by LED light is arranged on the LED luminous body (2); the LED light distribution emergent structure with the long afterglow luminous function is formed.
Further, the LED luminous body (2) and other accessories are packaged in the transparent shell (1) to form luminous spikes, or the LED luminous body (2) is packaged in the transparent shell (1) to form a luminous inner container with an LED light distribution emergent structure, and the luminous inner container and the protective shell (5) are combined into the luminous spikes with the luminous inner container being partially surrounded by the protective shell (5) and partially exposed at the top of the transparent shell (1) through packaging glue or fasteners; the LED light distribution emergent structures are symmetrically arranged at the front side and the rear side of the top of the spike, the positions are structures with emergent light main luminous directions respectively emitting light in forward directions and backward directions, or the LED light distribution emergent structures are arranged at the front side of the top of the spike, and the positions are structures with emergent light main luminous directions emitting light in forward directions in one direction; or the LED light distribution emergent structures are symmetrically arranged at the left side and the right side of the top of the spike, the positions are structures with emergent light main luminous directions respectively emitting light in forward directions and backward directions, or the LED light distribution emergent structures are arranged at the left side and the right side of the top of the spike, and the positions are structures with emergent light main luminous directions emitting light in forward directions and in one direction.
Further, a long-afterglow illuminant which can be excited by LED light is arranged in the accommodating groove of the transparent shell (1), so that the luminous spike with the long-afterglow luminous function is formed.
Further, a solar photovoltaic module is arranged in the accommodating cavity between the front LED light distribution emergent structure and the rear LED light distribution emergent structure of the transparent shell (1), the solar photovoltaic module is connected with a control circuit, and the control circuit is also connected with the LED luminous body (2) and the energy storage element through circuits respectively;
the solar photovoltaic module, the LED luminous body (2), the control circuit and the energy storage element are packaged in the transparent shell (1) through packaging glue or a fastener to form a solar luminous spike;
Or the solar photovoltaic module, the LED luminous body (2), the control circuit and the energy storage element are packaged in the transparent shell (1) through packaging glue or a fastener to form a luminous inner container with an LED light distribution emergent structure, and the luminous inner container and the protective shell (5) are combined into a solar luminous spike with the luminous inner container being partially surrounded by the protective shell (5) and the top part of the transparent shell (1) being exposed through the packaging glue or the fastener.
Further, the LED luminous body (2) is electrically connected with the outside through an external lead; the LED luminous body (2) and other accessories are packaged in the transparent shell (1) through packaging glue or a fastener to form an active luminous spike; or the LED luminous body (2) and other accessories are packaged in the transparent shell (1) through packaging glue or a fastener to form a luminous inner container with an LED light distribution emergent structure, and the luminous inner container and the protective shell (5) are combined into an active luminous spike which is partially surrounded by the protective shell (5) and is exposed out of the top part of the transparent shell (1) through the packaging glue or the fastener;
Or a long afterglow illuminant which can be excited by LED light is also arranged in the accommodating groove of the transparent shell (1), and the LED illuminant (2) is electrically connected with the outside through an external lead; the LED luminous body (2), the long-afterglow luminous body and other accessories are packaged in the transparent shell (1) through packaging glue or a fastener to form an active luminous spike with the long-afterglow luminous function; or the LED luminous body (2), the long-afterglow luminous body and other accessories are packaged in the transparent shell (1) through packaging glue or a fastener to form a luminous inner container with an LED light distribution emergent structure and long-afterglow luminous function, and the luminous inner container and the protective shell (5) are combined into an active luminous spike with the long-afterglow luminous function, wherein the luminous inner container is partially surrounded by the protective shell (5) through the packaging glue or the fastener, and the top part of the transparent shell (1) is partially exposed.
Further, a metal protection gland is arranged above the LED light distribution emergent structure, or a protection body is arranged around the LED light distribution emergent structure, so that the effect of further protecting the transparent shell (1) is achieved, and the overall compression resistance and impact resistance of the LED light distribution emergent structure and the spike are improved.
Further, a retro-reflector is arranged on the transparent shell (1) or the protective shell (5) to form the luminous and reflective spike.
Further, the transparent shell (1) is a transparent shell with forward and backward opposite inclined planes, front, back, left and right symmetrical and overall rectangular top, and the solar photovoltaic module is arranged below the middle part of the top shell of the transparent shell (1); the left side and the right side of the solar photovoltaic module are symmetrically provided with accommodating grooves with inverted U-shaped cross sections, and the LED luminous bodies (2) are arranged below reflecting surfaces (1 a) with the inverted U-shaped cross sections, so that an LED light distribution emergent structure with emergent light emitting directions along the forward direction of the spike or along the forward direction and the backward direction of the spike is formed; the forward and backward inclined planes of the transparent shell (1) are also provided with a retro-reflector, a control circuit and an energy storage element are also arranged in the accommodating cavity of the transparent shell (1), and the solar photovoltaic module, the LED luminous body (2) and the energy storage element are respectively connected with the control circuit through circuits; the solar photovoltaic module, the LED luminous body (2), the control circuit and the energy storage element are packaged in the transparent shell (1) through packaging glue or a fastener to form a convex solar luminous reflecting spike, or the solar photovoltaic module, the LED luminous body (2), the control circuit and the energy storage element are packaged in the transparent shell (1) through packaging glue or the fastener to form a luminous inner container with an LED light distribution emergent structure, and the luminous inner container and the protective shell (5) with a slope on the side part are combined into the convex solar luminous reflecting spike, wherein the luminous inner container is partially surrounded by the protective shell (5) and the top part of the transparent shell (1) is partially exposed through the packaging glue or the fastener.
Further, the transparent shell (1) is a luminous liner shell with a raised top, the forward and backward side parts of the raised top are provided with forward and backward opposite inclined planes, and the solar photovoltaic module is arranged below the middle part of the top shell of the luminous liner shell; the front side and the rear side of the solar photovoltaic module are provided with inclined planes with inverted U-shaped accommodating grooves in cross sections and facing the forward direction and the backward direction, the LED luminous bodies (2) are a plurality of LED rows arranged in a linear array below a reflecting surface (1 a) with the inverted U-shaped accommodating grooves in cross sections, and an LED light distribution emergent structure with emergent light emitting directions along the forward direction of the spike or along the forward direction and the backward direction of the spike is formed; a control circuit and an energy storage element are also arranged in the accommodating cavity of the transparent shell (1), and the solar photovoltaic module, the LED luminous body (2) and the energy storage element are respectively connected with the control circuit through circuits; the solar photovoltaic module, the LED luminous body (2), the control circuit and the energy storage element are packaged in the transparent shell (1) through packaging glue to form a luminous inner container with an LED light distribution emergent structure, the protective shell (5) is formed by combining a metal bottom shell with an upward cavity and a top cover with an opening in the middle, and the luminous inner container is locked in the protective shell (5) and combined into a luminous inner container through packaging glue or a fastener to be partially surrounded by the protective shell (5) to form the buried solar luminous spike.
Further, the transparent shell (1) is a luminous liner shell with a raised top, and the forward and backward side parts of the raised top are provided with forward and backward opposite inclined planes; the LED luminous body (2) is a plurality of LEDs arranged in a linear array below a reflecting surface (1 a) with the inverted U-shaped accommodating grooves in the cross section, so that an LED light distribution emergent structure with emergent light main luminous direction emitting light along the forward direction of the spike or emitting light along the forward direction and the backward direction of the spike is formed; the LED luminous body (2) is electrically connected with the outside through an external lead; the LED luminous body (2) and other accessories are packaged in the transparent shell (1) through packaging glue or a fastener to form a luminous inner container with an LED light distribution emergent structure, the protective shell (5) is formed by combining a metal bottom shell with an upward cavity and a top cover with an opening in the middle, and the luminous inner container is locked in the protective shell (5) and combined into an underground active luminous spike which is partially surrounded by the protective shell (5) and partially exposed at the top of the transparent shell (1) through the packaging glue or the fastener.
Further, the transparent shell (1) is a wide cross-shaped transparent shell with the top being symmetrical, the LED luminous body (2) and other accessories are packaged in the transparent shell (1) through packaging glue or fasteners to form a luminous liner with LED light distribution emergent structures on the left side and the right side, the emergent light main luminous direction of the luminous liner emits light along the forward direction and the reverse direction, the protective shell (5) is formed by combining a metal bottom shell with an upward open cavity and a symmetrical top cover with an upward convex protective body and a wide cross-shaped opening in the middle part, and the luminous liner is locked in the protective shell (5) and combined into a solar luminous spike or an active luminous spike with the luminous liner being partially surrounded by the protective shell (5) through packaging glue or fasteners.
Transparent casing (1):
The transparent shell (1) is at least a shell with a downward opening containing cavity, and mainly has the functions of containing, supporting, transmitting light and the like, and generally adopts transparent PC or transparent acrylic or glass and the like; can be used as a transparent spike shell as a whole, and can also be used as a combined shell of spike by combining an assembly and a protective shell (5).
LED illuminant (2):
The LED luminous body (2) is a single or a plurality of LED luminous bodies with condensing lenses, and is preferably straw hat lamp beads (such as phi 5 and phi 6 straw hat lamp beads and the like) of a primary lens with a condensing function; the secondary lens can be used for condensing light to finish the duty ratio distribution of the light intensity in the horizontal direction and the light intensity in the upward direction; the light-emitting color can be red, yellow, green, or a combination of two or more light-emitting colors as required.
Separator (3):
The separator (3) mainly plays roles of separating, supporting, accommodating, fixing, reinforcing and the like of a dustproof or waterproof air layer, can be made of plastic or metal or composite plates or special-shaped plates, is preferably an injection molding piece, can be provided with packaging glue, and can be used as the simplest available circuit board layer.
The separation body (3) forms an air layer (4) between the transparent shell (1) and a limiting structure (such as an inner ladder body clamping position) in the transparent shell (1); the LED lamp can be provided with electric elements such as an LED luminous body (2) or a circuit board and the like, can serve as a partition board during glue filling, can play a structural reinforcing role, and can also be provided with a bracket, a support column and a vertical rib to play a reinforcing role.
Air layer (4):
an air layer (4) is arranged between the separator (3) and the inner wall of the transparent shell (1) and serves as a light emitting groove so as to meet the light condensing effect and light emitting condition.
Protective housing (5):
The protective shell (5) mainly plays roles of supporting, accommodating, fixing, installing, protecting, transmitting light and the like; the protective shell (5) and the transparent shell (1) can be combined into a spike shell through structural adhesive or fasteners and the like; the protective shell (5) can be a single piece or an assembly (such as a combination of a bottom shell and a top cover), and the top cover can cover the top of the transparent shell (1), particularly the top of the LED light distribution emergent structure, so that the compressive strength is improved; made of metal or ceramic or plastic or glass or composite material, preferably cast aluminum, wrought aluminum, alloy steel or aluminum alloy).
Reflective layer (6):
the reflecting layer (6) is a white printing layer or a coated reflecting sheet on the circuit board, and the radial downward luminescence of the LED is reflected upwards, so that the light emitted from the transparent top shell is facilitated, and the upward emergent light efficiency is improved.
The invention has the main advantages that:
1. Compared with the LED light distribution outgoing structure which is not subjected to light path design and light emission matching and the light emission spike comprising the same, the LED light distribution outgoing structure which is subjected to light path design and light emission matching and the light emission spike comprising the same have the advantages that the lateral (horizontal) light emission performance and the overall light outgoing efficiency are greatly improved, and the unexpected light distribution outgoing effect is achieved.
2. Compared with the conventional light-emitting spike with the light path design and light emission matching LED light distribution emergent structure and the light-emitting spike containing the light-emitting spike, the light-emitting spike has good remote light-emitting effect, partial upward or lateral light energy is transmitted from the top surface of the shell, the light-emitting area is increased, pedestrians are facilitated, the overall light energy utilization rate is high, different requirements and emphasis points of a person and a vehicle can be considered, the design allowance (delta H) of the spike structure can be improved, the shell structure of the spike can be more compact, namely the height of exposing the road surface during installation of the spike can be reduced, so that the bump feeling of a vehicle and collision to pedestrians and non-motor vehicle drivers can be reduced, and the structural strength and the compression resistance of the spike can be further increased by increasing the thickness of a top shell in the size limiting range meeting traffic specifications on the premise of ensuring the visible distance of the spike.
3. Compared with the existing commonly used light-emitting spike with the inverted V-shaped light-emitting groove structure, the light-emitting spike with the light-emitting structure is more reasonable in light energy distribution, and the light energy is mainly concentrated in the horizontal direction, so that the visible light distance of light emission is increased as much as possible, the light-emitting induction and indication can be provided for motor vehicle drivers, and light interference and glare to pedestrians or non-motor vehicle drivers are less. The overall light energy utilization in the horizontal direction is high.
4. Compared with the existing commonly used light-emitting spike with the inverted V-shaped light-emitting groove structure, the light-emitting spike with the arched light-emitting groove structure has higher structural strength at the top (particularly at the highest position of the top wall of the light-emitting groove) and stronger compression resistance and impact resistance.
5. Compared with the existing common perforated flat-jet type luminous spike, the luminous spike with the arched light-emitting groove structure has the advantages that the process is simpler, the structural strength of a luminous part is higher, water is less prone to entering, and compared with the existing luminous spike with the common inverted V-shaped light-emitting groove structure, the luminous spike with the arched light-emitting groove structure is more beneficial to the injection molding process of a transparent shell.
6. The LED light distribution emergent structure which is subjected to light path design and luminescence matching is particularly suitable for luminescent equipment represented by luminescent spikes, can be used for protruding spikes, buried spikes, luminescent outline markers and the like, has wider application range and better luminescent effect, can improve quality and efficiency, greatly improve comprehensive performance, improve traffic safety efficiency and reduce traffic safety accidents, has very high application value and social benefit, and has higher economic value compared with the existing similar products which are prepared by increasing power to make up for the defects.
Description of the drawings (for convenience of description, the embodiment of the present invention mainly takes, as an example, a typical case of an LED light distribution outgoing structure with θ3=0° that is in a horizontal outgoing manner and a light emitting spike thereof, in which θ1=θ2, that is, inner and outer inclined surfaces are parallel to each other and an LED is packaged from a vertical type with a primary condenser lens)
FIG. 1 is a schematic view of a longitudinal section along the light emitting direction of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention along the light emitting direction;
FIG. 3 is a schematic view of the principle of light emission and a schematic view of the arc surface of the light-emitting surface, wherein the principal light beam in the normal direction of the LED light-emitting body (2) of the invention is refracted by the light-entering surface and the light-emitting surface, then generates upward displacement (delta H) and is emitted along the horizontal direction;
fig. 4 is a schematic diagram of a light emitting principle and a schematic diagram of an arc surface of a light emitting surface, wherein a main light beam in a normal direction of an LED of the present invention is vertically incident along the light incident surface (1 b), is refracted by the light emitting surface (1 a) to generate upward displacement (Δh) and is deflected downward to exit along a horizontal direction;
FIG. 5 is a schematic diagram of a principle of light emission and a schematic diagram of an arc surface of a light emitting surface, wherein a main beam in a normal direction of an LED of the present invention is incident along a horizontal direction, is refracted by a light incident surface and a light emitting surface with the same inclination angle, generates upward displacement (delta H), and is emitted along the horizontal direction;
FIG. 6 is a schematic diagram showing the light intensity distribution of the LED illuminant of the present invention after passing through the condensing lens;
Fig. 7 is a schematic view of a longitudinal section of a solar light-emitting reflective protruding spike according to the first embodiment of the present invention along the light emitting direction;
FIG. 8 is a schematic diagram of a split explosion structure of a solar energy light-emitting reflective raised spike according to the first embodiment of the invention;
Fig. 9 is a schematic perspective view of a solar light-emitting reflective raised spike according to a first embodiment of the present invention;
FIG. 10 is a schematic top perspective view of a solar light-emitting reflective raised spike according to an embodiment of the present invention;
Fig. 11 is a schematic diagram showing an inverted perspective view of a transparent casing of a solar light-emitting reflective raised spike according to the first embodiment of the present invention;
FIG. 12 is a schematic bottom view of a transparent housing of a solar energy light-emitting reflective raised spike in accordance with an embodiment of the present invention;
Fig. 13 and 14 are graphs showing comparison of experimental test values of horizontal light intensity under a set of identical preconditions (within an error allowable range) of the first LED light distribution outgoing structure (fig. 13) and the conventional inverted V-shaped LED light distribution outgoing structure (fig. 14);
FIG. 15 is a diagram of a horizontal light intensity test site for an LED light distribution exit structure and a conventional inverted V-shaped LED light distribution exit structure under the same preconditions (within the error allowable range);
FIG. 16 is a schematic view of a split explosion structure of a solar energy light-emitting reflective raised spike in accordance with a second embodiment of the present invention;
FIG. 17 is a schematic top perspective view of a solar light-emitting reflective raised spike in accordance with a second embodiment of the present invention;
fig. 18 is a schematic perspective view of a solar light-emitting reflective raised spike according to a second embodiment of the present invention;
FIG. 19 is a schematic bottom view of a transparent housing of a solar energy light-emitting reflective raised spike in accordance with a second embodiment of the present invention;
FIG. 20 is a schematic view of a split explosion structure of an underground solar energy light-emitting spike according to a third embodiment of the invention;
fig. 21 is a schematic perspective view of a buried solar energy light-emitting spike according to a third embodiment of the present invention;
FIG. 22 is a schematic top perspective view of a buried solar energy light emitting spike of the third embodiment of the present invention;
FIG. 23 is a perspective view of a transparent housing of a buried solar energy light emitting spike of embodiment three of the present invention;
fig. 24 is a schematic perspective view of an underground active light emitting spike according to a fourth embodiment of the present invention;
FIG. 25 is a schematic top perspective view of a buried active light emitting spike of a fourth embodiment of the present invention;
FIG. 26 is an inverted perspective view of a transparent housing of a buried active light emitting spike of embodiment four of the present invention;
FIG. 27 is a cross-sectional view of an embedded active light emitting spike of a fifth embodiment of the present invention along the light exit direction;
FIG. 28 is a schematic view of a split explosion structure of an embedded active light emitting spike according to a fifth embodiment of the present invention;
fig. 29 is a schematic perspective view of an underground active light-emitting spike according to a fifth embodiment of the present invention;
FIG. 30 is a schematic top perspective view of an embedded active light emitting spike of embodiment five of the present invention;
FIG. 31 is a schematic diagram showing an inverted perspective view of a transparent housing of an embedded active light emitting spike of embodiment five of the present invention;
FIG. 32 is a cross-sectional perspective view of a buried active light emitting spike of a sixth embodiment of the present invention along the light exit direction;
FIG. 33 is a schematic view of a split explosion structure of an embedded active light emitting spike according to a sixth embodiment of the present invention;
Fig. 34 is a schematic perspective view of an underground active light emitting spike according to a sixth embodiment of the present invention;
fig. 35 is a schematic top perspective view of an underground active light emitting spike of the sixth embodiment of the present invention.
Detailed Description
Embodiments of the present invention are described with reference to the accompanying drawings.
Example 1
A solar luminous reflective raised spike comprises a transparent shell I (110), an LED straw hat lamp bead I (120), a separator I (130), an air layer I (140), a containing cavity I (150), a bottom shell I (160), a retroreflector I (170), a photovoltaic module I (180), a control circuit I (190) and an energy storage element I (1100), as shown in figures 7-15.
Transparent housing one (110):
The transparent shell I (110) is an injection molding piece which is formed by an injection molding process through a transparent PC, is similar to a cuboid and is provided with a downward opening cavity. Four corners of the top of the device are downwards sunken to form two groups of forward and backward inclined planes with the height difference of 6mm and the thickness of 10mm, the outer inclined planes (110 a) and the inner inclined planes (110 b) of the inclined planes are mutually parallel and form an included angle of 45 degrees with the top surface, a containing groove (110 c) with the top of arch (similar to an inverted U-shaped cross section) and the width (inner diameter) of 6mm is arranged between each group of inner inclined planes (110 b), and the axial direction of the containing groove (110 c) faces the direction of the inner inclined planes (110 b). The top of the accommodating groove I (110 c) of the transparent shell I (110) is 3.2mm away from the top surface of the transparent shell I (110). The containing groove with a longitudinal section or a cross section in a shape of a trapezoid with an opened bottom can also be selected.
LED straw hat lamp bead one (120):
The first LED straw hat lamp bead (120) is F5 type straw hat lamp bead with phi=5 mm, the first LED straw hat lamp bead is welded on a circuit board, a metal pin is bent for 90 degrees to enable the direction of an optical axis to be parallel to the circuit board, the circuit board welded with the first LED straw hat lamp bead (120) is arranged in the first accommodating groove (110 c) through a limiting structure, the distance between the F5 type straw hat lamp bead and the top wall of the first accommodating groove (110 c) is 0.5mm, the main luminous direction of the straw hat lamp bead is parallel to the bottom surface of a spike and faces the direction of the corresponding inner inclined plane (110 b), and the half value angle of the straw hat lamp bead after passing through the first lens is 10 degrees.
The circuit board below the F5 straw hat lamp beads is coated with a white coating so as to increase the upward reflection and luminescence effects of the LEDs, and the circuit board below the F5 straw hat lamp beads can be provided with an aluminized reflecting film so as to increase the upward reflection and luminescence effects.
The light guide glue mixed with the long afterglow powder can be solidified in the first accommodating groove (110 c) above the F5 straw hat lamp bead, so that the effect of light diffusion and the effect of long afterglow luminescence can be achieved.
Separator one (130):
The first separator (130) is used as a circuit board with a threading hole, is fixed below the top shell of the first transparent shell (110) through a limiting structure and bonding, and forms a sealed air layer (140) with the first accommodating groove (110 c) to serve as a light emitting groove.
The circuit board is also welded with a single chip microcomputer control circuit serving as a first control circuit (190).
The LED light distribution outgoing structure combined by the elements becomes a local structure of the spike.
Accommodation cavity one (150):
an inward-sinking square accommodating cavity I (150) is arranged on the inner bottom surface of the top shell of the transparent shell I (110).
Bottom case one (160):
The first bottom shell (160) is a cast aluminum protective shell with an upward opening containing cavity and a height of 24.5mm, the cast aluminum protective shell is similar to a table body in shape, opposite inclined planes which form an included angle of 30 degrees with the bottom surface and are provided with convex grooves are respectively arranged on the front side and the rear side, two downward 6mm depressions corresponding to the inclined plane light emergent parts of the first transparent shell (110) are arranged on the left side and the right side of the upper part of the inclined plane, and the height from the bottom surface of the depressed parts is 18.5mm.
Retroreflective body one (170):
The first retroreflector (170) is a reflecting lattice plate made of transparent PMMA resin through an injection molding process, and is fixed in the convex-shaped grooves on the front side part and the rear side part of the first shell (160) through structural adhesive bonding.
Photovoltaic module one (180):
The photovoltaic component I (180) is a rectangular monocrystalline silicon solar panel, is embedded into the square accommodating cavity I (150) below the top shell of the transparent shell I (110) from the bottom opening of the transparent shell I (110) and is fixed by light guide glue.
The method comprises the steps of firstly fixing a reflective lattice plate into convex grooves on the front side and the rear side of a first bottom shell (160) through structural adhesive, then inverting a transparent shell (110), sequentially fixing a photovoltaic module (180) and a circuit board, connecting a lead from a threading hole of the circuit board with a lithium battery serving as an energy storage element (1100), pre-packaging the circuit board and the inner wall of the transparent shell (110) through silicone adhesive or hot melt adhesive, pouring epoxy resin into the bottom opening of the transparent shell (110) to be flush with the bottom surface of the transparent shell and solidifying the transparent shell to obtain a luminous liner, embedding the luminous liner into the top opening of the first bottom shell (160) according to clearance fit within a required tolerance range, fixing and packaging the luminous liner through structural adhesive or a fastener to form a compression spike with the total height of 24.5mm and high structural strength, wherein the luminous liner is surrounded by the first bottom shell (160), and the LED light distribution structure is symmetrically arranged on the left side and the right side of the top of the metal spike.
The solar luminous reflective raised spike is fixed on a road surface through screws and viscose during installation, the front side and the rear side of the spike face the main advancing direction of a road vehicle, light emitted by an F5 straw hat lamp bead is concentrated through a lens, and then is emitted from the main advancing direction of the road vehicle through the secondary refraction of the inner wall and the outer wall and upward displacement delta H (approximately 3.6 mm), so that the spike can emit light in a stroboscopic way or a normal light way with certain period and duty ratio, the spike has high horizontal emergent light intensity ratio and farther visual distance, and has good luminous effect on a motor vehicle driver; the inverted V-shaped LED light distribution emergent structure has the advantages that the inverted V-shaped LED light distribution emergent structure adopts LEDs with large angle half-value angles, even the LEDs incline outwards, the horizontal light intensity of the two LEDs is 3 times or more different, the anti-compression shock performance is strong (the anti-compression strength can reach 20 tons and is greatly higher than the standard of 10 tons required by the national standard), bright spots with the diameter of about 5mm can be obviously seen, the recognition degree is high, the structural strength is high, the luminous angle is easier to control, and the like. And LED straw hat lamp beads with primary condensing lenses with different condensing effects, such as LED lamp beads with half-value angles within 5-15 degrees, can be used for highways, or lamp beads with half-value angles within 25-45 degrees, can be used for urban roads, and can meet different requirements.
Example two
A solar luminous reflective raised spike comprises a transparent shell II (210), an LED straw hat lamp bead II (220), a separator II (230), an air layer II (240), a retro-reflector II (270), a photovoltaic component II (280), a control circuit II (290) and an energy storage element II (2100), as shown in figures 16-19.
Transparent case two (210):
The transparent shell II (210) is an injection molding piece which is formed by injection molding of a transparent PC and is provided with a downward opening cavity. The shape of the novel multifunctional desk is similar to that of a desk body, opposite inclined planes which form an included angle of 30 degrees with the bottom surface are respectively arranged on the front side and the rear side, a convex groove is formed in each groove, the left side and the right side of each groove are outwards protruded to form an arc shape, each groove is provided with a mounting round hole, four corners of the top are downwards sunken to form two groups of opposite inclined planes which are forward and backward and have a height difference of 6mm and a thickness of 9mm, an outer inclined plane II (210 a) and an inner inclined plane II (210 b) of each inclined plane are mutually parallel and form an included angle of 45 degrees with the top surface, a containing groove II (210 c) with the top of which the cross section is similar to that of an inverted U shape and the width of which is 6mm is arranged between each group of inner inclined planes II (210 b), and the axial direction of the containing groove II (210 c) faces the direction of the inner inclined plane II (210 b). The top of the second accommodating groove (210 c) of the second transparent shell (210) is 3mm away from the top surface of the second transparent shell (210). The containing groove with a longitudinal section or a cross section in a shape of a trapezoid with an opened bottom can also be selected.
LED straw hat lamp bead II (220):
The second LED straw hat lamp bead (220) is an F5 straw hat lamp bead with phi=5 mm, the LED straw hat lamp bead is welded on a circuit board, a metal pin is bent for 90 degrees, the direction of an optical axis of the metal pin is parallel to the circuit board, the circuit board welded with the second LED straw hat lamp bead (220) is arranged in the second accommodating groove (210 c) through a limiting structure, the distance between the F5 straw hat lamp bead and the top wall of the second accommodating groove (210 c) is 0.5mm, the main luminous direction of the straw hat lamp bead is parallel to the bottom surface of a spike and is opposite to the direction of the corresponding second inner inclined surface (210 b), and the half-value angle of the metal pin after passing through the primary lens is 15 degrees.
Separator two (230):
The second separator (230) is used as the circuit board with the threading hole, is fixed below the top shell of the second transparent shell (210) through a limiting structure and bonding, and forms a sealed air layer (240) with the second accommodating groove (210 c).
The circuit board is also welded with a singlechip control circuit serving as a second control circuit (290).
The LED light distribution outgoing structure combined by the elements becomes a local structure of the spike.
Retroreflective body two (270):
The second retroreflector (270) is a convex reflecting lattice plate made of transparent PMMA resin through an injection molding process, and is fixed into convex grooves on the front side and the rear side of the second transparent shell (210) through ultrasonic heat sealing.
Photovoltaic module two (280):
the photovoltaic component II (280) is a rectangular monocrystalline silicon solar panel, is embedded from the bottom opening of the transparent shell II (210) and is fixed below the center of the top shell of the transparent shell II (210) by light guide glue.
Firstly, a reflective lattice plate is fixed into convex grooves on the front side and the rear side of a transparent shell II (210) through ultrasonic heat sealing, then the transparent shell II (210) is inverted, after a photovoltaic module II (280) and a circuit board are fixed in sequence, a wire is connected from a threading hole of the circuit board and is connected with a lithium battery serving as an energy storage element II (2100), then silicone adhesive or hot melt adhesive is used for pre-packaging between the circuit board and the inner wall of the transparent shell II (210), epoxy resin is used for pouring into the bottom opening of the transparent shell II (210) to be flush with the bottom surface of the transparent shell II and is solidified to obtain a spike, and an LED light distribution emergent structure is symmetrically positioned on the left side and the right side of the top of the spike.
The solar luminous reflective raised spike is fixed on a road surface through screws and adhesives during installation, the front side and the rear side of the spike face the main direction of road vehicle travel, light emitted by the F5 straw hat lamp beads is concentrated through the lenses, and then is emitted from the main direction of road vehicle travel through the secondary refraction of the inner wall and the outer wall and then upwards displacement delta H (approximately equal to 3.2 mm), so that the spike can emit light in a stroboscopic mode or a normally bright mode at a certain period and duty ratio, and has the advantages of high horizontal emergent light intensity ratio, farther visual distance, high identification degree, good luminous effect to a motor vehicle driver, strong compression resistance and impact resistance, high structural strength, easiness in controlling luminous angle and the like.
Embodiment III:
The buried solar luminous spike comprises a transparent shell III (310), an LED straw hat lamp bead III (320), a separation body III (330), an air layer III (340), a top cover III (361), a bottom shell III (362), a photovoltaic module III (380), a control circuit III (390), an energy storage element III (3100) and an external waterproof wire III, as shown in figures 20-23.
Transparent housing three (310):
The transparent shell III (310) is a transparent PC shell and is shaped like a back-off transparent ashtray. The lower part of the transparent shell is a petal-shaped column body, the top of the transparent shell is provided with a cross-shaped upward bulge corresponding to a cross-shaped window on a top cover III (361), four opposite sunken concave parts are provided with two groups of opposite inclined planes which are forward and backward and have a height difference of 6.5mm and a thickness of 10mm, an outer inclined plane III (310 a) and an inner inclined plane III (310 b) of the inclined planes are parallel to each other and form an included angle of 48 degrees with the top surface, a containing groove III (310 c) with an arched top and a width of 7mm is arranged between the opposite inner inclined planes III (310 b), and the top of the transparent shell III (310) is 3mm away from the top surface of the transparent shell III (310).
LED straw hat lamp bead III (320):
the LED straw hat lamp bead III (320) is F6 type straw hat lamp bead with phi=6mm, the LED straw hat lamp bead is welded on a circuit board, a metal pin is bent for 90 degrees, the direction of an optical axis of the metal pin is parallel to the circuit board, the circuit board welded with the LED straw hat lamp bead III (320) is arranged in a containing groove III (310 c) through a limiting structure, the distance between the F6 type straw hat lamp bead and the top wall of the containing groove III (310 c) is 0.5mm, the main luminous direction of the straw hat lamp bead is parallel to the bottom surface of a spike and is opposite to the direction of the corresponding inner inclined plane III (310 b), and the half-value angle of the metal pin after passing through a primary lens of the metal pin is 15 degrees.
Separator three (330):
The third separator (330) is served as a circuit board welded with the third LED straw hat lamp bead (320), is fixed below the third accommodating groove (310 c) through a limiting structure and adhesive, and forms a sealed air layer (340) with the third accommodating groove (310 c). The circuit board is also welded with a singlechip control circuit.
The LED light distribution outgoing structure combined by the elements becomes a local structure of the spike.
Top cover III (361):
The third top cover (361) is a ring-shaped aluminum casting top ring with a wide-body opening window similar to a wide-body cross shape in the middle part, 4 inward convex upper convex bodies with the height of 7.5mm which are inclined towards the outer side face are symmetrically arranged on the top ring to serve as protection bodies, the height of the upper convex bodies is larger than or equal to the height difference of the light emergent part of the inclined surface of the third transparent shell (310), four gaps are formed between the upper convex bodies and the rest of the top ring and the plane part of the outer edge flush, and the 4 outer inclined surfaces (310 a) respectively correspond to the gaps.
Bottom case three (362):
the third bottom shell (362) is a cast aluminum cavity shell with an accommodating cavity, an upward opening and a large upper part and a small lower part.
Photovoltaic module three (380):
the photovoltaic module III (380) is a rectangular monocrystalline silicon solar panel and is fixed to the central part of the inner bottom surface of the top shell of the transparent shell III (310) from a rectangular opening at the bottom of the transparent shell III (310) by light guide glue.
The transparent shell III (310) is inverted, after the photovoltaic module III (380) and the circuit board welded with the LED straw cap lamp bead III (320) and the control circuit are fixed in sequence, a wire is connected from the circuit board and is connected with a lithium battery serving as an energy storage element III (3100), then silicone adhesive or hot melt adhesive is used for pre-packaging between the circuit board and the inner wall of the transparent shell (310), epoxy resin is used for pouring into the bottom opening of the transparent shell III (310) to be flush with the bottom surface of the transparent shell III and is solidified to obtain a luminous liner, a gasket is filled in a containing cavity of the bottom shell III (362), the luminous liner is embedded into the top opening of the bottom shell III (362) according to clearance fit of a required tolerance range, a top cover III (361) is covered, the luminous liner is fixedly packaged by structural adhesive or a fastener to form a spike whole body, and the LED light distribution structure is symmetrically positioned on the left side and the right side of the top of the spike.
The embedded solar energy luminous spike is characterized in that the edge of the main body embedded into the pavement to the bottom shell is flush with the pavement, the top of the spike protrudes out of the ground by about 7.5mm, the front side and the rear side of the spike face the main direction of the road vehicle, the light emitted by the F6 type straw hat lamp beads is concentrated through the lens, and then is emitted out of the main direction of the road vehicle by upwards displacement delta H (approximately 3.3 mm) after secondary refraction of the inner wall and the outer wall, so that the spike can emit light in a certain period and duty ratio by stroboscopic light or normal light, and has the advantages of high light intensity ratio of horizontal emergent light, farther viewing distance, light spots with the diameter of about 6.5mm still visible in the horizontal direction under the illumination condition of 30LUX, high identification degree, good luminous effect on motor vehicle drivers, strong compression resistance (the compression strength can reach 30 tons, and is greatly higher than the standard of 10 tons required by the national standard), high structural strength, easiness in controlling the luminous angle and the like.
Embodiment four:
An underground active light-emitting spike comprises a transparent shell IV (410), an LED light-emitting body IV (421) (422), a separation body IV, an air layer IV (440), a containing cavity IV (450), a top cover IV (461), a bottom shell IV (462) and an external connection waterproof wire IV, as shown in figures 24-26.
Transparent case four (410):
The transparent shell IV (410) is a transparent PC shell and is shaped like a back-off transparent ashtray. The lower part of the transparent shell is a petal-shaped column body, the top of the transparent shell is provided with a cross-shaped upward bulge corresponding to a cross-shaped window on a top cover IV (461), the four sunken concave parts are provided with two groups of opposite inclined planes which are forward and backward and have a height difference of 6.5mm and a thickness of 11mm, an outer inclined plane IV (410 a) and an inner inclined plane IV (410 b) of the inclined planes are mutually parallel and form an included angle of 43 degrees with the top surface, a containing groove IV (410 c) with an arched top and a width of 6mm is arranged between the four opposite inclined planes 410b, and the top of the containing groove IV (410 c) of the transparent shell IV (410) is 3.3mm away from the top surface of the transparent shell IV (410).
The center of the inner top wall of the transparent shell IV (410) is surrounded by a convex rib to form a square groove as a containing cavity IV (450).
LED straw hat lamp bead IV (420):
The fourth LED straw hat lamp bead (421) is an F5 straw hat lamp bead with phi=5 mm, the fourth LED straw hat lamp bead is welded on a circuit board, a metal pin is bent for 90 degrees to enable the direction of an optical axis to be parallel to the circuit board, the circuit board welded with the fourth LED straw hat lamp bead (420) is arranged in the fourth accommodating groove (410 c) through a limiting structure, the distance between the fourth F5 straw hat lamp bead and the top wall of the fourth accommodating groove (410 c) is 0.5mm, the main light-emitting direction of the fourth LED straw hat lamp bead is parallel to the bottom surface of a spike and faces the direction of the fourth corresponding inner inclined plane (410 b), and the half value angle of the fourth LED straw hat lamp bead after passing through the primary lens is 5 degrees.
The four patch type LEDs (422) are arranged in a linear array and welded on a square circuit board, a preformed sheet of the long afterglow luminous body is fixed into the fourth accommodating cavity (450) through a light guide adhesive, and then the circuit board welded with the four patch type LEDs (422) is arranged below the long afterglow luminous body.
And a separator IV:
The fourth separator is served as a circuit board welded with the fourth LED straw hat lamp beads (420), is fixed below the fourth accommodating groove (410 c) through a limiting structure and adhesive, and forms a sealed air layer (440) with the fourth accommodating groove (410 c). The circuit board can be welded with a single chip microcomputer control circuit.
The LED light distribution outgoing structure combined by the elements becomes a local structure of the spike.
Top cap four (461):
the top cover IV (461) is a ring-shaped aluminum casting top ring with a wide-body opening window similar to a wide-body cross shape in the middle part, 2 upper convex bodies which are inclined outwards and arc-shaped in overlooking and have the height of 7mm are symmetrically arranged on the top ring and serve as protecting bodies, the height of the upper convex bodies is larger than or equal to the height difference of the inclined planes of the light emergent part of the transparent shell IV (410), 2 gaps are formed between the upper convex bodies and the rest of the top ring and the plane parts of the outer edge parallel and level, and the 4 outer inclined planes IV (410 a) correspond to the gaps in pairs.
Bottom case four (462):
the bottom shell IV (462) is a cast aluminum cavity shell with an accommodating cavity, an upward opening and a large upper part and a small lower part.
The method comprises the steps of inverting a transparent shell IV (410), embedding a long afterglow luminous body, fixing a circuit board, connecting a waterproof wire from the circuit board, pre-packaging the circuit board and the inner wall of the transparent shell IV (410) by silicone adhesive or hot melt adhesive, filling the bottom opening of the transparent shell IV (410) to a certain height from the bottom surface of the transparent shell IV by epoxy resin, solidifying to obtain a luminous liner with a cable accommodating cavity at the bottom, connecting the waterproof wire which is externally connected with the waterproof wire which is connected with the luminous liner in a cable accommodating groove at the lower part of the luminous liner through a threading hole of a bottom shell IV (462) by waterproof loose joint, filling a gasket in the accommodating cavity of the bottom shell IV (462), embedding the luminous liner into the top opening of the bottom shell IV (462) according to the clearance fit of a required tolerance range, covering the top cover IV (461), fixedly packaging by structural adhesive or a fastener to form a spike whole body with the luminous liner surrounded by the metal top cover IV (461) and the bottom shell IV (462), and symmetrically arranging LED light distribution structures on the front side and the rear side of the top of the spike.
The embedded active light-emitting spike is characterized in that the edge of the main body embedded into the pavement to the bottom shell is flush with the pavement, the top of the spike protrudes out of the ground by about 7mm, the front side and the rear side of the spike face the main direction of the road vehicle, light emitted by the F5 type straw hat lamp beads is concentrated through a lens, and then emitted from the main direction of the road vehicle by upwards shifting delta H approximately 3.8mm after secondary refraction of the inner wall and the outer wall, so that the spike can emit light in a stroboscopic manner or normally-bright manner at a certain period and duty ratio, and the spike has the advantages of high horizontal light intensity ratio, farther apparent distance, high identification degree, good light-emitting effect on motor vehicle drivers, strong compression resistance and impact resistance, high structural strength, easiness in controlling light-emitting angle and the like, and can provide weak light illumination or induction for pedestrians and non-motor vehicle drivers through the long afterglow-afterglow light emitters at certain periods and duty ratios by LEDs.
Fifth embodiment:
An underground active luminous spike comprises a transparent shell five (510), an LED luminous body five (521) (522), a long afterglow luminous body, a separation body five (530), an air layer five (540), a containing cavity five (550), a top cover five (561), a bottom shell five (562) and an external connection waterproof wire five, as shown in fig. 27-31.
Transparent housing five (510):
The transparent shell five (510) is a transparent PC shell and is shaped like a back-off transparent ashtray. The lower part of the top cover is a petal-shaped column body, the top of the top cover is provided with a square upward bulge corresponding to a square window on the top cover five (561), the thickness of the top cover is 10mm, the sides of the square upward bulge, which are forward and backward, are provided with a pair of opposite inclined planes with the height difference of 7mm and the thickness of 10.5mm, the outer inclined planes five (510 a) and the inner inclined planes five (510 b) of the inclined planes are parallel to each other and form an included angle of 45 degrees with the top surface, an accommodating groove five (510 c) with 5 conjoined top parts and the width of 7mm is arranged between the opposite inner inclined planes five (510 b), and the top of the accommodating groove five (510 c) is 3mm away from the top surface of the transparent shell five (510).
The center of the inner top wall of the transparent shell five (510) is surrounded by a convex rib to form a square groove as a containing cavity five (550).
LED luminary five (521) (522):
the LED straw hat lamp beads (521) are F5 type straw hat lamp beads with phi=5 mm, 5 straw hat lamp beads are arranged in an array and welded on a strip-shaped circuit board, metal pins are bent for 90 degrees to enable the direction of an optical axis of the metal pins to be parallel to the circuit board, then the circuit board welded with the LED straw hat lamp beads (521) is arranged in a containing groove (510 c) through a limiting structure, the distance between the F5 type straw hat lamp beads and the top wall of the containing groove (510 c) is 1mm, the main light-emitting direction of the straw hat lamp beads is parallel to the bottom surface of a spike and faces the direction of the corresponding inner inclined plane (510 b), and the half-value angle of the metal pins after passing through a primary lens is 10 degrees.
The patch type LED five (522) is arranged on a square circuit board in a lattice welding way, a preformed sheet of the long afterglow luminous body is solidified in the accommodating cavity five (550) through a light guide adhesive, and then the circuit board welded with the patch type LED five (522) is arranged below the long afterglow luminous body.
Separator five (530):
the fifth separator (530) is served by the circuit board welded with the fifth LED straw hat lamp beads (521), is fixed below the fifth accommodating groove (510 c) through a limiting structure and adhesive, and forms a sealed air layer (540) with the fifth accommodating groove (510 c). The circuit board can be welded with a single chip microcomputer control circuit.
The LED light distribution outgoing structure combined by the elements becomes a local structure of the spike.
Top cap five (561):
The top cover five (561) is a ring-shaped aluminum casting top ring with a square-like wide window formed in the middle part, 2 upper convex bodies which are inclined outwards and half-moon shaped in overlook and have the height of 7.5mm are symmetrically arranged on the top ring and serve as protection bodies, the height of the upper convex bodies is larger than or equal to the height difference of the inclined plane of the light emergent part of the transparent shell five (510), 2 gaps are formed between the upper convex bodies and the rest of the plane parts of the top ring, which are flush with the outer edge, and the opposite inclined planes of the transparent shell five (510) correspond to the gaps exactly.
Bottom case five (562):
The bottom shell five (562) is a cast aluminum cavity type shell with an accommodating cavity, an upward opening and a large upper part and a small lower part.
Inverting the transparent shell five (510), embedding a long afterglow luminous body, fixing a circuit board, connecting a waterproof wire from the circuit board, pre-packaging the circuit board and the inner wall of the transparent shell five (510) by using silicone adhesive or hot melt adhesive, then pouring epoxy resin into the bottom opening of the transparent shell five (510) to a certain height from the bottom surface of the circuit board and solidifying to obtain a luminous liner with a cable containing cavity at the bottom, penetrating the waterproof wire connected with the waterproof wire through a threading hole of the bottom shell five (562) in a cable containing groove at the lower part of the luminous liner, connecting the waterproof wire connected with the luminous liner through waterproof loose joint, filling a gasket in the containing cavity of the bottom shell five (562), embedding the luminous liner into the top opening of the bottom shell five (562) according to the clearance fit of a required tolerance range, covering the top cover five (561), fixedly packaging by using structural adhesive or fasteners to form a spike whole body with the luminous liner surrounded by the metal top cover five (561) and the bottom shell five (561), and symmetrically locating LED light distribution structures on the front side and the rear side of the top of the spike, and also can be provided with a light distribution structure on the front side of the LED spike as a light distribution structure.
The embedded active light-emitting spike is characterized in that the edge of the main body, which is embedded into the pavement, is flush with the pavement when the embedded active light-emitting spike is installed, the top of the spike protrudes out of the ground by about 7.5mm, the front side and the rear side of the spike face the main direction of the road vehicle, light emitted by the F5 type straw hat lamp beads is concentrated through a lens, and then emitted out of the main direction of the road vehicle by upwards displacement delta H (approximately 3.8 mm) after secondary refraction of the inner wall and the outer wall, so that the embedded active light-emitting spike can emit light in a certain period and duty ratio in a stroboscopic manner or normally-bright manner.
Example six:
An underground active light-emitting spike comprises a transparent shell six (610), an LED light-emitting body six (621) (622), a long afterglow light-emitting body, a separation body six (630), an air layer six (640), a containing cavity six (650), a metal protection gland six (661), a bottom shell six (662) and an external connection waterproof wire five, as shown in figures 32-35.
Transparent case six (610):
the transparent shell six (610) is a transparent PC shell and is shaped like a back-off transparent ashtray. The lower part of the cover is a petal-shaped cylinder, the top of the cover is provided with two square upper protrusions corresponding to square window openings on the metal protective gland six (661), the sides of the square upper protrusions in the forward direction and the back direction are provided with a pair of opposite inclined planes with the height difference of 6mm and the thickness of 10mm, the outer inclined planes six (610 a) and the inner inclined planes six (610 b) of the inclined planes are parallel to each other and form an included angle of 45 degrees with the top surface, the opposite inner inclined planes six (610 b) are provided with a containing groove six (610 c) which is provided with 5 connected bodies and is arrayed, the top of the containing groove six (610 c) is arched, and the width of the containing groove six (610 c) is 3mm away from the top surface of the transparent shell six (610).
The center of the inner top wall of the transparent shell six (610) is surrounded by a convex rib to form a square groove as a containing cavity six (650).
LED luminary six (621) (622):
The six LED straw hat lamp beads (621) are F5 straw hat lamp beads with phi=5 mm, 5 straw hat lamp beads are arranged in an array and welded on a strip-shaped circuit board, metal pins are bent for 90 degrees to enable the direction of an optical axis of the metal pins to be parallel to the circuit board, then the circuit board welded with the six LED straw hat lamp beads (621) is arranged in the six accommodating grooves (610 c) through a limiting structure, the distance between the F5 straw hat lamp beads and the top wall of the six accommodating grooves (610 c) is 0.6mm, the main luminous direction of the straw hat lamp beads is parallel to the bottom surface of a spike and is opposite to the direction of the corresponding six inner inclined planes (610 b), and the half-value angle of the straw hat lamp beads after passing through a primary lens is 10 degrees.
The six (622) surface mount LEDs are arranged in a lattice and welded on a square circuit board, the preformed sheet of the long afterglow luminous body is solidified in the six (650) containing cavity in the square upper convex part through the light guide adhesive, and then the circuit board welded with the six (622) surface mount LEDs is arranged below the long afterglow luminous body.
Separator six (630):
The partition body six (630) is served as a circuit board welded with the LED straw hat lamp beads six (621), is fixed below the containing groove six (610 c) through a limiting structure and adhesive, and forms a sealed air layer six (640) with the containing groove six (610 c). The circuit board can be welded with a single chip microcomputer control circuit.
The LED light distribution outgoing structure combined by the elements becomes a local structure of the spike.
Six metal protective gland (661):
The metal protective gland six (661) is a round cast aluminum gland with a raised top, rectangular openings are arranged at the front side and the rear side of the metal protective gland, and two square windows are arranged in the middle of the metal protective gland; during installation, the metal protection gland six (661) is pressed on the top of the transparent shell six (610), two square upper protrusions of the transparent shell six (610) are just embedded into the middle square open window of the transparent shell six (610), the set of opposite inclined planes in the forward direction and the back direction of the transparent shell six (610) just correspond to rectangular openings on the front side and the back side of the transparent shell six (610), and at the moment, the top of the LED light distribution emergent structure is covered by a cross beam with the thickness of 3mm of the metal protection gland six (661).
Bottom case six (662):
the bottom shell six (662) is a cast aluminum cavity shell with an accommodating cavity, an upward opening and a large upper part and a small lower part.
Inverting the transparent shell six (610), embedding a long afterglow luminous body, fixing a circuit board, connecting a waterproof wire from the circuit board, pre-packaging the circuit board and the inner wall of the transparent shell six (610) by using silicone adhesive or hot melt adhesive, pouring epoxy resin into the bottom opening of the transparent shell six (610) to a certain height from the bottom surface of the transparent shell six (610) and solidifying to obtain a luminous liner with a cable accommodating cavity at the bottom, penetrating the externally connected waterproof wire through threading holes on the left side and the right side of the bottom shell six (662) in a cable accommodating groove at the lower part of the luminous liner to be connected with the waterproof wire connected with the luminous liner, filling a gasket in the accommodating cavity of the bottom shell six (662), embedding the luminous liner into the top opening of the bottom shell six (662) according to the clearance fit of a required tolerance range, covering the metal protecting gland six (661), and fixedly packaging by using structural adhesive or fasteners to form a spike whole surrounded by the metal protecting gland six (661) and the bottom shell six (662).
The embedded active light-emitting spike is characterized in that the edge of a main body embedded into a road surface to a bottom shell is flush with the road surface, the top of the spike protrudes out of the ground by about 9mm, the front side and the rear side of the spike face the main direction of road vehicle advancing, light emitted by an F5 type straw hat lamp bead is concentrated through a lens, and then is emitted in the main direction of road vehicle advancing by upward displacement delta H (approximately 3.6 mm) after secondary refraction of the inner wall and the outer wall, so that the embedded active light-emitting spike can emit light in a certain period and duty ratio in a stroboscopic manner or always-bright manner, has the advantages of high intensity ratio of horizontal light emission, high identification degree, good light-emitting effect on a motor vehicle driver, strong compression resistance and impact resistance, high structural strength, easiness in controlling light-emitting angle and the like, and can provide weak light illumination or induction for pedestrians and non-motor vehicle drivers through long afterglow light emitters by LEDs at certain period and duty ratio stroboscopic light emission, and the LED light distribution structure is symmetrically positioned on the front side and the rear side of the spike top, and the LED light distribution structure can be used as a unidirectional light-emitting spike.
The foregoing description is only a preferred embodiment of the present invention and is not intended to limit the invention, but various modifications, alterations, combinations, stacks, equivalents, etc. can be made within the spirit and principles of the invention, or the application of the technology to the relevant and similar fields should be considered as being within the scope of the invention.
Claims (32)
1. The utility model provides a LED grading exit structure, LED grading exit structure include for transparent casing (1), have condenser lens's LED luminous body (2), separator (3), air bed (4), its characterized in that:
The transparent shell (1) is a transparent shell with a local height difference structure, a main body with a certain thickness at the top and the top is in a plane or is close to the plane, a containing cavity with a downward opening is arranged, the refractive index n is between 1.45 and 2.1, an inwards-sunk containing groove (1 c) is arranged on the inner bottom surface of the top of the transparent shell (1) and is used as a light-emitting groove, at least one end of the inner wall of the containing groove (1 c) is provided with a light-in surface (1 b) with a certain height (H3) and a certain inclination angle (theta 1) for light incidence, the outer surface of the shell at the position corresponding to the light-in surface (1 b) is a light-out surface (1 a) with a certain height (H2) and an inclination angle (theta 2) for light emergence, and a sufficient average width (W) is arranged between the light-in surface (1 b) and the light-out surface (1 a);
The LED luminous body (2) is arranged in the accommodating groove (1 c), the main beam in the normal direction after being condensed by the condensing lens is in an elevation angle (theta 3), and a certain incidence angle is formed on the light incident surface (1 b); a separator (3) is arranged around the LED luminous body (2), and an air layer (4) is formed at least between the LED luminous body (2) and the light incident surface (1 b); the LED luminous body (2) is packaged in the transparent shell (1) through the separator (3) to form a specific optical structure with mutually matched LED luminous parameters, optical path transmission and optical structure parameters and combined with a forming structure to complete light distribution design;
The optical structure is an LED light distribution outgoing structure which is characterized in that light emitted by an LED light emitting body (2) is mainly focused by a condensing lens, a main light beam in the normal direction forms a light emitting center in the horizontal direction or forms a small angle elevation angle (theta 3) with the horizontal direction, is incident in a first refraction mode from a light incoming surface (1 b) of a first inclination angle (theta 1) on a transparent shell (1), is transmitted through the side wall of the transparent shell (1) with a certain width W, is refracted for a second time from a light outgoing surface (1 a) of a second inclination angle (theta 2) on the transparent shell (1) so as to achieve upward displacement (delta H) of a target value required by the design of the main light beam, and the outgoing point of the main light beam in the normal direction falls on the position of the middle position of the light outgoing surface (1 a) to form a light emitting center in the horizontal direction, so as to achieve space optimization distribution with high total outgoing efficiency of outgoing light, and achieve the required physical indexes such as structural strength, structural height difference limitation, waterproof function and the like.
2. The LED light distribution exit structure according to claim 1, wherein: the light incident surface (1 b) is an inclined plane light incident surface (1 ba) or an arc surface or spherical surface or free curved surface light incident surface (1 bb), and the light emergent surface (1 a) is an inclined plane light emergent surface (1 aa) or an arc surface or spherical surface or free curved surface light emergent surface (1 ab).
3. The LED light distribution exit structure according to claim 1, wherein: the light incident surface (1 b) is an inclined surface light incident surface (1 ba) or an arc surface or a spherical surface or free-form surface light incident surface (1 bb), the light emergent surface (1 a) is an arc surface or a spherical surface or free-form surface light emergent surface (1 ab), and the curvature of the light incident surface (1 b) is smaller than that of the light emergent surface (1 a), so that the light emergent surface and the light emergent surface form a shape with a light condensing function.
4. The LED light distribution exit structure according to claim 1, wherein: the light incident surface (1 b) is an inclined plane light incident surface (1 ba), and the light emergent surface (1 a) is an inclined plane light emergent surface (1 aa) or a cambered surface or spherical surface or free-form surface light emergent surface (1 ab).
5. The LED light distribution exit structure according to claim 1, wherein: when the LED luminous body (2) emits light, a main light beam in the normal direction and the light emitting surface (1 a) are intersected to form a luminous center near the center point of the light emitting surface (1 a) and emit light in the horizontal direction, and the LED luminous body (2) emits light in the horizontal direction to form a complete luminous spot with a larger area, wherein the diameter of the complete luminous spot is larger than or equal to the diameter (phi) of a condensing lens of the LED luminous body (2) and smaller than or equal to the height (H2) of the light emitting surface (1 a), on the light emitting surface (1 a).
6. The LED light distribution exit structure according to claim 1, wherein: the inclination angle (theta 1) of the light incident surface (1 b), the inclination angle (theta 2) of the light emergent surface (1 a), the elevation angle (theta 3) of the main light beam in the normal direction of the LED luminous body (2) after being condensed by the condensing lens and the horizontal width (W) of the side wall at the middle position of the light emergent surface (1 a) enable the main light beam of the LED luminous body (2) to generate upward displacement (delta H), the diameter (phi) of the condensing lens of the LED luminous body (2), the thickness (H1) from the highest point of the top of the accommodating groove (1 c) to the top surface of the transparent shell (1), the height (H2) of the light emergent surface (1 a) and the distance (H4) between the LED luminous body (2) and the top wall of the accommodating groove (110 c) thereof are as follows: H1+H2.gtoreq.ΔH1+H2+Φ -H2, or H2- Φ/2.gtoreq.ΔH.gtoreq.Φ/2.
7. The LED light distribution exit structure according to claim 1, wherein: the structure of the transparent shell (1) meets the following conditions:
The first inclination angle (theta 1) of the light incident surface (1 b) is an acute angle, and the second inclination angle (theta 2) of the light emergent surface (1 a) is an acute angle, wherein the angle of 85 degrees is more than or equal to theta 1 and more than or equal to theta 2 and more than or equal to 18 degrees, and the angle of 30 degrees is more than or equal to theta 1-theta 2 and more than or equal to 0 degree;
The elevation angle (theta 3) of the main light beam in the normal direction after the LED luminous body (2) is condensed by the condensing lens is more than or equal to 30 degrees and more than or equal to 0 degrees, and the half value angle theta 1/2 of the light intensity after the LED luminous body (2) is condensed by the condensing lens is more than or equal to 30 degrees
θ1/2≥5°；
Or the elevation angle (theta 3) of the main light beam in the normal direction after the LED luminous body (2) is condensed by the condensing lens and the half-value angle theta 1/2 of the light intensity of the LED luminous body (2) after the LED luminous body passes through the condensing lens satisfy the following conditions: and theta 1/2 is more than or equal to theta 3 is more than or equal to 0 degrees.
8. The LED light distribution exit structure according to claim 1, wherein: the thickness (H1) from the highest point of the top of the accommodating groove (1 c) to the top surface of the transparent shell (1) is as follows: w2 is more than or equal to 20mm, W1 is more than or equal to 2H1 is more than or equal to 6mm;
the distance between the LED luminous body (2) and the top wall of the accommodating groove (110 c) is 1/5 of the diameter (phi) of the condensing lens of the LED luminous body (2);
The diameter (phi) of the condensing lens of the LED luminous body (2), the height (H2) of the light emergent surface (1 a) and the height (H3) of the light incident surface (1 b) meet the following conditions: h2 phi 10mm or more, H3 phi 12mm or more, and phi 10mm or more, 3mm or more.
9. The LED light distribution exit structure according to claim 1, wherein: the light emergent surface (1 a) of the transparent shell (1) is an inclined surface or an arc surface;
the elevation angle (theta 3) of the main beam in the normal direction of the emergent light of the LED luminous body (2) in incidence at a small angle elevation angle (theta 3) meets the following conditions: the angle of inclination I (theta 1) of the light incident surface (1 b) is more than or equal to 30 degrees and more than or equal to theta 3 and more than or equal to 0 degrees, the angle of inclination II (theta 2) of the light emergent surface (1 a) meets the requirements that theta 1 is more than or equal to theta 2, and the angle of inclination I (theta 1), the angle of inclination II (theta 2) are matched with the horizontal width of the side wall at the middle position of the light emergent surface (1 a), so that the three conditions are met: the main light beam in the normal direction of the LED luminous body (2) is refracted through the light incident surface or/and the light emergent surface, then generates upward displacement and is emitted along the horizontal direction;
Or the inclination angle (theta 1) of the light incident surface (1 b), the inclination angle (theta 2) of the light emergent surface (1 a), the elevation angle (theta 3) of the main beam in the light normal direction emitted by the LED luminous body (2) and the refractive index n of the transparent shell (1) satisfy the following conditions: n 2·sin2(θ1-θ2)＝cos2(θ1+θ3)+cos2 theta 2-2 cos theta 2 cos (theta 1+ theta 3) cos (theta 1-theta 2), and the LED emits light, which is refracted, then is upwardly displaced and is emitted in the horizontal direction.
10. The LED light distribution exit structure according to claim 1, wherein: the light emergent surface (1 a) of the transparent shell (1) is an inclined surface or an arc surface;
The main beam in the normal direction of the emergent light of the LED luminous body (2) vertically enters along the light incident surface, is refracted and deflected by the light emergent surface, generates upward displacement and is emergent along the horizontal direction;
Or the inclination angle (theta 1) of the light incident surface (1 b), the inclination angle (theta 2) of the light emergent surface (1 a), the elevation angle (theta 3) of the main beam in the light normal direction emitted by the LED luminous body (2) and the refractive index n of the transparent shell (1) satisfy the following conditions: 30 DEG or more, theta 3 or more, 7.5 DEG, theta 1 = 90 DEG-theta 3,
cosθ2·(n·cosθ3-1)＝n·sinθ2·sinθ3，
After the incident light vertically enters the light incident surface, the incident light is refracted and deflected by the light emergent surface to generate upward displacement and is emitted along the horizontal direction.
11. The LED light distribution exit structure according to claim 1, wherein: the light emergent surface (1 a) of the transparent shell (1) is an inclined surface or an arc surface;
the main beam in the normal direction of the emergent light of the LED luminous body (2) enters along the horizontal direction, is refracted by the light incident surface (1 b) and the light emergent surface (1 a) with the same inclination angle, generates upward displacement (delta H) and is emergent along the horizontal direction;
or the inclination angle (theta 1) of the light incident surface (1 b), the inclination angle (theta 2) of the light emergent surface (1 a) and the elevation angle (theta 3) of the main beam in the light emergent normal direction of the LED luminous body (2) satisfy the following conditions:
θ3=0°,60 ° is greater than or equal to θ1=θ2 is greater than or equal to 30 °, so that incident light horizontally enters the light incident surface, is refracted and deflected by the light emergent surface, generates upward displacement (Δh), and exits along the horizontal direction;
The upward displacement amount delta H=W1.sin theta 1.cos theta 1 [1-sin theta 1/(n 2-cos2θ1)1/2 ], the upward displacement (delta H), the diameter (phi) of the condensing lens of the LED luminous body (2), the height (H2) of the light emitting surface (1 a) and the distance (H4) between the LED luminous body (2) and the top wall of the accommodating groove (110 c) thereof meet the condition that H2-phi/2 is more than or equal to delta H is more than or equal to phi/2.
12. The LED light distribution exit structure according to claim 1, wherein: the light-emitting surface (1 a) is a cambered surface, and the ratio of the cambered height to the cambered span is between 1:12 and 1:4.
13. The LED light distribution exit structure according to claim 1, wherein: the LED luminous body (2) emits light from the outer surface of the transparent shell (1) in the light intensity ratio of the horizontal direction to the upward direction of 3:1-12:1.
14. The LED light distribution exit structure according to claim 1, wherein: the transparent shell (1) is an injection molding shell, and the inner wall of the transparent shell (1) is a structure beneficial to an injection molding process; the thickness of the wall of the injection molding shell is between 3mm and 15 mm.
15. The LED light distribution exit structure according to claim 1, wherein: a gap (1 d) which is beneficial to injection molding is formed in a thicker part between the light incident surface (1 b) and the light emergent surface (1 a) of the transparent shell (1), and a transparent light guide glue curing molding substance which has a refractive index similar to that of a shell material is arranged in the gap (1 d).
16. The LED light distribution exit structure according to claim 1, wherein: the accommodating groove (1 c) is an accommodating groove with an inverted U-shaped or lower open trapezoid cross section along the light emergent direction, or an accommodating groove with a lower open trapezoid or inverted V-shaped longitudinal section along the light emergent direction, or a plurality of accommodating groove units with an inverted U-shaped or lower open trapezoid cross section along the light emergent direction are arranged into an array type accommodating groove, or a plurality of accommodating groove units with a lower open trapezoid or inverted V-shaped longitudinal section along the light emergent direction are arranged into an array type accommodating groove.
17. The LED light distribution exit structure according to claim 1, wherein: the width of the accommodating groove is 2 times that of the diameter (phi) of the condensing lens of the LED luminous body (2) and 1 time that of the condensing lens of the LED luminous body (2) are provided with a single LED luminous body in the accommodating groove (1 c), or the width of the accommodating groove is more than or equal to 2 times that of the diameter (phi) of the condensing lens of the LED luminous body (2) and two or more LED luminous bodies with LED luminous units arranged in an array are arranged in the accommodating groove (1 c).
18. The LED light distribution exit structure according to claim 1, wherein: the accommodating groove with the width larger than or equal to 2 times of the diameter (phi) of the condensing lens of the LED luminous body (2) is also internally provided with a transparent separator.
19. The LED light distribution exit structure according to claim 1, wherein: the condensing lens carried by the LED luminous body (2) is a primary condensing lens integrally packaged with the LED or a secondary condensing lens assembled secondarily.
20. The LED light distribution exit structure according to claim 1, wherein: the LED luminous body (2) is a pin type vertically packaged LED cylindrical lamp bead with a primary condensing lens at the top or a patch LED with a condensing lens.
21. The LED light distribution exit structure according to claim 1, wherein: a reflecting layer (6) which reflects upwards is arranged below the LED luminous body (2), and the reflecting layer (6) is a white printing layer or a coated reflecting sheet on the circuit board; or a light diffusion layer is arranged above the LED luminous body (2); or a long afterglow luminescent layer is arranged above the LED luminescent body (2).
22. The LED light distribution exit structure of claim 1, wherein: the transparent shell (1) is provided with a long afterglow luminous body capable of being excited by LED light, or the accommodating groove (1 c) of the transparent shell (1) is also internally provided with a long afterglow luminous body capable of being excited by LED light, or the LED luminous body (2) is provided with a long afterglow luminous body capable of being excited by LED light; thereby forming the LED light distribution emergent structure with the long afterglow luminous function.
23. A light emitting spike with the LED light distribution exit structure of claim 1, characterized in that: the LED luminous body (2) and other accessories are packaged in the transparent shell (1) to form luminous spikes, or the LED luminous body (2) is packaged in the transparent shell (1) to form a luminous inner container with an LED light distribution emergent structure, and the luminous inner container and the protective shell (5) are combined into the luminous spikes with the luminous inner container partially surrounded by the protective shell (5) and partially exposed at the top of the transparent shell (1) through packaging glue or fasteners; the LED light distribution emergent structures are symmetrically arranged at the front side and the rear side of the top of the spike, the positions are structures with emergent light main luminous directions respectively emitting light in forward directions and backward directions, or the LED light distribution emergent structures are arranged at the front side of the top of the spike, and the positions are structures with emergent light main luminous directions emitting light in forward directions in one direction; or the LED light distribution emergent structures are symmetrically arranged at the left side and the right side of the top of the spike, the positions are structures with emergent light main luminous directions respectively emitting light in forward directions and backward directions, or the LED light distribution emergent structures are arranged at the left side and the right side of the top of the spike, and the positions are structures with emergent light main luminous directions emitting light in forward directions and in one direction.
24. The luminescent spike of claim 23 with the LED light distribution exit structure of claim 1, wherein: the transparent shell (1) is internally provided with a long-afterglow illuminant which can be excited by LED light, thereby forming a luminous spike with long-afterglow luminous function.
25. The luminescent spike of claim 23 with the LED light distribution exit structure of claim 1, wherein: a solar photovoltaic module is arranged in the accommodating cavity between the front LED light distribution emergent structure and the rear LED light distribution emergent structure of the transparent shell (1), the solar photovoltaic module is connected with a control circuit, and the control circuit is also connected with the LED luminous body (2) and the energy storage element through circuits respectively;
The solar photovoltaic module, the LED luminous body (2), the control circuit and the energy storage element are packaged in the transparent shell (1) through packaging glue or a fastener to form a solar luminous spike;
Or the solar photovoltaic module, the LED luminous body (2), the control circuit and the energy storage element are packaged in the transparent shell (1) through packaging glue or a fastener to form a luminous inner container with an LED light distribution emergent structure, and the luminous inner container and the protective shell (5) are combined into a solar luminous spike with the luminous inner container being partially surrounded by the protective shell (5) and the top part of the transparent shell (1) being exposed through the packaging glue or the fastener.
26. The luminescent spike of claim 23 with the LED light distribution exit structure of claim 1, wherein: the LED luminous body (2) is electrically connected with the outside through an external lead; the LED luminous body (2) and other accessories are packaged in the transparent shell (1) through packaging glue or a fastener to form an active luminous spike; or the LED luminous body (2) and other accessories are packaged in the transparent shell (1) through packaging glue or a fastener to form a luminous inner container with an LED light distribution emergent structure, and the luminous inner container and the protective shell (5) are combined into an active luminous spike which is partially surrounded by the protective shell (5) and is exposed out of the top part of the transparent shell (1) through the packaging glue or the fastener;
Or a long afterglow illuminant which can be excited by LED light is also arranged in the accommodating groove of the transparent shell (1), and the LED illuminant (2) is electrically connected with the outside through an external lead; the LED luminous body (2), the long-afterglow luminous body and other accessories are packaged in the transparent shell (1) through packaging glue or a fastener to form an active luminous spike with the long-afterglow luminous function; or the LED luminous body (2), the long-afterglow luminous body and other accessories are packaged in the transparent shell (1) through packaging glue or a fastener to form a luminous inner container which is provided with an LED light distribution emergent structure and has long-afterglow luminous function, and the luminous inner container and the protective shell (5) are combined into an active luminous spike which is partially surrounded by the protective shell (5) through the packaging glue or the fastener, is exposed at the top part of the transparent shell (1) and has long-afterglow luminous function.
27. The luminescent spike of claim 23 with the LED light distribution exit structure of claim 1, wherein: and a metal protection gland is arranged above the LED light distribution emergent structure, or a protection body is arranged around the LED light distribution emergent structure.
28. The luminescent spike of claim 23 with the LED light distribution exit structure of claim 1, wherein: the transparent shell (1) or the protective shell (5) is also provided with a retro-reflector to form the luminous and reflective spike.
29. The solar-powered luminescent spike of claim 25 wherein: the solar photovoltaic module is characterized in that the transparent shell (1) is a transparent shell which is provided with forward and backward opposite inclined planes, is symmetrical in front-back and left-right directions and is generally rectangular at the top, and the solar photovoltaic module is arranged in the middle of the top shell of the transparent shell (1); the left side and the right side of the solar photovoltaic module are symmetrically provided with accommodating grooves with inverted U-shaped cross sections, and the LED luminous bodies (2) are arranged below reflecting surfaces (1 a) with the inverted U-shaped cross sections, so that an LED light distribution emergent structure with emergent light emitting directions along the forward direction of the spike or along the forward direction and the backward direction of the spike is formed; the forward and backward inclined planes of the transparent shell (1) are also provided with a retro-reflector, a control circuit and an energy storage element are also arranged in the accommodating cavity of the transparent shell (1), and the solar photovoltaic module, the LED luminous body (2) and the energy storage element are respectively connected with the control circuit through circuits; the solar photovoltaic module, the LED luminous body (2), the control circuit and the energy storage element are packaged in the transparent shell (1) through packaging glue or a fastener to form a convex solar luminous reflecting spike, or the solar photovoltaic module, the LED luminous body (2), the control circuit and the energy storage element are packaged in the transparent shell (1) through packaging glue or the fastener to form a luminous inner container with an LED light distribution emergent structure, and the luminous inner container and the protective shell (5) with a slope on the side part are combined into the convex solar luminous reflecting spike, wherein the luminous inner container is partially surrounded by the protective shell (5) and the top part of the transparent shell (1) is partially exposed through the packaging glue or the fastener.
30. The solar-powered luminescent spike of claim 25 wherein: the transparent shell (1) is a luminous liner shell with a raised top, the forward and backward side parts of the raised top are provided with forward and backward opposite inclined planes, and the solar photovoltaic module is arranged below the middle part of the top shell of the luminous liner shell; the front side and the rear side of the solar photovoltaic module are provided with inclined planes with inverted U-shaped accommodating grooves in cross sections and facing the forward direction and the backward direction, the LED luminous bodies (2) are a plurality of LED rows arranged in a linear array below a reflecting surface (1 a) with the inverted U-shaped accommodating grooves in cross sections, and an LED light distribution emergent structure with emergent light emitting directions along the forward direction of the spike or along the forward direction and the backward direction of the spike is formed; a control circuit and an energy storage element are also arranged in the accommodating cavity of the transparent shell (1), and the solar photovoltaic module, the LED luminous body (2) and the energy storage element are respectively connected with the control circuit through circuits; the solar photovoltaic module, the LED luminous body (2), the control circuit and the energy storage element are packaged in the transparent shell (1) through packaging glue to form a luminous inner container with an LED light distribution emergent structure, the protective shell (5) is formed by combining a metal bottom shell with an upward cavity and a top cover with an opening in the middle, and the luminous inner container is locked in the protective shell (5) and combined into an underground solar luminous spike with the luminous inner container being partially surrounded by the protective shell (5) and partially exposed at the top of the transparent shell (1) through packaging glue or a fastener.
31. The actively illuminated spike of claim 26 wherein: the transparent shell (1) is a luminous liner shell with a raised top, and the forward and backward side parts of the raised top are provided with forward and backward opposite inclined planes; the LED luminous body (2) is a plurality of LEDs arranged in a linear array below a reflecting surface (1 a) with the inverted U-shaped accommodating grooves in the cross section, so that an LED light distribution emergent structure with emergent light main luminous direction emitting light along the forward direction of the spike or emitting light along the forward direction and the backward direction of the spike is formed; the LED luminous body (2) is electrically connected with the outside through an external lead; the LED luminous body (2) and other accessories are packaged in the transparent shell (1) through packaging glue or a fastener to form a luminous inner container with an LED light distribution emergent structure, the protective shell (5) is formed by combining a metal bottom shell with an upward cavity and a top cover with an opening in the middle, and the luminous inner container is locked in the protective shell (5) and combined into an underground active luminous spike which is partially surrounded by the protective shell (5) and partially exposed at the top of the transparent shell (1) through the packaging glue or the fastener.
32. The actively illuminated spike of claim 26 wherein: the transparent shell (1) is a wide cross-shaped transparent shell with a symmetrical top, the LED luminous body (2) and other accessories are packaged in the transparent shell (1) through packaging glue or fasteners to form a luminous inner container with LED light distribution emergent structures on the left side and the right side and emergent light main luminous directions of the luminous inner container emitting light along the forward direction and the backward direction, the protective shell (5) is formed by combining a metal bottom shell with an upward cavity and a symmetrical top cover with an upward protruding protective body and a wide cross-shaped opening in the middle part, and the luminous inner container is locked in the protective shell (5) and combined into a solar luminous spike or an active luminous spike with the luminous inner container being partially surrounded by the protective shell (5) through packaging glue or fasteners.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020102876805 | 2020-04-13 | ||
| CN202010287680.5A CN111256048A (en) | 2020-04-13 | 2020-04-13 | LED light emergent structure and luminous spike with same |
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| Publication Number | Publication Date |
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| CN111561666A CN111561666A (en) | 2020-08-21 |
| CN111561666B true CN111561666B (en) | 2024-05-07 |
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| CN202010287680.5A Withdrawn CN111256048A (en) | 2020-04-13 | 2020-04-13 | LED light emergent structure and luminous spike with same |
| CN202010549722.8A Active CN111561666B (en) | 2020-04-13 | 2020-06-16 | LED light distribution emergent structure and luminous spike with same |
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| CN202010287680.5A Withdrawn CN111256048A (en) | 2020-04-13 | 2020-04-13 | LED light emergent structure and luminous spike with same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111550738B (en) * | 2020-06-11 | 2023-10-10 | 方鸣 | LED reflection light distribution emergent structure and luminous spike comprising same |
| CN113587007B (en) * | 2021-08-02 | 2023-06-02 | 深圳市裕富照明有限公司 | Lighting equipment capable of lighting upwards |
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| Publication number | Publication date |
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| CN111256048A (en) | 2020-06-09 |
| CN111561666A (en) | 2020-08-21 |
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