Vehicle lamp structure

Disclosed is a vehicle lamp structure including a lamp cup structure and a light-emitting structure. The lamp cup structure has a first light-reflecting surface and a second light-reflecting surface. The first light-reflecting surface has a first focal point and a second focal point. The second light-reflecting surface has a third focal point and a fourth focal point. The light-emitting structure includes a first light-emitting element and a second light-emitting element. The first light-emitting element corresponds to the first focal point. The second light-emitting element corresponds to the third focal point. The first light-emitting element generates a first light source projected onto the first light-reflecting surface to form a first reflection light source through the second focal point. The second light-emitting element generates a second light source projected onto the second light-reflecting surface to form a second reflection light source through the fourth focal point.

TECHNICAL FIELD

The present disclosure relates to a vehicle lamp structure, and in particular, to a vehicle lamp structure having multiple optical axes.

BACKGROUND ART

Light-emitting modules of conventional vehicle headlamps may be classified into tungsten halogen lamps and High Intensity Discharge (HID) lamps, where the tungsten halogen lamp has an arc length of 5.6 mm and the HID lamp has an arc length of 4.3 mm. In order to match with traditional illumination lamp sources, a Projector Ellipsoid System (PES) is most often used as a light-focusing system, where a lamp cup has the characteristic of a single optical axis and a single light-emitting module. At present, in order to match the arc lengths and sizes of a tungsten halogen lamp and an HID lamp, a light-emitting diode module disposed in the vehicle headlight adopts a continuous light-emitting diode packaging process. Further, because a single elliptical lamp cup only has a single focal point, only a single light-emitting diode can be used. Therefore, light-emitting diodes having a size of 1 mm×1 mm are most often adopted as the base of package at present. The continuous light-emitting diode packaging process means that light-emitting diodes are packaged on a same silicon substrate through a eutectic process or another process, so that the distance between the edges of the light-emitting diodes may be 0.1 mm and may even be as small as 0.05 mm. Because the space between the light-emitting diodes is small, the light-emitting diodes may be regarded as a single light source. However, with the same brightness, the cost of the continuous light-emitting diode package is at least 10 times more than a common light-emitting diode manufactured through a common process.

Meanwhile, referring toFIG. 1, a common light-emitting diode has a large package size and cannot be packaged and be used as a single light source. The light-emitting diodes L1, L2, L3, and L4are mounted on a Metal Core Printed Circuit Board (MCPCB). Generally, a minimum edge distance R1of the light-emitting diodes L1, L2, L3, and L4is 0.15 mm to 0.2 mm. A minimum weldable spacing R2of the light-emitting diodes L1, L2, L3, and L4in a tin soldering process is 0.1 mm to 0.2 mm. Therefore, if common illumination light-emitting diodes each having a size of 1 mm×1 mm are discretely arranged and the distance R between adjacent ones in the light-emitting diodes L1, L2, L3, and L4is 0.5 mm, multiple light sources are thus formed, thus failing to meet the regulatory requirements.

SUMMARY OF INVENTION

In view of the above problems, the present disclosure provides a vehicle lamp structure adopting a discontinuous light-emitting module, through the design of a lamp cup, which is adapted for a vehicle lamp structure adapting multiple discontinuous light-emitting diodes, so that the problems in the prior art are avoided, relevant regulations such as ECE R112 in the Regulations of United Nations Economic Commission for Europe (called ECE regulations for short) are met, and the manufacturing cost is reduced.

In order to achieve the above objective, an embodiment of the present disclosure provides a vehicle lamp structure including a lamp cup structure and a light-emitting structure. The lamp cup structure has a first light-reflecting surface and a second light-reflecting surface, where the first light-reflecting surface has a first focal point and a second focal point, the second light-reflecting surface has a third focal point and a fourth focal point, and the second focal point and the fourth focal point converge with each other. The light-emitting structure includes a first light-emitting module and a second light-emitting module, where the first light-emitting module includes at least one first light-emitting element for generating a first light source, and the second light-emitting module includes at least one second light-emitting element for generating a second light source. The first light-reflecting surface and the second light-reflecting surface are separated from each other at a predetermined distance, the at least one of the first light-emitting element corresponds to the first focal point, and the at least one of the second light-emitting element corresponds to the third focal point. The first light source generated by the at least one first light-emitting element is projected onto the first light-reflecting surface to form a first reflection light source through the second focal point and the second light source generated by the at least one second light-emitting element is projected onto the second light-reflecting surface to form a second reflection light source through the fourth focal point.

Another embodiment of the present disclosure provides a lamp cup structure including a first light-reflecting surface and a second light-reflecting surface. The first light-reflecting surface has a first focal point and a second focal point, where the first focal point and the second focal point are located on a first optical axis. The second light-reflecting surface has a third focal point and a fourth focal point, where the third focal point and the fourth focal point are located on a second optical axis. The first light-reflecting surface and the second light-reflecting surface are separated from each other at a predetermined distance, the second focal point and the fourth focal point converge with each other, and the first optical axis and the second optical axis intersect with each other on a position where the second focal point and the fourth focal point converge with each other.

Another embodiment of the present disclosure provides a vehicle lamp structure including a lamp cup structure, a light-emitting structure, and a reflecting mirror. The lamp cup structure has a first light-focusing curved surface and a second light-focusing curved surface connected to the first light-focusing curved surface, where the first light-focusing curved surface has a first focal point and a second focal point, the second light-focusing curved surface has a third focal point and a fourth focal point, and the second focal point and the fourth focal point converge with each other. The light-emitting structure includes a first light-emitting module and a second light-emitting module, where the first light-emitting module includes at least one first light-emitting element for generating a first light source, and the second light-emitting module includes at least one second light-emitting element for generating a second light source. The at least one of the first light-emitting element corresponds to the first focal point, and the at least one of the second light-emitting element corresponds to the third focal point. The reflecting mirror is disposed between the first light-emitting module and the second light-emitting module immediately adjacent to the second light-emitting module. The first light source generated by the at least one first light-emitting element is projected onto the first light-focusing curved surface to form a first reflection light source through the second focal point, one part of the second light source generated by the at least one second light-emitting element is directly projected onto the second light-focusing curved surface to form a second reflection light source through the fourth focal point, and the other part of the second light source generated by the at least one second light-emitting element is successively reflected by the reflecting mirror and the second light-focusing curved surface to form a third reflection light source through the fourth focal point.

The beneficial effects of the present disclosure are in that, through the design of the lamp cup, the vehicle lamp structure provided by embodiments of the present disclosure is adapted for a vehicle lamp structure with discontinuous light-emitting modules, so that the problems in the prior art are avoided, relevant regulations such as ECE R112 in the Regulations of United Nations Economic Commission for Europe (called ECE regulations for short) are met, and the manufacturing cost is reduced.

In order to further understand the features and technical content of the present disclosure, reference may be made to the following detailed description and accompanying drawings of the present disclosure. However, the accompanying drawings are only provided for reference and illustration, but not are intended to limit the present disclosure.

DESCRIPTION OF THE EMBODIMENTS

First Embodiment

Firstly, referring toFIG. 2AtoFIG. 2D, a first embodiment of the present disclosure provides a vehicle lamp structure V, including a lamp cup structure1and a light-emitting structure2. The lamp cup structure1has a first light-reflecting surface11and a second light-reflecting surface12, where the first light-reflecting surface11has a first focal point F1and a second focal point F2, the second reflecting surface12has a third focal point F3and a fourth focal point F4, the second focal point F2and the fourth focal point F4converge with each other, and the first light-reflecting surface11and the second light-reflecting surface12may be separated from each other at a predetermined distance. For example, the first light-reflecting surface11and the second light-reflecting surface12may be of an ellipse shape. Moreover, the lamp cup structure1may further have a light-diffusing surface13(or light-spreading surface) disposed or connected between the first light-reflecting surface11and the second light-reflecting surface12, but the present disclosure is not limited thereto.

Referring toFIG. 2B, the first light-reflecting surface11may consist of a first horizontal base line111and a first vertical base line112, and the second light-reflecting surface12may consist of a second horizontal base line121and a second vertical base line122. The first horizontal base line111, the first vertical base line112, the second horizontal base line121, and the second vertical basic line122may be elliptical line segments. The first horizontal base line111and the first vertical base line112may have the common first focal point F1or second focal point F2and may also have different first focal points F1and second focal points F2. Similarly, the second horizontal base line121and the second vertical base line122may have the common third focal point F3or fourth focal point F4and may also have different third focal points F3or fourth focal points F4.

Referring toFIG. 2A, the light-emitting structure2may be disposed in the lamp cup structure1. The light-emitting structure2includes a first light-emitting module21and a second light-emitting module22. The first light-emitting module21may include multiple first light-emitting elements211for generating a first light source or may have only one first light-emitting element211. The second light-emitting module22may include multiple second light-emitting elements221for generating a second light source or may have only one second light-emitting element221. For example, the first light-emitting elements211and the second light-emitting elements221are light-emitting diodes. The first light-emitting module21and the second light-emitting module22may each adopt light-emitting diodes with different color temperatures or colored light to adjust a light source emitted by the light-emitting structure2. When the multiple first light-emitting elements211are adopted, at least one of the multiple first light-emitting elements211is arranged at the first focal point F1. When the multiple second light-emitting elements221are adopted, at least one of the multiple second light-emitting elements221is arranged at the third focal point F3. For example, at least one of the multiple first light-emitting elements211may be disposed adjacent to the first focal point F1and at least one of the multiple second light-emitting elements221may be disposed adjacent to the third focal point F3. Alternatively, at least one of the multiple first light-emitting elements211may be directly disposed at the first focal point F1and at least one of the multiple second light-emitting elements221may be directly disposed at the third focal point F3. Further, at least one of the multiple first light-emitting elements211may also be directly disposed at the first focal point F1and at least one of the multiple second light-emitting elements221may also be disposed adjacent to the third focal point F3. Therefore, the light distribution pattern and the light brightness are changed by changing the positions of the light-emitting elements and the light-reflecting surface focal points. Moreover, a control module may be used to control the turn-on or turn-off of the first light-emitting module21and the second light-emitting module22and thus control the light distribution pattern, color temperature or colored light of the light source emitted by the light-emitting structure2. It should be noted that, the first light-emitting module21and the second light-emitting module22used in the present disclosure may each have only one light-emitting element and are not limited to having multiple light-emitting elements. In addition, the first light-emitting module21and the second light-emitting module22may also be a light-emitting module L consisting of multiple light-emitting diodes formed on a same substrate.

Also referring toFIG. 2C, when the control module turns on the light-emitting structure2, the first light source generated by the at least one first light-emitting element211in the first light-emitting module21is projected onto the first light-reflecting surface11to form a first reflection light source passing through the second focal point F2and the second light source generated by the at least one second light-emitting element221in the second light-emitting module22is projected onto the second light-reflecting surface12to form a second reflection light source passing through the fourth focal point F4. In other words, because the first light-emitting element211is correspondingly disposed at the first focal point F1and the second light-emitting element221is correspondingly disposed at the third focal point F3, in combination with the curve characteristic of the light-reflecting surfaces, the first light source generated by the first light-emitting element211focuses on the second focal point F2of the first light-reflecting surface11after being reflected by the first light-reflecting surface11and the second light source generated by the second light-emitting element221focuses on the fourth focal point F4of the second light-reflecting surface12after being reflected by the second light-reflecting surface12. Moreover, the first reflection light source and the second reflection light source may be projected through a plano-convex lens which has a focal point located at the second focal point F2and the fourth focal point F4. In this case, the first light-reflecting surface11has a focusing function for the first light-emitting module21and the first light-reflecting surface11has a light-diffusing function for the second light-emitting module22. Similarly, the second light-reflecting surface12has the focusing function for the second light-emitting module22and the second light-reflecting surface12has the light-diffusing function for the first light-emitting module21. The light-diffusing surface13does not have the focusing function for the first light-emitting module21and the second light-emitting module22, but can diffuse the light generated by the first light-emitting module21and the second light-emitting module22.

As shown inFIG. 2AtoFIG. 2C, the lamp cup structure1may further include a first optical axis14and a second optical axis15. The first optical axis14passes through the first focal point F1and the second focal point F2of the first light-reflecting surface11. The second optical axis15passes through the third focal point F3and the fourth focal point F4of the second light-reflecting surface12. The first optical axis14and the second optical axis15intersect with each other on the second focal point F2and the fourth focal point F4. The first optical axis14and the second optical axis15each are respectively coplanar with the plane formed by their vertical base lines. Moreover, when the lamp cup structure1cooperates with a plano-convex lens, a focal point of which is disposed at the second focal point F2and the fourth focal point F4, so that the light source focusing on the second focal point F2and the fourth focal point F4is emitted through the plano-convex lens, where an optical axis of the plano-convex lens is located between the first optical axis14and the second optical axis15. Furthermore, a cut-off line shielding plate may be further disposed adjacent to or directly at the focal point of the plano-convex lens, or disposed adjacent to or directly at the second focal point F2and the fourth focal point F4of the lamp cup structure1.

Referring toFIG. 2D, by changing curved surfaces of the first light-reflecting surface11and the second light-reflecting surface12, the first focal point F1of the first light-reflecting surface11falls between the second light-reflecting surface12and the third focal point F3, and the third focal point F3of the second light-reflecting surface12falls between the first light-reflecting surface11and the first focal point F1. In the embodiment ofFIG. 2D, the lamp cup structure1may only have the first light-reflecting surface11and the second light-reflecting surface12, but not have the light-diffusing surface13. Moreover, when the lamp cup structure1cooperates with a plano-convex lens, a focal point of which is disposed at the second focal point F2and the fourth focal point F4, so that the light source focusing on the second focal point F2and the fourth focal point F4is emitted through the plano-convex lens, where an optical axis of the plano-convex lens is located between the first optical axis14and the second optical axis15. Furthermore, a cut-off line shielding plate may be further disposed adjacent to or directly at the focal point of the plano-convex lens, or disposed adjacent to or directly at the second focal point F2and the fourth focal point F4of the lamp cup structure1.

Also referring toFIG. 2E, a light-emitting module L shown inFIG. 2Emay be disposed in the lamp cup structure1shown inFIG. 2A, or four separate light-emitting diodes may also be disposed in the lamp cup structure1. The light-emitting module L consists of four light-emitting diodes L1, L2, L3, and L4each having a size of 1 mm×1 mm. The distance R between adjacent ones of the light-emitting diodes L1, L2, L3, and L4is 0.5 mm. The first optical axis14passes through the first focal point F1and the second focal point F2of the first light-reflecting surface11. The second optical axis15passes through the third focal point F3and the fourth focal point F4of the second light-reflecting surface12. The first optical axis14passes through the light-emitting diode L2and the second optical axis15passes along an edge of the light-emitting diode L3. Therefore, for the first light-reflecting surface11, the light-emitting diode L2generates a focused light pattern; for the second light-reflecting surface12, a diffused light pattern is generated because the second optical axis15does not pass through the light-emitting diode L2. In this embodiment, if the parameters of the first light-reflecting surface11and the second light-reflecting surface12are set as follows: the distance from a line segment vertex (not a vertex of the light-diffusing surface13) of the first light-reflecting surface11to the first focal point F1is 10 mm, the distance from a line segment vertex (not the vertex of the light-diffusing surface13) of the second light-reflecting surface12to the third focal point F3is 10 mm, the distance between the first focal point F1and the second focal point F2is 50 mm, the distance between the third focal point F3and the fourth focal point F4is 50 mm, and the length of the lamp cup structure1is 35 mm, an emitted light source can have a light pattern complying with the regulations, the illuminance and the lumens can be improved, and the bright area can be concentrated, thereby helping a dipped headlight to project to a farther distance.

Referring toFIG. 3A, the lamp cup structure1consists of multiple curved surfaces with different curvatures. For example, the first light-reflecting surface11may have multiple light-focusing curved surfaces (or light-condensing curved surface). Each of the light-focusing curved surfaces of the first reflecting surface11has a focal point. The multiple first light-emitting elements211are disposed at the multiple focal points of the light-focusing curved surfaces, respectively. The second light-reflecting surface12may have multiple light-focusing curved surfaces. Each of the light-focusing curved surfaces has a focal point. The multiple second light-emitting elements221are disposed on the multiple focal points of the light-focusing curved surfaces, respectively. Therefore, each light-focusing curved surface has a focal point and an optical axis. The optical axes of the light-focusing curved surfaces intersect on a common focal point F0. Each light-focusing curved surface has a horizontal base line and a vertical base line. The focal point of the plano-convex lens also converges with the common focal point F0.

Referring toFIG. 3B, the relationship between a cut-off line shielding plate4and the first light-reflecting surface11and the second reflecting surface12is revealed inFIG. 3B. The cut-off line shielding plate4is disposed at the second focal point F2of the first light-reflecting surface11and the fourth focal point F4of the second light-reflecting surface12. The second focal point F2and the fourth focal point F4are located at an intersection point of an H-H line and a V-V line. Therefore, the cut-off line shielding plate4will shield the second focal point F2and the fourth focal point F4. The cut-off line shielding plate4has a first horizontal portion41and a second horizontal portion42. The first horizontal portion41and the second horizontal portion42are connected through an oblique plane portion43. The first horizontal portion41is located at the right side of the V-V line. A plane (facing the direction of the lamp cup) of the first horizontal portion41converges with the H-H line or is spaced from the H-H line at a distance in a direction away from the lamp cup. The second horizontal portion42is located at the left side of the V-V line. A plane of the second horizontal portion42is located above the H-H line and shields some of the light reflected by the lamp cup structure1. The oblique plane portion43located between the first horizontal portion41and the second horizontal portion42is a turning part of the cut-off line, which deflects lights along V-V line with an angle of 165 degrees.

Referring toFIG. 4AtoFIG. 4D, different numbers of light-emitting diodes L1, L2, L3, L4, and L5are adopted in the vehicle lamp structure V and are arranged corresponding to the focal points of the first light-reflecting surface11and the second light-reflecting surface12in different ways. As shown inFIG. 4A, the light-emitting module L consists of three light-emitting diodes L1, L2, and L3each having a size of 1 mm×1 mm. The first optical axis14passes along a left side or right side edge of the light-emitting diode L1. The second optical axis15passes along a left side or right side edge of the light-emitting diode L2. The light-emitting diode L3is disposed on a central axis of the lamp cup structure1. As shown inFIG. 4B, the light-emitting module L consists of four light-emitting diodes L1, L2, L3, and L4each having a size of 1 mm×1 mm. The first optical axis14passes along a left side or right side edge of the light-emitting diode L2. The second optical axis15passes along a left side or right side edge of the light-emitting diode L3. The light-emitting diodes L1and L4may be used for the light-diffusing function. As shown inFIG. 4C, the light-emitting module L consists of four light-emitting diodes L1, L2, L3, and L4each having a size of 1 mm×1 mm. The first optical axis14passes through the light-emitting diode L2. The second optical axis15passes along a left side or right side edge of the light-emitting diode L3. The light-emitting diodes L1and L4may be used for the light-diffusing function. As shown inFIG. 4D, the light-emitting module L consists of five light-emitting diodes L1, L2, L3, L4, and L5each having a size of 1 mm×1 mm. The first optical axis14passes along a left side or right side edge of the light-emitting diode L2. The second optical axis15passes along a left side or right side edge of the light-emitting diode L3. The light-emitting diode L5is disposed on the central axis of the lamp cup structure1. The light-emitting diodes L1, L4and L5may be used for the light spreading function.

Referring toFIG. 5, the lamp cup structure1may have a first light-reflecting surface11and a second light-reflecting surface12. The first light-reflecting surface11may have a first light-focusing curved surface113and a second light-focusing curved surface114. The second light-reflecting surface12may have a third light-focusing curved surface123and a fourth light-focusing curved surface124. The first light-focusing curved surface113has a first optical axis14, the second light-focusing curved surface114has a second optical axis15, the third light-focusing curved surface123has a third optical axis16, and the fourth light-focusing curved surface124has a fourth optical axis17. Then, the light-emitting diodes L1and L2may be correspondingly disposed at a focal point of the first light-focusing curved surface113and a focal point of the third light-focusing curved surface123. For example, the first optical axis14passes through the light-emitting diode L1, the second optical axis15may pass along a left side or right side edge of the light-emitting diode L1, the third optical axis16may pass along a left side or right side edge of the light-emitting diode L2, and the fourth optical axis17may pass along the left side or right side edge of the light-emitting diode L2.

Because the curvatures of the first light-reflecting surface11and the second light-reflecting surface12in the lamp cup structure1may be designed and the light-emitting structure2may be correspondingly disposed at the focal points of the first light-reflecting surface11and the second light-reflecting surface12, the vehicle lamp structure V provided by the first embodiment of the present disclosure is especially applicable to a vehicle lamp structure V with a discontinuous light-emitting module L, so that relevant regulations such as ECE R112 in the Regulations of United Nations Economic Commission for Europe (called ECE regulations for short) are met, the manufacturing cost is reduced, and the illuminance, the lumens, and the projection distance of the light source are improved.

Second Embodiment

Referring toFIG. 2A, a second embodiment of the present disclosure provides a lamp cup structure1, including a first light-reflecting surface11and a second light-reflecting surface12. The first light-reflecting surface11has a first focal point F1and a second focal point F2. The first focal point F1and the second focal point F2are located on a first optical axis14. The second light-reflecting surface12has a third focal point F3and a fourth focal point F4. The third focal point F3and the fourth focal point F4are located on a second optical axis15. The first light-reflecting surface11and the second light-reflecting surface12may be separated from each other at a predetermined distance. The second focal point F2and the fourth focal point F4converge with each other. The first optical axis14and the second optical axis15intersect with each other on a position where the second focal point F2and the fourth focal point F4converge with each other. For example, the first light-reflecting surface11and the second light-reflecting surface12may be of an elliptical shape. Moreover, the lamp cup structure1may further have a light-diffusing surface13disposed or connected between the first light-reflecting surface11and the second light-reflecting surface12. Moreover, the lamp cup structure1may further include a first optical axis14and a second optical axis15. The first optical axis14passes through the first focal point F1and the second focal point F2of the first light-reflecting surface11. The second optical axis15passes through the third focal point F3and the fourth focal point F4of the second light-reflecting surface12. The first optical axis14and the second optical axis15intersect with each other at the second focal point F2and the fourth focal point F4. The first optical axis14and the second optical axis15each are respectively coplanar with the plane formed by their vertical base lines. However, the present disclosure is not limited thereto.

Referring toFIG. 2B, the first light-reflecting surface11may consist of a first horizontal base line111and a first vertical base line112and the second light-reflecting surface12may consist of a second horizontal base line121and a second vertical base line122. The first horizontal base line111, the first vertical base line112, the second horizontal base line121, and the second vertical base line122may be of elliptical line segments. The first horizontal base line111and the first vertical base line112may have the common first focal point F1or second focal point F2and may also have different first focal points F1and second focal points F2. Similarly, the second horizontal basic line121and the second vertical basic line122may have the common third focal point F3or fourth focal point F4and may also have different third focal points F3or fourth focal points F4.

Then, referring toFIG. 2C, light-emitting elements may be disposed in the lamp cup structure1. Therefore, the lamp cup structure1includes at least one first light-emitting element211and at least one second light-emitting element221. At least one first light-emitting element211is disposed adjacent to or directly at the first focal point F1. At least one second light-emitting element221is disposed adjacent to or directly at the third focal point F3.

Referring toFIG. 4AtoFIG. 4D, light-emitting diodes L1, L2, L3, L4, and L5may be disposed in the lamp cup structure1disclosed in the second embodiment of the present invention. Different numbers of light-emitting diodes L1, L2, L3, L4, and L5are adopted in the lamp cup structure1and are arranged corresponding to focal points of the first light-reflecting surface11and the second light-reflecting surface12in different ways. As shown inFIG. 4A, a light-emitting module L consists of three light-emitting diodes L1, L2, and L3each having a size of 1 mm×1 mm. The first optical axis14passes along a left side or right side edge of the light-emitting diode L1. The second optical axis15passes along a left side or right side edge of the light-emitting diode L2. The light-emitting diode L3is disposed on a central axis of the lamp cup structure1. As shown inFIG. 4B, the light-emitting module L consists of four light-emitting diodes L1, L2, L3, and L4each having a size of 1 mm×1 mm. The first optical axis14passes along a left side or right side edge of the light-emitting diode L2. The second optical axis15passes along a left side or right side edge of the light-emitting diode L3. As shown inFIG. 4C, the light-emitting module L consists of four light-emitting diodes L1, L2, L3, and L4each having a size of 1 mm×1 mm. The first optical axis14passes through the light-emitting diode L2. The second optical axis15passes along a left side or right side edge of the light-emitting diode L3. As shown inFIG. 4D, the light-emitting module L consists of five light-emitting diodes L1, L2, L3, L4, and L5each having a size of 1 mm×1 mm. The first optical axis14passes along a left side or right side edge of the light-emitting diode L2. The second optical axis15passes along a left side or right side edge of the light-emitting diode L3. The light-emitting diode L5is disposed on the central axis of the lamp cup structure1. It should be noted that, the disposing manner for the light-emitting diodes L1, L2, L3, L4, and L5is not limited to the horizontal arrangement manner shown inFIG. 4AtoFIG. 4D. For example, forFIG. 4C, the light-emitting diodes L1and L2are disposed at the left side of a symmetry axis, the light-emitting diode L2may be disposed on the first optical axis14and not directly disposed at the first focal point F1but adjacent to the first focal point F1, and the light-emitting diode L1may be disposed at the left side of the first optical axis14and located behind the light-emitting diode L2. Therefore, when the light-emitting diodes L1and L2are disposed adjacent to the first focal point F1in this aspect, the light source projected by the light-emitting diodes L1and L2through a plano-convex lens may be darker than that obtained when the light-emitting diodes L1and L2are directly disposed at the first focal point F1. Moreover, the light-emitting diodes L3and L4are disposed at the right side of the symmetry axis, the light-emitting diode L3is disposed adjacent to the third focal point F3, the second optical axis15passes along the left side of the light-emitting diode L3, and a central point of the light-emitting diode L3is disposed on a connection line of the first focal point F1and the third focal point F3. The light-emitting diode L4is similarly disposed adjacent to the third focal point F3, and is located behind the light-emitting diode L3, where not a center of the light-emitting diode L4directly passes through the connection line of the first focal point F1and the third focal point F3, but a partial edge of the light-emitting diode L4passes through the connection line of the first focal point F1and the third focal point F3. Therefore, the light source projected by the light-emitting diodes L1, L2, L3, and L4through the plano-convex lens can comply with the ECE R112 regulation and the projected light source is dark at the left side and bright at the right side.

Referring toFIG. 3A, the lamp cup structure1consists of multiple curved surfaces with different curvatures. For example, the first light-reflecting surface11may have multiple light-focusing curved surfaces. Each of the light-focusing curved surfaces of the first light-reflecting surface11has a focal point. The multiple first light-emitting elements211are disposed on the multiple focal points of the light-focusing curved surfaces, respectively. The second light-reflecting surface12may have multiple light-focusing curved surfaces. Each of the light-focusing curved surfaces has a focal point. The multiple second light-emitting elements221are disposed on the multiple focal points of the light-focusing curved surfaces, respectively. Therefore, each light-focusing curved surface has a focal point and an optical axis. The optical axes of the light-focusing curved surfaces intersect on a common focal point F0. Each light-focusing curved surface has a horizontal base line and a vertical base line. A focal point of the plano-convex lens also converges with the common focal point F0.

Because the curvatures of the light-focusing curved surfaces of the first light-reflecting surface11and the second light-reflecting surface12in the lamp cup structure1may be set in advance and the light-emitting structure2may be correspondingly disposed at the focal points of the light-focusing curved surfaces, the lamp cup structure1provided by the second embodiment of the present disclosure is especially applicable to a discontinuous light-emitting diode package structure.

Third Embodiment

Referring toFIG. 6A, a third embodiment of the present disclosure provides a vehicle lamp structure V, including a lamp cup structure1, a light-emitting structure2, and a reflecting mirror5. In the third embodiment, the lamp cup structure1is similar to that in the first and second embodiments. The biggest difference between the third embodiment and the first embodiment is that, in the third embodiment, the curvatures of a first light-focusing curved surface113and a second light-focusing curved surface114on a first light-reflecting surface11are changed so that disposing positions of a first light-emitting module21and a second light-emitting module22correspond to a central axis of the lamp reflector structure1. For example, the lamp cup structure1has a first light-focusing curved surface113and a second light-focusing curved surface114connected to the first light-focusing curved surface113. The first light-focusing curved surface113has a first focal point F1and a second focal point F2. The second light-focusing curved surface114has a third focal point F3and a fourth focal point F4. The second focal point F2and the fourth focal point F4converge with each other. The light-emitting structure2includes a first light-emitting module21and a second light-emitting module22. The first light-emitting module21may include multiple first light-emitting elements211for generating a first light source or may have only one light-emitting element. The second light-emitting module22may include multiple second light-emitting elements211for generating a second light source or may have only one light-emitting element. At least one of the multiple first light-emitting elements211corresponds to the first focal point F1and at least one of the multiple second light-emitting elements221corresponds to the third focal point F3. Moreover, in the third embodiment, a reflecting mirror5may be disposed between the first light-emitting module21and the second light-emitting module22immediately adjacent to the second light-emitting module22to reflect a light source of the light-emitting module. Therefore, through the arrangement manner of the first light-focusing curved surface113, the second light-focusing curved surface114, the first light-emitting module21, and the second light-emitting module22, the first light source generated by the at least one first light-emitting element211is projected onto the first light-focusing curved surface113to form a first reflection light source through the second focal point F2, one part of the second light source generated by the at least one second light-emitting element221is directly projected onto the second light-focusing curved surface114to form a second reflection light source through the fourth focal point F4, and the other part of the second light source generated by the at least one second light-emitting element221is successively reflected by the reflecting mirror5and the second light-focusing curved surface114to form a third reflection light source through the fourth focal point F4. In this embodiment, the reflecting mirror5can reflect a light ray originally reflected onto the first light-focusing curved surface113onto the second light-focusing curved surface114. The light ray reflected by the reflecting mirror5is a light ray emitted by a virtual image of the second light-emitting module22in the reflecting mirror5, so the light ray may also focus at the second focal point F2and the fourth focal point F4. For example, if the third focal point F3of the second light-focusing curved surface114is located at a junction between the second light-emitting module22and the reflecting mirror5, a light ray from the second light-emitting module22and a light ray from the virtual image fall at two sides of the fourth focal point F4.

Moreover, when the lamp cup structure1further cooperates with a plano-convex lens3, a focal point of the plano-convex lens3is disposed on the second focal point F2and the fourth focal point F4, so that the light source focusing on the second focal point F2and the fourth focal point F4is projected through the plano-convex lens, where an optical axis of the plano-convex lens3is located between the first optical axis14and the second optical axis15.

Referring toFIG. 6B, the light-emitting structure2is disposed in the lamp cup structure1in this embodiment. The light-emitting structure2includes the first light-emitting module21and the second light-emitting module22. The first light-emitting module21includes multiple first light-emitting elements211for generating the first light source. The second light-emitting module22includes multiple second light-emitting elements221for generating the second light source. Each of the first light-emitting elements211and the second light-emitting elements221consists of four light-emitting diodes L1, L2, L3, and L4each having a size of 1 mm×1 mm. The first light-emitting elements211and the second light-emitting elements221are discrete light sources. The distance between adjacent the light-emitting diodes among L1, L2, L3, and L4is between 0.2 mm and 5 mm.

Also referring toFIG. 2A, the lamp cup structure1in the third embodiment may be similar to the lamp cup structure1in the first embodiment or the second embodiment. For the third embodiment, the first light-reflecting surface11has a first light-focusing curved surface113and a second light-focusing curved surface114, the second light-reflecting surface12has a third light-focusing curved surface123and a fourth light-focusing curved surface124, the first light-focusing curved surface113has a first optical axis14, the second light-focusing curved surface114has a second optical axis15, the third light-focusing curved surface123has a third optical axis16, and the fourth light-focusing curved surface124has a fourth optical axis17. The first optical axis14passes through the light-emitting diodes L2of the first light-emitting module21and the second light-emitting module22. The third optical axis16may pass along left side or right side edges of the light-emitting diodes L3of the first light-emitting module21and the second light-emitting module22. The second optical axis15and the fourth optical axis17may pass along left side or right side edges of the light-emitting diodes L2and L3. However, the present disclosure is not limited thereto. In the present disclosure, the curvature of a focusing curved surface may be changed so that an optical axis passes through a light-emitting diode or along a left side or right side edge of the light-emitting diode. Further, in the present disclosure, if it is desired to increase the luminous intensity of the vehicle lamp structure V, more light-emitting modules may be disposed so that the projecting light source has higher illuminance or lumens and the projection distance of the light source can be increased.

Moreover, a control module may be used to control the turnon or turnoff of the first light-emitting module21and the second light-emitting module22and thus control the light distribution pattern, color temperature or colored light of the light source emitted by the light-emitting structure2. Therefore, if light-emitting diodes with different colored light are used in combination, a light source with a different color can be obtained. Taking a white light as an example, a warm white light of 3000 K may be mixed with a blue light of about 460 nm, and a white light with another color temperature can be obtained. Alternatively, a warm white light of 3000 K may also be mixed with a cold white light of 6500 K to obtain a colored light of about 4000 K.

Because the curvatures of the light-focusing curved surfaces of the first light-reflecting surface11and the second light-reflecting surface12in the lamp cup structure1may be set in advance and the light-emitting structure2is correspondingly disposed at the focal points of the light-focusing curved surfaces, the lamp cup structure1provided by the third embodiment of the present disclosure is especially applicable to a discontinuous light-emitting diode package structure.

Possible Effects of the Embodiments

In sum, the beneficial effects of the present disclosure are in that, the vehicle lamp structure V provided by the present disclosure can be especially applicable to a discontinuous light-emitting diode package structure, and the light-emitting elements may be correspondingly disposed at the focal points of the light-reflecting surfaces in vehicle lamp structure1, so that relevant regulations such as ECE R112 in the Regulations of United Nations Economic Commission for Europe (called ECE regulations for short) are met, the manufacturing cost is reduced, and the illuminance, the lumens, and the projection distance of the light source are increased.

The above description is only intended to provide the preferred embodiments of the present disclosure, and is not to limit the patent scope of the present disclosure. All equivalent technical variations made according to the specification and drawings of the present disclosure fall within the protection scope of the present disclosure