CN110081383B

CN110081383B - Light projection device and its shielding plate structure

Info

Publication number: CN110081383B
Application number: CN201810156445.7A
Authority: CN
Inventors: 王正
Original assignee: Chian YIH Optotech Co Ltd
Current assignee: Chian YIH Optotech Co Ltd
Priority date: 2018-01-26
Filing date: 2018-02-24
Publication date: 2021-04-30
Anticipated expiration: 2038-02-24
Also published as: CN207935977U; TWI650512B; TW201932751A; CN110081383A

Abstract

The invention discloses a light projection device and a shielding plate structure thereof. The shielding plate structure comprises a shielding plate body, a light type adjusting part, a first extinction area and a second extinction area. The light type adjustment portion sets up on the sunshade body. The first extinction area is arranged on the shielding plate body and located on a first side edge of the light type adjusting portion. The second extinction area is arranged on the shielding plate body and located on a second side edge of the light type adjusting portion. Therefore, the invention achieves the effect of reducing stray light.

Description

Light projection device and its shielding plate structure

Technical Field

The present invention relates to a light projection device and a shielding plate structure thereof, and more particularly, to a light projection device with a light-switching state and a shielding plate structure thereof.

Background

First, in the design of the conventional vehicle lamp device, the requirements and specifications of the high beam and the low beam are different, the high beam requires light condensation to achieve the purpose of long-distance illumination, and the low beam requires light expansion to achieve the purpose of wide vision at a short distance. Therefore, in the design concept of the vehicular lamp device, the high beam and the low beam are usually designed separately, i.e. each has its own dedicated lamp cup to respectively take charge of the illumination of the high beam and the low beam. For example, the TW M353845 discloses a "vehicle lamp structure for driving illumination", which achieves the switching function between a near lamp and a far lamp by using separate near lamp and far lamp modules.

Next, the light emitting module of the conventional vehicle Lamp device can be divided into a tungsten halogen Lamp and an HID (High Intensity Discharge) Lamp, wherein the arc length of the tungsten halogen Lamp is 5.6 mm (millimeter), the arc length of the HID Lamp is 4.3 mm, and the light collecting system thereof mostly adopts pes (projector inclined system). The main light-emitting type of the HID lamp is concentrated at the two electrodes, so that the light concentration of the high beam lamp can be distributed by a light spot close to the high light intensity, and the light distribution of the low beam lamp can be distributed by an electric arc far away from the high light intensity. However, since the Light-emitting diode (LED) is a uniform surface Light source and has no particularly prominent high-intensity area, it is difficult to design a vehicle lamp device with a single lens structure. In addition, if the conventional vehicle lamp device is designed to have a combined far and near light structure with a single lens, the overall size of the vehicle lamp device will be larger, and the luminous intensity can only reach the threshold value meeting the regulatory specification.

Next, in order to simulate the arc length and size of the tungsten halogen filament and the HID lamp, the conventional light emitting diode module installed in the vehicle headlamp is packaged in a continuous type of a single crystal type light emitting diode package, and only a single light emitting module can be used in a case of a single optical axis and a single focus, so that a light emitting diode having a size of 1 mm × 1 mm is generally used as a base for packaging. The continuous die-bonding led package is a method of packaging a plurality of led chips on a silicon substrate by a eutectic process or other processes, so that the distance between the chips of the led can be less than 0.2 mm, even less than 0.05 mm. Since the plurality of light emitting diodes are spaced apart from one another by a small distance, they can be regarded as a continuous light emitter. However, the continuous type of the die-connected light emitting diode package has a price more than 10 times that of the light emitting diode for illumination manufactured by the general manufacturing process under the same brightness. That is, the light emitting diode for illumination packaged by the general process is directly packaged by a single die of the light emitting diode, or two or more dies of the light emitting diode are directly packaged. In other words, the package using such light emitting diodes is a non-connected structure. Furthermore, the non-continuous mode of the packaged led means that the distance between the dies of each led is greater than 0.2 mm or 0.5 mm, and even the distance between the dies of each led can be up to 4 mm.

In addition, the conventional vehicle lamp device usually lights only the light emitting structure located above the optical axis of the lens in the near-light state, and lights the light emitting structure located below the optical axis of the lens in the far-light state (when the shutter structure is turned down). However, this approach does not make effective use of the light emitting structure.

In addition, when the vehicle lamp device is in a near-light state, a part of light may be reflected by the top surface of the shielding plate structure to form light transmitted to the lens, however, the light forms stray light projected above a horizontal line (HH line), and the light projected by the vehicle lamp device is affected.

Therefore, it is an important subject to be solved by those skilled in the art to provide a light emitting diode as an illumination light source, which can switch between a near light and a far light with a single lens, and which overcomes the above-mentioned drawbacks by using the characteristics of the shielding plate structure and the arrangement relationship between the lamp devices.

Disclosure of Invention

The present invention provides a light projection device and a shielding plate structure thereof to reduce stray light of the light projection device.

In order to solve the above technical problem, one of the technical solutions adopted by the present invention is to provide a shielding plate structure, which includes: a shutter body, a front side cut-off edge, a rear side cut-off edge, a top side surface and an extinction area. The front cut-off edge is located on the shutter body. The rear cut-off edge is located on the shielding plate body, and the rear cut-off edge and the front cut-off edge are arranged correspondingly to each other to form a light type adjusting portion arranged on the shielding plate body. The top surface is located on the shutter body and connected between the front cutoff edge and the rear cutoff edge. The light extinction area is adjacent to the front side cut-off edge.

Furthermore, the light extinction area comprises a first light extinction area and a second light extinction area, the first light extinction area is located on a first side edge of the light type adjusting portion, and the second light extinction area is located on a second side edge of the light type adjusting portion.

Further, the first light extinction region and the second light extinction region are connected to each other.

Further, the top surface has a predetermined width, the first light extinction area has a first predetermined width, the second light extinction area has a second predetermined width, a ratio of the predetermined width to the first predetermined width is between 50 and 1.1, and a ratio of the predetermined width to the second predetermined width is between 50 and 1.1.

Furthermore, the first light extinction area is a first groove, the second light extinction area is a second groove, and the first groove and the second groove are respectively adjacent to the front side cut-off edge.

Still further, the shutter structure further includes: a front side surface, the front side stopping edge being connected to the front side surface, wherein the first groove has a first side surface and a second side surface connected to the first side surface, and the second groove has a third side surface and a fourth side surface connected to the third side surface.

Furthermore, a first predetermined angle between the front side surface and the first side surface is between 5 degrees and 85 degrees, and a second predetermined angle between the front side surface and the third side surface is between 5 degrees and 85 degrees.

Furthermore, a third predetermined angle between 0 degrees and 75 degrees is formed between the front side surface and the second side surface, and a fourth predetermined angle between 0 degrees and 75 degrees is formed between the front side surface and the fourth side surface.

Further, a fifth predetermined angle between the top surface and the second side surface is between 90 degrees and 165 degrees, and a sixth predetermined angle between the top surface and the fourth side surface is between 90 degrees and 165 degrees.

Still further, a chamfer is provided between the front side surface and the first side surface, between the first side surface and the second side surface, between the second side surface and the top side surface, between the front side surface and the third side surface, between the third side surface and the fourth side surface, and between the fourth side surface and the top side surface.

Furthermore, the first extinction area is a first coating structure, the second extinction area is a second coating structure, and the light absorption rate of the first coating structure and the second coating structure is greater than 30%.

Still further, the shutter structure further includes: the plate body structure is arranged on the shielding plate body and provided with a first extending portion extending towards a first preset direction and a second extending portion extending towards a second preset direction, the first extinction area is arranged between the first extending portion and the front side cut-off edge, and the second extinction area is arranged between the second extending portion and the front side cut-off edge.

Further, a direction in which the front side cut edge extends toward the rear side cut edge is defined as an inclination direction along which a portion of the top side surface is inclined, and a predetermined inclination angle is provided between the portion of the top side surface and a horizontal plane or an optical axis of a lens, the predetermined inclination angle being greater than 0 degrees and less than 30 degrees.

Still further, the shutter structure further includes: the front side cut-off edge comprises a first front side line segment, a second front side line segment and a front side turning line segment connected or positioned between the first front side line segment and the second front side line segment, and the rear side cut-off edge comprises a first rear side line segment, a second rear side line segment and a rear side turning line segment connected or positioned between the first rear side line segment and the second rear side line segment.

Further, a groove-like structure is recessed in the top surface, and the groove-like structure is disposed between the front side stopping edge and the rear side stopping edge; wherein a direction in which the front side cut-off edge extends toward the rear side cut-off edge is defined as an oblique direction; wherein a turning reflection surface of the groove-like structure recessed in the top surface is inclined at least along the inclination direction.

In order to solve the above technical problem, another technical solution of the present invention is to provide a light projection device, including: a bearing base, a first reflection structure, a first light-emitting structure, a lens structure and a shielding plate structure. The first reflecting structure is arranged on the bearing base. The first light emitting structure is arranged on the bearing base, wherein the first light emitting structure corresponds to the first reflecting structure. The lens structure corresponds to the first and second reflective structures. The shutter structure includes a shutter body, a front cutoff edge, a rear cutoff edge, a top surface, and an extinction area. Wherein the front cut-off edge is located on the shutter body. The rear cut-off edge is located on the shielding plate body, and the rear cut-off edge and the front cut-off edge are arranged correspondingly to each other to form a light type adjusting portion arranged on the shielding plate body. Wherein the top surface is located on the shutter body and connected between the front cut-off edge and the rear cut-off edge. Wherein the light extinction area is adjacent to the front side cut-off edge.

Still further, the shutter structure further includes: the second reflecting structure is arranged on the bearing base, and the second reflecting structure and the first reflecting structure are arranged correspondingly to each other; the second light emitting structure is arranged on the bearing base, wherein the second light emitting structure corresponds to the second reflecting structure; wherein the lens structure corresponds to the second reflective structure.

Furthermore, the first light extinction area is a first groove, the second light extinction area is a second groove, the first groove and the second groove are respectively adjacent to the front side cut-off edge, and the first groove and the second groove are both arranged along the front side cut-off edge.

The shutter structure further includes: a front side surface, the front cutoff edge being connected to the front side surface, wherein the first groove has a first side surface and a second side surface connected to the first side surface, the second groove has a third side surface and a fourth side surface connected to the third side surface, a first predetermined angle is formed between the front side surface and the first side surface, and a second predetermined angle is formed between the front side surface and the third side surface; a third preset angle is formed between the front side surface and the second side surface, and a fourth preset angle is formed between the front side surface and the fourth side surface; the top surface and the second side surface have a fifth predetermined angle therebetween, and the front surface and the fourth side surface have a sixth predetermined angle therebetween.

In order to solve the above technical problem, another technical solution adopted by the present invention is to provide a shielding plate structure, including: the light type adjusting device comprises a shielding plate body, a light type adjusting part, a first extinction area and a second extinction area. The light type adjustment portion is arranged on the shielding plate body. The first extinction area is arranged on the shielding plate body and is located on a first side edge of the light type adjusting portion. The second extinction area is arranged on the shielding plate body and located on a second side edge of the light type adjusting portion.

Furthermore, the first light extinction area is a first groove, and the second light extinction area is a second groove.

One of the benefits of the present invention is that the light projection device and the shielding plate structure thereof provided in the embodiments of the present invention can utilize the technical scheme of "extinction area" to achieve the effect of reducing stray light projected above the horizontal line (HH line in the light type simulation diagram).

For a better understanding of the features and technical content of the present invention, reference should be made to the following detailed description of the invention and accompanying drawings, which are provided for purposes of illustration and description only and are not intended to limit the invention.

Drawings

Fig. 1 is a schematic perspective view of a light projection device according to a first embodiment of the present invention.

Fig. 2 is another perspective assembly view of the light projection device according to the first embodiment of the invention.

Fig. 3 is an exploded perspective view of a light projection device according to a first embodiment of the present invention.

Fig. 4 is another exploded perspective view of the light projection device according to the first embodiment of the invention.

FIG. 5 is a schematic sectional view of the light projection device of FIG. 1 showing a V-V section line in a state close to the lamp.

FIG. 6 is a cross-sectional side view of the light projector shown in FIG. 1 with a V-V section line in a near-light state.

FIG. 7 is a schematic sectional view of the light projector shown in FIG. 1 showing a V-V section line in a high beam state.

FIG. 8 is a cross-sectional side view of the light projector of FIG. 1 with a V-V section line in a high beam state.

Fig. 9 is a perspective view of a shutter structure according to a second embodiment of the present invention.

FIG. 10 is a side cross-sectional view taken along line X-X of FIG. 9.

Fig. 11 is a perspective view of a shutter structure according to a third embodiment of the present invention.

Fig. 12 is a partially enlarged schematic view of the XII portion of fig. 11.

Fig. 13 is another perspective view of the shutter structure according to the third embodiment of the present invention.

Fig. 14 is a schematic perspective view of a shutter structure according to a third embodiment of the present invention.

Fig. 15 is a front view of a shutter structure according to a third embodiment of the present invention.

Fig. 16 is a rear view of a shutter structure according to a third embodiment of the present invention.

Fig. 17 is a schematic top view of a shutter structure according to a third embodiment of the invention.

Fig. 18 is a schematic side view of a light projection device applying the shutter structure according to the third embodiment of the present invention.

Fig. 19 is a partially enlarged view of the XIX portion of fig. 18.

Fig. 20 is a schematic side view of a light projection device with a shutter structure according to a third embodiment of the invention.

Fig. 21 is a partially enlarged schematic view of the XXI portion of fig. 20.

Fig. 22 is a schematic perspective view of a shutter structure according to a third embodiment of the invention.

Fig. 23 is a schematic perspective view of a shutter structure according to a third embodiment of the present invention.

Fig. 24 is a perspective view of a louver structure according to a fourth embodiment of the invention.

Fig. 25 is another perspective view of the shutter structure according to the fourth embodiment of the invention.

Fig. 26 is a schematic perspective view of a shutter structure according to a fourth embodiment of the invention.

Fig. 27 is a side sectional view of XXVII-XXVII section lines of fig. 25.

Fig. 28 is a partially enlarged schematic view of the XXVIII portion of fig. 27.

FIG. 29 is a schematic top view of a shutter structure according to a fourth embodiment of the present invention.

Fig. 30 is a perspective view of a louver structure according to a fifth embodiment of the invention.

Fig. 31 is a perspective view of a louver structure according to a sixth embodiment of the invention.

Fig. 32 is another perspective view of the shutter structure according to the sixth embodiment of the invention.

Fig. 33 is a perspective view of a shutter structure according to a seventh embodiment of the present invention.

FIG. 34 is a schematic top view of a shutter structure according to a seventh embodiment of the present invention.

Fig. 35 is an exploded perspective view of a shutter structure according to a seventh embodiment of the present invention.

Fig. 36 is a perspective view of a shutter structure according to an eighth embodiment of the present invention.

Fig. 37 is a schematic side view of a light projection device with a shutter structure having a first extinction area and a second extinction area according to a ninth embodiment of the invention.

Detailed Description

The following description is provided for the purpose of describing the embodiments of the present disclosure, and the technical scope of the present disclosure will be apparent to those skilled in the art from the following description. The invention is capable of other and different embodiments and its several details are capable of modification in various other respects, all without departing from the spirit and scope of the present invention. The drawings of the present invention are for illustrative purposes only and are not drawn to scale. The following embodiments will further explain the technical contents related to the present invention in detail, but the disclosure is not intended to limit the technical scope of the present invention.

It will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements or signals, etc., these elements or signals should not be limited by these terms. These terms are used to distinguish one element from another element, or from one signal to another signal. In addition, as used herein, the term "or" may include all combinations of any one or more of the associated listed items as appropriate.

First embodiment

First, referring to fig. 1 to 4 and fig. 6, fig. 1 to 4 are schematic diagrams of a light projection device Q according to an embodiment of the present invention, which are respectively exploded and assembled in a three-dimensional manner, and fig. 6 is a schematic diagram of a main structure of the light projection device Q in a near-light state. The invention provides a light projection device Q, which comprises a bearing base 1, a first reflection structure 2, a second reflection structure 3, a first light-emitting structure 4, a second light-emitting structure 5, a lens structure 6 and a shielding plate structure 7. For example, the first reflective structure 2 and the second reflective structure 3 can be respectively composed of a plurality of curved surfaces with different curvatures or a single curved surface, such as a reflective structure composed of a curved surface based on an ellipse. In addition, the first reflective structure 2 and the second reflective structure 3 can be disposed on the supporting base 1, for example, the first reflective structure 2 and the second reflective structure 3 can be fixed on the supporting base 1 by a locking member S (such as a screw, etc.), but the invention is not limited thereto. For example, the light projection device Q provided by the embodiment of the invention can be preferably applied to a vehicle lamp device to switch the far and near light states of the vehicle lamp device through the shutter structure 7. However, in other embodiments, the second reflection structure 3 and the second light emitting structure 5 may not be provided, and the light projection device Q may only generate a near-light type.

As described above, referring to fig. 1 to 4, the first reflective structure 2 and the second reflective structure 3 may respectively have a reflective surface (the reflective surface 21 and the reflective surface 31) corresponding to the first light emitting structure 4 and the second light emitting structure 5 to reflect the light generated by the first light emitting structure 4 and the second light emitting structure 5. Further, the shutter structure 7 can be reciprocally swung between a first position (a near light state position) and a second position (a far light state position), thereby switching between the near light state and the far light state by the rotation of the shutter structure 7 (as shown in fig. 5 and 7). In other words, in the embodiment of the invention, the first light emitting structure 4 can generate a low beam type when being lighted, and the first light emitting structure 4 and the second light emitting structure 5 can generate a high beam type when being lighted simultaneously and cooperating with the rotation of the shielding structure 7, but the invention is not limited thereto. For example, in addition to the first light-emitting structure 4 and the second light-emitting structure 5 being turned on and generating a near light or a far light in cooperation with the rotation of the shielding structure 7, in other embodiments, it is preferable that the first light-emitting structure 4 and the second light-emitting structure 5 are simultaneously turned on and generate a near light or a far light in cooperation with the rotation of the shielding structure 7, regardless of the near light state or the far light state. That is, when the first light emitting structure 4 and the second light emitting structure 5 are simultaneously lit, the light of the second light emitting structure 5 can be reflected by the reflective surface 31 of the second reflective structure 3 to contribute to the low beam Hot zone (Hot spot, the positions of 75R, 50V and 50R in the regulations). It should be noted that the first light emitting structure 4 and the second light emitting structure 5 may be a single light emitting diode chip (LED) or a package structure composed of a plurality of LED chips. In addition, the first reflective structure 2 may have a light-diffusing effect compared to the light projection device Q, and the second reflective structure 3 may have a light-condensing effect compared to the light projection device Q, but the invention is not limited thereto.

As mentioned above, referring back to fig. 6, the first reflective structure 2 has at least one first focus 2a and at least one second focus 2b corresponding to the at least one first focus 2a of the first reflective structure 2. The second reflective structure 3 has a first focal point 3a and a second focal point 3b corresponding to the first focal point 3a of the second reflective structure 3, wherein the second focal point 3b of the second reflective structure 3 and the second focal point 2b of the first reflective structure 2 are disposed corresponding to each other. For the embodiment of the present invention, the second focal point 3b of the second reflective structure 3 and the second focal point 2b of the first reflective structure 2 are overlapped with each other, but the present invention is not limited thereto. In other words, in other embodiments, the second focal point 3b of the second reflective structure 3 may be adjacently disposed around the second focal point 2b of the first reflective structure 2.

As shown in fig. 1 to 4 and fig. 5 to 8, fig. 5 and 7 are schematic perspective cross-sectional views of the light projection device Q in a near light state and a far light state, respectively, and fig. 8 is a schematic main structure diagram of the light projection device Q in the far light state. In detail, the supporting base 1 has a first supporting surface 111 and a second supporting surface 121 that is not coplanar with the first supporting surface 111. The first light-emitting structure 4 can be disposed on the first supporting surface 111 to generate a first light L1, and the second light-emitting structure 5 can be disposed on the second supporting surface 121 to generate a second light L2. It should be noted that the first light emitting structure 4 and the second light emitting structure 5 may be disposed on a circuit substrate (not numbered), and the first light emitting structure 4 and the second light emitting structure 5 are disposed on the supporting base 1 through the circuit substrate.

In view of the above, referring to fig. 6 again, the first light emitting structure 4 corresponds to at least one first focus 2a of the first reflecting structure 2, and the second light emitting structure 5 corresponds to the first focus 3a of the second reflecting structure 3. It should be noted that, when the first reflective structure 2 has only one first focal point 2a, the first light emitting structure 4 can be directly disposed on the first focal point 2a of the first reflective structure 2, but the invention is not limited thereto. For example, in other embodiments, the first reflective structure 2 may have two first focal points 2a (not shown) separated from each other, and two second focal points 2b (not shown) corresponding to the two first focal points 2a of the first reflective structure 2. Furthermore, in other embodiments, the second reflective structure 3 may also have two first focal points 3a (not shown in the figures) separated from each other, and two second focal points 3b (not shown in the figures) corresponding to the two first focal points 3a of the second reflective structure 3, respectively. In other words, when the first reflective structure 2 and the second reflective structure 3 respectively have more than two first focuses (2a, 3a) and second focuses (2b, 3b), it means that the first reflective structure 2 and the second reflective structure 3 are respectively a reflective structure with more than two optical axes or a reflective structure with multiple optical axes.

As described above, referring to fig. 1 to 8 again, when the first light-emitting structure 4 and the second light-emitting structure 5 are simultaneously turned on, the second reflecting structure 3 and the second light-emitting structure 5 are disposed to not only contribute to the low beam type hot zone in the near light state, but also reinforce the brightness of the high beam type illumination area that cannot be reached by the first reflecting structure 2 and the first light-emitting structure 4 in the high light state. In addition, according to the embodiment of the present invention, the size of the second reflective structure 3 may be smaller than that of the first reflective structure 2, that is, as shown in fig. 6, the projected area of the first reflective structure 2 may be larger than that of the second reflective structure 3, and the orthographic projection area of the first reflective structure 2 may also completely cover the orthographic projection area of the second reflective structure 3, that is, when looking down from the top (y direction) (the first reflective structure 2 faces the second reflective structure 3), the second reflective structure 3 and the second light emitting structure 5 are completely covered by the first reflective structure 2. In addition, as shown in fig. 5, the total surface area of the reflective surfaces of the first reflective structure 2 is larger than that of the second reflective structure 3, and the total surface area of the reflective surfaces of the first reflective structure 2 is at least twice or more than that of the second reflective structure 3. Therefore, through the structural design, the whole volume of the light projection device Q can be greatly reduced, structural change can be carried out on the bearing base 1, and the heat dissipation efficiency of the light projection device Q is improved.

As mentioned above, referring to fig. 6, the lens structure 6 has a lens optical axis a and a lens focal point 6a located on the lens optical axis a, wherein at least one of the second focal point 2b of the first reflective structure 2 and the second focal point 3b of the second reflective structure 3 can be located on the lens optical axis a or adjacent to the lens optical axis a. The present invention will be described in an embodiment in which at least one second focal point 2b of the first reflective structure 2 and the second focal point 3b of the second reflective structure 3 are located on the lens optical axis a and coincide with the lens focal point 6a, however, the present invention is not limited thereto. It should be noted that, in the embodiment of the present invention, since the size of the second reflective structure 3 may be smaller than the size of the first reflective structure 2, the first focal point 3a of the second reflective structure 3 may be located between the lens focal point 6a and the at least one first focal point 2a of the first reflective structure 2 (as shown in fig. 6) or directly below the at least one first focal point 2a of the first reflective structure 2. Furthermore, it is worth noting that, in the embodiment of the present invention, the lens structure 6 may have a lens diameter D, and a predetermined height R may be provided between the bottom portion and the top portion 32 of the second reflective structure 3, wherein the predetermined height R may range from D/7 to D/2.

Referring to fig. 3, fig. 4, fig. 5 and fig. 7, and referring to fig. 6, in detail, the supporting base 1 further includes an accommodating groove 13 recessed below the first supporting surface 111, the second reflecting structure 3 and the second light emitting structure 5 can be disposed in the accommodating groove 13, and the second supporting surface 121 can be located on a bottom surface of the accommodating groove 13. In the embodiment of fig. 5 and 8, the first supporting surface 111 may be parallel to the optical axis a of the lens, and the first supporting surface 111 and the second supporting surface 121 are disposed in an inclined manner, such that the first supporting surface 111 and the second supporting surface 121 have a predetermined angle α between 7 degrees and 90 degrees, preferably, the predetermined angle α may be between 12.5 degrees and 35 degrees. For example, in other embodiments, the first supporting surface 111 and the second supporting surface 121 may be substantially parallel to each other. It should be noted that, when the first supporting surface 111 and the second supporting surface 121 are parallel to each other, the facing directions of the first supporting surface 111 and the second supporting surface 121 are substantially facing a predetermined direction y (facing above the horizontal plane), but the present invention is not limited to the direction perpendicular to the horizontal plane, for example, in the embodiment shown in fig. 5 to 8, the second supporting surface 121 may be disposed obliquely and facing above the horizontal plane. That is, the predetermined directions y facing the first supporting surface 111 and the second supporting surface 121 are both directed to a direction above a horizontal plane. Therefore, as shown in fig. 6, the projection direction of a part of the first projection light L11 generated by the first light emitting structure 4 and the projection direction of a part of the second projection light L21 generated by the second light emitting structure 5 are still both projected onto the first reflecting structure 2 and the second reflecting structure 3 respectively, and both are directed above the horizontal plane.

Next, referring to fig. 3, fig. 4, fig. 5 and fig. 7 again, in detail, the supporting base 1 may have a first supporting plate 11 and a second supporting plate 12 protruding from the first supporting plate 11, the first supporting surface 111 may be disposed on the first supporting plate 11, the second supporting surface 121 may be disposed on the second supporting plate 12, and the first supporting plate 11 (or the first supporting surface 111) and the second supporting plate 12 (or the second supporting surface 121) may also be disposed in an inclined shape. The receiving groove 13 may be formed between the first loading plate 11 and the second loading plate 12, and the receiving groove 13 may be surrounded by a connecting plate 14 connected between the first loading plate 11 and the second loading plate 12. In other words, the second loading board 12 is protruded on the first loading board 11, so that the material cost can be reduced, and the first loading board 11, the connecting board 14 and the second loading board 12 are in a step shape, and the first light emitting structure 4 and the second light emitting structure 5 are respectively disposed on the first loading board 11 and the second loading board 12, so that the first light emitting structure 4 and the second light emitting structure 5 are staggered with each other to disperse the heat source, and at the same time, the heat dissipation area can be increased, thereby increasing the heat dissipation efficiency.

In view of the above, referring to fig. 3, fig. 4, fig. 5 and fig. 7 again, the supporting base 1 further includes a plurality of heat dissipation structures 15, the plurality of heat dissipation structures 15 (e.g., heat dissipation fins) may be disposed on a first heat dissipation surface 112 opposite to the first supporting surface 111 or a second heat dissipation surface 122 opposite to the second supporting surface 121, and the plurality of heat dissipation structures 15 may extend in a direction away from the first supporting surface 111 and in a direction away from the second supporting surface 121 (a direction below a horizontal plane). It should be noted that, since the second carrier 12 is protruded from the first carrier 11 through the connection board 14, the extension length of the heat dissipation structure 15 disposed on the first heat dissipation surface 112 can be greater than the extension length of the heat dissipation structure 15 disposed on the second heat dissipation surface 122, so as to greatly improve the heat dissipation efficiency. At the same time, the connection plate 14 is also surrounded by the heat dissipation structure 15 disposed on the first heat dissipation surface 112. It should be noted that, in other embodiments, the light projection device Q may further include a fan structure (not shown), and the fan structure may be disposed on the carrying base 1. For example, the carrying base 1 further includes a fixing portion 16 for fixing the fan structure, and the fixing portion 16 can be disposed on the first heat dissipation surface 112 or the second heat dissipation surface 122. Therefore, a better heat dissipation effect is achieved through the height difference and the size difference between the first bearing plate 11 and the second bearing plate 12.

Next, referring to fig. 1 to 4, the light projection device Q may further include a lens carrying structure 8, the lens carrying structure 8 may be disposed on the carrying base 1, and the lens structure 6 may be disposed on the lens carrying structure 8. In detail, the carrying base 1 further includes a fixing portion 17 disposed on the first carrying board 11 for fixing the lens carrying structure 8, and the lens carrying structure 8 further includes a carrying portion 81 for disposing the lens structure 6 and a connecting portion 82 connected to the carrying portion 81 for disposing the lens carrying structure 8 on the fixing portion 17 of the carrying base 1.

Next, referring to fig. 1 to 4 again, the shielding structure 7 of the light projection device Q is disposed on the carrying base 1 in a manner of swinging back and forth along a rotation axis I, and the shielding structure 7 is disposed between the first reflective structure 2 and the second reflective structure 3. Further, the shutter structure 7 can be driven by a driving unit M, for example, the driving unit M can have a solenoid valve M1 and a rod M2 controlled by the solenoid valve M1, and the rod M2 can drive a linkage portion (not numbered) of the shutter structure 7 to rotate the shutter structure 7 along the rotation axis I. It should be noted that the present invention is not limited to the form of the driving unit M shown in the drawings, and those skilled in the art can understand other embodiments of the driving unit M. In addition, in the embodiment of the present invention, the shutter structure 7 is a cut-off line shutter (cut-off plate) for generating a cut-off line (cut-off line). Therefore, as shown in fig. 6, when the first light L1 generated by the first light emitting structure 4 and the second light L2 generated by the second light emitting structure 5 pass through the shielding structure 7, a light pattern meeting the regulations can be generated. That is, the cutoff line is of a light type that complies with a headlamp headlight law. It should be noted that the detailed features of the shielding structure 7 are described in the following embodiments.

Next, referring to fig. 6 and 8 again, the paths of the first light L1 and the second light L2 will be further described. For example, as shown in fig. 6, the first reflective structure 2 has a first focal point 2a and a second focal point 2b corresponding to the first focal point 2a of the first reflective structure 2, and the second reflective structure 3 has a first focal point 3a and a second focal point 3b corresponding to the first focal point 3a of the second reflective structure 3, meanwhile, the first light emitting structure 4 may include a light emitting element (a light emitting diode chip or a light emitting diode array packaged by a plurality of light emitting diode chips, preferably a single light emitting diode chip), the second light emitting structure 5 may include a light emitting element 51, and the light emitting element of the first light emitting structure 4 is disposed on at least one first focal point 2a of the first reflective structure 2, the light emitting element 51 of the second light emitting structure 5 is disposed on at least one first focal point 3a of the second reflective structure 3, however, the invention is not limited thereto. In other words, the first reflective structure 2 may also have a plurality of first focal points 2a and a plurality of second focal points 2b corresponding to the plurality of first focal points 2a of the first reflective structure 2, respectively, and the second reflective structure 3 may also have a plurality of first focal points 3a and a plurality of second focal points 3b corresponding to the plurality of first focal points 3a of the second reflective structure 3, respectively.

The first light-emitting structure 4 and the second light-emitting structure 5 may have a plurality of light-emitting elements. It should be noted that although the edge of the light emitting element 51 shown in fig. 5 is inclined at 45 degrees to the light emitting element 41, in other embodiments, the light emitting element 51 may be rotated at an angle such that the edge of the light emitting element 51 is parallel to the light emitting element 41. It should be noted that when the connecting line formed by the two farthest vertices of the light-emitting device 51 is parallel to the optical axis a of the lens (as shown in fig. 7), the brightness and the light pattern can be further improved.

As shown in fig. 6, an optical axis (not shown) of the second reflective structure 3 may be staggered with respect to the lens optical axis a, and the optical axis of the second reflective structure 3 is inclined to the lens optical axis a. In addition, a first light L1 generated by the first light emitting structure 4 may include at least one first projected light L11 projected on the first reflecting structure 2, and the at least one first projected light L11 is reflected by the first reflecting structure 2 to form at least one first reflected light L12 passing through (passing through) the at least one second focal point 2b of the first reflecting structure 2. In addition, a second light L2 generated by the second light emitting structure 5 includes a second projected light L21 projected on the second reflecting structure 3, and the second projected light L21 is reflected by the second reflecting structure 3 to form a second reflected light L22 passing through (passing through) the second focal point 3b of the second reflecting structure 3. In addition, for the embodiment of the present invention, the light shielding structure 7 has a top surface 73, and the second reflected light L22 can pass through the second focal point 3b of the second reflecting structure 3 after first passing along the top surface 73.

It should be noted that, in the embodiment of the present invention, the projection direction of a part of the first projected light L11 and the projection direction of a part of the second projected light L21 are both projected toward a predetermined direction y (upward). For example, as shown in the embodiment of fig. 1 to 8, since the first supporting surface 111 and the second supporting surface 121 both face the predetermined direction y, and the first light-emitting structure 4 and the second light-emitting structure 5 are disposed along the first supporting surface 111 and the second supporting surface 121, respectively, a projection direction of a portion of the first projection light L11 and a projection direction of a portion of the second projection light L21 both face upward (above the horizontal plane) and are projected onto the first reflecting structure 2 and the second reflecting structure 3, respectively.

Next, referring to fig. 8, the difference between fig. 8 and fig. 6 is: fig. 6 shows the position of the louver structure 7 in the low beam state, and fig. 8 shows the position of the louver structure 7 in the high beam state. That is, the shutter structure 7 can pivot along a rotation axis I, a predetermined pivot angle is formed between the shutter structure 7 and the optical axis a of the lens, and the shutter structure 7 can swing back and forth in a range of the predetermined pivot angle, which may be between 15 degrees and 35 degrees. Thereby, the light projection device Q can be switched between the near light state and the far light state by the reciprocating swing of the shutter structure 7.

Second embodiment

Referring to fig. 9 and 10, fig. 9 and 10 are schematic views of a shutter structure 7 according to an embodiment of the present invention. It is to be noted that the shutter structure 7 provided in the second embodiment may be used in place of the shutter structure 7 provided in the first embodiment. The louver structure 7 provided in the embodiment of the invention is preferably applicable to the embodiment when the second light emitting structure 5 is located below the lens optical axis a, or the second light emitting structure 5 is located below the lens optical axis a and the first light emitting structure 4 is located on or above the lens optical axis a. In other words, in the light projection device Q provided in the first embodiment, the distance between the first focal point 3a of the second reflection structure 3 and the lens optical axis a is greater than the distance between the first focal point 2a of the first reflection structure 2 and the lens optical axis a.

In detail, the shutter structure 7 includes a front stopping edge 71, a rear stopping edge 72 and a top surface 73. The rear cutoff edge 72 and the front cutoff edge 71 are disposed corresponding to each other, and the top side surface 73 may be connected between the front cutoff edge 71 and the rear cutoff edge 72. When a light is blocked by the front side blocking edge 71, a cut-off line of a light type conforming to the rules of the headlight of the automobile can be formed by the shutter structure 7. In other words, the front cut-off edge 71 and the rear cut-off edge 72 are both located on the shutter body 70, and the rear cut-off edge 72 and the front cut-off edge 71 are disposed correspondingly to each other to form a light type adjustment portion disposed on the shutter body 70, and at least one light ray passes through the light type adjustment portion (as shown in fig. 9, in one embodiment, the light type adjustment portion may be formed by the front turning line segment 715, the rear turning line segment 725, the turning reflective surface 735, the first connection line segment 736, and the second connection line segment 737) to form a light and shade cut-off line. Further, as shown in fig. 10, a direction extending from the front side cut-off edge 71 to the rear side cut-off edge 72 may be defined as an inclined direction E, when the louver structure 7 is in a near-light state position, a portion of the top surface 73 may be inclined along the inclined direction E, a predetermined inclination angle β may be formed between a portion of the top surface 73 and a horizontal plane H or between a portion of the top surface 73 and an optical axis a of a lens of the light projection device Q, and the predetermined inclination angle β may be greater than 0 degrees and less than 30 degrees, preferably, the predetermined inclination angle β may be between 1 degree and 25 degrees, and more preferably, the predetermined inclination angle β may be between 15 degrees and 25 degrees. Further, for example, the front side blocking edge 71 may have an arc shape. It should be noted that the horizontal plane H may be parallel to the lens optical axis a, or the horizontal plane H may be parallel to and coincident with the lens optical axis a.

In view of the above, as shown in fig. 10, it can be further understood that the greatest difference between the shutter structure 7 provided by one embodiment of the present invention and the prior art is: a part of the top side surface 73 is inclined rearward in the inclination direction E, that is, a part of the top side surface 73 extends obliquely toward the arrangement position of the second light emitting structure 5. Thereby, when the louver structure 7 provided by the second embodiment is applied to the light projection device Q of the first embodiment, the second reflected light L22 generated by the second light emitting structure 5 can be projected to the second focal point 3b of the second reflecting structure 3 along a portion of the top surface 73 inclined to the horizontal plane H or the optical axis a of the lens. In other words, the second reflected light L22 generated by the second light emitting structure 5 may pass through the rear cut edge 72, the top surface 73, and the front cut edge 71 in sequence.

In view of the above, referring to fig. 10, the shielding structure 7 further includes a front side surface 74 and a rear side surface 75 corresponding to the front side surface 74, the front side surface 74 can be connected to the front side stopping edge 71, and the rear side surface 75 can be connected to the rear side stopping edge 72, so that the top side surface 73 is located between the front side surface 74 and the rear side surface 75. Furthermore, the front cut edge 71 may include a first front line 711, a second front line 712, and a front turning line 715 connected to or between the first front line 711 and the second front line 712, wherein the front turning line 715 may be an oblique line compared to the first front line 711 and the second front line 712. In addition, the rear cutoff edge 72 may include a first rear line section 721, a second rear line section 722, and a rear turning line section 725 connected or located between the first rear line section 721 and the second rear line section 722. In addition, the top surface 73 may include a first reflective surface 731, a second reflective surface 732, a turning reflective surface 735 connected or located between the first reflective surface 731 and the second reflective surface 732, a first connecting line segment 736 located between the first reflective surface 731 and the turning reflective surface 735, and a second connecting line segment 737 located between the second reflective surface 732 and the turning reflective surface 735. In the second embodiment, the first reflective surface 731, the second reflective surface 732 and the turning reflective surface 735 are all inclined at least along the inclined direction E, but the invention is not limited thereto. In addition, the length of the front side turning line segment 715 may be smaller than the length of the rear side turning line segment 725, but the invention is not limited thereto, in other words, in other embodiments, as long as the front side turning line segment 715 can block the light of the first light emitting structure 4 and the second light emitting structure 5, and the light shape is made to meet the regulations.

As described above, referring back to fig. 9, the first reflective surface 731, the second reflective surface 732, and the turning reflective surface 735 are located between the front cut edge 71 and the rear cut edge 72. Furthermore, the first reflective surface 731 may be disposed between the first front line segment 711 and the first rear line segment 721, the second reflective surface 732 may be disposed between the second front line segment 712 and the second rear line segment 722, and the turning reflective surface 735 may be disposed between the front turning line segment 715 and the rear turning line segment 725. In addition, the first connection segment 736 and the second connection segment 737 may be disposed between the front-side stopping edge 71 and the rear-side stopping edge 72, and the turning reflective surface 735 is disposed between the first connection segment 736 and the second connection segment 737, wherein the first connection segment 736 and the second connection segment 737 are disposed in a non-parallel manner.

Therefore, compared to the prior art, since the height of the rear side surface 75 is equal to that of the front side surface 74 (the height of the first front side segment 711 is equal to that of the first rear side segment 721, the height of the second front side segment 712 is equal to that of the second rear side segment 722, and the height of the front side turning segment 715 is equal to that of the rear side turning segment 725), when the louver structure 7 is applied to the embodiment in which the second light emitting structure 5 is located below the optical axis a of the lens, the second reflected light L22 of the second light emitting structure 5 will be shielded by the rear side surface 75 of the louver structure 7 provided in the prior art. However, since a portion of the top surface 73 of the louver structure 7 provided by the embodiment of the present invention can be tilted along the tilting direction E, so that a predetermined tilt angle β is formed between the portion of the top surface 73 and a horizontal plane H or between the lens optical axis a of a light projection device Q, the penetration amount of the second light L2 projected onto the second focal point 3b of the second reflecting structure 3 is increased. For example, the predetermined inclination angle β may be greater than 0 degrees and less than 30 degrees, preferably, the predetermined inclination angle β may be between 1 degree and 25 degrees, and more preferably, the predetermined inclination angle β may be between 15 degrees and 25 degrees. In other words, since a portion of the top surface 73 of the louver structure 7 may be inclined in the inclination direction E, the second light L2 can be made to further contribute to the low beam type Hot zone (Hot spot). In addition, the horizontal plane H (x-z plane) is a virtual surface that is substantially parallel to the optical axis A of the lens.

Third embodiment

First, referring to fig. 11 to 14 and fig. 15 and 16, a shutter structure 7 applicable to a light projection device Q is provided according to a third embodiment of the present invention, as can be seen from a comparison between fig. 9 and 11, the biggest difference between the third embodiment and the second embodiment is: the louver structure 7 provided by the third embodiment has a groove-shaped structure G integral with the louver structure 7, and the first reflective surface 731 and the second reflective surface 732 of the louver structure 7 provided by the third embodiment may also be disposed substantially parallel to the lens optical axis a. In detail, the shutter structure 7 may include a front side stopping edge 71, a rear side stopping edge 72 and a top side surface 73. The rear and

front stopping edges

72 and 71 are disposed corresponding to each other, and the top surface 73 may be connected between the front and rear stopping edges 71 and 72. In addition, the direction in which the front cut-off edge 71 extends toward the rear cut-off edge 72 is defined as an inclined direction E, and a portion of the top surface 73 may have a predetermined inclination angle β with respect to a horizontal plane H, either between a lens optical axis a or a lens optical axis a of a light projection device Q. For example, the predetermined inclination angle β may be greater than 0 degrees and less than 30 degrees, preferably, the predetermined inclination angle β may be between 1 degree and 25 degrees, and more preferably, the predetermined inclination angle β may be between 15 degrees and 25 degrees. Therefore, after at least one light ray is shielded by the front side cut-off edge 71 and/or the rear side cut-off edge 72, a light type cut-off line which accords with the law of the headlight of the automobile can be formed.

Referring to fig. 11 to 14, the shielding structure 7 further includes a front surface 74 and a rear surface 75 corresponding to the front surface 74, the front surface 74 may be connected to the front stopping edge 71, and the rear surface 75 may be connected to the rear stopping edge 72, such that the top surface 73 is located between the front surface 74 and the rear surface 75. Furthermore, the front cut edge 71 may include a first front line 711, a second front line 712, and a front turning line 715 connected to or between the first front line 711 and the second front line 712, wherein the front turning line 715 may be an oblique line compared to the first front line 711 and the second front line 712. In addition, the rear cutoff edge 72 may include a first rear line section 721, a second rear line section 722, and a rear turning line section 725 connected or located between the first rear line section 721 and the second rear line section 722. It should be noted that the front stop edge 71 of the shutter structure 7 provided in the third embodiment may further include a third front line segment 713 connected to the first front line segment 711 and a fourth front line segment 714 connected to the second front line segment 712. In addition, the rear cutoff edge 72 further includes a third rear line segment 723 connected to the first rear line segment 721 and a fourth rear line segment 724 connected to the second rear line segment 722. It is noted that, in some embodiments, the first front line segment 711 and the third front line segment 713 may be substantially the same line segment, and the second front line segment 712 and the fourth front line segment 714 may be substantially the same line segment. It is noted that the first front line segment 711 may be disposed between the third front line segment 713 and the front turning line segment 715, and the first rear line segment 721 may be disposed between the third rear line segment 723 and the rear turning line segment 725.

As described above, referring to fig. 11 to 14, the top surface 73 may include a first reflective surface 731, a second reflective surface 732, and a turning reflective surface 735 connected or located between the first reflective surface 731 and the second reflective surface 732. In addition, compared to the second embodiment, the shutter structure 7 provided in the third embodiment further includes a third reflecting surface 733 and a fourth reflecting surface 734. Moreover, the top surface 73 may further include a first connection segment 736 and a second connection segment 737, the first connection segment 736 and the second connection segment 737 may be disposed between the front-side stopping edge 71 and the rear-side stopping edge 72, and the turning reflective surface 735 may be disposed between the first connection segment 736 and the second connection segment 737, preferably, the first connection segment 736 and the second connection segment 737 may be disposed in a non-parallel manner, but the invention is not limited thereto. In other words, the first connection segment 736 is also disposed between the turning reflective surface 735 and the third reflective surface 733, and the second connection segment 737 is also disposed between the turning reflective surface 735 and the fourth reflective surface 734.

In detail, the first reflective surface 731 is disposed between the third front segment 713 and the third rear segment 723, the second reflective surface 732 is disposed between the fourth front segment 714 and the fourth rear segment 724, and the turning reflective surface 735 is disposed between the front turning segment 715 and the rear turning segment 725. The third reflecting surface 733 is disposed between the first reflecting surface 731 and the turning reflecting surface 735, and the fourth reflecting surface 734 is disposed between the second reflecting surface 732 and the turning reflecting surface 735. In other words, the first reflective surface 731 is disposed between the third front line segment 713, the third rear line segment 723 and the third reflective surface 733, the second reflective surface 732 is disposed between the fourth front line segment 714, the fourth rear line segment 724 and the fourth reflective surface 734, and the turning reflective surface 735 can be disposed between the front turning line segment 715 and the rear turning line segment 725. It should be noted that the first reflective surface 731 and the third reflective surface 733 are not coplanar with each other, and the second reflective surface 732 and the fourth reflective surface 734 are not coplanar with each other. Preferably, in the third embodiment, the first reflective surface 731 and the second reflective surface 732 may be disposed substantially parallel to the horizontal plane H or the lens optical axis a, or disposed parallel to the lens optical axis a of the light projection device Q. It should be noted that, in the third embodiment, the first reflective surface 731 and the second reflective surface 732 can be disposed parallel to the horizontal plane H or parallel to the optical axis a of the lens of the light projection device Q, so as to increase the brightness of the light diffusion region (for example, the positions of 25L2, 25R1, 25L3, 25R2, 15L and 15R in the ECE R98 regulation, or the positions of 25L and 25R in the ECR 112 regulation) of the light projection device Q.

In view of the above, the third reflecting surface 733, the fourth reflecting surface 734 and the turning reflecting surface 735 of the top surface 73 form a groove-shaped structure G with respect to the louver structure 7. In other words, the groove-like structure G is recessed in the top surface 73 and disposed between the front side cut edge 71 and the rear side cut edge 72, and at the same time, a turning reflection surface 735 of the groove-like structure G recessed in the top surface 73 is inclined at least along the inclination direction E. Therefore, at least one light ray generated by the second light emitting structure 5 can sequentially pass through the rear-side cut-off edge 72, the turning reflective surface 735 and the front-side cut-off edge 71, and a bright-dark cut-off line can be formed after the at least one light ray is blocked by the front-side cut-off edge 71.

Next, referring to fig. 11 to 14, the light shielding structure 7 may further include an excess light reflector 7R1, the excess light reflector 7R1 may be disposed on the front surface 74, and the excess light reflector 7R1 has an excess light reflecting surface 7R 1S. The illumination of the dark area of the residual light (Zone III area by law) can be further provided by the provision of the residual light reflecting plate 7R 1. In addition, when the lamp is in a near light state, the residual light reflecting surface 7R1S can have an angle between 10 degrees and 50 degrees with the horizontal plane H, but the invention is not limited thereto. In other words, the angle of the residual light reflecting surface 7R1S can be determined according to the reflecting plate 22 (shown in fig. 6 and 18) on the first reflecting structure 2 provided in the first embodiment.

Next, referring to fig. 11 and fig. 15 to 17, the louver structure 7 may further include a light type trimming plate 7R2, the light type trimming plate 7R2 may be disposed on the front side surface 74, and the light type trimming plate 7R2 may have a light type trimming surface 7R 2S. For example, in the embodiment of the present invention, the louver structure 7 may further include two light type trimming plates 7R2, the two light type trimming plates 7R2 are disposed on the front side surface 74, and the two light type trimming plates 7R2 are respectively disposed on two opposite sides of the residual light reflecting plate 7R 1. Further, by providing the light type trimming plate 7R2, the illumination range in the high beam state can be trimmed in the high beam state. It should be noted that the louver structure 7 with the light pattern trimming plate 7R2 can be preferably applied to the first light emitting structure 4 or the second light emitting structure 5 using the non-continuous crystal type. In addition, as shown in fig. 22 and 23, the light type trimming plate 7R2 and the residual light reflecting plate 7R1 in the louver structure 7 may be alternatively, simultaneously or not, and the groove-shaped structure G can be used to achieve the effect of improving the light emitting efficiency.

Next, referring to fig. 18 to 21, fig. 18 is a schematic view of the shutter structure 7 in a near light state, fig. 20 is a schematic view of the shutter structure 7 in a far light state, and the path of the light projected on the shutter structure 7 will be further described in detail. It should be noted that, in the embodiment of the invention, the first light-emitting structure 4 and the second light-emitting structure 5 can generate the first light L1 and the second light L2 simultaneously, respectively, no matter whether the shielding structure 7 is in a near light state or a far light state. In detail, as shown in fig. 18 and fig. 19, the first reflecting structure 2 of the light projection device Q provided in the first embodiment may further include a reflective plate 22, and a first light L1 generated by the first light emitting structure 4 may include at least one first projection light L11 projected on the first reflecting structure 2, wherein a portion of the first projection light L111 may be projected on the reflective surface 21 of the first reflecting structure 2, and another portion of the first projection light L112 may be projected on the reflective plate 22 of the first reflecting structure 2. A part of the first projection light rays L111 is reflected by the reflective surface 21 of the first reflective structure 2 to form first reflected light rays L121 passing through (passing through) a part of the second focal point 2b of the first reflective structure 2. Another part of the first projection light L112 is reflected by the reflection plate 22 of the first reflection structure 2 to form another part of the first reflection light L122 projected onto the residual light reflection surface 7R1S of the residual light reflection plate 7R1 of the louver structure 7. Another part of the first reflection L122 is reflected by the residual light reflector 7R1 of the louver structure 7 to form a first incident light L13 projected onto the lens structure 6. Accordingly, the first incident light beam L13 can be projected in a direction equal to or larger than the horizontal plane by the arrangement of the excessive light reflecting plate 7R1 and the reflecting plate 22. In other words, the first incident light ray L13 can provide illumination of the dark area afterglow area (Zone III area by law). It should be noted that the first projection light L11 may further include another portion of the first projection light (not shown), the another portion of the first projection light may be projected onto the reflection surface 21 of the first reflection structure 2, and the another portion of the first projection light is reflected by the reflection surface 21 to form another portion of the first reflection light (not shown) projected onto the first reflection surface 731 and the second reflection surface 732 of the louver structure 7, and the another portion of the first reflection light may be reflected by the first reflection surface 731 and the second reflection surface 732 to form regions projected onto the left and right sides of the dipped headlight-type hot region (for example, the positions of 25R and 25L in the ECE R112, or the positions of 25L2, 25R1, 25L3, 25R2, 15L, and 15R in the ECE R98) for generating the light diffusion effect.

In view of the above, as shown in fig. 19, a second light L2 generated by the second light emitting structure 5 includes a second projected light L21 projected on the second reflecting structure 3, and the second projected light L21 is reflected by the second reflecting structure 3 to form a second reflected light L22 passing through (passing through) the second focal point 3b of the second reflecting structure 3. In addition, according to the embodiment of the invention, the second reflected light L22 may pass through the second focal point 3b of the second reflective structure 3 after passing along the groove-shaped structure G of the louver structure 7. In addition, it should be noted that in the high beam state, the light shape trimming plate 7R2 may be used to trim the light shape of the high beam, so that the light shape of the high beam is more Li.

Fourth embodiment

First, referring to fig. 24, a fourth embodiment of the present invention provides a shutter structure 7 applicable to a light projection device Q, as can be seen from a comparison between fig. 24 and fig. 23, the biggest difference between the fourth embodiment and the third embodiment is: the shielding structure 7 provided in the fourth embodiment may further include a light-extinction region. And the extinction area may be adjacent to the front side cut-off edge 71. For example, the light extinction region may include a first light extinction region 76 and a second light extinction region 77. Meanwhile, stray light rays projected above the horizontal line (HH line) can be further reduced by the arrangement of the first and

second extinction areas

76 and 77. In addition, it should be noted that other features of the shutter structure 7 provided in the fourth embodiment are similar to those of the previous embodiments, and are not described herein again.

As shown in fig. 24, the light shielding structure 7 may include a light shielding body 70, a light shape adjusting portion, a first light extinction area 76 and a second light extinction area 77. The light type adjustment portion may be disposed on the shielding plate body 70, and the first extinction area 76 may be disposed on the shielding plate body 70 and located on a first side of the light type adjustment portion. Meanwhile, the second extinction area 77 may be disposed on the shutter body 70 and located on a second side of the light type adjustment portion.

Further, please refer to fig. 24, which is a description of the front stop edge 71, the rear stop edge 72, the top surface 73, the front surface 74 and the rear surface 75 of the foregoing embodiment. In detail, the shutter structure 7 may include a shutter body 70, a front side cut edge 71, a rear side cut edge 72, a top side surface 73, a first light-extinction region 76 and a second light-extinction region 77. The front stopping edge 71 may be located on the shutter body 70, and the rear stopping edge 72 may be located on the shutter body 70. Further, the rear cutoff edge 72 and the front cutoff edge 71 are disposed corresponding to each other to form a light shape adjusting portion provided on the shutter body 70. At least one light ray passes through the sheltering of light type adjustment portion to form a light and shade cut-off line. In addition, the top surface 73 may be located on the shutter body 70, and the top surface 73 may be connected between the front and rear cutoff edges 71 and 72.

In view of the above, it should be noted that, as shown in fig. 24, the front stopping edge 71 may be similar to that of the previous embodiment, and may include a first front line segment 711, a second front line segment 712, and a front turning line segment 715 connected or located between the first front line segment 711 and the second front line segment 712, wherein the front turning line segment 715 may be an oblique line segment compared to the first front line segment 711 and the second front line segment 712. In addition, the front stopping edge 71 of the shielding structure 7 may further include a third front line segment 713 connected to the first front line segment 711 and a fourth front line segment 714 connected to the second front line segment 712. Meanwhile, the first front line segment 711 may be connected to or located between the third front line segment 713 and the front turning line segment 715, and the second front line segment 712 may be connected to or located between the fourth front line segment 714 and the front turning line segment 715. It is noted that, in some embodiments, the first front line segment 711 and the third front line segment 713 may be a same continuous line segment or a line segment with different slopes, and the second front line segment 712 and the fourth front line segment 714 may be a same line segment or a line segment with different slopes.

As mentioned above, as shown in fig. 26, the rear stopping edge 72 may be similar to the previous embodiments, and may include a first rear line section 721, a second rear line section 722, and a rear turning line section 725 connected or located between the first rear line section 721 and the second rear line section 722. In addition, the rear stopping edge 72 of the shielding structure 7 may further include a third rear line section 723 connected to the first rear line section 721 and a fourth rear line section 724 connected to the second rear line section 722. Meanwhile, the first rear line section 721 may be connected to or located between the third rear line section 723 and the rear-side turning line section 725, and the second rear line section 722 may be connected to or located between the fourth rear line section 724 and the rear-side turning line section 725.

In view of the above, further, the top surface 73 may be connected between the front side stopping edge 71 and the rear side stopping edge 72, and a part of the top surface 73 is inclined rearward in the inclining direction. In addition, the top surface 73 may include a first reflective surface 731, a second reflective surface 732, and a turning reflective surface 735 connected to or between the first reflective surface 731 and the second reflective surface 732. In addition, the top surface 73 may further include a third reflecting surface 733 and a fourth reflecting surface 734. In addition, the top surface 73 may further include a first connection segment 736 and a second connection segment 737, the first connection segment 736 and the second connection segment 737 may be disposed between the front-side stopping edge 71 and the rear-side stopping edge 72, the turning reflective surface 735 may be disposed between the first connection segment 736 and the second connection segment 737, and the first connection segment 736 and the second connection segment 737 may be disposed in parallel or non-parallel, which is not limited in the present invention. In other words, the first connection segment 736 is also disposed between the turning reflective surface 735 and the third reflective surface 733, and the second connection segment 737 is also disposed between the turning reflective surface 735 and the fourth reflective surface 734.

Next, referring to fig. 24 again, the first light extinction area 76 may be disposed on the top surface 73 of the shutter body 70, and the first light extinction area 76 may be located at a first side (right side as shown in fig. 29) of the light type adjustment portion (in the embodiment of fig. 24, the light type adjustment portion may be the groove-shaped structure G). In addition, the second light extinction area 77 may be disposed on the top surface 73 of the louver body 70, and the second light extinction area 77 may be located on a second side (as shown in fig. 29) of the light type adjustment portion (in the embodiment of fig. 24, the light type adjustment portion may be the groove-shaped structure G), but the invention is not limited to the type of the light type adjustment portion. The following description (for example, the embodiment of fig. 31) will further describe another embodiment of the light pattern adjusting unit.

In view of the above, referring to fig. 24 to 26 and fig. 27 to 28, the following description will be made with reference to the first extinction area 76 as a first groove 761 and the second extinction area 77 as a second groove 771. As shown in fig. 24, the first and

second grooves

761 and 771 are respectively adjacent to the front cutoff edge 71, and the first and

second grooves

761 and 771 may be disposed along the front cutoff edge 71. In other words, the first and

second grooves

761 and 771 may be disposed between the front and rear cutoff edges 71 and 72. Further, the first groove 761 may be disposed along the third front side line segment 713, and the second groove 771 may be disposed along the fourth front side line segment 714. Furthermore, although the first trench 761, the second trench 771 and the groove-shaped structure G are not continuously disposed in the illustrated embodiment, in other embodiments, the first trench 761, the groove-shaped structure G and the second trench 771 may be connected to each other, but the invention is not limited thereto. That is, when the first groove 761 and the second groove 771 are connected to each other, the shutter structure 7 still has a portion of the light shape adjustment portion (i.e., still has a portion of the groove-shaped structure G) to generate a light shape in compliance with the regulations. As mentioned above, referring to fig. 24 to 28, the shielding structure 7 may further include a front side surface 74 as in the previous embodiment, and the front stopping edge 71 may be connected to the front side surface 74. In addition, the first groove 761 may have a first side surface 7611 and a second side surface 7612 connected to the first side surface 7611, and the second groove 771 has a third side surface 7711 and a fourth side surface 7712 connected to the third side surface 7711. Further, the front-side surface 74, the first side surface 7611, the second side surface 7612, and the top-side surface 73 are sequentially connected to each other, and the front-side surface 74, the third side surface 7711, the fourth side surface 7712, and the top-side surface 73 are sequentially connected to each other.

As shown in fig. 24, fig. 25 and fig. 28, fig. 28 is a partial enlarged side view cross-sectional view of fig. 25, and it can be seen from a comparison between fig. 24 and fig. 25 that the greatest difference between the embodiment of fig. 24 and the embodiment of fig. 25 is that in the embodiment of fig. 25, a chamfer T is formed between the front side surface 74 and the first side surface 7611, between the first side surface 7611 and the second side surface 7612, between the second side surface 7612 and the top side surface 73, between the front side surface 74 and the third side surface 7711, between the third side surface 7711 and the fourth side surface 7712, and between the fourth side surface 7712 and the top side surface 73 (see fig. 28). It should be noted that, in the embodiment of the present invention, by setting the chamfer T (or the R-guiding angle in other embodiments), the light can be further disordered to increase the diffusion and/or scattering effect of the light on the chamfer T, so as to achieve the effect of increasing and eliminating stray light. Further, referring to fig. 28 again, fig. 28 is a partially enlarged schematic view of a portion XXVIII of fig. 27. It should be noted that, for the convenience of description, the features of the first groove 761 and the second groove 771 will be described in synchronization with fig. 28. For example, the front side surface 74 and the first side surface 7611 have a first predetermined angle γ 1 between 5 degrees and 85 degrees, and the front side surface 74 and the third side surface 7711 may have a second predetermined angle γ 2 between 5 degrees and 85 degrees. Preferably, the first predetermined angle γ 1 and the second predetermined angle γ 2 may be between 35 degrees and 55 degrees, and more preferably, the first predetermined angle γ 1 and the second predetermined angle γ 2 may be 45 degrees, but the invention is not limited thereto. In addition, a third predetermined angle γ 3 between the front side surface 74 and the second side surface 7612 may be between 0 degrees and 75 degrees, and a fourth predetermined angle γ 4 between the front side surface 74 and the fourth side surface 7712 may be between 0 degrees and 75 degrees. In other words, the front surface 74 and the second side surface 7612 (or the fourth side surface 7712) may be parallel or inclined to each other. In addition, in order to make the first groove 761 (or the second groove 771) suitable for demolding. The second side surface 7612 (or the fourth side surface 7712) may have a draft angle suitable for demolding, and the draft angle may be greater than or equal to 0 degree, i.e., the draft angle may preferably be between 0 degree and 75 degrees, but the invention is not limited thereto. Preferably, the third predetermined angle γ 3 and the fourth predetermined angle γ 4 may be between 1 degree and 30 degrees, and more preferably, the third predetermined angle γ 3 and the fourth predetermined angle γ 4 may be 50 degrees, but the invention is not limited thereto. Furthermore, the top surface 73 (the first reflecting surface 731) and the second side surface 7612 may have a fifth predetermined angle γ 5 between 90 degrees and 165 degrees, and the top surface 73 (the second reflecting surface 732) and the fourth side surface 7712 may have a sixth predetermined angle γ 6 between 90 degrees and 165 degrees. Preferably, the fifth preset angle γ 5 and the sixth preset angle γ 6 may be slightly larger than 90 degrees, and more preferably, the fifth preset angle γ 5 and the sixth preset angle γ 6 may be 95 degrees, but the invention is not limited thereto.

Next, referring to fig. 29 and further referring to fig. 25, the top surface 73 may have a predetermined width W, the first extinction area 76 may have a first predetermined width W1, the second extinction area 77 may have a second predetermined width W2, a ratio of the predetermined width W to the first predetermined width W1 may be between 50 and 1.1, and a ratio of the predetermined width W to the second predetermined width W2 may be between 50 and 1.1, which is not limited thereto.

Fifth embodiment

Referring to fig. 30, fig. 30 is a schematic perspective view of a louver structure according to a fifth embodiment of the present invention, and as can be seen from a comparison between fig. 30 and fig. 24, the biggest difference between the fifth embodiment and the fourth embodiment is: the fifth embodiment provides a different arrangement of the first extinction area 76 and the second extinction area 77 from the fourth embodiment. In addition, it should be noted that other features of the shutter structure 7 provided in the fifth embodiment are similar to those of the previous embodiments, and are not described herein again.

Next, in detail, referring to fig. 30, the first extinction area 76 may be a first cladding structure 762, and the second extinction area 77 may be a second cladding structure 772. For example, the first cladding structure 762 and the second cladding structure 772 can be a coating (coating), such as a coating structure with a light extinction effect (or a light absorption effect), for example, a black coating, and in other embodiments, the first cladding structure 762 and the second cladding structure 772 can also be a micro-structural layer (for example, a rough surface) with a light diffusion effect, but the invention is not limited thereto. In addition, when the first cladding structure 762 and the second cladding structure 772 are coatings, the absorbance (absorption rate) of the first cladding structure 762 and the second cladding structure 772 may be more than 30%, but the present invention is not limited thereto. In other embodiments, the first cladding structure 762 and the second cladding structure 772 can be a sheet structure attached to the shutter structure 7, and the sheet structure can have a light extinction effect (or a light absorption effect). Further, in other embodiments, the first reflective surface 731 and the second reflective surface 732 on the top surface 73 may also have a cladding structure (not numbered) with a reflective effect, but the invention is not limited thereto.

In addition, for the fifth embodiment, the top surface 73 may have a predetermined width W, the first cladding structure 762 may have a first predetermined width W1, the second cladding structure 772 may have a second predetermined width W2, a ratio of the predetermined width W to the first predetermined width W1 may be between 50 and 1.1, and a ratio of the predetermined width W to the second predetermined width W2 may be between 50 and 1.1, but the invention is not limited thereto.

It should be noted that, although the first cladding structure 762, the second cladding structure 772 and the groove-shaped structures G are not continuously disposed in the illustrated embodiment, in other embodiments, the first cladding structure 762, the second cladding structure 772 and the groove-shaped structures G may be connected to each other, but the invention is not limited thereto. That is, when the first cladding structure 762 and the second cladding structure 772 are connected to each other (i.e., a continuous cladding structure is formed), the shutter structure 7 still has a portion of the light shape adjusting portion (i.e., still has a portion of the groove-shaped structure G) to generate a light shape according to the regulations.

Sixth embodiment

First, please refer to fig. 31, fig. 31 is a schematic perspective view of a louver structure according to a sixth embodiment of the present invention, and as can be seen from a comparison between fig. 31 and fig. 24, the biggest difference between the sixth embodiment and the fourth embodiment is: the light shape adjusting portion of the shutter structure 7 provided in the sixth embodiment is different from that of the fourth embodiment. In addition, it should be noted that other features of the shutter structure 7 provided in the sixth embodiment are similar to those of the previous embodiments, and are not described herein again.

In detail, as shown in fig. 31, the first light extinction area 76 of the shutter structure 7 provided in the sixth embodiment may be disposed on the top surface 73 of the shutter body 70, and the first light extinction area 76 may be located at a first side edge of the light type adjustment portion. In addition, the second light extinction area 77 may be disposed on the top surface 73 of the shutter body 70, and the second light extinction area 77 may be located at a second side of the light shape adjustment portion. Further, compared to the fourth embodiment, in the embodiment of fig. 31, the light shape adjusting portion may be formed by the front turning line segment 715, the rear turning line segment 725, the turning reflective surface 735, the first connecting line segment 736 and the second connecting line segment 737. That is, the shielding plate structure 7 provided by the embodiment of the present invention may not have the groove-shaped structure G. That is, the first extinction region 76 and the second extinction region 77 may be provided in a conventional cutoff shield. It should be noted that although fig. 31 shows the first grooves 761 and the second grooves 771 as the first extinction areas 76 and the second extinction areas 77, in other embodiments, the first cladding structure 762 and the second cladding structure 772 may be used as the first extinction areas 76 and the second extinction areas 77, which is not limited by the present invention.

It should be noted that although the first groove 761 and the second groove 771 are discontinuously disposed in the embodiment of fig. 31, in other embodiments, the first groove 761 and the second groove 771 may be grooves connected to each other (as shown in fig. 32), but the invention is not limited thereto.

Referring to fig. 32, fig. 32 is another perspective view of a shutter structure according to a sixth embodiment of the present invention, and as can be seen from a comparison between fig. 32 and fig. 31, in the embodiment of fig. 32, the first groove 761 and the second groove 771 are continuously disposed to form an extinction area. When the first groove 761 and the second groove 771 are connected to each other, the shutter structure 7 still has a part of the light shape adjusting portion to generate a light shape conforming to the regulations. Those skilled in the art can modify the first trench 761, the second trench 771, the first cladding structure 762, the second cladding structure 772, or other structures with the same function according to the present invention. In other words, in the embodiment shown in fig. 25 and 30, the first extinction area 76 and the second extinction area 77 may be disposed in a manner that they are connected with each other as shown in fig. 32, and when the first extinction area 76 and the second extinction area 77 are connected with each other, the shielding structure 7 still has the groove-like structure G partially inclined along the inclination direction E.

Seventh embodiment

First, referring to fig. 33 to 35, fig. 33 to 35 are schematic views of a shutter structure 7 according to a seventh embodiment of the present invention. As can be seen from a comparison between fig. 33 and fig. 24, the largest difference between the seventh embodiment and the fourth embodiment is: the first extinction area 76 and the second extinction area 77 of the shutter structure 7 provided in the seventh embodiment may be formed by a plate structure 78. In addition, it should be noted that other features of the shutter structure 7 provided in the seventh embodiment are similar to those of the previous embodiments, and are not described herein again.

In detail, the louver structure 7 may further include a plate structure 78, the plate structure 78 may be disposed on the louver body 70, the plate structure 78 has a first extending portion 781 extending toward a first predetermined direction (e.g., extending toward a first side of the light type adjustment portion and extending along the front cut-off edge 71 of the louver structure 7), a second extending portion 782 extending toward a second predetermined direction (e.g., extending toward a second side of the light type adjustment portion and extending along the front cut-off edge 71 of the louver structure 7), and a main body portion 783 disposed between the first extending portion 781 and the second extending portion 782. For example, the body portion 783 may be disposed on the shutter body 70 such that the plate structure 78 is disposed on the shutter body 70. In addition, a first extinction region 76 may be provided between the first extension portion 781 and the front blocking edge 71, and a second extinction region 77 may be provided between the second extension portion 782 and the front blocking edge 71.

In other words, the first and second light-

extinction areas

76 and 77 formed between the plate structure 78 and the front cut-off edge 71 of the shutter body 70 function as the first and

second grooves

761 and 771 shown in the fourth embodiment. In addition, the body 783 of the plate structure 78 may preferably have a contour (not numbered) flush with the front stopping edge, but the invention is not limited thereto.

Eighth embodiment

First, please refer to fig. 36, in which fig. 36 is a schematic perspective view of a louver structure according to an eighth embodiment of the present invention, and as can be seen from a comparison between fig. 36 and fig. 30, the biggest difference between the eighth embodiment and the fifth embodiment is: the eighth embodiment provides that the first and second

light extinction areas

76 and 77 of the louver structure 7 can completely cover the first and second

reflective surfaces

731 and 732 of the top surface 73. In addition, it should be noted that other features of the shutter structure 7 provided in the eighth embodiment are similar to those of the foregoing embodiments, and are not described herein again.

In detail, the first light extinction area 76 can be a first cladding structure 762, the second light extinction area 77 can be a second cladding structure 772, and the first cladding structure 762 and the second cladding structure 772 can completely cover the first reflective surface 731 and the second reflective surface 732 of the top surface 73. For example, the absorbance of the first cladding structure 762 and the second cladding structure 772 may be greater than 30%, but the invention is not limited thereto.

Ninth embodiment

Referring to fig. 37 in conjunction with fig. 1, fig. 37 is a schematic side view of a light shielding structure 7 having a first extinction area 76 and a second extinction area 77 applied to a light projection device Q, and fig. 37 is a schematic side sectional view of XXXVII-XXXVII section lines of fig. 1.

In addition, it should be noted that other features of the shutter structure 7 provided in the ninth embodiment are similar to those of the previous embodiments, and are not described herein again. It should be noted that fig. 36 illustrates the shutter structure 7 provided in the first embodiment, however, the shutter structure 7 provided in other embodiments may be applied in other embodiments, and the invention is not limited thereto.

In view of the above, please refer to fig. 37 in combination with fig. 18 and 20, it should be noted that fig. 37 only shows the influence of the first extinction area 76 and the second extinction area 77. In detail, the first light emitting structure 4 and the second light emitting structure 5 can both generate the first light L1 and the second light L2 (please refer to the foregoing embodiment for the path of the second light L2). In the embodiment shown in fig. 37, a first light L1 generated by the first light-emitting structure 4 may further include another part of the first projection light L113, and the another part of the first projection light L113 is projected onto the reflective surface 21 of the first reflective structure 2, and the another part of the first projection light L113 may form another part of the first reflection L123 projected onto the extinction area (the first extinction area 76 and/or the second extinction area 77) by reflection of the reflective surface 21. Further, another portion of the first reflection L123 projected onto the first extinction area 76 and/or the second extinction area 77 may form a first dissipated light L14 that does not enter the lens structure 6, thereby reducing stray light projected above the horizontal line (HH line in the light pattern simulation diagram).

Advantageous effects of the embodiments

One of the benefits of the present invention is that the light projection device Q and the shielding plate structure 7 thereof provided in the embodiment of the present invention, the technical solution of "extinction area", can achieve the effect of reducing stray light projected above the horizontal line. Furthermore, the technical scheme that the first extinction area 76 is located on a first side edge of the light type adjustment portion and the second extinction area is located on a second side edge of the light type adjustment portion can be utilized, so that the effect of reducing stray light projected above a horizontal line can be achieved. In other words, the shutter structure 7 provided by the embodiment of the invention can be applied to the light projection device Q capable of switching between the far and near light states, or applied to the light projection device Q only in the near light state (without the second reflection structure 3 and the second light emitting structure 5).

The light projection device Q and the shielding structure 7 thereof according to the embodiment of the invention can also achieve the effect of improving the light collection efficiency by using the technical feature that a part of the top surface 73 is inclined along the inclination direction E.

The disclosure is only a preferred embodiment of the invention, and is not intended to limit the scope of the claims, so that all technical equivalents and modifications using the contents of the specification and drawings are included in the scope of the claims.

Claims

1. A shutter structure, the shutter structure comprising:

a shutter body;

a front cutoff edge on the shutter body;

the rear cut-off edge is positioned on the shielding plate body, and the rear cut-off edge and the front cut-off edge are arranged correspondingly to each other so as to form a light type adjusting part arranged on the shielding plate body;

a top surface on the shutter body, the top surface connected between the front and rear cutoff edges; and

a light extinction area adjacent to the front side cut-off edge, the light extinction area including a first light extinction area and a second light extinction area;

the first extinction area and the second extinction area are respectively a first groove and a second groove; or, the first extinction area and the second extinction area are respectively a first coating structure and a second coating structure.

2. The louver structure of claim 1, wherein the first light extinction area is located on a first side of the light shape adjustment portion and the second light extinction area is located on a second side of the light shape adjustment portion.

3. The shutter structure of claim 2, wherein the first and second light-extinction regions are interconnected to one another.

4. The louver structure of claim 2, wherein the top surface has a predetermined width, the first light-eliminating region has a first predetermined width, the second light-eliminating region has a second predetermined width, a ratio of the predetermined width to the first predetermined width is between 50 and 1.1, and a ratio of the predetermined width to the second predetermined width is between 50 and 1.1.

5. The louver structure of claim 2 or 3, wherein when the first light-extinction area is the first groove and the second light-extinction area is the second groove, the first groove and the second groove are respectively adjacent to the front cut-off edge.

6. The shutter structure of claim 5, further comprising: a front side surface, the front side stopping edge being connected to the front side surface, wherein the first groove has a first side surface and a second side surface connected to the first side surface, and the second groove has a third side surface and a fourth side surface connected to the third side surface.

7. The structure of claim 6, wherein the front surface and the first side surface have a first predetermined angle therebetween ranging from 5 degrees to 85 degrees, and the front surface and the third side surface have a second predetermined angle therebetween ranging from 5 degrees to 85 degrees.

8. The structure of claim 6, wherein the front surface and the second side surface have a third predetermined angle between 0 degrees and 75 degrees, and the front surface and the fourth side surface have a fourth predetermined angle between 0 degrees and 75 degrees.

9. The shutter structure of claim 6, wherein the top side surface and the second side surface have a fifth predetermined angle therebetween of between 90 degrees and 165 degrees, and wherein the top side surface and the fourth side surface have a sixth predetermined angle therebetween of between 90 degrees and 165 degrees.

10. The shutter structure of claim 6, wherein a chamfer is provided between the front side surface and the first side surface, between the first side surface and the second side surface, between the second side surface and the top side surface, between the front side surface and the third side surface, between the third side surface and the fourth side surface, and between the fourth side surface and the top side surface.

11. The shutter structure of claim 2 or 3, wherein when the first matte region is the first cover structure and the second matte region is the second cover structure, the absorbance of the first cover structure and the second cover structure is greater than 30%.

12. The shutter structure of claim 2, further comprising: the plate body structure is arranged on the shielding plate body and provided with a first extending portion extending towards a first preset direction and a second extending portion extending towards a second preset direction, the first extinction area is arranged between the first extending portion and the front side cut-off edge, and the second extinction area is arranged between the second extending portion and the front side cut-off edge.

13. The shutter structure of claim 1, wherein a direction in which the front cut edge extends toward the rear cut edge defines an inclination direction along which a portion of the top surface is inclined, the portion of the top surface having a predetermined inclination angle with respect to a horizontal plane or an optical axis of a lens, the predetermined inclination angle being greater than 0 degrees and less than 30 degrees.

14. The shutter structure of claim 13, further comprising: the front side cut-off edge comprises a first front side line segment, a second front side line segment and a front side turning line segment connected or positioned between the first front side line segment and the second front side line segment, and the rear side cut-off edge comprises a first rear side line segment, a second rear side line segment and a rear side turning line segment connected or positioned between the first rear side line segment and the second rear side line segment.

15. The shutter structure of claim 1, wherein a groove-like structure is recessed in the top surface, the groove-like structure being disposed between the front and rear cutoff edges; wherein a direction in which the front side cut-off edge extends toward the rear side cut-off edge is defined as an oblique direction; wherein a turning reflection surface of the groove-like structure recessed in the top surface is inclined at least along the inclination direction.

16. A light projection device, comprising:

a bearing base;

the first reflecting structure is arranged on the bearing base;

the first light-emitting structure is arranged on the bearing base, wherein the first light-emitting structure corresponds to the first reflecting structure;

a lens structure corresponding to the first reflective structure; and

a shutter structure comprising a shutter body, a front cutoff edge, a rear cutoff edge, a top surface, and an extinction area;

wherein the front cut-off edge is located on the shutter body;

the rear cut-off edge is positioned on the shielding plate body, and the rear cut-off edge and the front cut-off edge are arranged correspondingly to each other to form a light type adjusting part arranged on the shielding plate body;

wherein the top side surface is located on the shutter body and the top side surface is connected between the front side cut-off edge and the rear side cut-off edge;

the extinction area is adjacent to the front side cut-off edge and comprises a first extinction area and a second extinction area;

17. The light projection device of claim 16, wherein the louver structure further comprises: the second reflecting structure is arranged on the bearing base, and the second reflecting structure and the first reflecting structure are arranged correspondingly to each other; the second light emitting structure is arranged on the bearing base, wherein the second light emitting structure corresponds to the second reflecting structure; wherein the lens structure corresponds to the second reflective structure.

18. A light projection device as claimed in claim 16, wherein the first extinction area is located on a first side of the light shape adjustment portion, and the second extinction area is located on a second side of the light shape adjustment portion.

19. A light projection device as claimed in claim 18, wherein the first and second extinction areas are interconnected.

20. A light projection device as claimed in claim 18, wherein when the first extinction area is the first groove and the second extinction area is the second groove, the first groove and the second groove are respectively adjacent to the front cut-off edge, and both the first groove and the second groove are disposed along the front cut-off edge.

21. A light projection device as claimed in claim 18, wherein when the first extinction area is the first cladding structure and the second extinction area is the second cladding structure, the first cladding structure and the second cladding structure have an absorbance greater than 30%.

22. The light projection device of claim 18, wherein the louver structure further comprises: the plate body structure is arranged on the shielding plate body and provided with a first extending portion extending towards a first preset direction and a second extending portion extending towards a second preset direction, the first extinction area is arranged between the first extending portion and the front side cut-off edge, and the second extinction area is arranged between the second extending portion and the front side cut-off edge.

23. The light projection device of claim 20, wherein the louver structure further comprises: a front side surface, the front cutoff edge being connected to the front side surface, wherein the first groove has a first side surface and a second side surface connected to the first side surface, the second groove has a third side surface and a fourth side surface connected to the third side surface, a first predetermined angle is formed between the front side surface and the first side surface, and a second predetermined angle is formed between the front side surface and the third side surface; a third preset angle is formed between the front side surface and the second side surface, and a fourth preset angle is formed between the front side surface and the fourth side surface; the top surface and the second side surface have a fifth predetermined angle therebetween, and the front surface and the fourth side surface have a sixth predetermined angle therebetween.

24. A shutter structure, the shutter structure comprising:

a shutter body;

the light type adjusting part is arranged on the shielding plate body;

the first extinction area is arranged on the shielding plate body and is positioned on a first side edge of the light type adjusting part; and

a second light extinction area disposed on the cover body and located on a second side of the light type adjustment portion,

25. The shutter structure of claim 24, wherein when the first matte region is the first cover structure and the second matte region is the second cover structure, the absorbance of the first cover structure and the second cover structure is greater than 30%.