LED parallel light conversion device

Abstract

The present invention relates to an LED parallel light conversion device, comprising a reflector and a point reflector; the point reflector is located within the reflector; the point reflector comprises a transparent cover tube and a first conical reflective portion installed within the transparent cover tube; at least one end of the transparent cover tube is connected to the outside world, and the top of the first conical reflective portion faces the end of the transparent cover tube that is connected to the outside world. The point reflector can convert the planar scattered light of the LED into a point light source, and the reflector can convert the light emitted by the point light source into parallel light before emitting it. This allows the LED lamp to have the light effect of a point light source while serving as a light source, and ultimately enables the LED lamp using the device to simulate the light effect of sunlight.

Description

Technical Field

[0001] The present invention relates to the field of light source equipment for photographing images, and more particularly to an LED parallel light conversion device. Background Art

[0002] When shooting photos or videos, optimal results require sufficient lighting in the environment, with natural sunlight producing the best results. When insufficient light is available, supplemental lighting is required, and the light generated by these devices should closely mimic the effects of sunlight. Sunlight is a point source, with all rays emanating from a single point. Therefore, to mimic sunlight, point sources such as tungsten or halogen lamps are also necessary. However, tungsten lamps generate heat due to the heating of metal, which requires high-power sources for image capture. Tungsten lamps generate significant heat, and their temperature rises over time, ultimately affecting the performance of the entire device or even causing it to malfunction. Therefore, tungsten lamps are not used as light sources in image capture equipment. Halogen lamps, similar to tungsten lamps, can operate at higher power levels, but they contain halogen elements, which are harmful to the environment and are therefore gradually being phased out in various fields. LED is the most common and most widely used light source. However, since the light it emits is surface scattered light rather than a point light source, it is difficult to simulate the light effect of sunlight. As a general lighting device, it can meet the requirements of use. However, when used as a supplementary light source in a picture shooting environment on a device, the light effect of LED lamps is not as good as that of sunlight.

[0003] To increase the parallelism of LED light sources and reduce light intensity attenuation, existing general lighting equipment places the LED inside a parabolic reflector at the reflector's focal point. The reflector then reflects the LED's planar scattered light back into parallel light. While this lighting equipment converts the LED light source into a parallel light source and reduces light intensity attenuation, the LED light itself originates from planar scattered light, so its lighting effect still differs from the point-like sunlight. For example, while point-like light casts a single shadow on an object, planar scattered light, converted into parallel light, still casts multiple, overlapping or non-overlapping, shadows, significantly impacting the quality of captured images. Summary of the Invention

[0004] In order to overcome the problem in the above-mentioned prior art that it is difficult for LED light sources to simulate the lighting effects of sunlight when used as light sources for picture shooting, the present invention provides an LED parallel light conversion device that converts the planar scattered light emitted by LED lamps into point light sources, so that the LED light source can be used as a light source for picture shooting to better simulate the lighting effects of sunlight.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: an LED parallel light conversion device, including a reflector and a point reflector; the point reflector is located inside the reflector; the point reflector includes a transparent cover tube and a first conical reflective part installed in the transparent cover tube, at least one end of the transparent cover tube is connected to the outside world, and the top of the first conical reflective part faces the end of the transparent cover tube connected to the outside world.

[0006] In the above technical solution, when the device is in use, an LED lamp that can serve as a light source is connected to the end of the transparent cover tube that is connected to the outside world. The light emitted by the LED lamp is directed to the first cone reflector. The first cone reflector reflects the light onto the inner wall of the reflector. The light is then converted into parallel light by the reflector tube and emitted to form an external light source. The transparent cover tube does not block the light reflected by the first cone reflector.

[0007] When the light emitted by the LED lamp is directed toward the first cone reflector, the top of the first cone reflector is facing the side of the light source. At the same time, because the first cone reflector is located in a cylindrical object with a smaller space, the first cone reflector is equivalent to collecting all the light emitted by all the LED lamps and then reflecting it out, making the first cone reflector a light-emitting point, thereby converting the planar scattered light emitted by the LED lamp into a point light source, and then reflecting the light emitted by the point light source out through the reflector.

[0008] The focal point of the reflector can be located on or off the point reflector. Placing the focal point on the point reflector provides better lighting efficiency, and even better results are achieved when the focal point is located at the center of the first conical reflector. The first conical reflector can be a cone, a frustum, or an ellipsoid, all of which can convert the planar scattered light emitted by the LED lamp into a point light source, with a cone being the most effective.

[0009] Preferably, the point reflector also includes a second cone reflector portion, and the transparent cover tube is a hollow structure, with both ends connected to the outside world; the cone tops of the first cone reflector portion and the cone tops of the second cone reflector portion face opposite directions. The first cone reflector portion and the second cone reflector portion have the same structure, but face opposite directions. The two can be installed separately in the transparent cover tube, or they can be formed as one piece. Both ends of the transparent cover tube are connected to the outside world, that is, both ends of the point reflector portion can be connected to LED lamps that can serve as light sources, and the first cone reflector portion and the second cone reflector portion can both reflect light to increase the intensity of the final light. Among them, the first cone reflector portion and the second cone reflector portion have the best effect when formed as one piece. At this time, the first cone reflector portion and the second cone reflector portion are tightly connected to form the same light-emitting point, which can better simulate the light effect of sunlight.

[0010] Preferably, the transparent cover tube includes a fixed frame and a transparent tube that wraps the fixed frame, and the first cone reflecting part and the second cone reflecting part are connected to the fixed frame. The first cone reflecting part and the second cone reflecting part can be fixedly connected to the fixed frame, such as by welding, riveting, etc., or can be detachably connected to the fixed frame, such as by threaded connection and snap connection. The first cone reflecting part and the second cone reflecting part are installed in the fixed frame to fill the inner diameter space of the fixed frame, which can facilitate the first cone reflecting part and the second cone reflecting part to collect and reflect light, and the effect of simulating a point light source is better. Light can pass through the transparent tube and enter the reflective cover.

[0011] Preferably, the fixing frame includes a first end tube portion, a second end tube portion and a connecting strip for connecting the first end tube portion and the second end tube portion, and the connecting strip is provided with at least one and is located at the outer edge or the inner edge of the first end tube portion; the transparent cover tube also includes mounting end caps provided at both ends of the fixing frame, and the transparent tube is installed between the two mounting end caps. The fastener passes through the connecting strip and is threadedly connected to the first cone reflecting portion or the second cone reflecting portion to fix the first cone reflecting portion and the second cone reflecting portion on the connecting strip. If the first cone reflecting portion and the second cone reflecting portion are integrally formed, there is no need to connect them separately. The first end tube portion and the second end tube portion can be used to connect a light source, and the light emitted by the LED light source is restricted by the first end tube portion or the second end tube portion, while the first cone reflecting portion and the second cone reflecting portion occupy the entire internal space of the fixing frame, so that the first cone reflecting portion and the second cone reflecting portion can better collect the light emitted by the LED light source.

[0012] Preferably, the first cone reflecting portion and the second cone reflecting portion are both cones, and the angle between the cone tops of the first cone reflecting portion and the second cone reflecting portion is 40-80 degrees. At this angle, the light convergence effect is good, the reflected light has high parallelism and higher light density (that is, it has better light intensity). Because the angle is too small, at the same outer diameter, the volume of the first cone reflecting portion and the second cone reflecting portion will increase, and the effect of simulating a point light source will deteriorate. If the angle is too large, the reflection surface of the light will become relatively smaller, and the reflection effect of the light will deteriorate.

[0013] Preferably, a light-transmitting tube is mounted on one end of the transparent cover tube that is connected to the outside world, and a parallel light lens group is disposed within the light-transmitting tube. Light emitted by the LED lamp serving as the light source first passes through the light-transmitting tube before entering the point reflector. The parallel light lens group within the light-transmitting tube first converts the light emitted by the LED lamp into parallel light, thereby improving the parallelism of the light ultimately emitted by the reflector.

[0014] Preferably, at least one filter ring is provided at the light outlet of the reflector, and a plurality of connecting rods are provided on the inner wall of the reflector to connect to the filter ring; the axes of the filter rings are all collinear with the axis of the reflector. Since not all light rays from the first cone reflector and the second cone reflector can be directed vertically toward the reflector, some light rays that are not directed vertically toward the reflector will be emitted from the reflector at a certain angle, affecting the parallelism of the final light rays. However, due to the action of the filter ring, parallel light rays will not be blocked by the filter ring, while non-parallel light rays will be reflected from the reflector and projected onto the filter ring, preventing these non-parallel light rays from being emitted outside the reflector.

[0015] Preferably, at least two adjacent filter rings are provided, with the filter rings closer to the inner wall of the reflector being shorter than the adjacent filter rings. The distance between the two filter rings is equal to the distance between the outermost filter ring and the inner wall of the reflector. The filter rings are evenly distributed within the reflector, effectively blocking the emission of non-parallel light. The closer the non-vertical light reflected by the first and second conical reflective portions is to the inner wall of the reflector, the closer it is to the light outlet of the reflector. Therefore, if all the filter rings were the same length, some light might not reach the reflector.

[0016] Preferably, a parallel light tube is further provided within the reflector, wherein the axis of the parallel light tube is collinear with the axis of the reflector; the parallel light tube is located within the center of the reflector and is collinear with the axis of the point reflector. When only one end of the light-transmitting tube is installed, the LED lamp can be placed within the parallel light tube to block and absorb the non-parallel light emitted by the LED lamp, allowing only parallel light to enter the point reflector. Alternatively, the light-transmitting tube can be placed within the parallel light tube, with only the outer wall of the parallel light tube being used to block the non-parallel light emitted by the reflector.

[0017] Preferably, the connecting rod passes through the filter ring cylinder and is connected to the outer wall of the collimator cylinder. The filter ring cylinder and the collimator cylinder are fixed at the light outlet of the reflector at the same time through the connecting rod.

[0018] Compared with the existing technology, the beneficial effects of the present invention are: the point reflector can convert the planar scattered light of the LED into a point light source, and the reflector can convert the light emitted by the point light source into parallel light and then emit it, so that the LED lamp can have the light effect of a point light source as a light source, and finally the LED lamp after using this device can simulate the light effect of sunlight. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of Example 1 of an LED parallel light conversion device of the present invention;

[0020] Figure 2 This is a schematic structural diagram of a second embodiment of an LED parallel light conversion device of the present invention;

[0021] Figure 3 This is a working state diagram of Example 2;

[0022] Figure 4 2 is a schematic structural diagram of a point emission element according to embodiment 3 of the present invention;

[0023] Figure 5 This is a schematic structural diagram of a fourth embodiment of an LED parallel light conversion device of the present invention;

[0024] Figure 6 This is a schematic structural diagram of a fifth embodiment of an LED parallel light conversion device according to the present invention;

[0025] Figure 7 This is a perspective view of a reflector of a sixth embodiment of an LED parallel light conversion device of the present invention;

[0026] Figure 8 This is a schematic diagram of the internal structure of a reflector in Example 6 of an LED parallel light conversion device of the present invention. DETAILED DESCRIPTION

[0027] The drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate the embodiments, some components in the drawings may be omitted, enlarged, or reduced in size, and do not represent actual product dimensions. Those skilled in the art will understand that some well-known structures and their descriptions may be omitted from the drawings. The positional relationships depicted in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0028] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "long", "short", etc. indicating the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0029] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0030] Example 1

[0031] like Figure 1 The figure shows an embodiment 1 of an LED parallel light conversion device, comprising a reflector 1 and a point reflector 2; the point reflector 2 is located inside the reflector 1; the point reflector 2 comprises a transparent cover tube 201 and a first conical reflective portion 202 installed inside the transparent cover tube 201, at least one end of the transparent cover tube 201 is connected to the outside world, and the cone top of the first conical reflective portion 202 faces the end of the transparent cover tube 201 connected to the outside world.

[0032] Specifically, the first cone reflecting portion 202 is a cone, and the included angle A of the cone top of the first cone reflecting portion 202 is 60 degrees.

[0033] The focus of the reflector 1 is on the first cone reflection part 202 .

[0034] The working principle and use method of this embodiment are as follows: when using the device, an LED lamp that can serve as a light source is connected to one end of the transparent cover tube 201 that is connected to the outside world. The light emitted by the LED lamp is directed to the first cone reflector 202. The first cone reflector 202 reflects the light to the inner wall of the reflector 1, and then is converted into parallel light by the reflector 1 to be emitted, forming an external light source. The transparent cover tube 201 does not block the light reflected by the first cone reflector 202. When the light emitted by the LED lamp is directed to the first cone reflector 202, the cone top of the first cone reflector 202 faces the side of the light source. At the same time, because the first cone reflector 202 is located in a small cylindrical object, the first cone reflector 202 is equivalent to gathering all the light emitted by all the LED lamps and reflecting them out, making the first cone reflector 202 a luminous point, thereby converting the planar scattered light emitted by the LED lamp into a point light source, and then reflecting the light emitted by the point light source out through the reflector 1.

[0035] The beneficial effects of this embodiment are as follows: the point reflector 2 can convert the planar scattered light of the LED lamp into a point light source, and the reflector 1 can convert the light emitted by the point light source into parallel light and then emit it, so that the LED lamp as a light source can have the light effect of a point light source, and finally the LED lamp after using the device can simulate the light effect of sunlight.

[0036] Example 2

[0037] like Figure 2 The figure shows an embodiment 2 of an LED parallel light conversion device, comprising a reflector 1 and a point reflector 2; the point reflector 2 is located inside the reflector 1; the point reflector 2 comprises a transparent cover tube 201, a first cone reflector portion 202 and a second cone reflector portion 203 both installed inside the transparent cover tube 201, the transparent cover tube 201 is a hollow structure, both ends of which are connected to the outside world, and the cone tops of the first cone reflector portion 202 and the second cone reflector portion 203 face opposite directions, respectively facing one end connected to the outside world.

[0038] In this embodiment, the first cone reflecting portion 202 and the second cone reflecting portion 203 are integrally formed.

[0039] Specifically, the first cone reflector 202 and the second cone reflector 203 are both cones, and the angle B between the cone apex of the first cone reflector 202 and the second cone reflector 203 is 40 degrees. At this angle, the light convergence effect is good, the reflected light is highly parallel, and the light density is higher. If the angle is too small, the volume of the first cone reflector 202 and the second cone reflector 203 will increase at the same outer diameter, and the effect of simulating a point light source will be reduced. If the angle is too large, the reflection surface of the light will become relatively small, and the light reflection effect will be reduced.

[0040] The working principle and usage of this embodiment: Figure 3 As shown, when the device is used, two LED lamps 4 that can serve as light sources are connected to the two ends of the transparent cover tube 201 respectively. The light emitted by the two LED lamps 4 is directed toward the first cone reflector 202 and the second cone reflector 203 respectively. The light reflected by the first cone reflector 202 and the second cone reflector 203 passes through the transparent cover tube 201 and is reflected to the inner wall of the reflector 1. Then, the light is converted into parallel light by the reflector 1 and emitted to form an external light source. The transparent cover tube 201 does not block the light reflected by the first cone reflector 202. When light from an LED lamp strikes the first cone reflector 202, the apex of the first cone reflector 202 and the second cone reflector 203 faces the light source. Furthermore, because the first cone reflector 202 and the second cone reflector 203 are located within a relatively small cylindrical object, they effectively collect all the light from all the LED lamps and reflect it away, forming a single luminous point. This converts the planar scattered light from the LED lamp into a point light source, which is then reflected away by the reflector 1. The arrows in the figure indicate the direction of the light.

[0041] In this embodiment, the first cone reflecting portion 202 and the second cone reflecting portion 203 are integrally formed components, and the focus of the reflector 1 is located on these components.

[0042] The beneficial effects of this embodiment are as follows: the point reflector 2 can convert the planar scattered light of the LED lamp into a point light source, and the reflector 1 can convert the light emitted by the point light source into parallel light and then emit it, so that the LED lamp can have the light effect of a point light source as a light source, and finally the LED lamp after using the device can simulate the light effect of sunlight. Both ends of the point reflector 2 can be connected to LED lamps that can serve as light sources, and the first cone reflector 202 and the second cone reflector 203 can both reflect light to increase the intensity of the final light. Among them, the first cone reflector 202 and the second cone reflector 203 have the best effect when they are integrally formed. At this time, the first cone reflector 202 and the second cone reflector 203 are tightly connected to form the same light-emitting point, which can better simulate the light effect of sunlight.

[0043] Example 3

[0044] A third embodiment of an LED parallel light conversion device, based on the second embodiment, as Figure 4 As shown, the transparent cover tube 201 is further defined.

[0045] The transparent cover tube 201 includes a fixed frame 2011 and a transparent tube 2012 that surrounds the fixed frame 2011. The first cone reflecting portion 202 and the second cone reflecting portion 203 are connected to the fixed frame 2011. The first cone reflecting portion 202 and the second cone reflecting portion 203 are installed in the fixed frame 2011 and fill the inner diameter space of the fixed frame 2011. This can facilitate the first cone reflecting portion 202 and the second cone reflecting portion 203 to collect and reflect light, thereby achieving a better effect of simulating a point light source. Light can pass through the transparent tube 2012 and enter the reflector 1.

[0046] Specifically, the fixing frame 2011 includes a first end tube portion 2111, a second end tube portion 2112, and a connecting bar 2113 for connecting the first and second end tube portions 2111, 2112. The connecting bar 2113 is provided with at least one and is located at the outer edge of the first end tube portion 2111. The transparent cover tube 201 also includes mounting end caps 2013 disposed at both ends of the fixing frame 2011, with the transparent tube 2012 mounted between the two mounting end caps 2013. Fasteners pass through the connecting bar 2113 to connect to the first and second cone reflective portions 202, 203. The first and second end tube portions 2111, 2112 can be used to connect to a light source. Light emitted by the LED light source is restricted by the first and second end tube portions 2111, 2112. The diameters of the first and second end tube portions 2111, 2112 correspond to the light inlet, which is consistent with the maximum diameters of the first and second cone reflective portions 202, 203. The first cone reflecting portion 202 and the second cone reflecting portion 203 occupy the entire inner channel of the fixing frame 2011 , so that the first cone reflecting portion 202 and the second cone reflecting portion 203 can better collect the light emitted by the LED light source.

[0047] In this embodiment, the two mounting end caps 2013 are respectively threadedly connected or snap-fitted to the first end tube portion 2111 and the second end tube portion 2112 , and the transparent tube 2012 is made of glass.

[0048] The remaining features and working principles of this embodiment are consistent with those of embodiment 2.

[0049] Example 4

[0050] A fourth embodiment of an LED parallel light conversion device, based on the first embodiment, as Figure 5 As shown, a light-transmitting tube 3 is mounted on one end of the transparent cover tube 201 that is connected to the outside world. A parallel light lens group 301 is disposed within the light-transmitting tube 3. Light emitted by the LED lamp, which serves as a light source, first passes through the light-transmitting tube 3 before entering the point reflector 2. The parallel light lens group 301 within the light-transmitting tube 3 converts the light emitted by the LED lamp into parallel light, thereby improving the parallelism of the light ultimately emitted by the reflector 1.

[0051] The parallel light lens group 301 can be provided with more than one parallel light lens.

[0052] The remaining features and working principles of this embodiment are consistent with those of embodiment 1.

[0053] Example 5

[0054] Embodiment 5 of an LED parallel light conversion device, based on embodiment 2 or embodiment 3, as Figure 6 As shown, a light-transmitting tube 3 is mounted on both ends of the transparent cover tube 201, and a parallel light lens group 301 is disposed inside the light-transmitting tube 3. Light emitted by the LED lamp as a light source first passes through the light-transmitting tube 3 before entering the point reflector 2. The parallel light lens group 301 inside the light-transmitting tube 3 first converts the light emitted by the LED lamp into parallel light, thereby improving the parallelism of the light ultimately emitted by the reflector 1.

[0055] The remaining features and working principles of this embodiment are consistent with those of embodiment 2 or 3.

[0056] Example 6

[0057] Embodiment 6 of an LED parallel light conversion device, based on any of the above embodiments, as Figure 7 and Figure 8 As shown, the reflector 1 is further defined.

[0058] Two adjacent filter rings 101 are provided at the light outlet of the reflector 1. The filter ring 101 closer to the inner wall of the reflector 1 is shorter than the adjacent filter ring 101. Three circumferentially equidistant connecting rods 102 are provided on the inner wall of the reflector 1 to connect to the filter rings 101. The axes of the filter rings 101 are all collinear with the axis of the reflector 1. Because not all light reflected by the first conical reflector 202 and the second conical reflector 203 can be directed vertically toward the reflector 1, some light that is not directed vertically toward the reflector 1 will be emitted from the reflector 1 at a certain angle, affecting the parallelism of the final light. However, due to the action of the filter rings 101, parallel light will not be blocked by the filter rings 101, while non-parallel light will be reflected from the reflector 1 and hit the filter rings 101, preventing this non-parallel light from being emitted outside the reflector 1. The distance between the two filter rings 101 is equal to the distance between the outermost filter ring 101 and the inner wall of the reflector 1. The filter rings 101 are evenly distributed within the reflector 1, effectively blocking the emission of non-parallel light. The closer the non-vertical light reflected by the first and second conical reflective portions 202 and 203 is to the inner wall of the reflector 1, the closer it is to the light outlet of the reflector 1. If all the filter rings 101 were the same length, some light might not reach the reflector 1.

[0059] In this embodiment, the length difference between two adjacent filter rings 101 is 25-35 mm. The length of the outermost filter ring 101 is 50-70 mm. The angle C formed by the line connecting the top of the second cone reflector 203 and the end of the outermost filter ring 101 is 147.6-187.6 degrees. In this embodiment, under these parameter settings, the two filter rings 101 can block and filter non-parallel light reflected by the reflector 1.

[0060] Specifically, a collimator 103 is further disposed within the reflector 1. The axis of the collimator 103 is collinear with the axis of the reflector 1. The collimator 103 is located in the center of the reflector 1 and is collinear with the axis of the point reflector 2. If only one end of the reflector is equipped with the translucent tube 3, placing the LED lamp within the collimator 103 can block and absorb the non-parallel light emitted by the LED lamp, allowing only the parallel light to enter the point reflector 2. Alternatively, the translucent tube 3 can be placed within the collimator 103, with only the outer wall of the collimator 103 blocking the non-parallel light from the reflector 1.

[0061] Furthermore, the connecting rod 102 passes through the filter ring cylinder 101 and is connected to the outer wall of the collimator cylinder 103. The filter ring cylinder 101 and the collimator cylinder 103 are fixed to the light outlet of the reflector 1 at the same time by the connecting rod 102.

[0062] The remaining features and working principles of this embodiment are consistent with any of the above embodiments.

[0063] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. An LED parallel light conversion device, comprising a reflector (1), characterized in that: It also includes a point reflector (2); the point reflector (2) is located in the reflector (1); the point reflector (2) includes a transparent cover tube (201) and a first cone reflector (202) installed in the transparent cover tube (201), at least one end of the transparent cover tube (201) is connected to the outside world, and the cone top of the first cone reflector (202) faces the end of the transparent cover tube (201) that is connected to the outside world; The point reflector (2) further comprises a second cone reflective portion (203); the transparent cover tube (201) is a hollow structure, with both ends connected to the outside world; the cone top of the first cone reflective portion (202) and the cone top of the second cone reflective portion (203) face opposite directions; The transparent cover tube (201) comprises a fixing frame (2011) and a transparent tube (2012) wrapping the fixing frame (2011); the first cone reflecting portion (202) and the second cone reflecting portion (203) are connected to the fixing frame (2011); The fixing frame (2011) comprises a first end tube portion (2111), a second end tube portion (2112) and a connecting strip (2113) for connecting the first end tube portion (2111) and the second end tube portion (2112), wherein the connecting strip (2113) is provided with at least one and is located at the outer edge or the inner edge of the first end tube portion (2111); the transparent cover tube (201) further comprises mounting end caps (2013) provided at both ends of the fixing frame (2011), and the transparent tube (2012) is installed between the two mounting end caps (2013).

2. The LED parallel light conversion device according to claim 1, characterized in that: The first cone reflecting portion (202) and the second cone reflecting portion (203) are both cones, and the included angle between the cone tops of the first cone reflecting portion (202) and the second cone reflecting portion (203) is 40-80 degrees.

3. The LED parallel light conversion device according to any one of claims 1-2, characterized in that: A light-transmitting cylinder (3) is installed at one end of the transparent cover cylinder (201) that is connected to the outside world, and a parallel light lens group (301) is arranged in the light-transmitting cylinder (3).

4. The LED parallel light conversion device according to any one of claims 1-2, characterized in that: At least one filter ring cylinder (101) is provided at the light outlet of the reflector (1), and a plurality of connecting rods (102) are provided on the inner wall of the reflector (1) and connected to the filter ring cylinder (101); the axes of the filter ring cylinders (101) are all collinear with the axis of the reflector (1).

5. The LED parallel light conversion device according to claim 4, characterized in that: At least two adjacent filter ring cylinders (101) are provided, and the length of the filter ring cylinder (101) close to the inner wall of the reflector (1) is shorter than the length of the adjacent filter ring cylinder (101).

6. The LED parallel light conversion device according to claim 5, characterized in that: A parallel light cylinder (103) is further provided in the reflector (1), wherein the axis of the parallel light cylinder (103) is collinear with the axis of the reflector (1); the parallel light cylinder (103) is located in the center of the reflector (1) and is collinear with the axis of the point reflector (2).

7. The LED parallel light conversion device according to claim 6, characterized in that: The connecting rod (102) passes through the filter ring cylinder (101) and is connected to the outer wall of the parallel light cylinder (103).

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