Light path structure of novel projection lamp

Abstract

The utility model relates to the technical field of lamps, in particular to a light path structure of a novel projection lamp. Comprising a mounting base, a light source module, a beam splitting and light receiving mechanism, a focusing mechanism and a reflecting mechanism, wherein the light source module, the beam splitting and light receiving mechanism, the focusing mechanism and the reflecting mechanism are arranged on the mounting base; the beam splitting and light receiving mechanism is used for receiving light of a light source and dividing the light into multiple parallel light beams; the light source module comprises a base plate fixedly arranged on the mounting base, LED lamp beads welded and fixed to the base plate and a control circuit board arranged on the mounting base and electrically connected with the base plate, and the base plate is further provided with a light blocking piece used for shrinking the light emitting size of the LED lamp beads. The LED lamp bead is adopted as a lamp source to replace an LD, the manufacturing cost of the lamp can be reduced, and the use safety of the lamp is improved. And by arranging the light blocking piece and the beam splitting light receiving mechanism, the problem that the LED light source is large in diffusion range is solved, the utilization rate of light rays emitted by the LED lamp beads is effectively increased, and therefore the lighting effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lamps, and in particular to a light path structure of a novel floodlight. Background Art

[0002] Currently, a popular type of lamp on the market uses a laser light source to form a specific light spot through refraction or diffraction, which can provide a natural, warm and decorative lighting experience.

[0003] The applicant has applied for a utility model patent with application number CN202122165942.3 and the name "Snowing Laser Starry Sky Light", which includes a housing, a mounting base, a laser, a laser heat dissipation base, a multi-way reflective light splitting mechanism, a circuit board, a focusing mechanism, a reflecting mechanism and a dynamic projection mechanism; the mounting base is placed in the housing, the laser heat dissipation base is placed on the mounting base, the laser is placed on the laser heat dissipation base, the multi-way reflective light splitting mechanism is placed on the light-emitting side of the laser, the focusing mechanism is placed on the mounting base in front of the multi-way reflective light splitting mechanism, the reflecting mechanism is placed on the mounting base in front of the focusing mechanism, the dynamic projection mechanism is placed on the mounting base above the reflecting mechanism, and the circuit board is placed on the mounting base on the right side of the laser heat dissipation base, and is electrically connected to the laser and the dynamic projection mechanism. A beam of laser can be divided into multiple small light spots, and the light spots of different colors will not be separated, so that all light spots can move uniformly from one side to the other in a straight line, and the decorative effect is good.

[0004] In the above structure, the light source uses a laser diode (LD), which can produce a highly concentrated light beam with a small divergence angle, which enables it to produce better lighting effects in lamp design; however, the price cost of laser diodes is usually several to dozens of times higher than that of LEDs of the same power level. In addition, compared with LEDs, laser diodes can produce a limited variety of colors, which means that in applications that require multiple colors, additional color conversion devices may be required to achieve the desired color effects, and its light radiation intensity is very high, which can easily cause damage to the eyes, which to a certain extent limits its promotion in a wider range of application scenarios. However, it was found that if LEDs were used instead, the light divergence range was larger and the brightness was lower after reflection, resulting in insufficient lighting effects. Utility Model Content

[0005] In order to solve the above problems in the background technology, the utility model provides a novel light path structure of a floodlight.

[0006] The solution adopted by the utility model to solve its technical problems is: a new type of optical path structure of a floodlight, including a mounting base and a light source module arranged on the mounting base, a beam-splitting and light-collecting mechanism for collecting light from the light source and dividing it into multiple parallel light beams, a focusing mechanism for focusing the light beams, and a reflecting mechanism for reflecting the multiple parallel light beams. The light source module includes a base plate fixedly mounted on the mounting base, LED lamp beads welded and fixed to the base plate, and a control circuit board arranged on the mounting base and electrically connected to the base plate. The base plate is also provided with a light-blocking sheet for shrinking the light output size of the LED lamp beads.

[0007] By adopting the above technical solution, the manufacturing cost of the lamp can be reduced, and the color richness and safety of the lamp can be improved. The light shield can reduce the light output size of the LED lamp bead, reduce the divergence angle, and improve the concentration of the light. The beam splitting and light collecting mechanism can effectively split and collect the light, making the light beam denser and maintaining the brightness, reducing light loss.

[0008] Furthermore, the beam splitting and light collecting mechanism includes a first array tube with one end covering the light outlet of the LED lamp bead and a second array tube connected to the other end of the first array tube, and the divergence angle of the first array tube is greater than the divergence angle of the second array tube.

[0009] Furthermore, the first array tube and the second array tube both include a lens tube and a plurality of first total reflection lenses arranged in a circular array in the lens tube.

[0010] By adopting the above technical solution, the light beam can be doubly split and collected, making the light spots denser without reducing the brightness, reducing light loss, and solving the problem of large divergence range of LED light sources.

[0011] Furthermore, the focusing mechanism includes a focusing frame fixed on the mounting base and a focusing mirror fixed in the focusing frame.

[0012] By adopting the above technical solution, the originally dispersed light beam can be further focused, thereby improving the brightness and clarity of the light beam.

[0013] Furthermore, the reflection mechanism includes a reflector seat arranged on the mounting base and a plurality of second fully reflective lenses fixed in the reflector seat, and the reflector seat is arranged on the side of the focusing frame facing away from the LED lamp bead.

[0014] By adopting the above technical solution, the focused multi-path light beams can be reflected and their directions can be changed, so that the light beams are projected in a predetermined manner and form numerous light spots.

[0015] Furthermore, the reflection mechanism also includes a mounting bracket fixed on the mounting base and a rotating motor disposed in the mounting bracket and electrically connected to the control circuit board, and the output shaft of the rotating motor is fixedly connected to the reflector seat for driving the reflector seat to rotate.

[0016] By adopting the above technical solution, the rotating motor is controlled by the control circuit board to drive the reflector seat to rotate, which can produce a dynamic light spot effect and increase the interest of the lamp.

[0017] In summary, the beneficial effects of the utility model are:

[0018] 1. The utility model adopts LED lamp beads as light sources to replace laser diodes, which can reduce the manufacturing cost of lamps, increase color richness and use safety. And by adding light shielding sheets, the light output size of LED lamp beads can be reduced, the divergence angle can be reduced, and the concentration of light can be improved. And the full reflection lens in the first array tube and the second array tube can effectively collect light, make the light beam denser and maintain brightness, reduce light loss, and solve the problem of large divergence range of LED light source.

[0019] 2. The utility model divides the light source twice through the first array tube and the second array tube, and can organize the divergent light to form multiple auxiliary light beams without affecting the main light beam. Then the focusing mechanism focuses them to make the multiple light beams more concentrated and brighter, and then they are divided and reflected by the reflection mechanism to form many light spots, and finally driven by the rotating motor to rotate and project to form an effect similar to the dancing fireflies in the air.

[0020] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the overall structure of this embodiment;

[0022] Figure 2 is a cross-sectional view of this embodiment;

[0023] Figure 3 is a schematic diagram of another viewing angle of this embodiment;

[0024] Figure 4 It is a partially enlarged schematic diagram of the beam splitting and light collecting mechanism of this embodiment.

[0025] In the figure: 1. mounting base; 2. light source module; 21. substrate; 22. LED lamp beads; 23. control circuit board; 3. beam splitting and light collecting mechanism; 31. first array tube; 32. second array tube; 33. lens tube; 34. first total reflection lens; 4. focusing mechanism; 41. focusing frame; 42. focusing lens; 5. reflection mechanism; 51. reflection mirror seat; 52. second total reflection lens; 53. mounting bracket; 54. rotating motor; 6. light shield. DETAILED DESCRIPTION

[0026] In order to make the content of the utility model more clearly understood, the utility model is further described below based on specific embodiments in combination with the accompanying drawings.

[0027] It should be noted that the terms "center", "upper", "lower", "front", "back", "left", "right", "inner", "outer" and the like used herein to indicate directions or positional relationships are based on directions or positional relationships shown in the accompanying drawings, and 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 direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. Unless otherwise specified, "plurality" means two or more.

[0028] Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood by specific circumstances.

[0029] like Figures 1 to 4 As shown, a new type of light path structure of a floodlight, wherein this embodiment includes a mounting base 1 and a light source module 2 arranged on the mounting base 1, a beam splitting and light collecting mechanism 3 for collecting light from the light source and dividing it into multiple parallel light beams, a focusing mechanism 4 for focusing the light beams, and a reflecting mechanism 5 for reflecting the multiple parallel light beams. The light source module 2 includes a substrate 21 fixedly mounted on the mounting base 1, LED lamp beads 22 welded and fixed to the substrate 21, and a control circuit board 23 arranged on the mounting base 1 and electrically connected to the substrate 21. The substrate 21 is also provided with a light blocking sheet 6 for shrinking the light output size of the LED lamp beads 22.

[0030] The mounting base 1 of this embodiment serves as the basic support structure of the entire lamp, and a support plate is vertically arranged at one end thereof. The substrate 21 is an aluminum substrate 21 attached to the support plate, and LED lamp beads 22 are welded thereon as light sources. The aluminum substrate 21 has good thermal conductivity and can effectively help the LED lamp beads 22 to dissipate heat. The control circuit board 23 fixed on one side of the mounting base 1 is electrically connected to the aluminum substrate 21 and the LED lamp beads 22. By using multi-color LED lamp beads 22, the control circuit board 23 can be used to switch and adjust the brightness and color of the LED lamp beads 22. A light blocking sheet 6 is also arranged on the substrate 21 corresponding to the light outlet of the LED lamp beads 22. It can also be a light blocking object that can limit the size of the light outlet, which is used to shrink the size of the main light beam emitted by the LED lamp beads 22. It can limit the size of the light outlet of the LED lamp beads 22 to ≤Φ1.0MM, thereby reducing the divergence angle and improving the light concentration.

[0031] like Figure 2 and Figure 4 As shown, the beam splitting and light receiving mechanism 3 of this embodiment includes a first array tube 31 with one end covered on the light outlet of the LED lamp bead 22 and a second array tube 32 connected to the other end of the first array tube 31, and the divergence angle of the first array tube 31 is greater than the divergence angle of the second array tube 32. And both the first array tube 31 and the second array tube 32 include a lens barrel 33 and a plurality of first total reflection lenses 34 arranged in a circular array in the lens barrel 33. The beam splitting and light receiving mechanism 3 is arranged behind the light outlet of the LED lamp bead 22, and includes a first array tube 31 with one end covered on the light outlet of the LED lamp bead 22, and its divergence angle is preferably 30 degrees. There are a plurality of first total reflection lenses 34 arranged in a circular array in the first array tube 31. In this embodiment, the divergence angle of the first array tube 31 is the inclination angle of the first total reflection lens 34. And a second array tube 32 connected to the other end of the first array tube 31, whose divergence angle is 20 degrees, which is smaller than the divergence angle of the first array tube 31, and the second array tube 32 also includes a plurality of first full-reflection lenses 34. The light emitted by the LED lamp beads 22 first enters the first array tube 31, and the main light beam in the central part is not affected, while the divergent light beams in the edge part are divided by the first full-reflection lenses 34 in the first array tube 31 into multiple auxiliary light beams equal to the number of internal full-reflection lenses, and these auxiliary light beams are roughly parallel to the central direction of the main light beam, forming a first multi-path light beam. Immediately after the first multi-path light beam enters the second array tube 32, the first full-reflection lenses 34 in the second array tube 32 further divide and collect these light beams, so that the light spots are more dense without reducing the brightness, forming a second multi-path light beam, and reducing light loss, solving the problem of large divergence range of LED light sources. And the light radiation intensity of the LED lamp beads 22 is much lower than that of the laser diode, reducing the potential risk of damage to human eyes.

[0032] like Figure 1As shown, the focusing mechanism 4 of this embodiment includes a focusing frame 41 fixedly mounted on the mounting base 1 and a focusing mirror 42 fixedly mounted in the focusing frame 41. The focusing mirror 42 is a plano-convex mirror and its convex surface is arranged to face away from the LED lamp bead 22. The multiple light beams sorted by the beam splitting and light collecting mechanism 3 arrive at the focusing mechanism 4. The multiple light beams are incident from a plane, and the incident parallel light beams can be converged to a focus, and the originally dispersed light beams can be further focused, thereby improving the brightness and clarity of the light beams.

[0033] like Figure 1 As shown, the reflective mechanism 5 of this embodiment includes a reflector seat 51 arranged on the mounting base 1 and a plurality of second fully reflective lenses 52 fixed in the reflector seat 51. The reflector seat 51 is arranged on the side of the focusing frame 41 facing away from the LED lamp bead 22. The reflector seat 51 is concave on the side facing the focusing mechanism 4, and corresponds to the convex surface of the focusing mirror 42, forming a bowl-shaped structure, and a plurality of fully reflective lenses are evenly arranged in the concave surface, which reflect the multi-path light beams after focusing, change their directions, and project the light in a predetermined manner. And because the incident angle of each beam of light projected onto the reflective bowl is different, the angle of the beam reflected by each beam of light reflector is also different, so that the light spot forms a plurality of light spots.

[0034] like Figure 3 As shown, the reflection mechanism 5 of this embodiment also includes a mounting bracket 53 fixedly arranged on the mounting base 1 and a rotating motor 54 arranged in the mounting bracket 53 and electrically connected to the control circuit board 23, and the output shaft of the rotating motor 54 is fixedly connected to the reflector seat 51 and can drive the reflector seat 51 to rotate. The motor is specifically a stepping motor, and the rotating motor 54 rotates under the control of the electric pulse signal of the control circuit board 23, driving the reflector seat 51 to rotate, so that the reflected light forms a dynamic pattern or effect, similar to the effect of fireflies dancing in the air.

[0035] In summary, the beneficial effects of this embodiment are as follows: this embodiment uses LED lamp beads 22 as light sources to replace laser diodes, which can reduce the manufacturing cost of lamps and increase color richness. The light radiation intensity of LED lamp beads 22 is lower than that of laser diodes, which can reduce the potential risk of damage to human eyes. And by adding a light shield 6, the light output size of the LED lamp beads 22 can be reduced, the divergence angle can be reduced, and the concentration of light can be improved. And the full-reflective lenses in the first array tube 31 and the second array tube 32 effectively collect light, making the light beam denser and maintaining brightness, reducing light loss, so as to solve the problem of large divergence range of LED light sources. The focusing mirror 42 further gathers light, improves the brightness and clarity of the light beam, and makes the final light beam more concentrated and brighter. Then, the reflector seat 51 is driven to rotate by a stepping motor to produce a dynamic light spot effect.

[0036] The embodiments described above are only preferred implementation modes of the present utility model and cannot be used to limit the protection scope of the present utility model. Any non-substantial changes and modifications made by technicians in this field on the basis of the invention shall fall within the protection scope of the present utility model.

Claims

1. A new type of light path structure of a floodlight, characterized in that: It includes a mounting base and a light source module arranged on the mounting base, a beam-splitting and light-collecting mechanism for collecting light from the light source and dividing it into multiple parallel light beams, a focusing mechanism for focusing the light beams, and a reflecting mechanism for reflecting the multiple parallel light beams. The light source module includes a substrate fixedly mounted on the mounting base, LED lamp beads welded and fixed to the substrate, and a control circuit board arranged on the mounting base and electrically connected to the substrate. The substrate is also provided with a light-blocking sheet for shrinking the light output size of the LED lamp beads.

2. According to the light path structure of the novel floodlight fixture of claim 1, it is characterized in that: The beam splitting and light collecting mechanism comprises a first array tube with one end covering the light outlet of the LED lamp bead and a second array tube connected to the other end of the first array tube, and the divergence angle of the first array tube is greater than the divergence angle of the second array tube.

3. According to the light path structure of the novel floodlight fixture of claim 2, it is characterized in that: The first array tube and the second array tube both include a lens tube and a plurality of first total reflection lenses arranged in a circular array in the lens tube.

4. The optical path structure of the novel floodlight according to claim 1 is characterized in that: The focusing mechanism comprises a focusing frame fixed on the mounting base and a focusing mirror fixed in the focusing frame.

5. The optical path structure of the novel floodlight according to claim 4 is characterized in that: The reflection mechanism comprises a reflection mirror seat arranged on the mounting base and a plurality of second total reflection lenses fixed in the reflection mirror seat. The reflection mirror seat is arranged on the side of the focusing frame facing away from the LED lamp bead.

6. The optical path structure of the novel floodlight according to claim 5 is characterized in that: The reflection mechanism also includes a mounting bracket fixed on the mounting base and a rotating motor disposed in the mounting bracket and electrically connected to the control circuit board. The output shaft of the rotating motor is fixedly connected to the reflector seat for driving the reflector seat to rotate.

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