A blue light emitter

Abstract

The utility model provides a blue light emitter, belonging to the field of lighting technology. The blue light emitter includes: a light source device and a lens. The light source device includes a shell and a circuit board installed in the shell and having current stabilization and temperature control functions. The circuit board is electrically connected to a blue LED lamp and a fan. The blue LED lamp is also electrically connected to a brightness adjuster. The shell also includes an opening for emitting light outwards. The lens includes a lens barrel and two lenses arranged inside the lens barrel. The lenses are located in the lens barrel and each lens can move back and forth along the axis direction of the lens barrel. One end of the lens is connected to the opening. The blue light emitter of the utility model can adjust the brightness of the light source and the size of the light spot.

Description

Technical Field

[0001] The utility model relates to the technical field of lighting, in particular to a blue light emitter. Background Art

[0002] When shooting high-temperature objects, the objects may emit red light or other wavelengths of light due to their high temperature. Since the wavelength of the blue light source is far away from that of red light, the blue light has stronger brightness and penetration in a high-temperature environment, which can illuminate the target object, allowing the camera to clearly capture details and improve the contrast and clarity of the picture.

[0003] The existing blue light emitter places a blue light source in a housing and irradiates the target object through a lens.

[0004] The existing blue light emitter has a single brightness and cannot meet the shooting requirements of high-temperature objects of different temperatures. At the same time, due to the different shooting parts, the size of the light spot needs to be adjusted according to the shooting requirements, but the existing blue light emitter cannot adjust the brightness and the size of the light spot. Utility Model Content

[0005] One purpose of the utility model is to solve the problem that the brightness and the light spot size cannot be adjusted in the existing blue light emitter.

[0006] In particular, an embodiment of the present application provides a blue light emitter, comprising:

[0007] A light source device, comprising a housing, a circuit board with current stabilization and temperature control functions installed in the housing, the circuit board being electrically connected to a blue LED lamp and a fan, the blue LED lamp being electrically connected to a brightness adjuster, and the housing further comprising an opening for emitting light outwards; and

[0008] The lens comprises a lens barrel and two lenses arranged inside the lens barrel. The lenses are located inside the lens barrel and each of the lenses can move back and forth along the axis direction of the lens barrel. One end of the lens is connected to the opening.

[0009] Furthermore, the two lenses include a convex lens arranged close to the light source device and a concave lens arranged far away from the light source device.

[0010] Furthermore, an outer surface of the lens barrel close to the opening is provided with an external thread, and the opening is provided with an internal thread, and the lens barrel is threadedly connected to the opening.

[0011] Furthermore, a concave mirror for converging the light of the LED lamp is arranged in the shell, and the concave surface of the concave mirror faces the opening.

[0012] Furthermore, two side panels of the shell that are opposite to each other in the first direction are curved panels, and ventilation grids are provided on the curved panels.

[0013] Furthermore, heat dissipation fins are provided on two side plates of the shell that are opposite to each other in a second direction, and the second direction is perpendicular to the first direction.

[0014] Furthermore, the height of the heat dissipation fins gradually decreases in a direction away from the LED lamp.

[0015] The beneficial effects of the utility model are:

[0016] 1. By setting a brightness adjuster, the brightness of the LED light can be adjusted to adapt to different shooting environments; by setting a lens combination that can move along the axis of the lens barrel in the lens, the size of the light spot can be adjusted.

[0017] 2. The threaded connection between the lens and the opening makes it easy to disassemble the lens.

[0018] 3. By setting a concave mirror inside the shell, the light of the blue LED lamp can be more concentrated.

[0019] 4. By setting the side panels as curved panels, arranging ventilation grids on the curved panels, and adding fins to the shell, the heat dissipation function of the light source device is enhanced to avoid excessive temperature inside the shell, which affects the stability of the light source. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view of a blue light emitter according to an embodiment of the utility model;

[0021] Figure 2 It is a left side view of a blue light emitter according to an embodiment of the utility model;

[0022] Figure 3 for Figure 1 Cross-sectional view along the AA direction.

[0023] In the figure:

[0024] 100-blue light emitter; 1-light source device; 2-lens; 21-lens barrel; 22-convex lens; 23-concave lens; 24-internal thread; 3-curved plate; 4-circuit board; 5-blue LED light; 6-fan; 7-opening; 8-concave mirror; 9-ventilation grid; 10-heat sink fin; 11-housing. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. It is to be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some structures related to the present application are shown in the accompanying drawings, rather than all structures. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0026] The terms "including" and "having" and any variations thereof in this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products or devices.

[0027] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0028] like Figure 1 As shown, in one embodiment, the blue light emitter 100 includes a light source device 1 and a lens 2. The light source device 1 includes a housing 11, a circuit board 4 with current stabilization and temperature control functions installed in the housing 11, and the circuit board 4 is electrically connected to the blue LED lamp 5 and the fan 6, that is, the circuit board 4 is used to transmit power to the blue LED lamp 5, and when the blue LED lamp 5 emits a large amount of heat, the fan 6 is controlled to be turned on through the circuit board 4.

[0029] The blue LED lamp 5 is also electrically connected to a brightness adjuster (not shown), and the housing 11 further includes an opening 7 for emitting light outward. The lens 2 includes a lens barrel 21 and two lenses disposed inside the lens barrel 21. The lenses are located inside the lens barrel 21 and each lens can move back and forth along the axis of the lens barrel 21. One end of the lens 2 is connected to the opening 7. Figure 1As shown, in one embodiment, an internal thread 24 is provided inside the lens barrel 21. Since the lens is relatively thin, the lens can be threadedly connected with the internal thread 24 inside the lens barrel 21. When the spot size needs to be adjusted, the lens 2 can be removed, and the lens can be twisted by the friction between the hand and the lens, so that the lens moves along the axis of the lens barrel 21 under the limitation of the internal thread 24. In other embodiments, the existing focusing method in the art can also be used to achieve the movement adjustment of the two lenses, which will not be repeated here.

[0030] In this embodiment, a lens barrel 21 is arranged downstream of the blue LED lamp 5, and two lenses are arranged in the lens barrel 21. By adjusting the distance between the two lenses and the blue LED lamp 5, light spots of different sizes can be formed, so that the light spot emitted by the blue light emitter 100 can be adjusted in size.

[0031] Furthermore, when the temperature inside the housing 11 is high, the circuit board 4 starts the fan 6 to discharge the hot air inside the housing 11 to the outside.

[0032] Furthermore, the brightness adjuster is used to adjust the brightness of the blue LED light 5 to adapt to different shooting environments. In one embodiment, the two lenses include a convex lens 22 arranged close to the light source device 1 and a concave lens 23 arranged far away from the light source device 1. Since the convex lens 22 has the function of converging light and the concave lens 23 has the function of diverging light, when it is necessary to reduce the light spot, the distance between the convex lens 22 and the concave lens 23 should be gradually reduced; when it is necessary to increase the light spot, the distance between the convex lens 22 and the concave lens 23 should be gradually increased.

[0033] In one embodiment, an outer surface of the lens barrel near the opening 7 is provided with an outer thread (not shown), and the opening 7 is provided with an inner thread (not shown), and the lens barrel 21 is threadedly connected to the opening 7, so as to facilitate the disassembly and installation of the lens 2 and the light source device 1.

[0034] Since the light emitted by the blue LED lamp 5 can be emitted at any angle, in order to achieve light gathering, such as Figure 3 As shown, in one embodiment, a concave mirror 8 for converging the light of the blue LED lamp 5 is disposed in the housing 11 , and the concave surface of the concave mirror 8 faces the opening 7 .

[0035] In order to enhance the heat dissipation function of the blue light emitter 100, as Figure 3 As shown, two side panels of the housing 11 facing each other in the first direction are curved panels 3, and ventilation grids 9 are provided on the curved panels 3. By setting the side panels as curved panels 3, the area for outside air to enter the interior of the blue light emitter 100 is increased, making air circulation smoother, and avoiding the blue light emitter 100 from changing resistance due to excessive temperature, thereby affecting the stability of the light source.

[0036] In one embodiment, the housing 11 is provided with heat dissipation fins 10 on two side plates opposite to each other in a second direction perpendicular to the first direction. The heat dissipation fins 10 are in contact with the housing 11, thereby further enhancing the heat dissipation effect of the blue light emitter 100.

[0037] In one embodiment, since the temperature near the light source is higher and the temperature far from the light source is lower, in order to further enhance the heat dissipation effect, Figure 1 and Figure 2 As shown, the height of the heat dissipation fins 10 gradually decreases in the direction away from the blue LED lamp 5.

[0038] In this embodiment, the heat dissipation fins 10 of different heights are arranged according to the distance from the blue LED lamp 5 , so that the heat of the blue LED lamp 5 can be quickly conducted away and the heat distribution characteristics in the housing 11 are met.

[0039] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A blue light emitter, characterized in that: include: A light source device, comprising a housing, a circuit board with current stabilization and temperature control functions installed in the housing, the circuit board being electrically connected to a blue LED lamp and a fan, the blue LED lamp being electrically connected to a brightness adjuster, and the housing further comprising an opening for emitting light outwards; and The lens comprises a lens barrel and two lenses arranged inside the lens barrel. The lenses are located inside the lens barrel and each of the lenses can move back and forth along the axis direction of the lens barrel. One end of the lens is connected to the opening.

2. The blue light emitter according to claim 1, characterized in that: The two lenses include a convex lens arranged close to the light source device and a concave lens arranged far away from the light source device.

3. The blue light emitter according to claim 1, characterized in that: An external thread is arranged on the outer surface of the lens barrel near the opening, and an internal thread is arranged at the opening. The lens barrel is threadedly connected to the opening.

4. The blue light emitter according to claim 1, characterized in that: A concave mirror for converging the light of the LED lamp is arranged in the shell, and the concave surface of the concave mirror faces the opening.

5. The blue light emitter according to claim 1, characterized in that: The two side plates of the shell that are opposite to each other in the first direction are curved plates, and ventilation grids are arranged on the curved plates.

6. The blue light emitter according to claim 5, characterized in that: The housing is provided with heat dissipation fins on two side plates opposite to each other in a second direction, and the second direction is perpendicular to the first direction.

7. The blue light emitter according to claim 6, characterized in that: The height of the heat dissipation fins gradually decreases in a direction away from the LED lamp.

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