Reflecting cup and hand-held lighting device

Abstract

The application discloses a light reflecting cup structure and application thereof in a handheld lighting device. The light reflecting cup is provided with three light source through holes, the layout of which is in the vertex position of an equilateral triangle, and a certain interval is kept between each cup groove to ensure independence. This design not only ensures that light is concentrated in the center area of the lamp head, but also realizes 360-degree omnidirectional lighting coverage through cooperation of the three light sources. In addition, due to the independence of the angles of the light sources, the light source area of the center area of the lighting lamp is increased, thereby enhancing the lighting range. The light reflecting cup is further provided with a mounting hole for a laser emitter, facilitating integration of the laser emitter. In disaster rescue scenes such as fire and heavy fog, the laser emitter can assist in observing the surface trend of objects such as smoke, thereby assisting rescue personnel in quickly identifying the terrain, effectively tracking the smoke dynamic, avoiding entering the deep part of the fire, and further improving the efficiency and safety of rescue operations.

Description

Technical Field

[0001] This disclosure relates to the field of lighting technology, and more particularly to a reflector and a handheld lighting device. Background Technology

[0002] Handheld lights, due to their lightweight, long battery life, and portability, have become indispensable tools in emergency rescue and outdoor adventure activities. Traditional spotlight designs suffer from narrow fields of view, making them unsuitable for wide-angle illumination in dimly lit outdoor environments. Furthermore, in natural disaster relief efforts such as fires or heavy fog, the lighting effects of traditional handheld lights (such as flashlights and emergency lights) are generally unsatisfactory, and they cannot effectively direct smoke or fog. Summary of the Invention

[0003] In view of this, the present disclosure provides a reflector cup. When viewed from the front, the reflector cup has a triangular shape with a chamfered R-angle. The triangle has three cup grooves inside, which are spaced a certain distance apart. The front of each cup groove is circular, and a light source through hole is provided in the center of each of the three cup grooves. The three light source through holes are connected to form an equilateral triangle.

[0004] In some embodiments, a laser emitter through-hole is provided inside the triangle, and the laser reflector through-hole does not overlap with the three cup grooves.

[0005] In some embodiments, the three cup slots are equidistant from each other and are of the same size, and the distances from the laser emitter through-hole to the three light source through-holes are all equal.

[0006] In some embodiments, the distance D between the three cups satisfies R / 2 ≤ D < R, where R is the radius of a single cup.

[0007] In some embodiments, the aperture of the laser emitter through-hole is smaller than the aperture of a single light source through-hole.

[0008] This disclosure provides a handheld lighting device, including a lamp head assembly. The lamp head assembly includes a lamp head window, a sealing ring, and a reflector as described above. The front of the lamp head window is a triangle with a chamfered R-angle, and the edge of the lamp head window is stepped. The front of the reflector is embedded in the lamp head window, and the sealing ring is sealed at the step.

[0009] This disclosure provides another type of reflector cup. When viewed from the front, the reflector cup is circular. Inside the circle, there are three cup grooves that overlap each other. The front of each cup groove is fan-shaped. A light source through hole is provided in the middle of each of the three cup grooves. The three light source through holes are connected to form an equilateral triangle.

[0010] In some embodiments, the circle is further provided with a laser emitter through hole, which is located outside the three cup grooves. The laser emitter through hole, the center of the circle, and at least one light source through hole are on a straight line.

[0011] In some embodiments, the aperture of the laser emitter through-hole is smaller than the aperture of a single light source through-hole.

[0012] This disclosure provides another handheld lighting device, including a lamp head assembly. The lamp head assembly includes a reflector cup retainer, a glass lens, a glass lens retainer, and another reflector as described above. The glass lens is cylindrical. A portion of the reflector cup retainer is fitted inside a step at the front edge of the reflector cup. The glass lens retainer is located between the glass lens and the reflector cup, and the glass lens retainer and the reflector cup retainer are in close contact with each other.

[0013] This application discloses a reflector cup structure and its application in a handheld lighting device. The reflector cup has three light source through-holes arranged at the vertices of an equilateral triangle, with each slot spaced apart to ensure independence. This design not only ensures light is concentrated in the central area of ​​the lamp head but also achieves 360° omnidirectional lighting coverage through the cooperation of the three light sources. Furthermore, due to the independence of each light source angle, the light source area in the central region of the lamp is increased, thereby enhancing the lighting range. The reflector cup also has pre-drilled mounting holes for a laser emitter, facilitating its integration. In disaster relief scenarios such as fires and heavy fog, the laser emitter can assist in observing the surface movement of objects such as smoke, helping rescuers quickly identify terrain, effectively track smoke dynamics, avoid entering deep into the fire, and thus improve the efficiency and safety of rescue operations. Attached Figure Description

[0014] Figure 1a A schematic diagram of the front structure of a reflector cup is provided for some examples;

[0015] Figure 1b A schematic diagram of the reverse side structure of a reflector cup is provided for some examples;

[0016] Figure 2a A schematic diagram of the front structure of a second type of reflector provided for some examples;

[0017] Figure 2b A schematic diagram of the reverse side structure of a second type of reflector provided for some examples;

[0018] Figure 3 A schematic diagram of the structure of the second type of reflector is provided for some examples;

[0019] Figure 4 A schematic diagram of the structure of a lamp holder window is provided for some examples;

[0020] Figure 5 A partial structural diagram of a lamp holder assembly is provided for some examples;

[0021] Figure 6 A partial structural diagram of a lamp holder assembly is provided for some examples;

[0022] Figure 7 A partial structural diagram of a lamp holder assembly is provided for some examples;

[0023] Figure 8a A schematic diagram of the front structure of a third type of reflector provided for some examples;

[0024] Figure 8b A schematic diagram of the reverse side structure of a third type of reflector provided for some examples;

[0025] Figure 8c A three-dimensional structural diagram of a third type of reflector is provided for some examples;

[0026] Figure 9 A partial structural diagram of another lamp holder assembly is provided for some examples. Detailed Implementation

[0027] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this disclosure, and not all of them. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0028] In the accompanying drawings, for clarity, the dimensions of layers, areas, and elements, as well as their relative dimensions, may be exaggerated. The same reference numerals denote the same elements throughout. It should be understood that when an element or layer is referred to as "on," "adjacent to," "connected to," or "coupled to" other elements or layers, it may be directly on, adjacent to, connected to, or coupled to other elements or layers, or there may be intervening elements or layers. Conversely, when an element is referred to as "directly on," "directly adjacent to," "directly connected to," or "directly coupled to" other elements or layers, there are no intervening elements or layers.

[0029] To fully understand this disclosure, detailed steps and structures will be presented in the following description to illustrate the technical solutions of this disclosure. Preferred embodiments of this disclosure are described in detail below; however, other embodiments may also be implemented in addition to these detailed descriptions.

[0030] In one embodiment, reference is made to... Figure 1a , 1b and Figure 2a , 2b When viewed from the front, the reflector cup presents a triangular shape with a chamfered R-angle. Inside the triangle are three recesses 11, spaced a certain distance apart. Each recess has a circular front surface, and a light source through-hole 12 is located in the center of each of the three recesses 11. The three through-holes 12 connect to form an equilateral triangle. The chamfered R-angle triangle refers to the fact that all three corners of the triangle are rounded, with smooth and continuous edges, without sharp corners. The equilateral triangle design is not only aesthetically pleasing but also facilitates the placement of the three light source through-holes 12. The three through-holes 12 are at 120° intervals from each other, totaling 360°, creating a comprehensive and wide-ranging illumination area. In other embodiments, there may be two, four, or five recesses, etc. The light source through-holes 12 are used for LED light emission.

[0031] refer to Figure 2a In some embodiments, the interior of the reflector cup's triangle is further provided with a laser emitter through-hole 13, which does not overlap with the three cup grooves 11. Preferably, see reference. Figure 3 The three cup slots 11 are equidistant from each other and are of the same size. The distances from the laser emitter through-hole 13 to the three light source through-holes 12 are all equidistant, meaning the laser emitter through-hole 13 is located at the center of the circumcircle (or incircle) of the equilateral triangle formed by the three light source through-holes 12, or the laser emitter through-hole 13 is located at the center of the circle formed by the three light source through-holes 12. The distance D between the three cup slots 11 satisfies R / 2 ≤ D < R, where R is the radius of a single cup slot. In some embodiments, the laser emitter through-hole 13 can be located anywhere that does not overlap with the three cup slots 11. When set at the exact center, in addition to aesthetics, since the laser emitter through-hole 13 is in the exact center of the reflector cup, it is convenient to fix the laser emitter 30 while fixing the reflector cup.

[0032] refer to Figure 3 and Figure 7The aperture of the laser emitter through-hole 13 is smaller than the aperture of the single light source through-hole 12. The laser emitter through-hole 13 is used for laser emission from the laser emitter 30. The laser emitter 30 may include at least: a terminal block, a laser emitting end, a metal sleeve, and a protective cover. The laser emitting end emits a point laser of a specific wavelength. One end of the terminal block is electrically connected to one end of the laser emitting end, and the other end of the terminal block is connected to one end of a lead wire, the other end of which is provided with a power input plug. One end of the metal sleeve is fitted onto the other end of the laser emitting end, and the other end of the metal sleeve is movably connected to and embedded in the protective cover. Adjusting the protective cover changes the length of the metal sleeve embedded in the protective cover. A lens group is provided at the end of the protective cover away from the metal sleeve. The lens group converts the point laser into a line laser, and the line laser forms stripe laser on the surface of the object. The lens group includes a convex lens, a linear lens, and a lens fixing component. The lens fixing component is fitted onto the outside of the convex lens, fixed to the inner wall of the protective cover, and fixes the linear lens inside the protective cover. The convex lens is closer to the metal sleeve than the linear lens. The laser emitter 30 also includes a spring, which is located inside a metal sleeve. One end of the spring contacts the laser emitter, and the other end of the spring contacts the lens assembly.

[0033] In some embodiments, the wavelength range of the point laser emitted by the laser emitter is 400nm-500nm. The laser emitter 30 is used to scan the surface of an object with uneven concentration distribution and form striped laser lines on the object surface. The stripe shape, spacing, phase, and other characteristics of the striped laser lines change with the geometry and height of the object's surface (e.g., smoke), forming a good view of smoke flow, quickly defining the outline, and locating holes and objects in space, so that rescuers can quickly understand the current situation. The laser emitter 30 can help rescuers quickly identify the terrain, observe the direction of smoke, avoid accidentally entering deep into the fire, and improve rescue efficiency and safety. In this embodiment, the laser emitter 30 can be installed by fitting a nut onto one end of a protective cover, with the other end of the nut fixed to the lamp head assembly.

[0034] This application also provides a handheld lighting device, including a lamp head assembly, as shown in the reference. Figure 4-7 The lamp head assembly includes a lamp head window 15, a sealing ring 16, and a reflector cup as described above (not repeated here). The front of the lamp head window 15 is a triangular shape with a chamfered R-angle, and the edge of the lamp head window 15 forms a stepped shape. The front of the reflector cup is embedded in the lamp head window 15, and the sealing ring 16 seals the stepped area. The laser emitting end of the laser emitter 30 is aligned with the laser emitter through hole 13.

[0035] In practical use, the lamp head assembly also includes a front cover, a rear cover, and a lamp bead substrate. The front and rear covers seal the lamp bead substrate, the aforementioned reflector cup retaining ring 24, glass lens 25, glass lens retaining ring 26, and the aforementioned reflector cup. The handheld lighting device also includes a body and a battery housed within the body. The battery powers the lamp bead substrate in the lamp head assembly, which is mounted at one end of the body. The handheld lighting device may also include a handle or grip assembly mounted on one side of the body. The laser emitter 30 is fixed inside the front or rear cover and electrically connected to the lamp bead substrate.

[0036] refer to Figure 1b and 2b The back of the reflector cup also has bolt through holes for fixing the reflector cup to the lamp head assembly. On the back of the reflector cup, there are also multiple connecting rods between the three cup slots 11. These connecting rods connect the multiple cup slots to form a whole, which can ensure the sturdiness or strength of the reflector cup.

[0037] In another embodiment, reference Figure 8a , 8b When viewed from the front, the reflector cup of the 8c is circular. Inside the circle, there are three cup grooves 21 that overlap each other. The front of each cup groove 21 is fan-shaped. There is a light source through hole 22 in the middle of each of the three cup grooves 21. The three light source through holes 22 are connected to form an equilateral triangle.

[0038] In some embodiments, the circular interior of the reflector cup is further provided with a laser emitter through-hole 23, which is located outside the three cup grooves 21. The laser emitter through-hole 23, the center of the circle, and at least one light source through-hole 22 are on a straight line. In some embodiments, the laser emitter through-hole 23 can be located anywhere outside the three cup grooves 21.

[0039] Preferably, the aperture of the laser emitter through-hole 22 is smaller than the aperture of the single light source through-hole 22.

[0040] refer to Figure 9 The handheld lighting device according to this application embodiment includes a lamp head assembly, which includes a reflector cup retaining ring 24, a glass lens 25, a glass lens retaining ring 26, and as shown in the figure. Figure 8a , 8b As described in 8c, the glass lens 25 is cylindrical, a portion of the reflector retaining ring 24 is fitted inside the step at the front edge of the reflector, and the glass lens retaining ring 26 is located between the glass lens 25 and the reflector, and the glass lens retaining ring 26 and the reflector retaining ring 24 are in close contact with each other.

[0041] In practical use, the lamp head assembly also includes a lamp head front cover, a lamp head rear cover, and a lamp bead substrate. The lamp head front cover and the lamp head rear cover seal the lamp bead substrate and the aforementioned reflector cup retaining ring 24, glass lens 25, glass lens retaining ring 26, and as shown in the figure. Figure 8a , 8b Similar to the reflector described in 8c, the handheld lighting device also includes a body, a battery housed within the body, the battery supplying power to the LED substrate in the lamp head assembly, and the lamp head assembly mounted at one end of the body. The handheld lighting device may also include a handle or carrying handle assembly mounted on one side of the body.

[0042] In this embodiment, the function and installation method of the laser emitter through-hole 23 are the same as those described in the previous embodiment, and will not be repeated here. The laser emitter can be fixed inside the front or rear cover of the lamp head and is electrically connected to the lamp bead substrate.

[0043] This application discloses a reflector cup structure and its application in a handheld lighting device. The reflector cup has three light source through-holes arranged at the vertices of an equilateral triangle, with each slot spaced apart to ensure independence. This design not only ensures light is concentrated in the central area of ​​the lamp head but also achieves 360° omnidirectional lighting coverage through the cooperation of the three light sources. Furthermore, due to the independence of each light source angle, the light source area in the central region of the lamp is increased, thereby enhancing the lighting range. The reflector cup also has pre-drilled mounting holes for a laser emitter, facilitating its integration. In disaster relief scenarios such as fires and heavy fog, the laser emitter can assist in observing the surface movement of objects such as smoke, helping rescuers quickly identify terrain, effectively track smoke dynamics, avoid entering deep into the fire, and thus improve the efficiency and safety of rescue operations.

[0044] It should be understood that the phrase "an embodiment" or "one embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of this disclosure. Therefore, "in one embodiment" or "in one embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. The above-mentioned embodiment numbers are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0045] The above description is merely a preferred embodiment of this disclosure and does not limit the patent scope of this disclosure. Any equivalent structural transformations made using the contents of this specification and drawings under the inventive concept of this disclosure, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this disclosure.

Claims

1. A reflective cup, characterized in that, When viewed from the front, the reflector cup has a triangular shape with a chamfered R-angle. Inside the triangle are three cup grooves, which are spaced a certain distance apart. The front of each cup groove is circular, and a light source through hole is located in the center of each of the three cup grooves. The three light source through holes are connected to form an equilateral triangle.

2. The reflector cup according to claim 1, characterized in that, The triangle has a laser emitter through-hole, which does not overlap with the three cup grooves.

3. The reflector cup according to claim 2, characterized in that, The three cups are equidistant from each other and are the same size. The distances from the laser emitter aperture to the three light source apertures are all equal.

4. The reflector cup according to claim 3, characterized in that, The distance D between the three cups satisfies R / 2 ≤ D < R, where R is the radius of a single cup.

5. The reflector cup according to claim 2, characterized in that, The aperture of the laser emitter is smaller than the aperture of a single light source through-hole.

6. A handheld lighting device, characterized in that, The lamp head assembly includes a lamp head window, a sealing ring, and a reflector as described in any one of claims 1-5. The front of the lamp head window is a triangle with a chamfered R-angle, and the edge of the lamp head window is stepped. The front of the reflector is embedded in the lamp head window, and the sealing ring is sealed at the step.

7. A reflective cup, characterized in that, When viewed from the front, the reflector cup is circular, with three overlapping grooves inside. Each groove has a fan-shaped front, and a light source through hole is located in the middle of each groove. The three light source through holes are connected to form an equilateral triangle.

8. The reflector cup according to claim 7, characterized in that, The circle also has a laser emitter through hole inside, which is located outside the three cup grooves. The laser emitter through hole, the center of the circle, and at least one light source through hole are on a straight line.

9. The reflector cup according to claim 8, characterized in that, The aperture of the laser emitter is smaller than the aperture of a single light source through-hole.

10. A handheld lighting device, characterized in that, The lamp head assembly includes a reflector cup retaining ring, a glass lens, a glass lens retaining ring, and a reflector cup as described in any one of claims 7-9. The glass lens is cylindrical, a portion of the reflector cup retaining ring is fitted inside a step at the front edge of the reflector cup, and the glass lens retaining ring is located between the glass lens and the reflector cup, with the glass lens retaining ring and the reflector cup retaining ring fitting together.

Images