Optical component and flashlight

Abstract

The present invention relates to an optical component and a flashlight. The optical component is provided with a convex reflecting surface and a concave reflecting surface on the inner wall of a reflective cup covering a light source, and a convex portion convex toward the light source and a concave portion concave toward the light source are provided on a lens installed at one end of the reflective cup away from the light source, wherein the reflective cup and / or the lens can rotate with the axis of the reflective cup as a rotation axis so that the convex portion is opposite to the convex reflecting surface and the concave portion is opposite to the concave reflecting surface, and the lens emits concentrated light; when the convex portion is opposite to the concave reflecting surface and the concave portion is opposite to the convex reflecting surface, the lens emits flood light, and the switching between concentrated lighting and flood lighting can be realized by rotating the reflective cup and / or the lens, and the volume is very small and the space utilization rate is extremely high.

Description

Technical Field

[0001] The invention relates to the field of lighting, in particular to an optical component and a flashlight. Background Art

[0002] When users use optical products, they may need to adjust the illumination range and illumination intensity of the light source. For example, when using a flashlight, users may want the flashlight to be able to switch between spotlighting and floodlighting to adapt to different usage scenarios.

[0003] In order to meet the needs of users, optical products equipped with distance adjustment mechanisms have appeared on the market. The distance adjustment mechanism can adjust the distance between the light source and the convex lens. When the light source is close to the convex lens, a floodlighting effect can be obtained. When the light source moves to the focal position of the convex lens, a spotlighting effect can be obtained. Although this solution is simple, the distance between the light source and the convex lens needs to be adjusted when switching between spotlighting and floodlighting. Therefore, the volume occupied by the distance adjustment mechanism is large and the space utilization rate is extremely low. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an optical component, aiming to solve the problem in the prior art that when optical products switch between spotlighting and floodlighting, the distance between the light source and the convex lens needs to be adjusted, so the volume occupied by the distance adjustment mechanism is large and the space utilization rate is extremely low.

[0005] In a first aspect, the present invention provides an optical component, comprising: a light source; a reflective cup, which is covered on the light source, the inner wall of the reflective cup comprising a convex reflective surface and a concave reflective surface; a lens, which is installed at one end of the reflective cup away from the light source, the lens having a raised portion protruding toward the light source and a recessed portion recessed toward the light source; wherein the reflective cup and / or the lens can rotate with the axis of the reflective cup as a rotating axis, so that when the raised portion is opposite to the convex reflective surface and the recessed portion is opposite to the concave reflective surface, the lens emits focused light; when the raised portion is opposite to the concave reflective surface and the recessed portion is opposite to the convex reflective surface, the lens emits flood light.

[0006] Furthermore, the reflective cup is in the shape of a dome with openings at both ends, the opening close to the top of the dome is covered by the light source, the inner wall of the reflective cup is gradually recessed from the top of the dome to the bottom to form the concave reflective surface; and the inner wall of the reflective cup is gradually recessed from the top of the dome to the bottom to form the convex reflective surface, wherein the degree of recess of the convex reflective surface is smaller than that of the concave reflective surface.

[0007] Furthermore, on the axial section of the reflective cup, the convex reflective surface has a first interception point away from the light source, the concave reflective surface has a second interception point away from the light source, the convex reflective surface is at least partially enclosed by a parabola where the first interception point, the light source, and the second interception point are located, and the concave reflective surface is at least partially outside the enclosed parabola.

[0008] Furthermore, the convex reflecting surface and the concave reflecting surface are arranged in sections along the circumference of the inner wall of the reflective cup.

[0009] Furthermore, with the center of the reflective cup as the center of the circle, the degree of the central angles of the convex reflective surface and the concave reflective surface corresponding to the circle are consistent.

[0010] Furthermore, the convex reflecting surfaces and the concave reflecting surfaces are arranged alternately.

[0011] Furthermore, the lens further comprises a frame, which is arranged around the raised portion and the recessed portion, and the frame is mounted on an end of the reflective cup away from the light source.

[0012] Furthermore, the recessed portion is gradually recessed from the frame toward the axis direction of the frame.

[0013] Furthermore, the raised portion gradually rises from the frame toward the axis direction of the frame.

[0014] In a second aspect, the present invention further provides a flashlight, comprising: a tube shell; an optical component mounted on the tube shell, the optical component being the optical component described in the first aspect; an adjusting member connected to the reflective cup, for driving the reflective cup to rotate with the axis of the reflective cup as the axis; or, the adjusting member connected to the lens, for driving the lens to rotate with the axis of the reflective cup as the axis.

[0015] The beneficial effects of the present invention are as follows: by providing a convex reflecting surface and a concave reflecting surface on the inner wall of a reflective cup covering the light source, and providing a convex portion protruding toward the light source and a concave portion concave toward the light source on a lens installed at one end of the reflective cup away from the light source, wherein the reflective cup and / or the lens can rotate with the axis of the reflective cup as a rotating axis, so that when the convex portion is opposite to the convex reflecting surface and the concave portion is opposite to the concave reflecting surface, the lens emits concentrated light; when the convex portion is opposite to the concave reflecting surface and the concave portion is opposite to the convex reflecting surface, the lens emits flood light. The switching between concentrated lighting and flood lighting can be realized by rotating the reflective cup and / or the lens, and there is no need to adjust the distance between the light source and the lens, so the volume is very small and the space utilization rate is extremely high. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The specific implementation of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments, in which:

[0017] Figure 1 is an exploded view of an embodiment of the present invention;

[0018] Figure 2 is a schematic diagram of a lens structure according to an embodiment of the present invention;

[0019] Figure 3 is a half-section view of an embodiment of the present invention;

[0020] Figure 4 is a schematic diagram of floodlighting according to an embodiment of the present invention;

[0021] Figure 5 is a schematic diagram of spotlight illumination according to an embodiment of the present invention;

[0022] Figure 6 is a schematic structural diagram of a reflective cup according to another embodiment of the present invention;

[0023] Figure 7 Schematic diagram of a lens structure according to another embodiment of the present invention.

[0024] The reference numerals in the figures are:

[0025] 1. Optical component; 11. Light source; 12. Reflective cup; 121. Convex reflective surface; 122. Concave reflective surface; 123. Opening; 13. Lens; 131. Raised portion; 132. Recessed portion; 133. Frame; 14. First cutoff point; 15. Second cutoff point. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. Now, in conjunction with the accompanying drawings, the preferred embodiments of the present invention are described in detail.

[0027] The present invention provides an optical component 1, such as Figure 1-3 As shown, the optical component 1 includes: a light source 11, a reflector cup 12 and a lens 13. The reflector cup 12 is covered with the light source 11, and the inner wall of the reflector cup 12 includes a convex reflective surface 121 and a concave reflective surface 122. The lens 13 is installed at one end of the reflector cup 12 away from the light source 11, and the lens 13 includes / is provided with a protrusion 131 protruding toward the light source 11, and a concave portion 132 concave toward the light source 11. Among them, the reflector cup 12 and / or the lens 13 can rotate with the axis (not shown in the figure) of the reflector cup 12 as the rotation axis, so that when the protrusion 131 is opposite to the convex reflective surface 121, and the concave portion 132 is opposite to the concave reflective surface 122, the lens emits focused light; when the protrusion 131 is opposite to the concave reflective surface 122, and the concave portion 132 is opposite to the convex reflective surface 121, the lens emits flood light.

[0028] By implementing this embodiment, a convex reflecting surface 121 and a concave reflecting surface 122 are provided on the inner wall of the reflective cup 12 covering the light source 11, and a convex portion 131 convex toward the light source 11 and a concave portion 132 concave toward the light source 11 are provided on the lens 13 installed at the end of the reflective cup 12 away from the light source 11, wherein the reflective cup 12 and / or the lens 13 can rotate with the axis of the reflective cup 12 as the rotation axis, so that when the convex portion 131 is opposite to the convex reflecting surface 121 and the concave portion 132 is opposite to the concave reflecting surface 122, the lens emits focused light; when the convex portion 131 is opposite to the concave reflecting surface 122 and the concave portion 132 is opposite to the convex reflecting surface 121, the lens emits flood light. Figure 4 and Figure 5 , only the reflective cup 12 and / or the lens 13 need to be rotated to switch between spotlighting and floodlighting, and there is no need to adjust the distance between the light source 11 and the lens 13. Therefore, the volume is very small, the space utilization rate and the light transmittance are extremely high, and the spotlight and floodlighting can always maintain a good light spot shape during the conversion process. The existing technology of adjusting the distance between the light source and the lens has a square chip shadow shape when spotlighting, and the aesthetics are not as good as this embodiment.

[0029] In a specific embodiment, Figure 1-3 As shown, the reflective cup 12 is in the shape of a dome with openings at both ends, and an opening 123 near the top of the dome covers the light source 11. The inner wall of the reflective cup 12 gradually recesses from the top of the dome to the bottom to form a concave reflective surface 122; and gradually recesses from the top of the dome to the bottom to form a convex reflective surface 121, wherein the recess degree of the convex reflective surface 121 is smaller than that of the concave reflective surface 122.

[0030] Specifically, this embodiment can enhance the lighting effect of the optical component 1 under spotlighting and floodlighting, and the light spot formed on the object is more uniform and beautiful, and the user experience is better.

[0031] In a specific embodiment, Figure 1-3 As shown, on the axial section of the reflective cup 12, the convex reflective surface 121 has a first section point 14 away from the light source 11, and the concave reflective surface 122 has a second section point 15 away from the light source 11. The convex reflective surface 121 is at least partially enclosed by the parabola where the first section point 14, the light source 11, and the second section point 15 are located, and the concave reflective surface 122 is at least partially outside the enclosed parabola.

[0032] refer to Figure 4 and Figure 5By implementing this embodiment, the light emitted by the light source 11 is reflected by the convex reflecting surface 121 within the encirclement of the parabola, flows in a direction away from the axis of the reflective cup 12, and then changes the flow direction again through the lens 13 before being emitted. The light emitted by the light source 11 is reflected by the concave reflecting surface 122 outside the encirclement of the parabola, flows in a direction close to the axis of the reflective cup 12, and then changes the flow direction again through the lens 13 before being emitted.

[0033] In one embodiment, the convex reflecting surface 121 and the concave reflecting surface 122 are disposed in sections along the circumference of the inner wall of the reflective cup 12 .

[0034] In a specific embodiment, Figure 1-3 As shown, with the center of the reflective cup 12 as the center of the circle, the degree of the central angle (not shown in the figure) corresponding to the convex reflective surface 121 and the concave reflective surface 122 is consistent.

[0035] Specifically, the central angles corresponding to the convex reflective surface 121 and the concave reflective surface 122 are consistent in degree, which can enhance the lighting effect of the optical component 1 under spotlighting and floodlighting, make the light spot formed on the object more uniform and beautiful, and provide a better user experience.

[0036] In a specific embodiment, Figure 1-3 As shown, the convex reflecting surfaces 121 and the concave reflecting surfaces 122 are arranged alternately.

[0037] Specifically, the alternating arrangement of the convex reflective surface 121 and the concave reflective surface 122 can enhance the lighting effect of the optical component 1 under spotlighting and floodlighting, and the light spot formed on the object is more uniform and beautiful, providing a better user experience.

[0038] In one embodiment, if Figure 1-3 As shown, the lens 13 further includes a frame 133 which surrounds the raised portion 131 and the recessed portion 132 . The frame 133 is installed at one end of the reflective cup 12 away from the light source 11 .

[0039] In a specific embodiment, Figure 1-3 As shown, the recessed portion 132 is gradually recessed from the frame 133 toward the axis direction of the frame 133 .

[0040] Specifically, the closer the inner wall of the reflective cup 12 is to the light source 11, the greater the slope of the reflected light, so different light rays irradiate the recessed portion 132 at different angles. The recessed portion 132 of this embodiment is gradually recessed from the frame 133 toward the axis direction of the frame 133, so that the light rays emitted through the recessed portion 132 can be emitted in the same direction. By implementing this embodiment, the optical component 1 has a better lighting effect under floodlighting, the light spot formed on the object is more uniform and beautiful, and the user experience is better.

[0041] In one embodiment, if Figure 1-3 As shown, the protrusion 131 gradually protrudes from the frame 133 toward the axis direction of the frame 133 .

[0042] Specifically, the closer the inner wall of the reflective cup 12 is to the light source 11, the greater the slope of the reflected light. Therefore, different light rays irradiate the protrusion 131 at different angles. The protrusion 131 of this embodiment gradually bulges from the frame 133 toward the axis of the frame 133, so that the light rays emitted through the protrusion 131 can be emitted in the same direction. By implementing this embodiment, the optical component 1 has a better lighting effect under spotlighting, the light spot formed on the object is more uniform and beautiful, and the user experience is better.

[0043] In one embodiment, if Figure 1-3 As shown, the frame 133 is integrally formed with the raised portion 131 and the recessed portion 132 .

[0044] Specifically, the frame 133 , the raised portion 131 , and the recessed portion 132 are integrally formed to reduce mold making costs, thereby reducing the manufacturing cost of the optical component 1 .

[0045] In one embodiment, if Figure 1-3 As shown, a surface of the lens 13 away from the reflective cup 12 is provided with an etched structure (not shown in the figure).

[0046] Specifically, the etched structure can soften the light, making the emitted light of the optical component 1 softer.

[0047] Of course, it is understandable that the convex reflective surface 121, the concave reflective surface 122, the raised portion 131 and the recessed portion 132 are not limited to one, but may be N, where N>1, specifically, the reflective cup or lens (180 / N) degrees, can complete the conversion between spotlighting and floodlighting. The following examples are listed for explanation, such as Figure 6-7 As shown. There are two convex reflective surfaces 121, which are opposite to each other, and there are two concave reflective surfaces 122, which are opposite to each other. The convex reflective surfaces 121 and the concave reflective surfaces 122 are arranged alternately. There are two raised portions 131, which are opposite to each other, and there are two recessed portions 132, which are opposite to each other. The raised portions 131 and the recessed portions 132 are arranged alternately. Specifically, the reflective cup or lens rotates 90 degrees to complete the conversion between spotlighting and floodlighting.

[0048] The embodiment of the present invention shows an optical component 1, such as Figure 1-3As shown, the optical component 1 is provided with a convex reflecting surface 121 and a concave reflecting surface 122 on the inner wall of a reflective cup 12 covering the light source 11, and a convex portion 131 convex toward the light source 11 and a concave portion 132 concave toward the light source 11 are provided on a lens 13 installed at one end of the reflective cup 12 away from the light source 11, wherein the reflective cup 12 and / or the lens 13 can rotate with the axis of the reflective cup 12 as the rotation axis, so that when the convex portion 131 is opposite to the convex reflecting surface 121 and the concave portion 132 is opposite to the concave reflecting surface 122, the lens emits focused light; when the convex portion 131 is opposite to the concave reflecting surface 122 and the concave portion 132 is opposite to the convex reflecting surface 121, the lens emits flood light. Figure 4 and Figure 5 , only the reflective cup 12 and / or the lens 13 need to be rotated to switch between spotlighting and floodlighting, and there is no need to adjust the distance between the light source 11 and the lens 13. Therefore, the volume is very small, the space utilization rate and the light transmittance are extremely high, and the spotlight and floodlighting can always maintain a good light spot shape during the conversion process. The existing technology of adjusting the distance between the light source and the lens has a square chip shadow shape when spotlighting, and the aesthetics are not as good as this embodiment.

[0049] The present invention also provides a flashlight (not shown in the figure), such as Figure 1-3 As shown, the flashlight comprises: a barrel shell (not shown in the figure), an optical component 1 and an adjusting member (not shown in the figure). The optical component 1 is mounted on the barrel shell, and the optical component 1 is the optical component 1 of the above embodiment. The adjusting member is connected to the reflective cup 12, and is used to drive the reflective cup 12 to rotate with the axis of the reflective cup 12 as the rotating axis; or, the adjusting member is connected to the lens 13, and is used to drive the lens 13 to rotate with the axis of the reflective cup 12 as the rotating axis.

[0050] Specifically, the present embodiment adjusts the adjusting member to drive the reflective cup 12 to rotate with the axis of the reflective cup 12 as the rotating axis; or drives the lens 13 to rotate with the axis of the reflective cup 12 as the rotating axis, so as to realize the switching between spotlighting and floodlighting, without adjusting the distance between the light source 11 and the lens 13, so the volume is very small, the space utilization rate and the light transmittance are extremely high, and the spotlight and floodlighting can always maintain a good light spot shape during the conversion process, and the existing technology of adjusting the distance between the light source and the lens has a square chip shadow shape when spotlighting, and the aesthetics are not as good as the present embodiment.

[0051] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. For those skilled in the art, the technical solutions described in the above embodiments can be modified, or some of the technical features therein can be replaced by equivalents; and all these modifications and replacements should fall within the protection scope of the claims attached to the present invention.

Claims

1. An optical component, characterized in that: include: light source; A reflective cup, which is covered on the light source, wherein the inner wall of the reflective cup comprises a convex reflective surface and a concave reflective surface; the reflective cup is in the shape of a dome with openings at both ends, the opening close to the top of the dome is covered on the light source, the inner wall of the reflective cup gradually concave from the top of the dome to the bottom to form the concave reflective surface; and the convex reflective surface is gradually concave from the top of the dome to the bottom to form the convex reflective surface, the concave degree of the convex reflective surface is smaller than the concave degree of the concave reflective surface; on the axial section of the reflective cup, the convex reflective surface has a first interception point away from the light source, the concave reflective surface has a second interception point away from the light source, the convex reflective surface is at least partially enclosed by the parabola where the first interception point, the light source and the second interception point are located, and the concave reflective surface is at least partially outside the encirclement of the parabola; A lens is mounted on an end of the reflective cup away from the light source, and the lens is provided with a convex portion protruding toward the light source and a concave portion concave toward the light source; Wherein, the reflective cup and / or the lens can rotate with the axis of the reflective cup as the rotation axis, so that when the raised portion is opposite to the convex reflecting surface, and the recessed portion is opposite to the concave reflecting surface, the lens emits concentrated light; when the raised portion is opposite to the concave reflecting surface, and the recessed portion is opposite to the convex reflecting surface, the lens emits flood light.

2. The optical component according to claim 1, characterized in that: The convex reflecting surface and the concave reflecting surface are arranged in sections along the circumference of the inner wall of the reflective cup.

3. The optical component according to claim 2, characterized in that: With the center of the reflective cup as the center of the circle, the degree of the central angle corresponding to the convex reflective surface and the concave reflective surface is consistent.

4. The optical component according to claim 3, characterized in that: The convex reflecting surfaces and the concave reflecting surfaces are arranged alternately.

5. The optical component according to any one of claims 1 to 4, characterized in that: The lens further comprises a frame which surrounds the raised portion and the recessed portion, and the frame is installed at an end of the reflective cup away from the light source.

6. The optical component according to claim 5, characterized in that: The recessed portion is gradually recessed from the frame toward the axis direction of the frame.

7. The optical component according to claim 6, characterized in that: The protrusion gradually protrudes from the frame toward the axis direction of the frame.

8. A flashlight, characterized in that: include: Shell; An optical component, which is mounted on the cylindrical shell, and the optical component is the optical component according to any one of claims 1 to 7; The adjusting member is connected to the reflective cup and used to drive the reflective cup to rotate with the axis of the reflective cup as the rotating axis; or the adjusting member is connected to the lens and used to drive the lens to rotate with the axis of the reflective cup as the rotating axis.

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