Angle-adjustable lamp

Abstract

The utility model relates to an angle-adjustable lamp, and belongs to the technical field of optical lenses. The lamp comprises a lamp shell, a luminous source, a light outlet and a lens body. The lens body is provided with a light inlet face, a total reflection face and a light outlet face. The lens body can swing relative to the luminous source through an angle adjusting structure (the fixed groove and the arc-shaped groove are matched with the fixed shaft and the movable shaft), and the light incident angle is adjusted. During swinging, the path of light rays is changed through the total reflection surface, so that the emergent angle of the light rays is changed, and the illumination direction is changed. The structure is simple and compact, manual adjustment is flexible, the problem that a traditional lamp is single in function is solved, and the lamp is suitable for ground foot lamps, atmosphere lamps and other scenes.

Description

Technical Field

[0001] This utility model relates to the field of optical lenses, and in particular to an adjustable-angle lamp. Background Technology

[0002] The beam angle of existing fixed floor lights is not adjustable. The installation position of floor lights can be high or low, but the angle is fixed. If the floor light is installed high, the illuminated area is larger, and if it is installed low, the illuminated area is smaller. Therefore, the reserved hole position needs to be very precise when installing floor lights, which is not flexible. Utility Model Content

[0003] In view of the above situation, it is necessary to provide an adjustable angle lamp (1) that solves at least one of the above problems, comprising:

[0004] A lamp housing (11) is provided with a light source (12) and a light outlet (13);

[0005] A lens body (2) is disposed within the lamp housing (11), and the lens body (2) comprises:

[0006] A light-receiving surface (21) is provided at its bottom for receiving light incident from the light source (12);

[0007] A reflecting surface (22) is provided on its inclined surface for reflecting light rays incident from the light-incoming surface (21) to the side of the lens body (2);

[0008] And a light-emitting surface (23) is provided on the side of the lens body (2) for outputting light reflected by the reflective surface (22); wherein, the light-inlet surface (21) is arranged facing the light source (12), and the light-emitting surface (23) is arranged facing the light outlet (13);

[0009] An angle adjustment structure (3) is used to connect the lens body (2) and the lamp housing (11), and to allow the lens body (2) to swing relative to the light source (12) to adjust the incident angle of the light emitted from the light source (12) into the light-inlet surface (21).

[0010] Preferably, the angle adjustment structure (3) includes:

[0011] At least one fixing groove (31) and at least one arc-shaped groove (32) are provided on the inner sidewall of the lamp housing (11);

[0012] It also includes at least a fixed axis (33) and at least one movable axis (34), the fixed axis (33) and the movable axis (34) being disposed on the outer side wall of the lens body (2).

[0013] Preferably, when the lens body (2) is assembled in the lamp housing (11), the fixed axis (33) is rotatably accommodated in the fixed groove (31), and the movable axis (34) is slidably accommodated in the arc groove (32).

[0014] Preferably, the reflecting surface (22) is a total reflection surface, used to reflect the light incident from the light-incoming surface (21) in a total reflection manner. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of an adjustable-angle lamp according to an embodiment of the present invention.

[0016] Figure 2 This is a schematic diagram of the adjustable-angle lamp swinging at different angles according to an embodiment of the present invention.

[0017] Figure 3 This is a schematic diagram of the lens body according to an embodiment of the present invention. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the adjustable-angle lamp of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.

[0019] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "center," "longitudinal," "lateral," "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art will be able to understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] The following will be combined with the appendix Figures 1 to 3 The specific implementation methods of this solution are described in detail below. It should be understood that the descriptions here are merely examples and are not intended to limit the scope of this solution.

[0022] Structural composition and assembly:

[0023] Reference Figure 1 and Figure 2 This embodiment of the solution provides an adjustable angle lamp (1), which mainly includes a lamp housing (11), a light source (12), a lens body (2), and an angle adjustment structure (3).

[0024] The lamp housing (11) can be made of metal (such as aluminum alloy) or high-strength engineering plastic, and has an internal cavity. The light source (12) is usually an LED chip, which is fixedly mounted on a printed circuit board (PCB) at the bottom of the cavity, and its position remains constant when the lamp is working. The lamp housing (11) has a light outlet (13) on its side or top surface to allow light to be emitted.

[0025] The lens body (2) is a specially designed optical element, injection molded from a high-transmittance material. For example... Figure 3 As shown, it integrally comprises three key optical surfaces: a light-inlet surface (21) at the bottom, a reflective surface (22) tilted at a certain angle, and a light-outlet surface (23) on the side.

[0026] The angle adjustment structure (3) is the core of the function. In this embodiment, it consists of a fixed groove (31) and an arc groove (32) on the inner wall of the lamp housing (11), and a fixed axis (33) and a movable axis (34) on both sides of the lens body (2). During assembly, the lens body (2) is placed into the lamp housing (11), so that the fixed axes (33) on both sides are engaged in the fixed groove (31), and the movable axis (34) is embedded in the arc groove (32). In this way, the lens body (2) swings stably with the fixed axis (33) as the center and the movable axis (34) sliding in the arc groove (32).

[0027] Furthermore, toothed patterns (not shown in the figure) can be arranged in the arc groove (32), and elastic material can be wrapped around the movable shaft (34). When adjusting the angle, the movable shaft (34) is squeezed and deformed to pass through the toothed patterns and is fixed, thus completing the angle adjustment and fixing.

[0028] Working principle and effect adjustment:

[0029] The essence of this scheme lies in controlling the initial conditions of the light entering the lens by changing the angle of the lens (2) relative to the fixed light source (12), thereby controlling the final beam shape.

[0030] like Figure 2 As shown, when the lens body (2) swings to a starting position (e.g., the movable shaft (34) is located in the middle of the arcuate groove (32), the light emitted from the light source (12) enters the light-entry surface (21) at a near-vertical angle (first incident angle). After entering the lens, the light propagates to the inclined reflecting surface (22). Through precise optical design, the total internal reflection (TIR) ​​condition is met here, and the light is reflected efficiently. Afterward, the light propagates to the light-exiting surface (23) and exits. In this state, due to the specific combination of the incident angle and the lens curvature, the light emitted from the light-exiting surface (23) is more parallel and concentrated.

[0031] like Figure 2 As shown, when the user gently moves the edge of the lens body (2) with their finger or other object through the light outlet (13), causing it to swing around the fixed axis (33) to its limit position, the movable axis (34) slides to a new position in the arc groove (32). At this time, the lens body (2) tilts.

[0032] For a fixed-position light source (12), the incident angle of its light entering the light-incoming surface (21) changes significantly (becoming the second incident angle). This change in initial conditions leads to changes in the entire subsequent optical path: the propagation path of the light inside the lens, the reflection point and angle on the reflecting surface (22), and the final refraction angle on the light-exiting surface (23) all change accordingly. The macroscopic effect is that the emitted light is upward-facing compared to state one. Suitable for adjusting at lower installation positions.

[0033] like Figure 2 As shown, when the user swings the lens body (2) to another extreme position (for example, the movable axis (34) is located at the other end of the arc groove (32)), the light enters the light-entry surface (21) at an angle (third incident angle). After being reflected by the reflecting surface (22), the light exits from the light-exit surface (23) at a downward angle. This is suitable for adjusting the lens at a higher mounting position.

[0034] In summary, this solution, through a simple yet ingenious internal lens swing mechanism, endows previously single-function floor lights and other lighting fixtures with unprecedented flexibility and expressiveness. Users can adjust the installation position according to their actual needs, whether it is high or low.

[0035] The above description is merely a preferred embodiment of this solution and is not intended to limit the scope of protection of this solution. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this solution should be included within the scope of protection of this solution.

Claims

1. An adjustable-angle lamp (1), characterized in that, include: A lamp housing (11) is provided with a light source (12) and a light outlet (13); A lens body (2) is disposed within the lamp housing (11), and the lens body (2) comprises: A light-receiving surface (21) is provided at its bottom for receiving light incident from the light source (12); A reflecting surface (22) is provided on its inclined surface for reflecting light rays incident from the light-incoming surface (21) to the side of the lens body (2); And a light-emitting surface (23) is provided on the side of the lens body (2) for outputting light reflected by the reflective surface (22); wherein, the light-inlet surface (21) is arranged facing the light source (12), and the light-emitting surface (23) is arranged facing the light outlet (13); An angle adjustment structure (3) is used to connect the lens body (2) and the lamp housing (11), and to allow the lens body (2) to swing relative to the light source (12) to adjust the incident angle of the light emitted from the light source (12) into the light-inlet surface (21).

2. The adjustable angle lamp (1) according to claim 1, characterized in that, The angle adjustment structure (3) includes: At least one fixing groove (31) and at least one arc-shaped groove (32) are provided on the inner sidewall of the lamp housing (11); It also includes at least a fixed axis (33) and at least one movable axis (34), the fixed axis (33) and the movable axis (34) being disposed on the outer side wall of the lens body (2).

3. The adjustable angle lamp (1) according to claim 2, characterized in that, When the lens body (2) is assembled in the lamp housing (11), the fixed axis (33) is rotatably accommodated in the fixed groove (31), and the movable axis (34) is slidably accommodated in the arc groove (32).

4. The adjustable-angle lamp (1) according to any one of claims 1 to 3, characterized in that, The reflecting surface (22) is a total reflection surface, used to reflect the light rays incident from the light-incoming surface (21) in a total reflection manner.

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