Light source module capable of customizing light spot shape and angle

Abstract

The utility model discloses a light source module capable of customizing the shape and angle of a light spot. The light source module mainly comprises a light source, a special-shaped light guide bar, a lens group and a driving plate, wherein the light source is laser or an LED (light-emitting diode); the special-shaped light guide rod is arranged in the light emitting direction of the front end of the light source; the special-shaped light guide bar is used for shaping light emitted by the light source into the shape corresponding to the end face of the special-shaped light guide bar. The lens group is arranged at the front end of the special-shaped light guide rod and is used for projecting the end surface of the special-shaped light guide rod to realize light supplement; the lens group is a fixed-focus lens group or a variable-focus lens group; and the driving plate is used for driving the light source and / or the lens group to work. According to the technical scheme provided by the utility model, the shape and angle of the light spot can be customized, so that the uniformity of the light spot is high, and the average power of products is low.

Description

Technical Field

[0001] The utility model relates to the technical field of fill light products, in particular to a light source module with a customizable spot shape and angle. Background Art

[0002] With the gradual popularization and application of AI technology in the security field, especially for night scenes, the requirements of AI algorithms and cameras for the power, spot shape, angle, uniformity, etc. of fill lights are getting higher and higher. For existing fill light products, the overall power of the whole machine is relatively high, the spot shape is basically circular, the angle is relatively large and cannot be zoomed, and the uniformity is relatively low, mostly Gaussian spots. Therefore, the optical effect of fill lights has become one of the bottlenecks of security products. Content of the Utility Model

[0003] In order to overcome the shortcomings of the prior art, the utility model provides a light source module with a customizable spot shape and angle, which can customize the spot shape and angle, so that the spot uniformity is high and the average power of the product is low.

[0004] A light source module with a customizable spot shape and angle includes:

[0005] A light source, where the light source is a laser or an LED;

[0006] A special-shaped light guide rod, which is arranged in the light-emitting direction at the front end of the light source; the special-shaped light guide rod is used to shape the light emitted by the light source into the shape corresponding to the end face of the special-shaped light guide rod;

[0007] A lens group, which is arranged at the front end of the special-shaped light guide rod and is used to project the end face of the special-shaped light guide rod to achieve fill light; the lens group is a fixed-focus lens group or a zoom lens group;

[0008] A driving board, which is used to drive the light source and / or the lens group to work.

[0009] Optionally, when the light source is a laser, a homogenizing sheet is further included; the homogenizing sheet is arranged between the light source and the special-shaped light guide rod.

[0010] Optionally, the homogenizing sheet is a vibrating homogenizing sheet or a rotating homogenizing sheet.

[0011] Optionally, the end face shape of the special-shaped light guide rod is any one of a circle, a square, a rectangle, and an ellipse.

[0012] A light source module capable of customizing the spot shape and angle provided by the present utility model shapes the light emitted by the light source through a special-shaped light guide rod to obtain the expected shape; at the same time, projection and supplementary lighting are performed through a zoom or fixed-focus lens group, which can make the spot uniformity of the supplementary light lamp product higher and the edge cut-off line higher, and play a role in customizing the spot shape and angle. At the same time, the technical solution provided by the present utility model has simple components and is easy to implement, can greatly reduce the average power of the product, and has a wide range of application scenarios. Brief Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of a light source module capable of customizing the spot shape and angle in an embodiment of the present utility model. Detailed Description of the Embodiment

[0014] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0015] Provide a light source module capable of customizing the spot shape and angle, as Figure 1 shown, mainly including: a light source, a special-shaped light guide rod, a lens group and a driving board.

[0016] Among them, the light source is a laser or an LED, which is used to provide a light source for the whole module; when the light source is driven, it can be made into continuous light or pulsed light.

[0017] The special-shaped light guide rod is arranged in the light-emitting direction at the front end of the light source, and the light emitted by the light source passes through the end face of the special-shaped light guide rod to form a spot shape corresponding to the shape of the end face. The end face of the special-shaped light guide rod includes, but is not limited to, a circle, a square, a rectangle or an ellipse, and its shape is the shape expected by the user.

[0018] The lens group is arranged at the front end of the special-shaped light guide rod and is used to project the end face of the special-shaped light guide rod and realize supplementary lighting. The lens group can be a fixed-focus lens group or a zoom lens group, which is convenient for adjusting the spot angle according to needs.

[0019] The driving board is used to drive the light source and / or the lens group to work.

[0020] When the present light source module works, the light emitted by the light source passes through the special-shaped light guide rod and the lens group in sequence to form a spot shape and angle that meet the user's expectations, and make the spot uniformity high and the edge cut-off property high.

[0021] Furthermore, when the light source is a laser, a homogenizer is further included; the homogenizer is disposed between the light source and the shaped light guide rod. The homogenizer is used to homogenize laser speckles. It can be understood that, at this time, the driving board can be used to drive the homogenizer to work.

[0022] Further preferably, the homogenizer is a vibrating homogenizer or a rotating homogenizer; that is, the homogenizer moves by vibrating or rotating to perform laser speckle homogenization.

[0023] It can be understood that the above structural components are the core components of the light source module with a customizable spot shape and angle. The prior art in other fill light products will not be elaborated here, nor will it affect the function implementation of the above core components.

[0024] The above is an elaboration of the light source module with a customizable spot shape and angle of the present invention, which is used to help understand the present invention; however, the implementation manner of the present invention is not limited by the above embodiments. Any changes, modifications, substitutions, combinations, and simplifications made without departing from the principle of the present invention shall be equivalent replacement methods and are all included in the protection scope of the present invention.

Claims

1. A light source module with customizable light spot shape and angle, characterized in that: include: A light source, wherein the light source is a laser or an LED; A special-shaped light guide rod, which is arranged in the light emitting direction of the front end of the light source; the special-shaped light guide rod is used to shape the light emitted by the light source into a shape corresponding to the end surface of the special-shaped light guide rod; A lens group, which is arranged at the front end of the special-shaped light guide rod and is used to realize fill light after projecting the end face of the special-shaped light guide rod; The lens group is a fixed-focus lens group or a zoom lens group; A driving board, wherein the driving board is used to drive the light source and / or the lens group to operate.

2. The light source module with customizable light spot shape and angle as claimed in claim 1, characterized in that: When the light source is a laser, a homogenizing plate is further included; the homogenizing plate is arranged between the light source and the special-shaped light guide rod.

3. The light source module with customizable light spot shape and angle as claimed in claim 2, characterized in that: The homogenizing plate is a vibrating homogenizing plate or a rotating homogenizing plate.

4. The light source module with customizable light spot shape and angle according to any one of claims 1 to 3, characterized in that: The end face shape of the special-shaped light guide rod is any one of circular, square, rectangular and elliptical.

Images