Self-dimming lamp tube and dimming method

A technology of self-dimming and dimming lamps, which is applied in the parts and electrical components of TVs and color TVs, and can solve the problems of human eye damage, strong light, waste of electricity, etc.

CN113645744APending Publication Date: 2021-11-12江门市普州照明有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2021-11-12

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Abstract

The invention discloses a self-dimming lamp tube and a dimming method. The self-dimming lamp tube comprises a tube body, a light source, photographing modules, a photosensitive module, a signal processing module and a main controller, wherein two ends of the tube body are provided with plugs, the tube body is provided with an aluminum substrate, the aluminum substrate is provided with a driving module, the light source is packaged on the aluminum substrate and is electrically connected with the driving module, the number of the photographing modules is at least two, the photographing modules are arranged on the outer sides of the plugs, the photosensitive module is electrically connected with the photographing modules, and extracts environmental factors and obtains a detection signal according to image information collected by the photographingmodules, the signal processing module is arranged in the plug, is electrically connected with the photosensitive module, and is used for carrying out differential amplification on the detection signal and generating a brightness signal, and the main controller is used for receiving the brightness signal and controlling the output current of the driving module of the aluminum substrate. According to the invention, common-mode interference signals influencing the detection accuracy are eliminated, and the output brightness of the lamp tube is effectively and accurately adjusted according to the real brightness in the environment.
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Description

technical field

[0001] The invention relates to the field of lighting appliances, in particular to a self-adjusting lamp tube and a dimming method. Background technique

[0002] LED light tube refers to the light tube that uses LED as the light source. Compared with fluorescent tubes, it is more energy-saving, cheap, long-life, drop-resistant and simple in structure. It is a good substitute for fluorescent tubes in the future, and the brightness of existing tubes is limited The control method is completed by simple mechanical switches. Many lights are fully lit regardless of the brightness of the external environment, which wastes electricity and makes the light too strong, which may damage human eyes or other adverse effects. Contents of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the present invention proposes a self-dimming lamp tube, which can adjust the brightness according to...

Examples

Embodiment Construction

[0027] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0028] In the description of the present invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc. indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only In order to facilitate the description of the present invention and simplify the description, it does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific ...