Windowsill lamp reflector with Fresnel structure

Abstract

The invention discloses a windowsill lamp reflector with a Fresnel structure. The windowsill lamp reflector with the Fresnel structure comprises a light-emitting unit and a reflecting unit, wherein the reflecting unit is used for emitting light rays emitted by the light-emitting unit and comprises a plurality of reflecting parts and a connecting part used for connecting the plurality of reflectingparts; each reflecting part is in a curved surface shape; the inner surface of each reflecting part is a reflecting surface used for reflecting the light rays emitted by the light-emitting unit; thelight rays emitted by the light-emitting unit is reflected in the reflecting surface; the cross section of the reflecting surface of each reflecting part is parabolic; the focal points of parabolas ofthe cross sections of the reflecting surfaces of the plurality of reflecting parts are overlapped; the parabolic focal lengths of the sections of the reflecting surfaces of the plurality of reflecting parts are different; the closer the center position of the light-emitting unit is, the smaller the focal length of the parabola of the cross section of the reflecting surface of each reflecting partis. The windowsill lamp reflector with the Fresnel structure can increase the width of a light spot while the mounting volume is ensured.

Description

technical field [0001] The invention relates to a Fresnel structure window lamp reflector. Background technique [0002] The traditional Fresnel-structure window sill reflector is used to illuminate the top of the window sill and the walls on both sides, but for larger windows or when higher brightness is required, due to power problems, it cannot meet the requirements. The existing Fresnel structure window lamp reflector cannot increase the power due to the volume and heat dissipation problems; the conventional solution uses the lens method, there will be color separation problems, and the boundary of the light spot is not clear enough. [0003] CN201822000354.2 The window sill light reflector reflector with single curved surface Fresnel structure solves the above problems, but still has the defect of insufficient light spot width. Contents of the invention [0004] In order to solve the deficiencies of the prior art, the present invention provides a Fresnel structure wi...

AI Technical Summary

Problems solved by technology

[0002] The traditional Fresnel reflector for windowsill lights is used to illuminate the top of the window sill and the walls on both sides, but for larger windows, or when higher brightness is required, due to power problems, it cannot meet the requirements

Due to the size and heat dissipation of the existing Fresnel structure window lamp reflector, it is impossible to increase the power; the conventional solution uses the lens method, which will cause color separation problems, and at the same time, the boundary of the light spot is not clear enough

[0003] The window sill lamp reflector of CN201822000354.2's single-curved surface Fresnel structure solves the above problems, but still has the defect that the light spot width is not enough

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