Vehicle lamp

Abstract

The invention discloses a vehicle lamp. The vehicle lamp is suitable for being installed on a vehicle and comprises a lens, a reflecting part, a light-emitting part, a shielding sheet and a grating element. The lens is located on an optical axis extending in the length direction of the vehicle and comprises a light incident surface, a light outlet surface opposite to the light incident surface anda rear focal point positioned on the optical axis. The reflecting part comprises a first focal point and a second focal point which allows reflected light to pass through. The light-emitting part emits light towards the reflecting part. The shielding sheet is used for enabling light emitted by the lens to form a light and shade cut-off line. The grating unit is located below the optical axis andlocated between the rear focal point and the lens, and comprises a grating sheet, wherein the grating sheet is used for reflecting at least part of passing-through light and forms an included angle together with the optical axis, and the included angle ranges from 0 degree to 45 degrees. Through the grating unit for filtering part of passing-through light, the effect of reducing the light scattering and dispersion near the light and shade cut-off line is achieved.

Description

technical field [0001] The invention relates to a lighting device, in particular to a vehicle lamp. Background technique [0002] Existing a kind of car light such as the disclosed car light of the U.S. Patent No. 7736036 patent case, referring to the No. 7736036 patent case figure 2 and Figure 5 , the following instructions add the label at the time of the application. The car light mainly includes a projection lens 12 , a light emitting element 14 , and a reflector 16 . The projection lens 12 defines an optical axis Ax extending along the front-back direction, and includes a light incident surface 12 a and a light exit surface 12 b spaced apart along the optical axis direction. The luminous element 14 is located near the back focus of the projection lens 12 . The reflector 16 reflects light from the light emitting member 14 . A plurality of lens components 12As and 12Bs extending left and right and spaced up and down are formed on the light emitting surface 12b, and ...

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