F21S41/265

Headlight for vehicles
11248766 · 2022-02-15 · ·

A headlight for vehicles having a projection module containing a low beam primary lens and a first light source, a high beam primary lens and a second light source, a secondary lens arranged in the main beam direction in front of the low beam primary lens and the high beam primary lens, a secondary lens by means of which, in a low beam mode, in which only the first light source is activated, a first light bundle emitted from the low beam primary lens is mapped according to a specified low beam distribution and, in a high beam mode, in which the first light source and the second light source are activated, the first light bundle is mapped together with the second light bundle emitted from the high beam primary lens in order to produce the high beam distribution, wherein the high beam primary lens has compensator.

HEADLIGHT LENS FOR A VEHICLE HEADLIGHT
20170261169 · 2017-09-14 ·

A headlight lens for a vehicle headlight, the headlight lens having a body of transparent material. The monolithic body includes a light passage section having at least one optically operative light exit face and a light tunnel having at least one optically operative light entry face. The light tunnel transits into the light passage section via a bend being curved in its longitudinal extension, wherein the light tunnel at the bend has a smaller cross section than the light passage section at the bend and wherein the light passage section is configured for imaging the bend as a bright-dark-boundary.

Vehicular lighting
09759399 · 2017-09-12 · ·

There are instances of vehicular lighting in prior art where a significant amount of effectively distributed light radiating from a projection lens is lost. The invention is provided with a semiconductor-type light source (2) and a projection lens (3). The projection lens (3) has an optically active portion (32) transmitting light from the semiconductor-type light source (2), and an optically inactive portion (33). The optically inactive portion (33) of the projection lens (3) is provided with a trimmed portion (33U, 33D) resulting from cutting away a portion of a base shape. As a result, the invention allows the amount of loss in the effectively distributed light radiating from the projection lens (3) to be as small as possible.

LENS FOR LIGHTING DEVICE FOR MOTOR VEHICLES
20170254496 · 2017-09-07 · ·

Lens for a lighting device of a motor vehicle includes a rear face designed to be oriented toward a light source of the lighting device, and a convex front face designed to be oriented toward the roadway being illuminated. The lens has a median vertical plane designed to be substantially orthogonal to the roadway, the front face having a first zone of diffusion with microstructures adapted to diffuse the light emitted by the light source, the first zone of diffusion extending in the median vertical plane. The front face furthermore includes at least two second zones of diffusion each one having microstructures adapted to diffuse the light emitted by the light source, the two second zones of diffusion being situated on either side of the median vertical plane. The microstructures of the two zones of diffusion have a depth absolutely greater than the depth of the microstructures of the first zone of diffusion.

VEHICLE LAMP
20210404621 · 2021-12-30 ·

A vehicle lamp includes a light source unit; an incident lens unit that comprises a plurality of incident lenses on which light is incident from the light source unit; an exit lens unit that comprises a plurality of exit lenses outputting the light incident from the incident lens unit; and a shield unit that obstruct a part of the light travelling toward each of the exit lenses. The shield unit comprises a plurality of shields that obstruct a part of the light travelling toward each of the exit lenses, and an upper end of each of the shields comprises a horizontal part that extends horizontally from the center of the upper end toward a shield adjacent thereto, and a connection part that extends from the horizontal part toward the adjacent shield at an angle different from the horizontal part.

VEHICLE LAMP
20210404621 · 2021-12-30 ·

A vehicle lamp includes a light source unit; an incident lens unit that comprises a plurality of incident lenses on which light is incident from the light source unit; an exit lens unit that comprises a plurality of exit lenses outputting the light incident from the incident lens unit; and a shield unit that obstruct a part of the light travelling toward each of the exit lenses. The shield unit comprises a plurality of shields that obstruct a part of the light travelling toward each of the exit lenses, and an upper end of each of the shields comprises a horizontal part that extends horizontally from the center of the upper end toward a shield adjacent thereto, and a connection part that extends from the horizontal part toward the adjacent shield at an angle different from the horizontal part.

ILLUMINATOR HAVING COMBINATION REFRACTIVE AND TIR LENS
20210404611 · 2021-12-30 ·

In an illumination system, a lens can substantially collimate light that is emitted from a location on a light source. The emitted light can have a central light portion and a peripheral light portion. The lens can have a first surface that faces the light source and a second surface opposite the first surface. The first surface can include a first convex central portion and a first total internal reflection (TIR) portion. The second surface can include a second convex central portion and a second TIR portion. The first and second convex central portions can substantially collimate the central light portion via refraction at the first convex central portion and refraction at the second convex central portion. The first and second TER portions can substantially collimate the peripheral light portion via total internal reflection at the first TIR portion and total internal reflection at the second TIR portion.

Low cost projection system

Described examples include a projection system having a light source. The projection system also has a light integrator having an output face, the light integrator configured to receive an output of the light source, wherein a length of the light integrator is less than at least one diametric measurement of the output face of the light integrator. The projection system also has a spatial light modulator and focusing optics configured to receive a light output of the light integrator and configured to focus the light output of the light integrator onto the spatial light modulator. The projection system also has projection optics configured to project modulated light from the spatial light modulator.

VEHICULAR LAMP
20210396371 · 2021-12-23 · ·

A vehicular lamp includes a light source, a mirror unit that emits a scanning light beam by reflecting a light beam from the light source by reciprocating rotation around two axes, a reflection type phosphor unit that receives the scanning light beam from the mirror unit to produce an image on a phosphor surface, and a projection lens unit that is disposed to face the phosphor surface of the reflection type phosphor unit and through which light emitted from the image incident from the reflection type phosphor unit passes. The projection lens unit has a bottom surface on the inner side and a chamfered surface on the outer side in a radial direction on the incident side.

Large-aperture optical lens with three lens pieces

An optical lens is provided with three lens pieces. The optical lens includes a diaphragm, a first lens piece having positive focal power, a second lens piece having negative focal power and a third lens piece having positive focal power, arranged in sequence. The first lens piece has an S1 surface and an S2 surface. The second lens piece has an S3 surface and an S4 surface. The third lens piece has an S5 surface and an S6 surface. An S7 surface is provided on a side of the S6 surface away from the S5 surface. A lens frame is provided at the S6 surface or between the S6 and S7 surfaces. The calibers of the Si to S7 surfaces sequentially decrease. An equivalent focal length of the first lens piece is larger than that of the third lens piece. A numerical aperture of the lens is larger than 0.6.