An optical fiber apparatus corresponding to an environmental condition and a lamp module with the optical fiber apparatus corresponding to the environmental condition may include an optical fiber, in which the movement of the optical fiber is guided upon a change in the length of the optical fiber by a high temperature or low temperature environmental condition such that the change in the length thereof is absorbed, preventing damage due to the change in the length of the optical fiber to improve durability.

A light source unit of a vehicle lighting system includes: a light source to emit excitation light; a light generating unit including a luminescent layer to emit generation light by being irradiated with the excitation light and a holding member holding the luminescent layer; and a lens member to output generation light from the luminescent layer toward the front, with the light source unit mounted on the vehicle.

A light guide extending in a main direction and including an inlet face for the light emitted by a light source, the inlet face being contoured to form a collimator. The light guide includes a face for guiding the light, a light outlet face, and a face for decoupling the light towards the outlet face, the decoupling face being transversely opposite to the outlet face. At least one portion of the profile of the inlet face is constant in a transverse direction so as not to collimate the light in a longitudinal plane including the transverse direction but in a longitudinal plane perpendicular to the transverse direction.

A light guide extending in a main direction and including an inlet face for the light emitted by a light source, the inlet face being contoured to form a collimator. The light guide includes a face for guiding the light, a light outlet face, and a face for decoupling the light towards the outlet face, the decoupling face being transversely opposite to the outlet face. At least one portion of the profile of the inlet face is constant in a transverse direction so as not to collimate the light in a longitudinal plane including the transverse direction but in a longitudinal plane perpendicular to the transverse direction.

An image for communication with outside pedestrians is implemented by an afterimage effect by means of a cylindrical display installed at an upper end of a mobility vehicle, and visibility is ensured. In addition, the number of light sources for implementing the image is reduced, an overall size of a lighting device is reduced, and durability and reliability are improved because there is no direct mechanical contact.

The present application discloses a light pipe assembly having a light pipe with a proximal end, an opposing distal end, a length between the proximal end and the distal end, and a surface, the surface having an emitting portion and an overlay portion, where the light pipe is a material capable of transmitting light with a first refractive index; and a reflective secondary surface having a second refractive index and a width, the reflective secondary surface positioned adjacent the overlay portion of the light pipe, where the first refractive index is greater than the refractive index of air, and the second refractive index is greater than the first refractive index. In at least one embodiment, the reflective secondary surface is a non-metallic material capable of reflecting light. In at least one embodiment, the width of the reflective secondary surface varies along the length of the light pipe.

The present application discloses a light pipe assembly having a light pipe with a proximal end, an opposing distal end, a length between the proximal end and the distal end, and a surface, the surface having an emitting portion and an overlay portion, where the light pipe is a material capable of transmitting light with a first refractive index; and a reflective secondary surface having a second refractive index and a width, the reflective secondary surface positioned adjacent the overlay portion of the light pipe, where the first refractive index is greater than the refractive index of air, and the second refractive index is greater than the first refractive index. In at least one embodiment, the reflective secondary surface is a non-metallic material capable of reflecting light. In at least one embodiment, the width of the reflective secondary surface varies along the length of the light pipe.

The invention relates to a luminous motor-vehicle module including at least one light source, an open casing, and a closing element for closing said open casing. The open casing includes a housing for positioning on an optical element, the positioning housing includes a plurality of grooves, and a tab for hooking on a casing of said motor vehicle comprising the optical element and an outer lens for closing the casing, the luminous module being configured to make a rotation and hook, at the end of the rotation, onto the casing via said hooking tab of the open casing.

A composite vehicle lamp includes: a lamp unit; and a lamp housing configured to house a plurality of the lamp units. Each of the plurality of the lamp units has: a light source; and an optical system configured to emit light from the light source in a desired light distribution. The plurality of the lamp units includes: one light-guide-type lamp unit having a light guide; and another light-guide-type lamp unit having another light guide whose form is different from that of the one light-guide-type lamp unit. The one light-guide-type lamp unit and the another light-guide-type lamp unit are turned on as lamps having the same function.

The present invention relates to a light guiding assembly, a vehicle lamp and a vehicle. Specifically, the light guide assembly includes at least a first light guide element and a second light guide element, which can be joined to form a predetermined shape, in the region where the first light guide element and the second light guide element are joined, the parts of the first light guide element and the second light guide element that face each other at least partially overlap, so that light leaving one of the first light guide element and the second light guide element can at least partially enter the other. The vehicle lamp and the vehicle have the abovementioned light guide assembly.