Vehicular lamp with LED light source having uniform brightness

A vehicular lamp comprising:

• an LED light source;
• a Fresnel lens for forming light from said LED light source into a parallel light flux;
• a reflector for reflecting the parallel light flux toward a front of said lamp;
• and a plain translucent cover provided on a front of said reflector, a reflecting surface of said reflector being sectioned into a plurality of segments at a substantially uniform interval with respect to a radiating direction of said parallel light flux, and a reflective element and a step portion being formed in each of said segments whereby said reflecting surface is formed in a stepped shape, each of said reflective elements comprising a curved surface which reflects said parallel light flux in a diffused manner in a vertical direction and a lateral direction, and a width in a longitudinal direction of said lamp of said reflective elements in peripheral areas on both sides in said radiating direction of said parallel light flux of a central area near an intersection point with respect to a central axis of said parallel light flux on said reflecting surface increases in accordance with distance from said intersection point between said parallel light flux and said central axis than said reflective elements in said central area.

A vehicular lamp comprising:

• an LED light source;
• a Fresnel lens for forming light from said LED light source into a parallel light flux;
• a reflector for reflecting the parallel light flux toward a front of said lamp;
• and a translucent cover provided on a front of said reflector, a reflecting surface of said reflector being sectioned into a plurality of segments at a substantially uniform interval with respect to a radiating direction of said parallel light flux, and a reflective element and a step portion being formed in each of said segments whereby said reflecting surface is formed in a stepped shape, each of said reflective elements comprising a flat plane which reflects said parallel light flux toward said translucent cover, said cover comprising a plurality of diffusion lens elements, and a width in a longitudinal direction of said lamp of said reflective elements in peripheral areas on both sides in said radiating direction of said parallel light flux of a central area near an intersection point with respect to a central axis of said parallel light flux on said reflecting surface increases in accordance with distance from said intersection point between said parallel light flux and said central axis than said reflective elements in said central area.

A vehicular lamp comprising:

• an LED light source;
• a Fresnel lens for forming light from said LED light source into a parallel light flux;
• a reflector for reflecting the parallel light flux toward a front of said lamp;
• and a translucent cover provided on a front of said reflector, a reflecting surface of said reflector being sectioned into a plurality of segments at a substantially uniform interval with respect to a radiating direction of said parallel light flux, and a reflective element and a step portion being formed in each of said segments whereby said reflecting surface is formed in a stepped shape, each of said reflective elements comprising a curved surface which reflects said parallel light flux in a diffused manner in one of a vertical direction and a lateral direction, said cover comprising a plurality of diffusion lens elements, and a width in a longitudinal direction of said lamp of said reflective elements in peripheral areas on both sides in said radiating direction of said parallel light flux of a central area near an intersection point with respect to a central axis of said parallel light flux on said reflecting surface increases in accordance with distance from said intersection point between said parallel light flux and said central axis than said reflective elements in said central area.