Abstract: A light guide is provided that includes a light chamber defined by isotropically luminant top, bottom, and back surfaces, and a front surface having a translucent lens. The light guide also includes a reflective diaphragm within the chamber that defines a top gap between the diaphragm and the top surface, and a bottom gap between the diaphragm and the bottom surface. The light guide further includes an LED light source located between the diaphragm and the back surface of the chamber. The light guide may also be configured with a front surface having a partially transmissive lens and no reflective diaphragm. A vehicle lighting assembly is also provided that includes a plurality of interconnected light chamber sections comprising light guides.

Abstract: A Parabolic-Type reflector has a uniform Apparent Brightness over the reflector surface. A model of the reflector is divided into a plurality of elements arrayed radially around the reflector focus. Each element has a length li measured radially from the focus and perpendicular to an optical axis of the reflector, and an initial depth d-initi measured parallel to the optical axis. For each element, a light-angle ?i is calculated, the angle of light from the light source subtended by the element. An Apparent Brightness is found for each element, ABi??i/li. The element emin with the lowest Apparent Brightness ABmin is identified. For each element other than emin a required light-angle is found, the required light-angle ?-corri=ABmin×li. While maintaining li, the initial depth d-initi of the element is reduced to a corrected depth d-corri necessary to achieve ?-corri.

Abstract: A Parabolic-Type reflector has a uniform Apparent Brightness over the reflector surface. A model of the reflector is divided into a plurality of elements arrayed radially around the reflector focus. Each element has a length li measured radially from the focus and perpendicular to an optical axis of the reflector, and an initial depth d-initi measured parallel to the optical axis. For each element, a light-angle ?i is calculated, the angle of light from the light source subtended by the element. An Apparent Brightness is found for each element, ABi??i/li. The element emin with the lowest Apparent Brightness ABmin is identified. For each element other than emin a required light-angle is found, the required light-angle ?-corri=ABmin×li. While maintaining li, the initial depth d-initi of the element is reduced to a corrected depth d-corri necessary to achieve ?-corri.

Abstract: A light guide is provided that includes a light chamber defined by isotropically luminant top, bottom, and back surfaces, and a front surface having a translucent lens. The light guide also includes a reflective diaphragm within the chamber that defines a top gap between the diaphragm and the top surface, and a bottom gap between the diaphragm and the bottom surface. The light guide further includes an LED light source located between the diaphragm and the back surface of the chamber. The light guide may also be configured with a front surface having a partially transmissive lens and no reflective diaphragm. A vehicle lighting assembly is also provided that includes a plurality of interconnected light chamber sections comprising light guides.