Compact and adjustable LED lighting apparatus, and method and system for operating such long-term

摘要

A lighting system is provided whereby long operating life can be reasonably ensured by taking into account requirements of the application, characteristics of the LEDs, characteristics of the fixture containing said LEDs, the desired number of operating hours, and—via developed relationships—taking an iterative approach to supplying power to the LEDs. Through the envisioned compensation methodology and effective luminaire design, a relatively constant light level can be assured for a predetermined number of operating hours (possibly longer); this is true even if operating conditions change, known behavior of LEDs proves untrue over untested period of time, or some other condition occurs which would otherwise cause end-of-life prematurely and prevent the system from meeting the desired number of operating hours.

主权项

1. A lighting system for projecting light so to produce a customized beam output pattern at, near, or on a target area, the customized beam output pattern comprising one or more individual beam patterns, and comprising:
a. a pole or other elevating structure; b. a lighting fixture having an internal space and structure in said internal space for receiving one or more lighting modules, each lighting module comprising:
i. one or more LED light sources;ii. a lens having a light emitting surface and a source adjacent surface;iii. a housing having an aperture for receiving the lens such that the source adjacent surface of the lens encapsulates the one or more light sources, said housing having structure to permit pivoting of the lens once received in the aperture;iv. a visor mountable to the housing and having;v. an aperture for transmitting a portion of the light from the light emitting surface of the lens;vi. a reflective surface for redirecting a portion of the light from the light emitting surface of the lens; andvii. a shape designed to block a portion of the light from the light emitting surface of the lens at predefined angles; c. an adjustable armature having a first end affixed to the pole or other elevating structure, a second end affixed to the lighting fixture, and an adjustable portion connecting the first and second ends adapted to provide pivoting of the lighting fixture in two axes relative the pole or other elevating structure; d. one or more power regulating components adapted to provide plural power levels to the one or more lighting modules; e. the one or more lighting modules adapted to produce the one or more individual beam patterns via selection of one or more of:
i. quantity of or model of LED light source;ii. design of visor;iii. design of lens;iv. shape, size, or nature of reflective surface; andv. diffuser; f. a pivot joint having a first end affixed to the structure in the internal space of the lighting fixture, a second end affixed to the one or more lighting modules, an adjustable portion connecting the first and second ends adapted to provide pivoting of the one or more lighting modules affixed to the second end about a first pivot axis relative the lighting fixture; and a fastening device adapted to both positionally affix the adjustable portion at an adjusted position and provide pivoting of the one or more lighting modules affixed to the second end about a second pivot axis relative the lighting fixture; g. wherein said structure in the internal space of the lighting fixture comprises one or more spaced apart bars adapted to create rows of lighting modules when they are received in the lighting fixture wherein said rows are stacked so to produce at least one row of lighting modules in a higher position than another row of lighting modules.