Unlock instant, AI-driven research and patent intelligence for your innovation.

Light unit with light output pattern synthesized from multiple light sources and modular refractors

A modular, refractor technology, applied in refractors, light sources, outdoor lighting, etc., can solve problems such as degradation, achieve high efficacy and minimize the total number of LEDs

Inactive Publication Date: 2015-11-11
EVOLUCIA LIGHTING
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Phosphor-based LEDs also have phosphor-related degradation issues where the output of the LED will degrade over time

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Light unit with light output pattern synthesized from multiple light sources and modular refractors
  • Light unit with light output pattern synthesized from multiple light sources and modular refractors
  • Light unit with light output pattern synthesized from multiple light sources and modular refractors

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0049] The present invention recognizes that LED based lighting designs are desirable to create low cost LED lamps comprising LED arrays. The present invention also recognizes the need to produce a uniform illumination pattern, or, where a particular non-uniform illumination pattern is desired, to provide a desired illumination pattern. Furthermore, the present invention recognizes that, to further reduce cost, the number of LEDs requiring collimation should also be minimized. The present invention provides lighting units that meet these criteria, as well as methods of producing such enhanced designs. In applications where the lamp is used, such as road lighting, office or other lighting, or residential lighting, there is a requirement for a basic output pattern. Requirements for such an output pattern may include a minimum illuminance of foot-candles, and the extent of the illuminated area depending on the height of the lamps and the spacing between the lamps. First, when t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present disclosure provides an LED based light unit that produces an output lighting pattern that meets desired lighting characteristics using a reduced number of LED elements. The present disclosure provides a number of point sources that are directed into a desired direction such that, when combined with other point sources, a synthesized light output is provided that minimizes the LED headcount.. Modular refractors are provided having optic components that may be coupled with lighting modules. The modular refractors may provide environmental protection to lighting components housed within the refractor, and a separate external protective lens may not be required. One or more lenses of one or more of the modular refractors may include materials of at least two different refractive indices that are co-molded together.

Description

technical field [0001] The present invention relates to an LED-based lighting unit, and more particularly, to an LED-based lighting unit with a composite output pattern using a smaller number of LED elements and fewer optics. Background technique [0002] Lighting systems typically use a variety of different types of lighting fixtures, generally including incandescent, fluorescent, and light emitting diode (LED) based lights. LED-based lamps typically rely on multiple diode elements to generate sufficient light for the needs of a particular lamp or lighting system. LED lighting offers great potential in this regard as a way to offset rising energy prices and meaningfully reduce greenhouse gas production. With an efficacy approaching 150 lumens per watt and a lifetime of over 50,000 hours, LED and lighting products based on LED technology could potentially enter the lighting market for residential and commercial, indoor and outdoor applications. [0003] LED-based lamps hav...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F21V5/04F21V17/00
CPCF21K9/00F21W2131/103F21Y2101/02F21Y2111/001F21Y2107/00F21Y2115/10
Inventor R·考夫曼D·范德斯路易斯R·富杰尔D·赛普斯
Owner EVOLUCIA LIGHTING