Led-based flashlight

Details Led-based flashlight Led-based flashlight

2006-07-18

2006-07-18

Koval, Melissa Jan (Department: 2851)

Optics: image projectors

Gun, flashlight or battery operated type

C353S020000, C353S031000, C353S085000, C353S094000, C353S101000, C353S102000, C353S119000, C353S121000, C362S187000, C362S188000, C362S347000

Reexamination Certificate

active

07077525

ABSTRACT:
A flashlight that utilizes an array of one or more light-emitting diodes (LEDs) as a light source, and a light pipe as a light homogenizer to generate a light beam capable of forming a uniformized light distribution at a given distance from the flashlight is disclosed. The LEDs may be all the same color, or some or all may be different colors. A switch, coupled to switching electronics coupled to the LED array, is used to change the state of the LED array to create a variety of different types of light beams, each of which provides relatively uniform and bright illumination at a given distance from the flashlight, wherein the given distance is selectable by adjusting an adjustable imaging lens.

REFERENCES:
patent: 3656845 (1972-04-01), Koch-Bossard et al.
patent: 5871272 (1999-02-01), Sharrah et al.
patent: 6227669 (2001-05-01), Tiao et al.
patent: 6260974 (2001-07-01), Koyama
patent: 6305818 (2001-10-01), Lebens et al.
patent: 6318863 (2001-11-01), Tiao et al.
patent: 6517210 (2003-02-01), Peterson et al.
patent: 2004/0170014 (2004-09-01), Pritchard et al.

Affiliated with

Also associated with

Rating

Led-based flashlight does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Led-based flashlight, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Led-based flashlight will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3584998