Keypad lighting system for a security system communication unit

• US 20030227766A1
• Filed: 06/11/2002
• Published: 12/11/2003
• Est. Priority Date: 06/11/2002
• Status: Abandoned Application

• Current Assignee: The Chamberlain Group, Inc. (The Chamberlain Group LLC)
• Original Assignee: The Chamberlain Group, Inc. (The Chamberlain Group LLC)
• Inventors: Sakadjian, Hagop, Hom, Wayne C.
• Application Number:
  US10/167,721
• Publication Number:
  US 20030227766A1
• Time in Patent Office: Days
• US Class Current: 362/23
• CPC Class Codes: G06F 3/0202 Constructional details or processes of manufacture of the input device

Abstract

An illumination system for a keypad of a security system communication unit is disclosed in which LED'"'"'s are embedded in a light dispersing medium around the peripheral edge of the keypad in a plane offset and adjacent to the plane of the keypad so that the light from the LED'"'"'s is dispersed across the keypad in an even fashion.

Claims

1. A security communication unit keypad illumination system comprising:

a plurality of LED'"'"'s positioned in a peripheral array around a keypad in a plane offset from a plane of the keypad, said peripheral array of LED'"'"'s being coupled with a light dispersing medium that spreads said light from said LED'"'"'s out across said keypad, said security unit being encased in a strong case and said illumination system being shielded by a portion of said case of said security communication unit.

2. The system of claim 1 wherein said LED'"'"'s are superbright LED'"'"'s.

3. The system of claim 1 wherein said LED'"'"'s are electrically connected in series to a common power source.

4. The system of claim 1 wherein said light dispersing medium is a translucent plastic like material.

5. The system of claim 1 wherein said LED'"'"'s being coupled with a light dispersing medium comprises imbedding the LED'"'"'s in the light dispersing medium.

6. The system of claim 1 wherein said case is made of heavy gage stainless steel.

7. The system of claim 1 wherein said illumination system is only exposed on one light transmissive surface that forms a peripheral wall perpendicular to the plane of the keypad and surrounding the keypad to thereby project light across the keypad.

8. A security communication unit keypad illumination system comprising:

a plurality of LED'"'"'s positioned in a peripheral array around a keypad in a plane offset from a plane of the keypad, said peripheral array of LED'"'"'s being embedded in a light dispersing medium that spreads said light from said LED'"'"'s out across said keypad.

9. The system of claim 8 wherein said LED'"'"'s are superbright LED'"'"'s.

10. The system of claim 8 wherein said LED'"'"'s are electrically connected in series to a common power source.

11. The system of claim 8 wherein said light dispersing medium is a translucent plastic light material.