Illuminated keyboard

• US 7,283,066 B2
• Filed: 01/18/2005
• Issued: 10/16/2007
• Est. Priority Date: 09/15/1999
• Status: Expired due to Term

• Current Assignee: Michael Shipman
• Original Assignee: Michael Shipman
• Inventors: Shipman, Michael
• Primary Examiner(s): WONG, ALBERT KANG
• Application Number:
  US11/038,308
• Publication Number:
  US 20050231395A1
• Time in Patent Office: 1,001 Days
• Field of Search: 341/20, 341/22, 345/168, 345/170, 200/314, 200/341, 362/30, 362/85, 362/26, 362/600
• US Class Current: 341/22
• CPC Class Codes: G06F 3/0202 Constructional details or processes of manufacture of the input device
• CPC Class Codes: H01H 13/70 having a plurality of operating members associated with different sets of contacts, e.g. keyboard mounting together a plurality of independent switches H02B
• CPC Class Codes: H01H 2219/018 Electroluminescent panel
• CPC Class Codes: H01H 2219/037 using organic materials, e.g. organic LED
• CPC Class Codes: H01H 2219/062 Light conductor

Abstract

A keyboard is provided having illuminating keys. The keyboard includes a light channeling upper clamshell and preferably key members constructed at least partially of translucent material so that light produced from a light source is channeled upwardly to the upper surfaces of the key members. The light source may include LED or LEC systems in adjoining relationship to the light channeling membrane or light pipe. In a preferred embodiment, the light source is constructed of a substantially planar illuminescent sheet which underlies the light channeling membrane. In an alternative preferred embodiment, a light pipe is constructed to illuminate light laterally along a portion of its length to illuminate a plurality of key members. In still additional preferred embodiments, the keyboard space bar includes a luminescent line or decorative design for indicating the space bar'"'"'s function and position.

Claims

1. A lighted computer keyboard comprising:

a keyboard housing including an upper clamshell member, said upper clamshell member being at least partially translucent to channel light;

a plurality of key members constructed of a substantially hard non-deformable material positioned within said keyboard housing;

a biasing means for biasing said key members in an upward direction;

a circuit board underlying said plurality of key members, said circuit board being operational to produce signals in response to depression of said key members; and

a light source optically connected to said clamshell member for communicating light to said clamshell member, said clamshell member channeling light into at least some of said plurality of key members.

2. The lighted computer keyboard of claim 1 wherein said light source include LEDs or LECs.

3. The lighted computer keyboard of claim 2 wherein said LEDs or LECs are embedded in said clamshell member.

4. The lighted computer keyboard of claim 1 wherein said light source include fiberoptic cables.

5. The lighted computer keyboard of claim 4 wherein said fiberoptic cables are embedded in said clamshell member.

6. The lighted computer keyboard of claim 1 wherein said light source includes an electroluminescent panel lamp.

7. The lighted computer keyboard of claim 1 further comprising indica formed on the top of said upper clamshell, said light source providing light for communication to said clamshell member to illuminate said indica.

8. The lighted computer keyboard of claim 7 wherein said indica is a company logo or trademark.

9. The lighted keyboard of claim 1 wherein said upper clamshell member includes a coating in the intrasticial regions between the key members to inhibit light from projecting upwardly between key members.

10. The lighted keyboard of claim 9 wherein said coating is a reflective coating of light grey, white, silver, or metallic gold.