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Visible Light Emitting Diode

IP.com Disclosure Number: IPCOM000091320D
Original Publication Date: 1968-Jan-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 47K

Publishing Venue

IBM

Related People

Jacobus, WN: AUTHOR [+2]

Abstract

This light indicator is useful in computer panels. Light-emitting diode semiconductor device 1 is mounted in cylindrical body 3 made from a suitable metal by a stamping operation. A central opening in body 3 provides entrance for electrical contact 7. The latter is electrically insulated from the remaining portion of body 3. Diode 1 is mounted in body 3 over the opening and is electrically connected to contact 7. Transparent plastic matrix 2, such as an epoxy or silicone plastic, filled with small glass or alumina particles is formed over diode 1. The indicator package is inserted in tapered opening 4 in circuit board 5. Contact 7 is held in place by spring contact 6 which allows easy removal and direct interconnection of the light indicator to board 5.

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Visible Light Emitting Diode

This light indicator is useful in computer panels. Light-emitting diode semiconductor device 1 is mounted in cylindrical body 3 made from a suitable metal by a stamping operation. A central opening in body 3 provides entrance for electrical contact 7. The latter is electrically insulated from the remaining portion of body 3. Diode 1 is mounted in body 3 over the opening and is electrically connected to contact 7. Transparent plastic matrix 2, such as an epoxy or silicone plastic, filled with small glass or alumina particles is formed over diode 1. The indicator package is inserted in tapered opening 4 in circuit board 5. Contact 7 is held in place by spring contact 6 which allows easy removal and direct interconnection of the light indicator to board 5. The light emitted from diode 1 is diffused in all directions by the small particles in matrix 2 thus providing a wide, uniform light source.

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