Browse Prior Art Database

Combined Optical and Electrical D Connector

IP.com Disclosure Number: IPCOM000118495D
Original Publication Date: 1997-Feb-01
Included in the Prior Art Database: 2005-Apr-01
Document File: 2 page(s) / 61K

Publishing Venue

IBM

Related People

Beeteson, J: AUTHOR [+2]

Abstract

Disclosed is a combined optical and electrical D connector which provides optical connectability through a conventional D type connector.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 55% of the total text.

Combined Optical and Electrical D Connector

      Disclosed is a combined optical and electrical D connector
which provides optical connectability through a conventional D type
connector.

      With the trend towards the use of optical fiber connections
between displays and system units, there inevitably arises the
problem of connector compatibility and physical space for the new
optical connections.  Changing connectors, or adding new ones, is and
has always been a major problem in the field of Personal Computers
because of the sheer number of old system units in the field and
because of the shortage of space on some system units (e.g.,
portables).

      A simple solution to this problem is proposed herein which
involves designing the light guide into the physical space of the
existing D type connector such that physically the old and new
connectors are compatible.  Thus an old plug will screw into a new
socket and a new plug will screw into an old socket, maintaining all
existing electrical connections.  It will be appreciated that in
contrast to communication link optical connectors where the two light
guides are made to mechanically mate with high precision to reduce
losses, in a display application this is not critical, as losses are
less important since the connection length is only meters (or tens of
meters) rather than kilometers.

      In a conventional D type connector 10, as shown in Fig. 1, a
pair of screws 11, 12 are located either side of...