Optical connector with total internal reflection abutting surface

1. A first optical connector comprising:

at least one optical guide for carrying optical radiations;

a total internal reflection surface upon at least a portion of which, in use, said radiations impinge, so that the radiation in the optical guide is reflected by said surface towards an optical element of the first connector; and

a push-fit portion for attaching and aligning said first optical connector to a second optical connector which is appropriately matingly configured, said portion of said total internal reflection surface being disposed independent of said push-fit portion.

2. A first optical connector according to claim 1 , wherein the surface is such that, in use, the radiation in the optical guide may be reflected by said surface towards an optical element of the connector and may alternatively, in use, be such that its internal reflection properties may be frustrated to allow the radiation to pass across the surface.

3. A first optical connector according to claim 1 further comprising wherein the second connector incorporates means which will frustrate the total internal reflection of the first connector if and when the first connector were to be interlocked with the second connector; and with the push-fit portion being so operatively positioned that, with the first connector interlocked to the second connector as aforesaid, the total internal reflection surface of the first connector will be in sufficient proximity to the total internal reflection frustrating means of the second connector as to allow the optical radiations to pass across the connection then formed by the two interlocking connectors.

4. A first optical connector according to claim 1 , wherein said optical element towards which radiation is reflected treats the radiation so that eye-damaging radiation remains within the first connector.

5. A first optical connector according to claim 1 , wherein said first connector comprises a plurality of optical guides.

6. A first optical connector according to claim 1 , wherein said push-fit portion incorporates interlocking means allowing a connector to be first attached in a non-surface frustrating manner and then incorporates a mechanism which provides a snap-action final closure for the frustration of the surface.

7. A first optical connector according to claim 5 further comprising additional reflection means between the optical guides and the surface.

8. A first optical connector according to claim 5 further comprising refractive means between the optical guides and the surface which change the radiation's direction as emitted from the optical guides to the direction of the radiation incident on the total internal reflection surface.

9. A first optical connector according to claim 5 , wherein the total internal reflection surface is located on at least two sides of a prism.

10. A first optical connector according to claim 1 , wherein the push-fit portion comprises at least one alignment pin.

11. A multiple-connector system comprising:

a first optical connector including,

at least one optical guide for carrying optical radiations,

a total internal reflection surface upon at least a portion of which, in use, said radiations impinge, so that the radiation in the optical guide is reflected by said surface towards an optical element of the first connector,

a push-fit portion for attaching and aligning said first optical connector to another optical connector which is appropriately matingly configured, said portion of said total internal reflection surface being disposed independent of said push-fit portion; and

one or more other optical connectors, each of which other connectors is appropriately matingly configured to attach to and align with said first optical connector and which incorporates means which will frustrate the total internal reflection of said first connector if and when the other connector were to be fully pushed against said first connector,

wherein the push-fit portion of said first connector is operatively positioned so that with said first connector fully pushed against said other connector as aforesaid, the total internal reflection surface of said first connector will be in sufficient proximity to the total internal reflection frustrating means of said other connector as to allow the optical radiations to pass across the connection then formed by the two attached connectors.