Light pipe connector apparatus

Patent metadata

Field	Value
Publication number	US-9726837-B2
Application number	US-201514919779-A
Country	US
Kind code	B2
Filing date	Oct 22, 2015
Priority date	Sep 24, 2015
Publication date	Aug 8, 2017
Grant date	Aug 8, 2017

Abstract

Light can be transmitted between a light source and a light detector or target by using at least two mating connector sections of a light pipe connector. A protrusion of one of the connector sections is designed to be received within a receptacle of another of the connector sections, which can make the light pipe connector mechanically compliant. The two connector sections are fabricated from an optically transmissive material, and have optically reflective surfaces in orthogonal orientations to optically transmissive surfaces adjacent to the light source and the light detector. When the protrusion of one of the connector sections is engaged within the receptacle of another connector section, light can be transmitted through optically transmissive surfaces adjacent to a light source and a light detector, while the orthogonally oriented optically reflective surfaces direct light towards the light detector.

First claim

What is claimed is:

1. A method of operating a light pipe connector to transmit light between a light source and a light detector, the method comprising:
optically coupling, to the light source, a first optically transmissive connector section the light pipe connector, the first optically transmissive connector section having a first surface and a first optically reflective surface orthogonal to the first surface;
optically coupling, to the light detector, a second optically transmissive connector section of the light pipe connector;
inserting a protrusion of the first optically transmissive connector section into a receptacle of the second optically transmissive connector section, the protrusion having a second surface opposite to and in a planar orientation to the first surface, the protrusion further having a second optically reflective surface orthogonal to the second surface, the receptacle having a third surface that, when the protrusion is inserted into the receptacle, is adjacent to and in a planar orientation to the second surface, the second optically transmissive connector section further having a third optically reflective surface in an orthogonal orientation to the third surface, the second optically transmissive connector section further having a fourth surface in a planar orientation to and opposite to the third surface;
transmitting, using the light source, light through the first surface of the light pipe connector;
guiding, using the first, the second, and the third optically reflective surfaces, the transmitted light from the first surface to the second surface of the light pipe connector; and
receiving, using the light detector, through the second surface of the light pipe connector, the transmitted light.

2. The method of claim 1 , wherein optically coupling the first optically transmissive connector section to a light source includes locating the first optically transmissive connector section adjacent to the light source.

3. The method of claim 1 , wherein optically coupling the second optically transmissive connector section to a light detector includes locating the second optically transmissive connector section adjacent to the light detector.

4. The method of claim 1 , wherein the transmitting further comprises using the light source that is integrated with an electronic module.

5. The method of claim 1 , wherein the receiving further comprises using the light detector that is integrated with an electronic module.

6. The method of claim 1 , wherein the optically coupling further comprises optically coupling the light source to the light detector through an optically transmissive printed circuit board (PCB).

7. The method of claim 1 , wherein the optically coupling further comprises optically coupling the light source to the light detector through an optically transmissive cable.

8. The method of claim 1 , wherein the transmitting further comprises using a plurality of adjacent light sources arranged on a pitch between 250 μm and 1.0 mm.

9. The method of claim 1 , wherein the transmitting further comprises modulating the light source to create a digital signal.

10. The method of claim 1 , wherein the transmitting further comprises using a plurality of light sources that are interspersed with electrical connections on a surface of an electronic module.

11. The method of claim 1 , wherein the transmitting further comprises using a plurality of light sources, on a surface of an electronic module, that are isolated from a group of electrical connections on the surface of the electronic module.

12. The method of claim 1 , wherein the transmitting further comprises transmitting light through a third optically transmissive connector section.

13. The method of claim 1 , wherein the transmitting further comprises transmitting light from the second surface of the light pipe connector to the first surface of the light pipe connector.

14. The method of claim 1 , wherein engaging a protrusion of the first optically transmissive connector section with a receptacle of the second optically transmissive connector section further comprises engaging the protrusion to a first depth within the receptacle at a first time, and engaging the protrusion to a second depth within the receptacle at a second time.

Assignees

• IBM

Inventors

• Mann Phillip V
• O'Connell Kevin M
• Sinha Arvind K
• Stathakis Karl
• Weckman Kory W

Classifications

• H04B10/501

  Structural aspects · CPC title

• G02B6/4214

  the intermediate optical element having redirecting reflective means, e.g. mirrors, prisms for deflecting the radiation from horizontal to down- or upward direction toward a device (G02B6/4246 takes precedence) · CPC title

• G02B6/43

  Arrangements comprising a plurality of opto-electronic elements and associated optical interconnections · CPC title

• G02B6/423 Primary

  using guiding surfaces for the alignment · CPC title

• G02B6/428

  containing printed circuit boards [PCB] · CPC title