Dematable expanded beam fiber optic connector

• US 10,139,567 B1
• Filed: 10/10/2017
• Issued: 11/27/2018
• Est. Priority Date: 10/10/2017
• Status: Active Grant

• Current Assignee: US Department of The Navy (U.S. Department Of Defense)
• Original Assignee: the united states of america as represented by the secretary of the navy
• Inventors: Beranek, Mark
• Primary Examiner(s): Radkowski, Peter
• Application Number:
  US15/728,666
• Time in Patent Office: 413 Days
• CPC Class Codes: G02B 6/32 having lens focusing means positioned between opposed fibre ends with lens being an integral part of the single fibre end G02B6/262
• CPC Class Codes: G02B 6/3821 with axial spring biasing or loading means G02B6/3847 takes precedence
• CPC Class Codes: G02B 6/3846 with fibre stubs
• CPC Class Codes: G02B 6/3853 Lens inside the ferrule lensed connectors G02B6/32
• CPC Class Codes: G02B 6/3882 using rods, pins or balls to align a pair of ferrule ends

Abstract

The present invention is directed to a dematable expanded beam fiber optic connector that is a fiber optic connector, that includes a pin housing, a receptacle housing, and a slidable spring loaded receptacle lens assembly.

Claims

1. A dematable expanded beam fiber optic connector comprising:

a pin housing including a pin plane;

a receptacle housing including a receptacle plane;

a non-spring loaded pin lens sleeve assembly extending from the pin housing and partially disposed within the pin housing and communicating with a board connector, the non-spring loaded pin lens sleeve assembly comprising a pin sleeve expanded beam lens terminus for optical communication;

a slidable spring loaded receptacle lens assembly disposed within the receptacle housing, and comprising a receptacle expanded beam lens terminus containing a lens for relaying a collimated beam of light between the pin sleeve expanded beam lens terminus and the receptacle expanded beam lens terminus, the slidable spring loaded receptacle lens assembly includes a receptacle spring for applying force such that the slidable spring loaded receptacle lens assembly is flush with the receptacle plane when not in use, the slidable spring loaded receptacle lens assembly can optically communicate with the non-spring loaded pin lens sleeve assembly such that when the non-spring loaded pin lens sleeve assembly is mated to the slidable spring loaded receptacle lens assembly, the receptacle spring compresses and allows protected optical communication between the receptacle expanded beam lens terminus and the pin sleeve expanded beam lens terminus, causing the slidable spring loaded receptacle lens assembly to communicate with a fiber optic ferrule assembly that communicates with end nodes of an optical back plane, the fiber optic ferrule assembly which includes a fiber optic ferrule assembly spring to provide physical contact force between the fiber optic ferrule assembly and the slidable spring loaded receptacle lens assembly;

a receptacle lens assembly holder, wherein the slidable spring loaded receptacle lens assembly is disposed within the receptacle lens assembly holder; and

,

a holder spring far applying force such that the receptacle lens assembly holder is flush with the receptacle plane and the slidable spring loaded receptacle lens assembly when the dematable expanded beam fiber optic connector is not in use.

2. The dematable expanded beam fiber optic connector of claim 1, wherein the fiber optic ferrule assembly includes a fiber optic ferrule assembly spring to provide physical contact force between the fiber optic ferrule assembly and the slidable spring loaded receptacle lens assembly.

3. The dematable expanded beam fiber optic connector of claim 2, wherein the non-spring loaded pin lens sleeve assembly and the slidable spring loaded receptacle lens assembly form an optical interface, and the dematable expanded beam fiber optic connector further includes a gasket wherein the gasket protects the optical interface from external contaminants.

4. The dematable expanded beam fiber optic connector of claim 3, wherein the dematable expanded beam fiber optic connector further includes a ball bearing-dimple apparatus such that the pin sleeve expanded beam lens terminus and the slidable spring loaded receptacle lens assembly can be easily mated and cleaned.