Suspension system for use in an optical displacement detection system
AssigneeLogitech Europe S.A.
InventorsMarc A. Bidiville, Antoine Merminod
Life of this patent
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Abstract
A system and method of manufacturing directed to an optical device with optical illumination. The optical device has a case for encasing an optical module. The optical module has one or more contact points in contact with the imaged surface. The suspension system uses a flexible connection to suspend the optical module over an opening in the bottom of the case. The flexible connection and the contact points control the distance between a surface and an optical lens within the optical module and allow the optical module to stay in the correct position.
Claims61
A suspension system for use in an optical input device, the suspension system comprising:
- an optical module for detecting displacement of the optical input device;
- a contact point coupled to the optical module for providing a contact between the optical module and a surface;
- a case for housing the optical module, including an opening in a bottom portion of the case;
- and
- a flexible connection coupled to the optical module and the case for suspending the optical module within the case over the opening in the bottom portion of the case and the optical module protruding from the opening in the bottom portion of the case.
A suspension device for use in an optical input device comprising:
- a housing with an opening in a bottom of the housing;
- an optical module coupled to the housing;
- a contact point coupled to the optical module for providing a contact between the optical module and a surface;
- a flexible membrane for coupling the optical module to the housing by supporting the optical module over the opening in the bottom of the housing;
- and
- a resilient member coupled to the housing and the optical module for providing a force on the optical module.
A suspension system for use in an optical input device comprising:
- an optical means for detecting movement using an optical component;
- a contact means for providing a contact between the optical means and a surface;
- a housing means for housing the optical means with an opening in a bottom of the housing means;
- a connection means for flexibly coupling the optical means to the housing means.
A method of manufacturing a suspension system for use in an optical input device comprising:
- constructing an optical module comprising at least one optical component and at least one contact point;
- enclosing the optical module with a case having a bottom portion and a top portion;
- inserting an opening in the bottom portion of the case;
- suspending the optical module over the opening in the bottom of the case by flexibly coupling the optical module to the case;
- and
- connecting a resilient member to the case and the optical module to apply a force on the optical module.
An electrostatic discharge protection system comprising:
- an optical module;
- a case for housing the optical module, the case including an opening for exposing at least a portion of the optical module;
- and
- a membrane mounted to the case and coupled with the optical module configured to provide a path for electrostatic discharge.
A waterproof-type barrier system for use in an optical input device comprising:
- an optical module configured to provide displacement information;
- a case for housing the optical module, the case including an opening for exposing at least a portion of the optical module;
- and
- a membrane mounted to the case and coupled to a perimeter of the optical module, the membrane configured to provide a waterproof-type barrier for the optical input device.
A suspension device for use in an optical input device comprising:
- a housing with an opening in a bottom of the housing;
- an optical module coupled to the housing;
- a contact point coupled to the optical module for providing a contact between the optical module and a surface;
- a flexible membrane for coupling the optical module to the housing by supporting the optical module over the opening in the bottom of the housing, the flexible membrane comprising a moisture barrier.
A method of manufacturing a suspension system for use in an optical input device comprising:
- constructing an optical module comprising at least one optical component and at least one contact point;
- enclosing the optical module with a case having a bottom portion and a top portion;
- inserting an opening in the bottom portion of the case;
- and
- suspending the optical module over the opening in the bottom of the case by flexibly coupling the optical module to the case with a flexible membrane, the flexible membrane providing a moisture barrier.
Dependencies are inferred from the claim text.