Illuminated dual pressure sensing key
AssigneePrimax Electronics Ltd.
InventorChung-Yuan Chen
Life of this patent
Estimating the term…
Abstract
A key structure includes a movable element, an elastic element, a light-emitting element and a pressure sensing element. The pressure sensing element is arranged between the elastic element and the light-emitting element. The elastic element is disposed on the movable element. The light-emitting element emits a light beam. The light beam is transmitted through the pressure sensing element and projected to the movable element to illuminate the key structure. While the key structure is depressed, the elastic element is pushed by the movable element. The pressure sensing element is pushed by the elastic element according to different magnitudes of the depressing force. Consequently, the key structure generates different pressure sensing signals.
Claims6
A key structure, comprising:
- a pedestal;
- an upper cover having an upper cover opening, wherein the pedestal is covered by the upper cover;
- a movable element disposed on the pedestal and partially penetrated through the upper cover opening, wherein while the movable element is depressed, the movable element is moved relative to the pedestal;
- an elastic element sheathed around the movable element;
- a light-emitting element disposed under the pedestal, and emitting a light beam to the movable element;
- and
- a pressure sensing element disposed on the movable element, and contacted with the elastic element, wherein the pressure sensing element generates a first pressure sensing signal in response to a first force, or the pressure sensing element generates a second pressure sensing signal in response to a second force.
Dependencies are inferred from the claim text.