Back to results
US 10,208,901 B2Granted
Portable lighting device
AssigneeKoehler-Bright Star, Inc.
InventorsJeff Keisling, Mark Dirsa
Life of this patent
Estimating the term…
Abstract
A portable lighting device includes a main front lamp directed in a first direction, an auxiliary lamp directed in a second direction different from the first direction and a controller connected to the auxiliary lamp so as to selectively illuminate the auxiliary lamp.
Claims9
A portable lighting device comprising:
- a housing;
- a main front lamp mounted to the housing and directed in a first direction;
- an auxiliary lamp directed in a second direction different from the first direction;
- a controller connected to the auxiliary lamp so as to selectively illuminate the auxiliary lamp;
- an orientation sensor, connected to the controller, wherein the main front lamp and the auxiliary lamp are operable in a manual mode in which the main front lamp and the auxiliary lamp are selectively activated and deactivated, and wherein in an automatic mode, the controller activates the auxiliary lamp when the orientation sensor detects tilting or downward movement and deactivates the auxiliary lamp when the sensor detects that it is in an upright position;
- and
- an external motion detector connected to the controller, the external motion detector detecting motion on a side of the housing, wherein the controller illuminates the auxiliary lamp when movement is detected by the external motion detector, and wherein the controller varies an intensity of illumination of the auxiliary lamp based on the detected movement.
4 more elements
A portable lighting device for retrofitting a cap lamp system that includes a cap lamp adapted to attach to a helmet, a battery pack and a power cord supplying power from the battery pack to the cap lamp, the portable lighting device comprising:
- a housing adapted to be attached to the helmet;
- an auxiliary lamp positioned in the housing;
- a controller connected to the auxiliary lamp so as to selectively illuminate the auxiliary lamp;
- an orientation sensor connected to the controller, wherein the controller activates the auxiliary lamp when the orientation sensor detects tilting or downward movement, and deactivates the auxiliary lamp when the sensor detects that it is in an upright position;
- and
- an external motion detector connected to the controller, the external motion detector detecting motion on a side of the housing, wherein the controller illuminates the auxiliary lamp when movement is detected by the external motion detector, and wherein the controller varies an intensity of illumination of the auxiliary lamp based on the detected movement,
- wherein the auxiliary lamp is adapted to be selectively illuminated by the battery pack.
4 more elements
Dependencies are inferred from the claim text.