Hubbell Limited

Jamey L Butteris

Ezekial Thomas Hill, Iii

Michael Scott Neuer

Thomas Carl Lueken

Zhijie Chen

Thomas K Heaton

Michael A Starinki

Jason Edward Duckworth

Joseph Daniel Engle

Anthony L Brunelli

Steven G Holscher

David J Hatcher

An LED module for a luminaire has a downwardly directed heat sink comprising cooling fins that extend rearward from the module's front end and downward from its top wall, which has a top face that abuts the underside of a luminaire carrier plate. A circuit board carrying at least one LED is mounted on the front face, and a prism is mounted to the heat sink over the LED(s). The front (light-emitting) face of the catadioptric prism has several prominent side-by-side sections which emit beam patterns that diverge laterally and overlap in a central region. A prominent full-width upper section on the front face emits a primarily downwardly directed beam pattern to help fill in dark spots.

Prismatic LED module for luminaire

LED optical component

System and method are provided for controlling emergency lighting where emergency lights turn on when main source of power goes out for controlling emergency lighting to conserve energy utilized by the emergency light, while maintaining good visibility of the emergency lighting. Solid state lighting, such as LED, is used within an emergency light to add light in blue wavelength region matching the light output to the most sensitive of wavelength response of the human eve to increase color perception and allows faster response time. Electrical current to the device and light output are reduced while LED light tends to increase its blue wavelength component as it is dimmed thus increasing effective light output. After a predetermined time, the light is purposefully dimmed to conserve energy and to allow the eye to slowly and safely adjust to the new lighting conditions. By reducing electrical current, energy storage batteries may be smaller than for similar unit that maintains constant light output.

Scotopically enhanced emergency light and control thereof

Outdoor emergency lighting fixture

Flow-through LED carrier for luminaire

Growing community of inventors

Simpsonville, SC, United States of America

Jamey L Butteris