Methods and apparatus for providing led-based spotlight illumination in stage lighting applications

A technology of LED light source and LED module, which is applied in the field of lighting and can solve problems such as reduction of degree

Inactive Publication Date: 2010-12-29
PHILIPS SOLID STATE LIGHTING SOLUTIONS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These devices suffer from the same disadvantages a

Method used

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  • Methods and apparatus for providing led-based spotlight illumination in stage lighting applications
  • Methods and apparatus for providing led-based spotlight illumination in stage lighting applications
  • Methods and apparatus for providing led-based spotlight illumination in stage lighting applications

Examples

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Embodiment Construction

[0045] Various implementations of the invention and related inventive concepts are described below, including certain embodiments that relate particularly to LED-based light sources. It should be understood, however, that the invention is not limited to any particular form of implementation, and that the various embodiments explicitly discussed herein are provided primarily for illustrative purposes. For example, the various concepts discussed herein may be used in a variety of environments including LED-based light sources, other types of light sources that do not include LEDs, environments that include LEDs and other types of light sources in combination, alone or in combination with various types of light sources. The manner in which light sources are incorporated includes non-lighting related equipment as appropriate for the environment.

[0046] figure 1 One example of a controllable LED-based lighting unit 100 that provides the conceptual basis for various embodiments o...

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Abstract

Methods and apparatus for providing theatrical illumination. In one example, a modular lighting fixture (300) has an essentially cylindrically-shaped housing (320) including first openings (325) for providing an air path through the lighting fixture. An LED-based lighting assembly (350) is disposed in the housing and comprises an LED module (360) including a plurality of LED light sources (104), a first control circuit (368, 370, 372) for controlling the light sources, and a fan (376) for providing a flow of cooling air along the air path. An end unit (330) is removably coupled to the housing and has second openings (332). A second control circuit (384) is disposed in the end unit, and electrically coupled to and substantially thermally isolated from the first control circuit. The lighting assembly is configured to direct the flow of the cooling air toward the at least one first control circuit so as to effectively remove heat.

Description

technical field [0001] The present invention relates generally to lighting, and in particular to the implementation and control of LED-based lighting devices for stage lighting applications. Background technique [0002] Lighting devices have been used for many years for set and stage lighting in a variety of theatrical, television and architectural lighting applications. Typically, each lighting fixture includes a fluorescent lamp mounted adjacent to a concave reflector that reflects light through a lens assembly to project a beam of light toward a theater stage or the like. Color filters may be mounted at the front of the lighting device to transmit selected wavelengths of light emitted by the lamp while absorbing and / or reflecting other wavelengths. This provides a specific spectral composition for the projected light beam. [0003] The color filters (also commonly referred to as "gels") used in such lighting devices typically comprise glass or plastic films such as pol...

Claims

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Application Information

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IPC IPC(8): F21S8/00F21V29/02H05B33/08F21S10/02F21W131/406F21Y101/02H05B44/00
CPCF21W2131/406H05B33/0863F21V29/02H05B37/0254F21Y2101/02F21S10/02F21V29/2231F21V29/673F21V29/773F21Y2115/10F21V21/30F21V29/67H05B45/20H05B47/18H05B45/28Y10S362/80
Inventor B·彻梅尔M·K·布莱克威尔C·皮普格拉斯J·沃维克
Owner PHILIPS SOLID STATE LIGHTING SOLUTIONS
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