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Methods and apparatus for an asymmetric optical lens

An optical lens and asymmetric technology, applied in optics, condenser mirrors, lighting devices, etc., can solve problems such as flexibility limitations, consumption, and large energy

Inactive Publication Date: 2017-02-22
PHILIPS LIGHTING HOLDING BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These configurations are limited in their flexibility: the colors that can be emitted by each expanded optical film are limited by the number of lenses provided with the corresponding light source
In addition, light sources such as fluorescent or halogen lamps that typically use intumescent optical films can consume large amounts of energy

Method used

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  • Methods and apparatus for an asymmetric optical lens
  • Methods and apparatus for an asymmetric optical lens
  • Methods and apparatus for an asymmetric optical lens

Examples

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Embodiment Construction

[0038] Expanded optical films can be configured and / or selectively irradiated to create various patterns, colors, etc. A light source, such as a fluorescent lamp, may be positioned adjacent to each intumescent optical film such that when energized, the light source illuminates the inflatable optical film. In some cases, various optical elements, such as tinted lenses, may be used to impart specific characteristics to the emitted light. This configuration is limited in its flexibility. Additionally, light sources such as fluorescent or halogen lamps typically used with intumescent optical films can consume significant amounts of energy. Therefore, there is a need in the art to provide more lighting flexibility in applications using intumescent optical films and to make these applications more energy efficient. More generally, Applicants recognize and understand that it is advantageous to provide redirection of light from LED-based light sources in two stages, eg, for maintain...

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PUM

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Abstract

In various embodiments, an asymmetric optical lens (100) may include a proximal volume (102). The proximal volume may include a base surface (106) and an LED recess (108) shaped to receive light emitted by one or more LEDs (109) along a first central light output axis (112). The LED recess may guide the received light along a second central light output axis (110) that is at a first angle (Phi) relative to the first central light output axis. The asymmetric optical lens may also include a distal volume (104) that includes, opposite the base surface, a non-planar light emission surface (114). The distal volume may be shaped to guide light from the proximal portion through the light emission surface along a third central light output axis (116) that is at a second angle (Lamda) to the first central light output axis. The second angle may be greater than the first.

Description

technical field [0001] The present invention generally relates to lighting control. More specifically, various inventive methods and devices disclosed herein relate to lenses and methods of using lenses to illuminate inflated optical films. Background technique [0002] Digital lighting technology, ie illumination based on semiconductor light sources such as light emitting diodes (LEDs), offers a viable alternative to traditional fluorescent HIDs and incandescent lamps. The functional advantages and benefits of LEDs include high energy conversion and optical efficiency, long-lasting, low operating costs, and more. Recent advances in LEDs provide efficient and robust full-spectrum lighting sources that enable a variety of lighting effects in many applications. Some luminaires embodying these sources feature a lighting module that includes one or more LEDs capable of producing different colors (e.g., red, green, and blue) and outputs for independently controlling the LEDs to...

Claims

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Application Information

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IPC IPC(8): F21V5/04F21V5/08G02B19/00
CPCF21V5/08G02B19/0014G02B19/0061F21V5/007F21V13/02F21K9/69F21Y2115/10
Inventor L·G·L·拉克罗伊克斯
Owner PHILIPS LIGHTING HOLDING BV
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