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Remote illumination light duct

A technology of light pipes and lighting components, which is applied in the field of remote lighting light pipes, and can solve problems such as unfavorable physical layout of light sources

Inactive Publication Date: 2015-11-11
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In some applications, such as when the package contains a temperature-sensitive environment or includes flammable or explosive materials that must be isolated from power sources and heat-generating bodies, the physical layout of the light source inside the package becomes unfavorable

Method used

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Examples

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example 1

[0075] Example 1: Beverage Cooler Illuminator .

[0076] A remote ducted lighting system configured to illuminate merchandise on the shelves of a "merchandiser," a beverage cooler with a transparent front door for a retail environment The product name of the device. Currently available beverage vending machines use an array of approximately several hundred LEDs disposed in a cooling chamber. Measurements show that the LED array consumes about 34 watts of electrical power, most of which is dissipated as heat within the cooler. Additional energy consumption is associated with the need to remove the heat generated by the LEDs from the cooling chamber. This "energy load" is usually quantified by a coefficient of performance (or COP), which is typically between 2 and 6 for currently available coolers (i.e., 2 to 6 watts of electrical energy are removed for one watt to run a refrigerator heat generated in the refrigerator). Thus, the desired savings associated with being "remo...

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PUM

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Abstract

The present disclosure describes light delivery and distribution components of a ducted lighting system having a cross-section that includes at least one curved portion and a remote light source. The delivery and distribution system (i.e., light duct and light duct extractor) can function effectively with any light source (480) that is capable of delivering light which is substantially collimated about the longitudinal axis (405) of the light duct (410), and which is also preferably substantially uniform over the inlet of the light duct. A turning film (450) comprising parallel ridged microstructures intercepts and redirects light rays exiting the light output region. The light duct (410) is hollow and comprises a light transmissive region (430) which may vary in size along the longitudinal axis (405).

Description

Background technique [0001] Transmission of visible light can use mirror-lined catheters or smaller solid fibers utilizing total internal reflection. Mirror-lined conduits include advantages of large cross-sectional area and high numerical aperture (allowing greater flux with less accumulation), robust and transparent propagation medium (i.e., air) resulting in lower attenuation and longer lifetime , and the weight per unit luminous flux delivered may be lower. [0002] In some applications, such as when the package contains a temperature-sensitive environment or includes flammable or explosive materials that must be isolated from power sources and heat-generating bodies, the physical placement of the light source inside the package becomes unfavorable. A mirror-lined conduit enables the delivery of remotely generated light to the internal environment. Contents of the invention [0003] The present disclosure describes light delivery and distribution components of a ducted...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V8/00
CPCG02B6/0096F21V2200/40F21W2131/305F21Y2101/02G02B6/001G02B6/0038G02B6/0053G02B6/0058F21S2/00F21Y2115/10F21V33/008F25D27/00
Inventor 瓦迪姆·N·萨瓦蒂夫迈克尔·A·梅斯戴维·G·弗赖尔安东尼·J·皮耶卡尔奇克奥德蕾·A·舍曼
Owner 3M INNOVATIVE PROPERTIES CO