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GLT flaunts design flexibility with curved light guides

Posted: 28 Apr 2014     Print Version  Bookmark and Share

Keywords:Global Lighting Technologies  light guide  curved light extraction  LED 

Global Lighting Technologies (GLT) has announced its non-linear curved light extraction technologies that the company said allows the design of more complex light guides. According to GLT, the non-linear LED-based light guides can be incorporated into a range of products such as overhead lighting and wall sconces to car interior/exterior lighting such as dome lights, passenger compartment lighting, and daytime running lights, as well as white goods and consumer electronics devices.

non-linear LED-based light guide

The capability was made possible by two developments within the company. The first was the development of a thin film embossing process allowing light guides to be manufactured 0.25mm or less in thickness. The flexible parts can be used in applications requiring flexible or mechanically curved product. The second was a change to the manufacturing process of the optical extraction features embedded in the light guides, allowing GLT to create the extraction features onto curved surfaces. This allows for thicker light guides to be injection molded while having curved emission surfaces.

The curvature of the light guides can be custom designed for various applications. Typical sizes range from 0.25-4mm thick and can be created in sizes greater than 24in in diagonal, depending on the application.

- Paul Buckley
  EE Times Europe

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