30 May 2014

Innovations in Optics introduces UV-LED illuminators for DLP applications emitting over 15W

Innovations in Optics Inc of Woburn, MA, USA has introduced LumiBright 3300B UV-LED Illuminators for Digital Light Processing (DLP) applications such as 3D printing, maskless lithography, pre-press digital imaging, phototherapy, and refractive surgery. UV-LED technology offers more reliable and economical advantages over lasers and arc lamps in UV DLP systems, says the firm.

The technology uses millions of tiny mirrors to digitally produce an image with a light source. When used with ultraviolet (UV) light and photosensitive materials, DLP (a trademark of Texas Instruments) offers continuous scanning, as well as selective and overlapping exposures with greater throughput and efficiency than flying-spot laser systems.

The Model 3300B UV-LED Illuminators for DLP consist of a densely packed UV-LED array coupled to a high-efficiency, non-imaging collection optic with an aspect ratio matched to DLP chips. Its integral imaging optic is telecentric over the entire DLP and is constrained in angle to match the micro-mirror tilt angle. Water-cooling allows the UV-LED array to be operated at a very high current density. The result is an extremely high-power, highly uniform UV-LED illuminator to provide what is claimed to be unprecedented speed and resolution for UV DLP applications.

The illuminators support 3D printers for rapid prototyping, additive manufacturing, and tissue engineering. Printed circuit board (PCB) makers employ maskless lithography to quickly revise circuit-board layouts. Traditional screen and offset plate printers utilize UV DLP systems for pre-press digital imaging. Emerging UV DLP medical treatments strive for localized, high contour precision for skin lesions in dermatology and for corneal disorders via collagen cross-linking in ophthalmology.

Standard center wavelengths include 365nm, 385nm, 395nm and 405nm. Single- or dual-wavelength configurations are available. Two models are available to support both 0.95 1080p- and 0.7 XGA-format DLP chipsets, providing high radiant power greater than 15W on 0.95 DLP and greater than 9W on 0.7 DLP. Thermal management features including water cooling of the LED array are designed to provide more than 10,000 hours of high-power operation.

Tags: DUV LEDs

Visit: www.innovationsinoptics.com