Canadian Plastics

Optical Housing Went Through Eight Iterations

In the development of new optical equipment that provides for early detection and management of glaucoma, eight different stereolithography (SL) designs for an internal optical housing were built before the product was finalized. A contributing fa...

April 1, 2004   Canadian Plastics



In the development of new optical equipment that provides for early detection and management of glaucoma, eight different stereolithography (SL) designs for an internal optical housing were built before the product was finalized. A contributing factor in the rapid production of the multiple prototype iterations was RenShape SL 7560 photopolymer supplied by the RenShape Solutions Tooling Group of Huntsman Advanced Materials. This SL material produces extremely accurate, complex parts with ABS-like durability.

In addition to holding the optical lenses for the unit, the housing is the support base for circuit boards and infrared LEDs.

“As the engineers refined the operating characteristics of the advanced equipment, they changed apertures and lens diameters, altering the shape, size and placement of the various components that are part of the housing,” explains Steve Slawson, engineering specialist at Welch Allyn, the manufacture of the glaucoma detection device. “With the multiple design iterations that were required, the processing speed and accuracy of the RenShape SL material were key to moving the project ahead in a timely manner.” The SL prototypes were built by FineLine Prototyping of Raleigh, NC.

Huntsman Advanced Materials 800-367-8793


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