Development of applying interference coating filter techniques on viewfinders to protect against harmful infrared radiation at hot workplaces.

Project manager: Grzegorz Gralewicz Ph.D. (Eng.)

Project summary:

Assumptions have been developed to construct interference coating filter, which uses the principle of so-called interferential forced higher transmission in a thin, metallic layer specified in a spectral range. Use of this principle enabled design and construction of optical filter, which ensures an adequate level of visible light transmission at the same time fully blocking harmful infrared radiation. Then interference models of metallic-dielectric filters on glass and polycarbonate substrates were developed. Protective filter models were designed and denominated in accordance with the requirements PN-EN 172:2005. Developed filters were compared with metallic-bouncing filters, which are currently the best solution on the market if looking for filters protecting from infrared radiation.

Unit: Department of Personal Protective Equipment

Duration: 01.01.2011 – 31.12.2013