Fresnel lenses for medical lighting

• Shadowless lighting for operating theatres
  

This supersedes the previous generation composed of angular sectors. Each deflecting prism is individually polished and added on in the tool.

This monobloc part is injection moulded in optical quality PMMA, weight 2 kg and Ø 500 mm, and is over 15 mm thick in places.

Quality level: 30 µm form faults and roughness ≤ 10 ηm.