Uv-Guard High Performance Filters, Balzers, EIS Optics, Oerlikon Optics, Unaxis

High Performance UV-Blocking Filter

Ocean Thin Films UV-Guard™ filters are high performance filters, blocking ultraviolet and infrared radiation from high intensity arc lamps in projection display systems. This filter is also available in an extra blocking (XB) version for extremely high UV blocking. The high level of blocking ensures stringent requirements on UV suppression for microdisplay panels and other optical components, whereas the optional IR blocking reduces the heat load on these components. The UV-Guard™ and UV-Guard™ XB filters’ excellent transmission for visible light results in high brightness and neutral colors. These filters are produced with Ocean Thin Films’ patented sputtering deposition technology, providing very dense filter coatings with excellent optical stability both at higher operating temperatures and varying environmental conditions.

BENEFITS:
• Excellent UV-rejection and IR suppression with high transmission for visible light.
• Narrow cut-on/cut-off edge tolerances (< ± 1%)
• Very steep cut-on slopes available
• Excellent spectral uniformity and stability
• Superior optical stability at higher operating temperatures (spectral stability < 1nm/100°C) and in varying
humidity environment (<0.5 nm shift)
• Excellent mechanical properties (scratch resistant, adhesion)
• High volume production capabilities with consistent high quality.
• Engineering support for custom designed UV Blocking filters

APPLICATIONS:
UV-Guard™ filters are specially designed for the individual requirements in all major projection display
system architectures: DLP®, tLCD and LCOS. Other application areas include lighting and instrumentation.

Schematic of UV-Guard™


1. Lamp with reflector
2. UV-Guard™
3. Blocked UV radiations
4. Blocked IR radiation
5. Transmitted visible light