Interference Filters0 pages

Interference Filters

Our product range comprises different
interference filter types:
•t andpass filters (line, band, and
B
broadband filters)
•t dge filters (long- & shortpass filters)
E
•t Notch filters (single to tripple notch)
•t UG 11: UV transmissive filters withD
out passband at 700 nm
•t ard bandpass filters
H
•t i-line filters
•t ERIL linear variable filters
V
•t V-filters: low-fluorescence, sharp
K
cut-on, glass-plastic laminated filters
Specifications
The specifications listed in our catalog
apply to standard interference filters,
while 95 % of filters are customized. We
supply filters smaller than 1 x 1 mm to
about 400 mm in diameter, depending
on the interference filter specifications.

Applications
Interference filters are used in various applications such as:
•t luorescence microscopy & Raman spectroscopy
F
•t nalytics: measurement, environmental, biotech, chemical, medical, etc.
A
•t Semiconductor microlithography
•t easuring, testing, and control engineering
M
•t ptoelectronics & telecommunication (e. g. LCD projector, bar code reader)
O
•t ensors (industry, automotive (rain sensors), safety and monitoring systems)
S
•t phthalmology & dentistry
O
•t Photo finishing
Substrates
Almost all inorganic glasses and glass ceramics are suitable as substrate material
for interference filters. The choice of substrate is depending on the specific
requirements of the finished interference filter. Coatable materials are:
•t Optical glass
•t orosilicate glasses (e. g. BOROFLOAT®33)
B
•t ptical filter glasses
O
•t lass ceramics (ZERODUR®)
G
•t Technical glass
•t Fused Silica
Quality Assurance
Quality control is based on statistical process control as well as on rigorous final inspection. Measurement instruments include a broad range of spectrophotometers,
vision systems, beam deflection, etc.

Advanced Optics
SCHOTT AG
Hattenbergstrasse 10
55122 Mainz
Germany
Phone +49 (0)6131/66-1812
Fax +49 (0)3641/2888-9047
info.optics@schott.com
www.schott.com/advanced_optics

Version May 2013

Product Information
Interference filters, using the interference effect to transmit or reflect certain
spectral ranges of electromagnetic radiation, are produced by applying thin layers with different refractive indices on a
substrate. SCHOTT supplies standard
and customized interference filters
within the spectral range from 200 nm
to 3000 nm. Develop­ ent, design and
m
production are realized according to
customers’ specifications. The coatings
of the interference filters are manufactured by deposition process in high vacuum or using a Mag­ etron-Sputteringn
Tool. The processes, ion assisted
evaporation and reactive ion plating,
lead to very hard and compact thin
films. As a consequence, these interference filters have an excellent climatic resistance and a very stable spectral characteristics with respect to temperature
and humidity changes.