daily coverage of the optics & photonics industry and the markets that it serves
Featured Showcases
Photonics West Showcase
Product Announcement

Knight Optical’s Dichroic Filters for Medical Analysers

08 Jul 2022

Looking to improve you medical system? Then look no further. Knight Optical presents to you their Dichroic colour filters range.

These Dichroic colour filters are typically used in scientific instrumentation or/and medical systems in particular palm vein scanners, ophthalmic diagnostics, professional eye care equipment from optical equipment or ophthalmic instruments.

 Our Dichroic filters:

  • Have a hard dielectric coating and are designed to offer high transmission over a specific wavelength while reflecting all other wavelengths.
  • Offer superior contrast between transmitted and reflected wavelengths. Having a dielectric coating they are perfect for high power applications and do not show the strong fluorescence of certain glass filters.
  • Are temperature resistant and can be used to reflect heat away from hot lighting systems in addition to their colour correcting properties, unlike traditional polyester type colour filters that melt and distort under thermal conditions.

We hold a massive inventory of Bandpass, Long pass, Short pass, Band-blocking and Color-correction filters.

  • Stock sizes of 12.5mm, 25mm dia and 50x50mm squares x 1mmthk.
  • Custom shapes and sizes at short notice, in most cases turned around within 1 week.
  • Coated on Borofloat substrates for excessive thermal shock applications.

Typical specs:

Material:                                          Borosilicate or equivalent, Sodalime
Diameter:                                         +0.0/-0.20 mm
Length/Width:                                +/- 0.25mm
Thickness:                                        +/-0.20mm
Wavelength:                                    300nm-1200nm dependant on type
Wavelength Accuracy:                  +/- 5nm
Transmission:                                  Tmax=95% dependant on type and substrate

All our Dichroic filters are checked for quality in our state-of-the-art Metrology laboratory using our Varian Cary 5000 spectrophotomer’s fitted with UMA, allowing us to work to the highest QA standards and meet the tolerance specifications on these precision components.

Contact our technical sales team to discover how Knight Optical’s high quality Dichroic Filters and superior service can improve your instrumentation and supply chain experience.

Tel +44(0)1622 859444 | Email contact@knightoptical.co.uk

Tel +(001) 401 583 7846 | Email usasales@knightoptical.com

Knight Optical Ltd
Roebuck Business Park
ME17 1AB
United Kingdom
Tel: 44 (0)1622 859444
Fax: 44 (0)1622 859 555
Email Us
Web Site
© 2023 SPIE Europe
Top of Page