Dongguan Felix Glass Co., Ltd. E-mail: james@felixglass.com - Tel: +86 185 6503 2888

Optical Filters

Optical filters selectively transmit or block specific wavelengths to eliminate stray light, suppress interference and optimize imaging & detection accuracy. Hong Kong Felix Glass Co., Limited manufactures bandpass, IR cut, longpass, shortpass, neutral density, dichroic and custom optical filters on substrates including fused silica, BK7, sapphire and optical glass. We precisely customize center wavelength (CWL), full width half maximum (FWHM), optical density (OD), transmission rate and edge steepness via high-vacuum ion-assisted coating. Filters are widely used for machine vision, biomedical testing, spectroscopy, laser equipment, surveillance cameras, automotive sensing and aerospace optical systems, with full OEM & ODM coating customization service.Download pdfDownload pdfDownload pdfDownload pdfDownload pdf

Longpass Shortpass Filters

Premium longpass and shortpass optical filters are professional edge cutoff optical components designed for accurate spectral screening. Featuring ultra-sharp wavelength transition, high passband transmittance and deep out-of-band suppression, these edge filters effectively filter stray light and optimize optical system precision. Adopting advanced hard-coated thin-film technology, our spectrum cutoff filters deliver excellent thermal stability, low fatigue and consistent optical performance under long-term industrial working conditions. We provide fully customizable cutoff wavelength, size and coating to meet unique vision detection, spectral analysis and optical instrument requirements. Widely utilized in machine vision imaging, fluorescence detection, biochemical analyzers, optical sensing and scientific laboratory equipment. Felix Glass offers reliable OEM customization, from prototype samples to large-volume mass production.

IR Cut / IR Pass Filters

Premium IR Cut and IR Pass optical filters control infrared spectrum selectively: IR Cut filters block unwanted IR light to correct color distortion; IR Pass filters isolate infrared wavelength for night vision & thermal sensing. Advanced durable thin-film coating ensures stable transmittance under temperature fluctuation, avoiding performance drift during long-running equipment operation. Full customization on cutoff wavelength, dimension and coating formula available per your optical design. Commonly equipped on automotive lens, security surveillance cameras, machine vision inspection and infrared detection instruments. Felix Glass supplies OEM prototype and bulk mass production with strict pre-shipment QC inspection.
James Fu, Sales Director of FELIX OPTICAL GLASS, and a poster displaying contact information for an optical glass deep-processing factory.James Fu, Sales Director of FELIX OPTICAL GLASS, and a poster displaying contact information for an optical glass deep-processing factory. 2
Learn more from our FAQ
What is the minimum order quantity for custom precision optical glass components?

FELIX OPTICAL GLASS offers highly flexible MOQs to support customer projects, including prototype testing, small-batch trial orders, and high-volume production. All products can be fully customized to your drawings, tolerances, and application standards. Please send us your specifications, and we will reply within 1-5 hours and provide an accurate quotation after careful evaluation within 1-2 days.

Can I get free glass samples for testing before bulk order?

Yes, our FELIX GLASS factory supports sample testing for a wide range of precision optical glass components and assemblies. The lead time for sample production is 3 to 7 working days. Please contact us today to arrange samples and obtain a customized solution that meets your needs.

What is the production lead time for custom optical glass components?

A: The production cycle for standard samples is 3-10 working days, while mass production requires 15-35 working days, depending on the complexity of the product and the order quantity. We provide reliable precision optical glass components and fast delivery services for orders from industries such as defense, industrial equipment, medical devices, shipbuilding, robotics, automotive, and aerospace. Please submit your project details so we can provide you with an accurate delivery schedule.

Are your optical glass products ISO, CE and RoHS certified?

All precision optical glass components from FELIX OPTICAL GLASS comply with ISO quality system standards as well as CE and RoHS requirements. We provide comprehensive test reports, spectral graphs, material certificates, and inspection documents for customer review. Please feel free to request complete certification details and a formal quotation at any time.

Do you offer one-stop custom optical glass processing services?

Yes. We offer a full range of precision optical glass component processing services, including CNC machining, precision grinding, optical polishing, chemical/physical tempering, vacuum coating (AR anti-reflective coating, AF anti-fingerprint coating, AG anti-glare coating, IR infrared coating), and screen printing. From raw materials to finished products, every step is completed in our own factory. Please tell us your needs, and we will provide you with the most cost-effective solution.

CONTACT US NOW FOR A QUOTE
We will respond promptly within 1 to 5 hours and provide an optimal, formal quotation within 1 to 2 days. Partnering with us is the smartest choice—start a mutually beneficial partnership today!
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With 19 years of experience as a precision optical glass expert, we provide comprehensive and satisfactory customized solutions.

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