Filter Glass

Custom Colored Glass Filters, Bandpass, Longpass, Neutral Density Filters

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Advantages of Colored Glass Filters

Opticology, Inc. stands as a pioneer in the manufacturing of custom absorptive-type optical filters, catering to an extensive array of applications, including OEM, research, military, and astronomical needs. Our specialized filters are meticulously engineered to attenuate light in the ultraviolet (UV), visible, and the near-infrared (NIR) regions.

Our colored glass filters offer a compelling alternative to traditional thin-film coated filters, with numerous advantages:
   
 Enhanced Durability: Colored glass filters are renowned for their exceptional durability. Unlike coated filters, they can withstand rigorous environmental conditions, ensuring longevity and reliability.

    Ease of Maintenance: Cleaning and handling colored glass filters is a breeze. Their robust construction makes them less prone to damage during routine maintenance, reducing downtime and costs.

    Radiation Resilience: Colored glass filters exhibit remarkable resilience to radiation from high-power lasers, a crucial feature for applications requiring exposure to intense laser beams.

Damage Threshold Excellence:

Opticology, Inc. takes pride in offering colored glass filters with impressive damage thresholds, reaching up to 25W/cm^2 CW for select glasses. This remarkable performance ensures that our filters can endure the most demanding laser applications without compromise.

Experience Precision and Reliability:

Our commitment to precision and innovation sets us apart in the field of optical filters. Whether you require filters for research, military, astronomical observations, or OEM solutions, Opticology, Inc. is your trusted partner. Our colored glass filters are meticulously crafted to enhance your optical systems' performance while providing durability and cost-efficiency.

Join a diverse clientele that relies on Opticology, Inc. for cutting-edge optical solutions. Explore our range of colored glass filters and inquire about our extensive lineup. Trust in our expertise to elevate your projects to new heights of precision and reliability. Opticology, Inc. – where innovation meets optical excellence.

Expanding Applications with Colored Glass Filters:

Colored glass filters find applications across a multitude of industries and technologies. In microscopy, they aid in contrast enhancement and sample analysis. Astronomers rely on them for light pollution reduction and spectral isolation. In the realm of laser technology, these filters are indispensable for beam shaping and laser safety.


*Damage threshold 25W/cm^2 CW for some glasses, please inquire.
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Colored Glass Filters As A Versatile And 
Economical Means For Optical Filtering

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Custom Solutions for Your Unique Needs:

Opticology, Inc. understands that one size does not fit all. That's why we offer custom solutions tailored to your specific requirements. Our team of optical experts collaborates closely with you to design and manufacture colored glass filters that precisely match your project's needs.
A Tradition of Excellence:

With a legacy spanning decades, Opticology, Inc. has earned a reputation for excellence in optical solutions. Our commitment to quality, precision, and innovation ensures that when you choose us for your colored glass filter needs, you're choosing the very best in the industry.

Unlock the Potential of Colored Glass Filters:

Whether you're exploring new frontiers in research, protecting sensitive instruments, or enhancing the visibility of distant celestial objects, colored glass filters from Opticology, Inc. empower you to achieve your goals with unparalleled precision and reliability. Explore our diverse range of colored glass filters today and experience the difference of optical excellence.



Complementary filter design service is available – provide your requirements and we will select glass type and generate fabrication specifications. This includes an engineering drawing free of charge.

Applications Include:

  • Neutral Density Filters (Spectrally flat attenuation)
  • High-Power Laser Attenuation
  • Longpass, Shortpass or Bandpass Filter
  • Blue, Green, Yellow, Orange, and Red Filters
  • Heat-absorbing filters
  • Infrared (IR) transmitting/blocking filters
  • Ultraviolet (UV) transmitting/blocking filters
  • Base substrate for blocking prior to applying thin-film coating
Colored Filter Glass Opticology

 Density Filter Sets

Opticology provides absorptive-type Neutral Density Filter Sets that provide flat attenuation across the visible spectrum.  These sets are custom made to your specifications, please inquire about typical sets generally available from stock.  In addition, Opticology routinely fabricates Density Filter Sets for the Ultraviolet UV and Infrared IR, either over a wavelength range or specific wavelength.  Additionally, Opticology fabricates Equal Thickness Neutral Density Filter Sets by varying the glass type so that each density filter has the same thickness which is useful in imaging systems when changes filters without the need to refocus.  Any of the filter sets can be Antireflection (AR) Coated for the region of interest.  

 Custom Glass Filters Polished to Transmission

Upon request, Opticology polishes filter glass to your desired transmission not merely to a specified thickness. Since colored filter glass can vary as much as 20% from melt (material lot) to melt, for accurate filtering applications polishing to thickness is unacceptable. Using this process, Opticology can hold tight optical density (OD) specificationsand has done so to better than 0.020 OD.

Ultra-Precision Colored Glass Filters

When required, Opticology fabricates filter glass to high dimensional tolerances and with precision quality surfaces for laser, astronomical, or military/defense applications. Parts can be finished to precision to the following specifications:
  • Transmitted Wavefront: 1/20 wave
  • Thickness: +/-0.02mm
  • Parallel: 1 arcsecond
  • Scratch/Dig: 10/5
Having our own optical fabrication facilities gives us the ability to provide you with custom components and one-on-one project consultations at a competitive price.

Variable Neutral Density Filters

This product is a compact, ½”-optical-post-mountable system and consists of two rotating wedges that varies the optical thickness of the colored glass filter. A simple turn of a knob varies the transmission and can be calibrated as needed. These are customizable for optical density range or filter type and therefore built to order

Please Feel Free To Email Us With Your Requests For Quotations Or Inquires.

Submit your request and we'll get back to you soon.

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