Image-Quality Filters

Defining Boundaries in Light Control

Image quality optics Hard-coated Broadband Andover Corporation

Andover Image-Quality Filters

Exceptional Clarity for Demanding Optical Applications

Image-quality optical filters are designed for applications that demand superior resolution and imaging precision. These filters use high-purity, striation-free optical materials and advanced coatings to minimize distortion and maximize clarity.

Each image-quality filter is characterized by three essential properties:

  • Transmitted Wavefront: Typically λ/4 per inch or better, ensuring minimal distortion
  • Parallelism: 30 arc seconds or better, maintaining precise image alignment
  • Surface Quality: Precision-polished surfaces with optimized AR coatings to eliminate ghosting and maximize throughput

Andover Corporation's image-quality filters are manufactured using advanced polishing techniques and high-grade optical materials. By combining precision substrate preparation with optimized coating positions and anti-reflection treatments, we eliminate multiple reflections and fringe patterns that could compromise image quality. For applications demanding even higher performance, we can achieve transmitted wavefront quality of λ/10 and parallelism of 10 arc seconds.

Image-Quality Filter Technologies

Engineered with cutting-edge polishing and coating techniques, our filters maintain strict optical tolerances for high-resolution imaging systems.

Precision Substrate Construction

Our filters begin with premium-grade optical materials that are meticulously screened for freedom from striations and inclusions. Each substrate undergoes our proprietary two-stage polishing process to achieve exceptional flatness and parallelism, with surface quality up to 20-10 scratch-dig.

Advanced Coating Architecture

We employ sophisticated multi-layer coating designs optimized for imaging applications:

  • External surfaces receive high-efficiency AR coatings to eliminate ghost images
  • Internal coating positions are precisely engineered to prevent interference patterns
  • Layer stress is carefully controlled to maintain substrate flatness
  • Optional enhanced durability coatings for demanding environments
By partnering with Andover Corporation, you join leading observatories worldwide who rely on our filters for groundbreaking astronomical research. From ground-based telescopes to space-borne instruments, our space-qualified filters continue to enable critical scientific discoveries.

Imaging Filters Product Solutions

Where Scientific Precision Meets Optical Excellence

Welcome to our Image-Quality Filter collection, where exceptional clarity meets uncompromising precision. Each filter is meticulously crafted using striation-free materials and advanced polishing techniques to achieve superior wavefront quality and optimal parallelism. Our solutions ensure pristine image fidelity for your most critical imaging needs.

Looking for a tailored solution? Contact us to request a custom quote and discover how our filters can meet your exact image-quality requirements.

Polarizers Andover Corporation

Image Quality Linear Polarizers

Premium linear polarizers engineered for high-resolution imaging systems. These precision-crafted components ensure maximum light control while maintaining exceptional image quality.
  • Extinction Ratio Greater than 500:1 across visible spectrum
  • Transmitted Wavefront λ/4 per inch standard
  • Clear Aperture Available up to 76.2mm diameter
High Extinction Ratio
Superior Wavefront
Large Format
Image quality optics

Image Quality Optics

Precision-crafted optical components delivering exceptional performance for demanding imaging applications, manufactured from premium-grade, striation-free materials.
  • Surface Quality 20-10 scratch-dig standard
  • Parallelism Down to 10 arc seconds
  • Transmitted Wavefront λ/4 per inch standard
Ultra-Precision
Superior Flatness
Premium Grade

Frequently Asked Questions

What are Image-Quality Filters?
How do Image-Quality Filters differ from standard commercial filters?
What applications benefit from using Image-Quality Filters?
Can Andover Corporation provide custom Image-Quality Filters?
What documentation accompanies Image-Quality Filters?

From Prototype to Production

Custom Fabrication and High-Volume Manufacturing

Our vertically integrated facility handles both specialized custom projects and large-scale production runs with consistent quality and short lead times.
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Markets

LiDAR Optical Filters for Remote Sensing and Mapping

Semiconductor & Advanced Manufacturing

Machine Vision & Industrial Automation

Military & Defense Systems

Biomedical & Life Sciences

Aerospace & Space Optics | Andover

Astronomy & Space

Quality isn't just a metric

- it's our foundation.

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On-Time Delivery Rate
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ISO 9001:2015

ISO 9001:2015

Quality Management

 AS9100:2016

AS9100:2016

Aerospace Standard

 ITAR Registered

ITAR Registered

Defense Compliance

Andover Insights & Innovations

Discovering new possibilities in optical filtering

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A mesmerizing, prismatic view through a teleidoscope, showcasing a kaleidoscopic pattern of vibrant, refracted light. The intricate geometric reflections create a dynamic interplay of colors, with crystalline shapes forming a symmetrical, ever-shifting optical display. Unlike a traditional kaleidoscope, a teleidoscope transforms real-world scenes into abstract patterns using an optical lens and mirrors, making it a fascinating optical instrument for exploring symmetry and light refraction.

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