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. Whether your application demands λ/4 or λ/10 performance, 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.

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 (λ/10 available)
Clear Aperture Available up to 76.2mm diameter

High Extinction Ratio
Superior Wavefront
Large Format

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
Surface Accuracy Up to λ/10 wavefront

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?

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LiDAR Optical Filters for Remote Sensing and Mapping

Semiconductor & Advanced Manufacturing

Machine Vision & Industrial Automation

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Military & Defense Systems

Biomedical & Life Sciences

Aerospace & Space Optics | Andover

Astronomy & Space

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ISO 9001:2015

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Andover Insights & Innovations

Discovering new possibilities in optical filtering

A 3D-rendered illustration of an autonomous vehicle using LiDAR technology for navigation and safety. The image highlights key LiDAR-enabled features such as lane change assist, emergency braking, parking aid system, and blind spot detection. The vehicle's sensors scan the surrounding environment, detecting nearby cars and road obstacles to enhance driving automation and collision avoidance.

Optimizing LiDAR Performance with Optical Coatings and Filters

By Andover Corporation | June 30, 2021

LiDAR (Light Detection And Ranging) technology is rapidly transforming industries by providing high-resolution, real-time mapping and sensing capabilities. Unlike RADAR,...

An array of precision optical filters manufactured by Andover Corporation, featuring red and yellow coated filters housed in black anodized metal rings. These filters are designed for applications in imaging, sensing, and laser systems, offering precise wavelength control and high-performance optical coatings. The organized layout highlights the variety of filter specifications available for scientific, industrial, and defense applications.

How Much Will My Optical Filter Cost?

By Andover Corporation | June 2, 2021

Optical filters are a critical component in many imaging, sensing, and detection systems, but balancing cost and performance can be...

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