Thorlabs, Inc
Knight Optical
Dontech, Inc.
American Polarizers Incorporation

5 Circular Polarizer Manufacturers in 2024

This section provides an overview for circular polarizers as well as their applications and principles. Also, please take a look at the list of 5 circular polarizer manufacturers and their company rankings. Here are the top-ranked circular polarizer companies as of July, 2024: 1.Dontech, Inc., 2.American Polarizers Incorporation, 3.Bright Shadow Technology Co.,Ltd.

Table of Contents

List of 5 Circular Polarizer Manufacturers

*Including some distributors, etc.

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  • United States of America
    • Thorlabs, Inc
      • United States of America Address: 43 Sparta Ave Newton, New Jersey, United States of America

      Manufacturer Overview

      Thorlabs, Inc, established in Newton, NJ in 1989, is a manufacturer of photonics equipment for research, manufacturing, and biomedical applications. Their product portfolio includes optical components, for use in imaging, sensing, and spectroscopy applications, spectrometers and analyzers used for research and industrial applications, fiber optic components and photomultiplier tubes, and imaging devices that capture and measure light signals for diverse applications in scientific research. The company has sales offices in the United States, United Kingdom, Sweden, China, and Brazil.

    • Dontech, Inc.
      • United States of America Address: 700 Airport Blvd, Doylestown, Pennsylvania, United States of America

      Manufacturer Overview

      Dontech, Inc. is a manufacturer of optical filters and components that was founded in 1971 in Doylestown, Pennsylvania, USA. The company produces optical filters and components used in various commercial and consumer electronics for display purposes. These include optical illuminators, rigid or flexible laminators, and complete optical assemblies such as touchscreen displays. Operating within AS9100D and ISO 9001:2015 certification standards, the company also offers additional design and testing services to customers with unique projects.

    • American Polarizers Incorporation
      • United States of America Address: 141 South Seventh Street, Reading, Pennsylvania, United States of America

      Manufacturer Overview

      American Polarizers Incorporation (API) was established in 1960 and is a manufacturer of polarized and non-polarized optical products in Reading, Pennsylvania. It offers linear and circular polarizers, filters, display enhancement films, as well as relevant services, including custom cutting and optical laminations. The products are used in the aircraft, electronics, photographic, animated display, and general scientific industries. The company owns Eclipse, Glare Bar, Sun Bar, and Polarmotion brands. That quality management system is backed by ISO 9001 certification.

    • Knight Optical

      Company Overview

      Knight Optical is a company that manufactures optical components based in the UK. The company offers services such as design, consultancy, custom packaging, testing, quality assurance, and others. They serve a wide number of industries including scientific, defense, medical, pharmaceutical, laser engineering and manufacturing. They also provide a wide range of coating capabilities for optical components throughout the ultraviolet (UV), visible and infrared (IR) spectra.They are ISO9001:2015 and ISO14001:2015 accredited and are providing quality products and services.

Circular Polarizer Manufacturer Ranking

*Including some distributors, etc.

Derivation Method

The ranking is calculated based on the click share within the circular polarizer page as of July 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.

Number of Employees

Newly Established Company

  1. Thorlabs, Inc: 1989 (35 years ago)
  2. Dontech, Inc.: 1971 (53 years ago)
  3. American Polarizers Incorporation: 1960 (64 years ago)

Company with a History

  1. American Polarizers Incorporation: 1960 (64 years ago)
  2. Dontech, Inc.: 1971 (53 years ago)
  3. Thorlabs, Inc: 1989 (35 years ago)

Circular Polarizer Manufacturers in United States

*Including some distributors, etc.

Global Distribution of Circular Polarizer Manufacturers by Country

*Including some distributors, etc.

Country Number of Companies Share (%)
United States of America United States of America 3 100.0%

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