Narrow Bandpass Infrared Pass Filter

Product Features: - The Infrared Pass Filter is a type of optical filter that allows infrared light to pass through while blocking visible light. - They are used in a variety of applications, including night vision, spectroscopy, and laser marking. - Infrared pass filters are typically made from glass or plastic and coated with a thin layer of metal, such as gold or silver. - The coating is designed to reflect visible light while allowing infrared light to pass through. - Infrared pass filters are available in a variety of sizes and shapes. - They can be custom-made to meet the specific requirements of an application.

Benefits of Infrared Pass Filters: - Increased night vision - Infrared pass filters can help to improve night vision by blocking out visible light and allowing only infrared light to reach the eye. - Improved spectroscopy - Infrared pass filters can be used to improve the performance of spectrometers by blocking out visible light and allowing only infrared light to reach the detector. - Increased laser marking accuracy - Infrared pass filters can be used to improve the accuracy of laser marking by blocking out visible light and allowing only infrared light to reach the target.

Applications of Infrared Pass Filters: - Night vision devices - Spectroscopy - Laser marking - Medical imaging - Machine vision

Key Usage Points: - Easy to install - Durable - Available in a variety of sizes and shapes - Can be custom-made to meet specific requirements

Detailed Specifications: - Diameter: 4.9/7/8/10/12/28mm - Filter Material: Optical Glass - Passband Range: 940nm - Blocking Range: 400-935nm - Thickness: 2mm - Clear Aperture: >90% - Surface Quality: 40-20 Scratch-Dig - Parallelism: <30 arcmin Additional Features: - High transmission rate - Low insertion loss - Excellent environmental stability

**Relevant External Links:**

Wikipedia: Infrared Pass Filter

Thorlabs: Infrared Pass Filters