fixed focal length lens

Fixed Focal Length Lens

Features of the Module

  • Superior image quality with consistent focal length.
  • High precision optics with minimal distortion.
  • Wide range of focal lengths available.
  • Robust and durable construction.
  • Optimized for various applications, including industrial, medical, and scientific imaging.

Description of the Module A Fixed Focal Length Lens is an optical lens designed to maintain a constant focal length, ensuring consistent imaging performance across a specified field of view. Unlike zoom lenses, which allow variable focal lengths, fixed focal length lenses offer superior optical quality due to their simpler design. This simplicity minimizes aberrations, distortion, and other optical defects, making them ideal for high-precision applications.

Fixed Focal Length Lenses are commonly used in environments where high image quality and consistency are critical, such as in machine vision systems, microscopy, and other precision optical systems. These lenses are engineered with high-quality glass elements and coatings to optimize light transmission and reduce reflections, ensuring clear and sharp images even in challenging conditions. The absence of moving parts also contributes to their durability and reliability, making them a preferred choice for long-term, high-precision applications.

General Specification, Manufacturing Tolerances, and Limitations

SpecificationDetail
MaterialHigh-quality optical glass, fused silica, or specialized materials
Focal Length Range5 mm to 300 mm
Aperture Rangef/1.4 to f/22
Surface Quality40-20 Scratch-Dig
Transmission> 95% with anti-reflective coatings
Distortion<0.1%
Field of ViewVaries by focal length
CoatingCustom AR coatings, UV/IR options available
Mounting TypeC-mount, CS-mount, or custom

What is the Module Composed of? And What’s the Classification?

  • High-quality optical glass elements
  • Durable metal housing
  • Anti-reflective coatings
  • Iris diaphragm (for adjustable aperture lenses)

Classification

  • Wide-Angle Lenses: Typically have focal lengths less than 35mm, offering a broader field of view.
  • Standard Lenses: Focal lengths around 50mm, providing a natural perspective.
  • Telephoto Lenses: Focal lengths above 70mm, ideal for magnifying distant objects.

What’s the Key Components?

  • Optical Elements: Precisely ground and polished lenses that ensure high image clarity and minimal aberrations.
  • Housing: Provides structural integrity and protection for the optical elements.
  • Mounting Interface: Allows the lens to be securely attached to cameras or other optical systems.

What’s the Critical Specs?

  • Focal length consistency, ensuring minimal variation in image magnification and field of view.
  • Low distortion levels, particularly for applications requiring high geometric accuracy.
  • High transmission rates to ensure bright and clear imaging, even in low-light conditions.

How to Evaluate the Performance? Performance of Fixed Focal Length Lenses can be evaluated through several optical tests, including:

  • Modulation Transfer Function (MTF): Measures the lens’s ability to reproduce fine details.
  • Distortion Test: Evaluates the extent of image warping or bending.
  • Transmission Efficiency: Assesses the amount of light that passes through the lens compared to the amount reflected or absorbed.

How to Select the Module Selection of a Fixed Focal Length Lens should be based on the specific requirements of the application, including desired field of view, depth of field, and the operating environment. Consideration should also be given to the lens’s compatibility with the existing optical system, including mounting types and wavelength compatibility.

What’s the Application?

  • Machine vision systems
  • Microscopy
  • Security and surveillance cameras
  • Medical imaging devices
  • Industrial inspection systems
  • Scientific research instrumentation

Why Choose Bote Optics Bote Optics offers a comprehensive range of Fixed Focal Length Lenses designed to meet the rigorous demands of various high-precision applications. Our lenses are manufactured with state-of-the-art technology and subjected to stringent quality control processes to ensure optimal performance and reliability. With a commitment to innovation and customer satisfaction, Bote Optics provides tailored solutions that deliver superior imaging quality, durability, and value. Choose Bote Optics for your fixed focal length lens needs and experience unparalleled optical performance.