Optical specifications are crucial in designing and manufacturing optical components to ensure they meet performance standards and guide production effectively. They serve two main purposes:
Defining acceptable limits for key parameters governing system performance.
Specifying the resources (time and cost) needed for manufacturing.
Understanding optical specifications requires familiarity with common parameters for lenses, mirrors, windows, and other optical elements. These parameters include manufacturing, surface, and material specifications, which are essential for a comprehensive understanding of optical lenses and related components.
Manufacturing Specifications:
Diameter Tolerance:
The diameter tolerance of round optics specifies the acceptable range of diameter values. Although it doesn’t directly affect optical performance, it’s crucial for mechanical considerations when mounting the optics. Deviations from nominal diameter can lead to eccentricity in the mounted component. Typical manufacturing tolerances range from +0.00/-0.10 mm (typical quality) to +0.000/-0.010 mm (high quality).
Center Thickness Tolerance:
This specification refers to the thickness at the center of an optical element, such as a lens. It is measured on the mechanical axis of the lens, which lies between its outer edges. Changes in center thickness can impact optical performance, as they influence the optical path length of light passing through the lens. Standard manufacturing tolerances vary from +/-0.20 mm for common mass to +/-0.010 mm for high quality.
MOK Optics Co LTD, a professional manufacturer of optical components based in China, offers lenses , with tolerances as precise as +/-0.01mm or +/-0.001mm. We provide custom design services and solutions for various optical systems. Contact us for inquiries or further information.