Types and Models of Optical Lens Machining
2025-02-17
Optical lens processing encompasses a wide variety of types, primarily categorized by shape, function, and material.
Optical lenses are manufactured in a wide variety of types, primarily classified by their shape, function, and material.
Types
1. Positive lenses: thicker in the center and thinner at the edges, converging light rays. Depending on their shape, positive lenses are further classified into biconvex lenses, plano-convex lenses, and positive meniscus lenses, etc.
2. Negative lenses: thinner in the center and thicker at the edges, used to diverge light rays. Types include biconcave lenses, plano-concave lenses, and negative meniscus lenses, etc.
3. Cylindrical lenses: used to focus incident light rays onto a line or to change the aspect ratio of an image, usually forming a line-shaped image and capable of controlling the direction of the light beam.
Model
The model of an optical lens is usually determined by parameters such as its material, diameter, radius of curvature, effective focal length, thickness, working wavelength, and whether or not it requires coating. For example, the lens may be made of K9 glass or fused silica, with a diameter of 12.7mm, 25.4mm, or 50.8mm, etc., and the focal length and thickness will also vary. In addition, depending on the application requirements, the lens may also undergo coating treatment for specific wavelengths.
In summary, optical lenses come in a wide variety of types and models. Selection should be matched to the specific application scenario and requirements.
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