Description
Meniscus Lenses are concave-convex lenses that contain both positive and negative meniscus lenses. The Positive meniscus lenses are thicker in the middle than at the edges, allowing light to converge, and are designed to reduce tertiary spherical aberration. When they are used to converge a collimated beam, the convex side should face the light source to reduce spherical aberration.
The negative meniscus lenses are thinner in the middle than at the edges and are designed to reduce tertiary spherical aberration. When used to diffuse the beam, the convex side should face the beam to reduce spherical aberration.
Factory Custom Optical BK7 K9 Glass Meniscus Lens
Specifications
| Material: | H-K9L |
|---|---|
| Diameter: | 12.7 mm |
| ROC1: | 7.5 mm |
| ROC2: | 72.4 mm |
| Diameter Tolerance: | +0/-0.1mm |
| Thickness Tolerance: | ±0.1mm |
| Surface Quality: | 60-40 Scratch-dig |
| Flatness: | 1/4 lambda |
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Features
Its shape is meniscus, with one side convex and the other side concave. This kind of lens can be a converging lens or a diverging lens, which is determined by the refractive index, curvature and radius.
Applications
The main application areas of meniscus lenses include optical components in laser systems, thermal imaging components in infrared optics, UV cut-off optical crystals in ultraviolet optics, and sensitive components in high-energy detectors.
Frequently Asked Questions
What is the difference between a positive meniscus lens and a negative meniscus lens?
What materials of meniscus lenses can UM OPTICS provide?
What is the advantage of meniscus lens?
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