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Negative Meniscus Lenses

What's the material of Yutai's Negative Meniscus Lenses? * Optical glass with different Refractive Index from 1.47 to 2.0 ; * Fused silica for both UV and IR wavelength series ; * Sapphire for VIS to MIR wavelength; * Infrared Grade material for NIR, MIR & LWIR.
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What is Negative Meniscus Lenses?
Negative meniscus lens is a meniscus lens whose edge thickness is thicker than central thickness, it can make light to be dispersed.

What is the application of Negative Meniscus Lenses?
1. Eyewear: especially for correcting farsightedness and nearsightedness, providing a more comfortable visual experience.
2. Laser system: used to adjust the focusing state of the laser beam to improve the accuracy and efficiency of the laser.
3. Optical instruments: used to improve optical paths and imaging effects in a variety of optical measuring and analysing instruments.
4. Spectroscopy: the application of meniscus lenses in spectroscopy is mainly reflected in their ability to provide higher performance, especially in reducing spherical aberration and improving imaging quality.
5. Thermal imaging: the use of meniscus lenses in thermal imaging also benefits from their ability to reduce spherical aberration, thus providing sharper and more accurate imaging.

What does it mean when you use a lens with a positive meniscus or negative meniscus shape?
Positive meniscus lenses is convex-concave lens thicker at the center than at the edges, which frequently used for beam focusing applications. Negative meniscus lenses is convex-concave lens thinner at the center than edges, which frequently used for beam expanding applications.

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