| Customization: | Available |
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| After-sales Service: | Technical Support |
| Warranty: | 3years |
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Meniscus lens is a lens which has two spherical curved surfaces, convex on one side and concave on the other side.
It is thicker at the center than at the edges. The lens provides a smaller beam diameter in order to reduce the beam waste and spherical aberration. When a meniscus lens is combined with another lens, the focal length is shortened and the numerical aperture of the system is increased. This reduces the image distortion and increases image resolution.
There are two types of meniscus lenses: positive meniscus lenses and negative meniscus lenses.
Positive lenses are used in applications that require small focal number, which is less than 2.5. For focal numbers ranging between 2.5 and 10, meniscus lens can minimize spot size and enhance image quality. The concave side of the positive lens has a smaller curvature, and the convex side has a greater curvature.
Negative meniscus lenses are used for applications using infrared materials with high refractive index. These lenses are used asan alternative to other negative lenses with a greater curvature on the concave side and a smaller curvature on the convex side.They are used in beam expanding applications that require minimal spherical aberration.
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Production Name
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Custom made 50mm optical glass negative Meniscus lens for sale
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Material
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K9 glass
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Diameter
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50 mm
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Focal length Tolerance
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2%
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Center Thickness Tolerance
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±0.05mm
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Edge Thickness Tolerance
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±0.02mm
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Surface Quality
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60/40
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Surface Flatness
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λ/4
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Clear Aperture
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>98%
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Coating
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Ar Coated
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Application
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Optical Equipment
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Meniscus Lens can increase the NA of the system while only adding slightly to the total spherical aberrations. The Negative Meniscus Lens is used to increase the focal length of another lens while maintaining the angular resolution of the optical assembly.
We can customized all kinds of optical lens and prisms according to the drawing and your request.
Packaging Details:
Inner packing:
Special protective packing for optical products.
Outer packing:
Carton, Shock absorption material and bubble wrap.
Delivery Time:
7-20 days.
Delivery:
Generally, we use the FedEx, DHL, UPS, TNT, SF, etc. Please note it before delivery. Transit time depends on the express and destination. By the way, we would re-check all the details before delivery.
Q:Could you customize our logo on the product ?
A:Yes, we can customize your logo as your demand.
Q:What's your MOQ?
A:Generally, our MOQ is 1000pcs. But we accept lower quantity for your trial order. Please free to contact us.
Q:Hong long does it need to make production ?
A:As usual, our production time is 7-20days.
Q:What's your payment ?
A: 50% as deposit, and 100% before delivery. We'll show you the photos of the products and packages before you pay the balance.
Q:What's your delivery way?
A: EXW, FOB, CFR
Q:How to proceed an order ?
A: Firstly, let us know your requirements or application. Secondly, we quote according to your requirements or our suggestions.Thirdly, customer confirms the samples and places deposit for formal order.
Q:What package do you provide ?
A: Generally, we pack our goods in special protective packing for optical products for inner packing, anti-shock material with bubble wrap for the carton.
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