| After-sales Service: | Return or Replacement |
|---|---|
| Warranty: | 2 Years |
| Usage: | Beam Dispersion, Beam Split, Optical |
2023 Customized Zinc Selenide ZnSe Plano-concave Lens Diameter 25.4mm
A plano-concave lens is a lens that has a flat surface on one side and a concave surface on the other side. The focal length of a plane-concave lens is negative, allowing the beam to diverge. Therefore, it can be used in optical system for beam expansion, light projection or to increase focal length.
Oplens can not only customize the plano-concave lens with common materials of N-BK7 (Shott) and fused silica, but also customize the plano-concave lens of any glass material.
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Material: |
Optical Glass |
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Surface Flatness |
< λ/5 @ 633nm |
| Scratch/Dig |
< 40/20 (both sides) |
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Eccentricity: |
≤ 1arcmin |
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Focal Length Tolerance |
< ± 1% |
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Diameter Tolerance: |
< + 0.00/ - 0.02mm |
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Thickness Tolerance: |
< ± 0.05 |
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Clear Aperture: |
≥ 95% of diameter
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Coating: |
AR OR BBAR |
| Diameter Range: | 5~260mm |
| Blacking Edge | GT-7 OR EQUIVALENT |
***Oplens can not only customize the plano-concave lens with common materials of N-BK7 (Shott) and fused silica, but also customize the plano-concave lens of any glass material.
How does concave lens work?
The plano-concave lenses are used to expand light beams or to increase focal lengths in optical systems. The Biconcave Lenses are often used to expand light beams or to increase focal lengths in optical systems, and are normally used in combination with other lenses.
Oplens equipped Precitech SPDT with Taylor Hobson PGI 3D profilometer. The results of the profilometer measurement system can be directly put into the diamond machine to provide positive compensation values for the machining of aspheric components. At the same time, curvature, surface flatness, roughness and other indicators can be quantified effectively and accurately.
Oplens (brand own by SiChuan JUKA Optical Technology) is located in the city of Chengdu, China, which enjoys the reputation of the world optical processing center. Oplens has been committed to providing customers with high-precision optical system solutions over 16 years, covering the complete manufacturing process from the design, processing and assembly of various optical components and mechanics.
Packaging Details: Optical usage glass BK7 half rod cylinder ar coating plano convex cylindrical lens.
Inner packing:special protective packing for optical products.
Outer packing:carton, Shock absorption material and bubble wrap.
Delivery Time: 7-20days Generally, we use the Fedex, DHL, UPS, TNT, Shunfeng, etc. (Please note it before delivery.) Transit time deponds on the express and destination. By the way, we would re-check all the details before delivery.
Q1:Can you send me free samples or Can i have an sample order ?
A: Yes, We accept sample orders, and we're also willing to send you free sample to test and check its quality . if we don't have the item in stock , then you could place an sample order.
Q2: How many days can i get my package after placing order?
A: If the order needs customized also the quantity is big. it will take around 10-30 wroking days to produce then shipping.
Q3: OEM services available?
A: Sure, please send us your design paper on platform to confirm more details information.
Q4:We have a commercial project,Can you help me offer an optical design solution ?
A:Yes, we have professional experts who are engaged in optical design for many years , please send us more detail of your project,we will supply our most suitable solutions for you.
Q5: What shipping methods do you have?
A: For small quanities or sample could by express such as: Fedex, UPS, DHL, EMS, etc. Large scale quantity in your demands:by sea/train ,or by air.In your requests.
