Ø1" Positive Meniscus Lenses Fabricated from N-BK7 Glass
Available Uncoated or with One of Three AR Coatings:
Uncoated: 350 nm to 2.0 µm
A Coated: 350 - 700 nm
B Coated: 650 - 1050 nm
C Coated: 1050 - 1700 nm
Focal Lengths Available from -100.0 to -1000.0 mm
Spherical Surface Power: 3 Fringes
Spherical Surface Irregularity: λ/4
These Positive Meniscus Lenses are fabricated from RoHS-compliant BK7 glass (N-BK7) and are available uncoated or with one of our three broadband antireflection coatings: -A (350-700 nm), -B (650-1050 nm), or -C (1050-1700 nm). These coatings greatly reduce the 4% loss per surface incurred when using an uncoated lens.
Positive meniscus (convex-concave) lenses are designed to minimize spherical aberration. When used in combination with another lens, a positive meniscus lens will shorten the focal length and increase the numerical aperture (NA) of the system without introducing significant spherical aberration. When used to focus a collimated beam, the convex side of the lens should face the source to minimze spherical aberration.
Lens Shape |
Positive Meniscus |
|
Substrate Material |
N-BK7 |
|
Wavelength Ranges |
Uncoated: 350 nm - 2.0 µm |
|
A: 350 - 700 nm |
||
B: 650 - 1050 nm |
||
C: 1050 - 1700 nm |
||
Diameter Tolerance |
+0.00/-0.10 mm |
|
Clear Aperture |
>90% of Diameter |
|
Thickness Tolerance |
±0.1 mm |
|
Focal Length Tolerance |
±1% |
|
Design Wavelength |
587.6 nm |
|
Index of Refraction |
1.515 @ 633 nm |
|
Surface Quality |
40-20 Scratch-Dig |
|
Centration |
||
Damage Thresholdsb |
A: 7.5 J/cm2 (532 nm, 10 ns, 10 Hz, Ø0.504 mm) |
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B: 7.5 J/cm2 (810 nm, 10 ns, 10 Hz, Ø0.144 mm) |
||
C: 7.5 J/cm2 (1542 nm, 10 ns, 10 Hz, Ø0.123 mm) |
What's the way of shipping?
We accept DHL, Fedex, TNT, UPS, SF, EMS etc. If you have your own express account, it's great.
How to pay?
We usually draft Trade Assurance Order on Alibaba, you can pay by the most convenient way which also protect most of your rights.
What's the deliver time?
For inventory: the delivery time is around 5 workdays.
Customized products: the delivery time is 10 to 30 workdays. According to the quantity and precision.
How to ensure the safety of payment?
Our company is the gold supplier and supports Alibaba Trade Assurance. Payment5000USD, 50% T/T in advance, balance before shippment.
Can I customize the products based on my need?
Yes, we can customize the material, specifications and optical coating for your optical components based on your needs. OEM is available.
Brand: NOAIDA
The NOAIDA Factory Custom Bk7 K9 Optical Glass Positive Negative Meniscus Lens is truly a built item to offer performance this is certainly high-quality optical. This lens is made of premium quality materials that ensure usage this is certainly lasting, razor-sharp images.
This Factory Custom Bk7 K9 Optical Glass Positive Negative Meniscus Lens is very beneficial in applications that need the modification of spherical aberration. The lens has two surfaces being curved one that's convex and another which is concave. The convex surface causes light to converge due to the fact the concave surface causes it to diverge.
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The NOAIDA Factory Custom Bk7 K9 Optical Glass Positive Negative Meniscus Lens is an option this is certainly very good are looking for a top-quality lens that is optical could deliver reliable and accurate results. It really is made from premium materials, it absolutely was designed to correct aberrations, plus it is customizable to fulfill your requirements that are exact. Plus, it carries the trusted NOAIDA high end name, and therefore could be just like quality and gratification.
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