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BK7 Polish Anti-Reflection Optical Plano Convex/Concave Aspherical Lenses
| Price | Negotiable |
|---|---|
| Min Order | 5 Pieces |
| Availability | In Stock |
| Shipping From | Jiangsu, China |
| Popularity | 428 people viewed |
Model NO.:
Aspherical lens
After-sales Service:
Repair for free for any quality problem
Warranty:
1 year
Usage:
Lighting, Medical, Optical, Photography, Astronomy
Type:
Concave Lens
Transmittance:
>95%
Shape:
round
Material:
Optical Glass
Lenses Color:
Clear
Certification:
RoHS, ISO9001, CE, TUV
Customized:
Customized
Coating:
Coated/Uncoated
Trademark:
CPG
Transport Package:
Carton, Blister, Customed
Specification:
as required
Origin:
China
HS Code:
9001909090
Product Description
The plano concave lens is used to diverge the parallel light outward. The focal length of the flat concave lens is negative and the spherical aberration is also negative. It can be used to correct the phase difference, spherical aberration, coma and distortion of other lenses. Similar to the flat concave mirror, the side is generally opposite to the far object surface or infinity.
K9 plano concave spherical lens can see the transmittance of near infrared (350-2000nm).
H-K9L (N-BK7) is an optical glass commonly used in the preparation of optical elements.
These uncoated plano concave lenses are prepared using H-K9L (N-BK7) conforming to ROHS standard. The collimated beam can converge on the rear focus, or the point light source can be changed into a collimated beam.
| Items | Parameters |
| Material | optical glass, H-K9L (N-BK7) |
| Outer circle: | 3mm-500mm ± 0.1mm |
| Radius of curvature: | ± 1mm - ± 50000mm ± 1% |
| Center thickness tolerance: | ± 0.05mm (we can process to ± 0.01mm with high precision) |
| Center deviation: | 3′(we can process to 30 ″with high precision) |
| Surface accuracy: | λ/ 8 (high precision, we can process to 1 / 10λ) |
| Surface quality: | 60/40 (we can process to 10-5 with high precision) |
| Effective caliber: | ≥90% |
| Coating: | Maultilayer Antireflective Coating A:400-700nm B:650-1050nm C:1000-1650nm |
FAQ:
1. Are you a manufacturer or trader? Can I visit your factory or office?
We are a manufacturer. We have factories in Jiangsu and Zhejiang provinces.
In order to provide better and in-time services, we set up branches in US, Germany and Netherlands.
You are welcome to visit our factories and offices at any time.
2. What's your payment term?
T/T, D/P, Letter of Credit, Western Union etc.
3. What's your minimum order quantity for this item?
1 unit.
4. Could I get free samples before making an order?
Your samples fee will be refunded when you place volume order.
5. Can I get a catalog?
Of course, please contact our salesman to get a catalog.
6. What's the lead time?
15-30 days, it is up to your quantity and specification and our stock.
If in stocks, once you make the payment, your products will be sent within 2 days.
7. What's your price list and discount?
The above price is our reference price, if you would like to know more our exact and discount policy, please email us or call us directly.
8. Can you OEM or ODM?
Yes, we accept all OEM and ODM.
9. Do you give a warranty of your products?
Yes, if there is a quality problem, please kindly provide the pictures to show the problem by email.
We will rework or provide the replacements to you at our cost according to actual conditions.
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