| Customization: | Available |
|---|---|
| Usage: | Lighting, Medical, Optical, Photography, Astronomy |
| Type: | Concave Lens |
|
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| Items | Description | |
| Plano concave lens | Material: | Schott N-BK7 |
| Diameter: | 25.4+0/-0.6mm | |
| Edge thickness: | 4.5+/-0.1mm | |
| Focal length: | 250mm+/-1%@587.6nm | |
| ROC1: | 129.2mm,CC | |
| ROC2: | infinity | |
| Flatness: | S1&S2:IRR<1/[email protected] | |
| S1&S2:TWD<1/[email protected] | ||
| Surface quality: | S1&S2:40-20 | |
| Centerness: | <3arcmin | |
| Clear aperture: | >90% | |
| Chamfer: | <0.25mmx45deg | |
| Coating: | S1&S2:AR coating,R<0.3%@1064nm,AOI=0deg | |
| Standard: | MIL-PRF-13830B | |
Certificates:
FAQ:
1. What's your payment term?
T/T, Letter of Credit, Paypal, Western Union, etc.
2. What's your minimum order quantity?
1 unit.
3. Could you send free samples?
Your samples fee will be returned when you plack bulk order.
4.What's the delivery time?
15-30 days, it is up to your quantity and soecification and our stock. If in stocks, once you make the payment, your products will be sent within 2 days.
5. 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 contact us directly
6.Can you OEM or ODM?
Yes, we accept all OEM and ODM.
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