All filters from CPG optics are used as standard test plate or in astronomy, we are very proud to tell and provide the fabricating service for the customers.
Materials we already use: optical glass, materials, and even some plastics.
Specifications:
Items | Description | |
D25.4mm Neutral density filter(absorbing) | Material: | Schott N-BK7 |
Diameter: | 25.4+/-0.1mm | |
Thickness: | 6.0+/-0.1mm | |
R1: | infinity | |
R2: | infinity | |
Flatness: | S1&S2:PV<1L@632.8nm | |
Surface quality: | S1&S2:60-40 | |
Clear aperture: | >90% | |
Parallelism: | <3arcmin | |
Chamfer: | 0.1-0.25mmx45deg | |
Coating: | Neutral density filter coating,AOI=0deg | |
OD:0.1+/-5%@1053nm | ||
Standard: | MIL-PRF-13830B | |
D25.4mm Neutral density filter(absorbing) | Material: | Schott N-BK7 |
Diameter: | 25.4+/-0.1mm | |
Thickness: | 6.0+/-0.1mm | |
R1: | infinity | |
R2: | infinity | |
Flatness: | S1&S2:PV<1L@632.8nm | |
Surface quality: | S1&S2:60-40 | |
Clear aperture: | >90% | |
Parallelism: | <3arcmin | |
Chamfer: | 0.1-0.25mmx45deg | |
Coating: | Neutral density filter coating,AOI=0deg | |
OD:0.3+/-5%@1053nm | ||
Standard: | MIL-PRF-13830B | |
D25.4mm Neutral density filter(absorbing) | Material: | Schott N-BK7 |
Diameter: | 25.4+/-0.1mm | |
Thickness: | 6.0+/-0.1mm | |
R1: | infinity | |
R2: | infinity | |
Flatness: | S1&S2:PV<1L@632.8nm | |
Surface quality: | S1&S2:60-40 | |
Clear aperture: | >90% | |
Parallelism: | <3arcmin | |
Chamfer: | 0.1-0.25mmx45deg | |
Coating: | Neutral density filter coating,AOI=0deg | |
OD:0.7+/-5%@1053nm | ||
Standard: | MIL-PRF-13830B | |
D25.4mm Neutral density filter(absorbing) | Material: | Schott N-BK7 |
Diameter: | 25.4+/-0.1mm | |
Thickness: | 6.0+/-0.1mm | |
R1: | infinity | |
R2: | infinity | |
Flatness: | S1&S2:PV<1L@632.8nm | |
Surface quality: | S1&S2:60-40 | |
Clear aperture: | >90% | |
Parallelism: | <3arcmin | |
Chamfer: | 0.1-0.25mmx45deg | |
Coating: | Neutral density filter coating,AOI=0deg | |
OD:1.0+/-5%@1053nm | ||
Standard: | MIL-PRF-13830B |
Inspection:


Applications:
. fluorescence microscopy
. spectroscopy
. clinical chemistry
. machine vision inspection
Other Filters CPG handle:

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.
Packaging& Shipping
Package detail:
Optics are packed with Capacitor paper, white paper, custom-made plastic containers etc
Customized safety green carton
Shipping term:
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.