Optical Coated Negative Meniscus Positive Meniscus Cemented Lens for Telescope

• Usage: Lighting, Medical, Optical, Photography
• Type: Achromatic Lenses
• Transmittance: >95%
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: TT Lens 276
• Shape: Achromatic Lenses
• Material: Optical Glass
• Lenses Color: Clear
• Certification: ISO9001
• Customized: Customized
• Coating: HC
• Min: 1 Unit
• Payment Term: L/C, T/T, D/P, Western Union, Paypal, Money Gram
• Thickness: as Required
• Surface Quality: 40-20
• Focal Length Tolerance: +/-1%
• Focal Length Specification Wavelength: 587.6mm
• Wavelength Range: 500 - 1100
• Center Thickness Tolerance: +/-0.1
• Centering: <1aremin
• Power (P-V): 1.5lambda@633nm
• Irregularity (P-V): Lambda/4@633nm
• Bevel: Protective Bevel as Needed
• Transport Package: Carton, Blister, Customized
• Specification: As required
• Trademark: TT
• Origin: Tianjin
• HS Code: 9001909090
• Production Capacity: 2000pieces/Month
• Package Size: 10.00cm * 25.00cm * 18.00cm
• Package Gross Weight: 1.000kg

Product Description

Optical Coated Negative Meniscus Positive Meniscus Cemented Lens for Telescope
The achromatic lens is glue by two elements together or install two elements in a shell. Compared with single lens, achromatic lens can form smaller light spots, which can be used to minimize or elimi..

Achromatic lens specification or based on clients' requirements

1.Material	Domestic or foreign materials are selected based on clients' requests
2.Diameter tolerance	0/-0.03mm
3.Clear aperture	90%-100%
4.Tolerance of CT or ET	±0.05mm
5.ector Tolerance	±0.015mm
6.Aperture Tolerance	±0.02mm
7.Surface Quality	US Standard 10-5,ISO Standard 3X0.063
8.Curvature Tolerance	±1.5
9.Surface Flatness	/6@633nm
10.Centration	1 arc minute
11.Focal Length	±1%
12.Edge Chip	<0.1mm
13.Bevel	Based on clients' requests
14.Coating	Apply AR or based on client requests

Inspections

Application field

Factory:
Tianjin Tengteng Optoelectronic Technology Co., Ltd. was established in 1995, focused on production, research and sales of precision optics. We have professional engineers to research and develop, and design all kinds of lens.


Other Lenses Handle

Optical lens design
Lens assembly and debugging


Packaging& Shipping
Package detail:
Inside Packing: Special protective packing for optical products
Outside Packing: Carton
Packing can be made according to customer's need


Payment Term:
T/T,Western Union,Paypal,L/C

Customer Question & Answer
1. Are you a manufacturer or trader? Can I visit your factory or office? How to see your factory on line?
We are a manufacturer in Tianjin, China.You are welcome to visit our factories and offices at any time.We have a video to show you our factory in detail.

2.What's your minimum order quantity?
1 unit.

3.What's your payment term?
T/T,Letter of Credit, Western Union etc.

4.Could I get free samples before making an order?
Your samples fee will be refunded when you place a large order.

5.Do you have professional person to design according to my requirement?
Of course, we have R&D department to work with you and provide you the best service until you will be satisfactory.

6. What's the lead time?
It is up to your quantity and specification and our stock.
Your products will be sent within 2 days once you make payment for the stock products.

7. Do you have enough stock?
Sure. We have enough stock because our factory is in this area for over 20 years.You can contact our salesperson to get stock at any time.

8. Can you accept 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, you can contact us by email or skype or whatsapp, we can give you the solution in time. We will rework or provide the replacements to you at our cost according to actual conditions.