Premium Customizable Optical Cassette Telescopes for Outdoor Adventures

Product Description

China Factory Customized Design Optical Cassette Telescopes

Technical specification of cassette telescopes
1, Optical indicators
1. Magnification: 4x;
2. Exit pupil diameter: 35mm
3. Main Lenses aperture: 180mm effective aperture;
4. Pupil exit position: 175mm behind the rear end face of the structure;
5. Incident full field of view: 7.5 mrad;
6. Total length: ≤ 130mm (front and rear end faces of the structure);
7. Aluminum alloy lenses:
Surface accuracy RMS < λ/ 15@633nm ;
Reflectivity>95% @ 7-14um (gold plated);
Installation accuracy: wavefront error RMS < λ/ 8@633nm ;
8. Weight ≤ 2kg;
Other optical Lens Design
Tianjin Tengteng Optoelectronic Technology Co., Ltd. was established in 1995, focused on production, research, develop, design and sales of precision optics. 
Our company provide customers from design first to finished products.
Our professional R&D department provide our customers with best service from the beginning to the end at any time, we can provide each customer with full customized solution.

Name	Optical Lens Design
1	SLO Illumination light path of fundus camera
2	Infrared Galileo Telescope
3	Off-axis system design
4	Aspheric design
5	Cassette telescopes design
6	Other optical lens design

Design all kinds of optical components
Inspections

Factory:
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.