The deviation angle of 90° is thus independent of the orientation of the prism, making it especially important in applications in which the prism orientation cannot be precisely controlled. Due to geometry that total internal reflection cannot be used, the reflecting surfaces must be coated with a metallic or dielectric coating. The standard Penta Prism reflecting surfaces are coated with aluminum or enhanced aluminum. Sometimes, the coated surfaces are with black painting.  

 From 2006 to 2016 ,we have been in optics field for 10 years .We have one professional workteam proviode service for you 

 Package : we will choose the suitable package base the product's size and quantity or as the customer's request 

Shippment : We will choose the most affordable shippment for you base the product's size and weight 

Q1: Are you a factory or trading company ? 

A: We are a factory.We have been in optics field for 10 years

Q2: Where is your factory located ? How can i visit there ? 

A:It is located in North-South 1st Road ,xiangguang Economic Development Zone,Yanggu county,Shandong Province,China

Welcome to visit our factory anytime

Q3: Can I customize the products based on my need?

A: Yes, we can customize the material, specifications and optical coating for your optical components based on your needs.

Q4: What's your MOQ?

A:   

(1)  For inventory, the MOQ is 1pcs.
(2)  For customized products, the MOQ is 10pcs-20pcs.

Q5: Can i get the sample to test before the mass production ?

Sure ,we would like to offer the sample for you to test our quality before large order

Q6: How to pay?

A:   T/T, Paypal, Western Union, Secure payment, Credit card and Assurance payment on Alibaba and etc..

Q7: What's the delivery time?

A: 

 For inventory: the delivery is 2 workdays after you place the order.
 For customized products: the delivery is 2 or 4 workweeks after you place the order.