What is a cookie?

A cookie is a small data file stored on your computer or other IT equipment you may use when visiting a website. The cookie makes it possible to recognize your computer and collect information about the pages and functions on the web pages visited by your browser. Cookies cannot see who you are, what your name is, where you live, or if your computer is used by one or more persons. Nor can it spread computer viruses or other harmful programmes.

Cookies are used by the majority of all websites. In some cases, cookies are needed in order for the website to function properly.

Cookies used for statistics

This website uses cookies. When visiting our website, you accept our usage of cookies. A cookie is placed on the computer when visiting one of Delta Optical Thin Film’s websites.

We use the statistical tool Google Analytics to monitor visitors’ use of our web pages. We use the information generate by the cookies to evaluate your use of the website and generate reports on website activity.

Moreover, we use web system cookies to cache your activity on the website, so that web elements such as pictures are uploaded faster on your computer next time you visit the webpage.

How to reject cookies?

You can always reject cookies on your computer by changing the settings in your browser. Where you find the settings depends on which browser you use. Please note that without cookies certain features and services on the website might not work properly because they presuppose that the website can remember the choices you make.

We hope you will allow our cookies, as they help us improve the web pages and make your experience of our website even better.

How to delete cookies?

You can always delete cookies either individually or altogether. How you do that depends on which browser you use. Click on the below links to find a full instruction for your particular browser. Remember, if you used more than one browser, you must delete cookies for each browser.

Internet Explorer

Google Chrome

Mozilla Firefox


Safari 5.0

Flash cookies (alle browsers)

iPhone, iPad og iPod

Android smartphones

Windows 7 smartphones


If you have any queries or comments in connection with our use of cookies or need further information about our handling of personal data, please contact us by email on