Types of window blinds

Presently there are only a few types of blinds are available in the market, they are, Roller Blinds, Venetian Blinds, Vertical Bamboo Blinds, Roll Up and Woven Blinds, Bamboo Blinds and Roman Blinds. At the same time, it is possible to create many blinds for windows. Why they are not created more is a question, if they are created already why they are not available to buy and install in the windows are the second question rising in the mind to people, if you think very deeply about the purpose of the blinds, it is easy to understand that the blinds are made to darkening the windows covering the sunlight coming from window, in many cases, the blinds are not covering the sunlight and partially only they are covering the sunlight that is the reason the above blinds are only made by the blinds manufacturing companies.