a very suitable window covering for a project studio

A window blind of adjustable horizontal slats

a window treatment consisting of a series of horizontal slats that can be turned or raised to control light or privacy

Any horizontal blind. Usually in reference to older style blinds.

A window blind which has numerous horizontal slats that may be set at several different angles in order to vary the amount of light admitted.

The classic design of wooden slats joined by tapes and manipulated by cords, which dates at least as far back as ancient Egypt and has been improved upon slightly in modern times by the development of lightweight aluminum and plastic slats.