My laundry room also has this strange window, that opens with little slats of glass that open between the laundry room and my quilting room. So I can see into the laundry room, from my quilting room.
And I can see into my quilting room from the laundry room.
It is the strangest place to have a window, but this is how it was when we bought the house. Both of these rooms are in the basement of the house and down at the north side of the house where the garden outside is mostly big cedar trees.
My sewing room is quite small with no outside light coming in so having the window is actually quite nice. If I didn't have the window I would probably feel quite closed in when I was sewing. I usually turn the light on in the laundry room when I am sewing.