You're probably right. https://imgur.com/9OBN31C https://imgur.com/9OBN31C At first I thought it was a dimpled magnet. Now it looks more like a lens covering

You're probably right. https://imgur.com/9OBN31C https://imgur.com/9OBN31C At first I thought it was a dimpled magnet. Now it looks more like a lens covering a projector and another covering the receiver.