That works two ways.
Hpw do roof prisms work.
Roof edge is a reflective optical prism containing a section where two faces meet at a 90 angle.
Roof prism binoculars have two straight tubes making them smaller and more compact.
A beam of light goes in a straight line from an objective lens into an eyepiece and this fact allows to create compact binoculars.
They work by sending the light captured by your objective lens through a pair of prisms in a quick horizontal movement.
These two 90 faces resemble the roof of a building giving this prism type its name.
When a light beam enters a schmid pechan s prism it enters the first prism vertically and is reflected at the inner face near the air gap and reflected again on the underside of the prism after which it exits the prism via the air gap and vertically enters the second prism.
Roof prism is a reflective optical prism containing a section where two faces meet at a 90 degree angle.
These two faces of this prism form a roof like structure that s why the name roof prism is given to this prism shape.
There are two prisms in a roof prism assembled binoculars.
The movement between prisms acts as an amplifier and inverter to send a magnified and orientation corrected image of your target through the ocular lenses.
The set two 90 faces resemble the roof of a building hence giving it that name.
The prisms angle from the eyepieces to the objective lenses.
A roof prism also called a dach prism or dachkanten prism from the german.