The invention discloses a high precision hollow
prism reflector, comprising glass plates and a
prism support seat. The high precision hollow
prism reflector is characterized in that the three glass plates are in
adhesive connection with one another by
adhesive bonding so as to form the hollow prism reflector; and after
adhesive connection, the glass plates form the shape of a hollow cone, a first glass plate and a second glass plate are in adhesive connection by photosensitive adhesive, a third glass plate is in adhesive connection with the first and the second glass plates by the photosensitive adhesive, an UV Lamp is used for irradiating and solidifying the photosensitive adhesive, corresponding standard faces on the three glass plates are the inner faces of the three glass plates, and the prism support seat is in adhesive connection with the rear face of the standard face of the third glass plate by an
epoxy resin adhesive. The invention has the advantages of simple structure and convenient use, the device has light weight and high precision, and the
reflectivity of the hollow prism reflector on which film is coated can nearly be higher than 99 percent. The high precision hollow prism reflector is suitable for full-
wave band measurement.