Dark field binocular

Abstract

Abstract PURPOSE:To improve dark field availability, to miniaturize and to make the title binocular light in weight by utilizing image intensifier pipes formed so as to permit each internal surfaces of a light input window and a light output window to be vertical to the pipe axial direction, and the outer surfaces to have a certain angle against the internal surfaces and to permit both outer surfaces to be parallel to each other. CONSTITUTION:The dark field binocular is composed of objective lenses 2, the image intensifier pipes 3 and an eyepiece 6. The image intensifier pipes 3 provided internal surfaces B of the light input window 301 and the light input window 304 consist of a fiber plates with a photoelectric surface 302 and a fluorescent surface 303 as the surfaces vertical to the pipe axial direction, and the outer surfaces A are formed so as to have the certain angle theta and to be parallel to each other. Thus, the miniaturized and lightweight binocular which can use large diameter objective lenses is obtained without being limited by the eye width.

Inventors

• 👤 Kazunori Tokushima
• 👤 徳島　和則

Bibliographic Details