Dual visual field lens barrel for combination head observation

Abstract

Abstract PURPOSE:To improve the precision of angle indexing by splitting light of an image passed through an objective lens into two by a beam splitter and constituting a small-power and a large-power side. CONSTITUTION:The beam splitter 25 splits the image of the image passed through the objective lens into two. A reflection mirror 26 reflects light reflected by the splitter 25 at right angles further at right angles and is horizontally movable. An image forming lens 28 is installed in front of or behind the image forming position of an image by the objecting lens behind the beam large-power and a small-power part and a subject is observed partially large with a visual field. The mirror 26 is moved horizontally to observe an optional position in the visual field of the objective lens.

Inventors

• 👤 Keinosuke Kanejima
• 👤 敬之介 金島

Bibliographic Details