Patent ID: 6684029
Filing Date: 2004-01-27
Classification: G03B

Abstract:
A finder optical system comprising:an objective optical system having a positive power; an ocular optical system having a positive power, wherein a light-emitting optical axis of said ocular optical system is parallel with an incident optical axis of said objective optical system, said ocular optical system having a rectangular field of view; a minor direction reflection surface which reflects a light bundle, incident upon said objective optical system, in a substantially minor direction of said rectangular field of view; a first major direction reflection surface which reflects the light bundle, reflected by the minor direction reflection surface, in a substantially major direction, of said rectangular field of view, toward said light-emitting optical axis of said ocular optical system; and a second major direction reflection surface located on said light-emitting optical axis of the ocular optical system to make a connecting optical axis, of the light bundle reflected by said first major direction reflection surface and incident on said second major direction reflection surface, coincident with said light-emitting optical axis of said ocular optical system; wherein said connecting optical axis is inclined with respect to the major direction of the rectangular field of view in a direction in which the incident optical axis of the objective optical system and the light-emitting optical axis of the ocular optical system are close to each other with respect to the minor direction of the rectangular field of view.