| 摘要 |
PROBLEM TO BE SOLVED: To provide a small real image type variable power finder. SOLUTION: In a real image type variable power finder having, in order from the object side, an objective lens systems L1, L2, L3, L4 having positive refractive powers and a variable focal distances, a visual field frame S arranged in the vicinity of the image forming plane of the objective lens system and eyepiece lenses L5, L6 having a positive refractive powers and arranged so as to observe the image by the objective lens system and the visual field frame S, bending optical axes (a), (b) by interposing a first reflection means A in the objective lens system or between the objective lens systems and the visual field frame, interposing a second reflection means B between the visual field frame and the eyepiece lens, bending the optical axis (c) on the exit side of the second reflection means so as to be parallel with the optical axis on the entrance side of the first reflection means and erecting the observing image by the first and the second reflection means; by assuming an angle between the optical axis (a) on the entrance side and the optical axis (b) on the exit side isθ,θis formed to becomeθ<90 deg..
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