Patent ID: 8886029
Filing Date: 2014-11-11
Classification: G03B,H04N,Y10T

Abstract:
1. A 3-D image pickup apparatus comprising: a lens portion that includes a lens system; and an adjustment ring portion that includes plural coaxially rotatable rings, each adjusting a respective one of plural optical parameters of the lens system, wherein the adjustment ring portion includes three rings: an outermost ring positioned on an outermost circumferential side of the adjustment ring portion, a middle ring positioned at an inner side of the outermost ring, and an innermost ring positioned at an inner side of the middle ring; wherein a respective one of the three rings are set to adjust zoom, focus, and convergence of the lens system; wherein the outermost ring has a first protruding portion protruding from a surface of the 3-D image pickup apparatus, and the middle ring has a second protruding portion protruding from the outermost ring in an axial direction; wherein a first and a second slip prevention portion are formed on a circumferential surface of the first protruding portion and the second protruding portion, respectively; and wherein a tip end position of the innermost ring is positioned substantially co-planar with a tip end position of the middle ring, wherein the tip end position of the innermost ring has a concave portion having a concave dome shape, and wherein a slip prevention portion is formed on an inner circumferential surface of the concave portion.