Lens layout block device

A lens layout blocker characterized by comprising a holder holding unit for holding a lens holder at a holder mounting position, conveying the lens holder to a seal adhering position, causing an elastic seal to be adhered to the lens holder at the seal adhering position and conveying the lens holder to a lens holding position, and causing a lens to be held by the elastic seal at the lens holding position, said holder holding unit comprising a pivotal arm, an arm driving unit for pivoting said pivotal arm within a horizontal plane, a clamp unit for holding the lens holder attached to said pivotal arm to be vertically movable, and a clamp driving unit for vertically moving said clamp unit.

A lens holder formed of a cylindrical member and having a lens holding surface formed of a concave spherical surface at a distal end thereof to hold a plurality of types of lenses with convex lens surfaces of different curvatures by an elastic seal adhered to the lens holding surface, characterized in that the plurality of types of lenses are classified into a plurality of types of lens groups in which lenses with convex lens surfaces of similar curvatures form one group, and the lens holder comprises a plurality of types of lens holders corresponding to the lens groups, each of respective types of the lens holders serving to hold a lens belonging to a corresponding lens group with an edge of a lens holding surface thereof.

A lens holder formed of a cylindrical member and having a lens holding surface formed of a concave spherical surface at a distal end thereof to hold a plurality of types of lenses with convex lens surfaces of different curvatures by an elastic seal adhered to the lens holding surface, characterized in that the plurality of types of lenses are classified into a plurality of lens groups in which lenses with convex lens surfaces of similar curvatures form one group, and the lens holder comprises a plurality of types of lens holders corresponding to the lens groups, each of respective types of the lens holders having a lens holding surface a lens holding surface with a radius of curvature equal to or smaller than a minimum radius of curvature of a convex lens surface of a lens belonging to a corresponding lens group.

A lens layout blocker for urging, at a seal adhering position, a lens holding surface of a lens holder against an elastic seal, thus adhering the elastic seal to the lens holding surface, and urging, at a blocking position, the elastic seal, adhered to the lens holding surface of the holder, against a lens, thus adhering the lens to the elastic seal, characterized by having a unit for urging the elastic seal, adhered to the lens holding surface to the lens holder, against the lens with an urging force smaller than that with which the lens holding surface of the lens holder is urged against the elastic seal.