Abstract: A microscope apparatus includes a base, a support disposed upright on the base, and an objective lens unit supported by the support and including an objective lens holder that holds an objective lens. The objective lens unit includes a drive source that moves the objective lens holder up and down and a driver that transmits a drive force of the drive source to the objective lens holder.

Abstract: A microscope apparatus includes a base, a support disposed upright on the base, and an objective lens unit supported by the support and including an objective lens holder that holds an objective lens. The objective lens unit includes a drive source that moves the objective lens holder up and down and a driver that transmits a drive force of the drive source to the objective lens holder.

Abstract: An organic-inorganic hybrid forming composition, which is capable of forming an organic-inorganic hybrid with less yellow coloring than conventional ones, while maintaining the surface hardness. The organic-inorganic hybrid forming composition includes: a) a condensate of an organosilicon compound represented by the formula (I): RnSiX4-n (I) (where R represents an organic group having a carbon atom directly bonded to Si in the formula; X each independently represents a hydroxyl group or a hydrolyzable group; and n represents 1 or 2, and when n is 2, each R is the same or different), which is obtained by condensing the organosilicon compound represented by the formula (I) in the presence of a zirconium complex; b) an electromagnetic ray-curable compound; and c) a photopolymerization initiator.

Abstract: A microscope includes a body unit that constitutes a microscope body and a plurality of units that are attached to the body unit. The plurality of units are electrically connected to a ground line. In this microscope, at least two of the units are imparted with conducting properties with conducting abilities different from each other.

Abstract: An electrically-driven coarse and fine movement apparatus comprises a movable member, a driving device for driving the movable member, a first operation handle, a first rotary shaft fixed to the first operation handle, a second operation handle, disposed coaxially with the first operation handle, for rotating the first rotary shaft, a rotation restricting member for restricting a rotation of the second operation handle, which is accompanied with the rotation of the first operation handle, a rotation detector for detecting a rotational quantity and a rotational direction of the first rotary shaft, a discriminating device, linked to the second operation handle, for judging whether the second operation handle is operated or not to output a judging signal, and a controlling circuit for controlling the driving device so as to provide the movable member with a coarse movement in accordance with an operation of one operation handle of the first and second operation handles and to provide the movable member with a fi