Abstract: A measurement apparatus is attached to a guide rail above a car. Next, a measurement by the measurement apparatus is performed, and first dimensional data including dimensional data on an upper part of a shaft is acquired. The measurement apparatus is detached from the guide rail, and the car is moved upward and then stopped. The measurement apparatus is attached to the guide rail below the car after the car is stopped. A measurement by the measurement apparatus is performed, and second dimensional data including dimensional data on a lower part of the shaft is acquired. The acquired first dimensional data and the acquired second dimensional data are integrated, and dimensional data on the entire shaft is created.

Abstract: A measurement apparatus is attached to a guide rail above a car. Next, a measurement by the measurement apparatus is performed, and first dimensional data including dimensional data on an upper part of a shaft is acquired. The measurement apparatus is detached from the guide rail, and the car is moved upward and then stopped. The measurement apparatus is attached to the guide rail below the car after the car is stopped. A measurement by the measurement apparatus is performed, and second dimensional data including dimensional data on a lower part of the shaft is acquired. The acquired first dimensional data and the acquired second dimensional data are integrated, and dimensional data on the entire shaft is created.

Abstract: A contact lens for intraocular observation including a lens body having a contact face to be brought into contact with cornea of an eyeball of a subject, and a lens support having a contact portion to be settled on sclera of the eyeball of the subject, the lens body and the lens support being assembled on each other by means of a slide mechanism so as to be movable relative to each other in the axial direction of lens, wherein the lens body is capable of pressing the cornea of the eyeball of the subject by movement thereof in the axial direction of lens relative to the lens support settled on the sclera of the eyeball of the subject. The contact lens of the present invention is of good operability and adapted to effectively prevent slipping of itself on the cornea of an eyeball.

Abstract: A contact lens for intraocular observation capable of optically recognizing an inner portion of an eyeball by contacting the contact lens on a surface of a cornea of an eye to be inspected through a light ray transmitted through an inner portion of the contact lens comprising: an optical path dividing member provided on an optical path for leading a light ray incident on the inner portion of the contact lens to the eye to be inspected for dividing a portion of the light ray on said optical path; and an index provided at a position approximately optically conjugate with a portion to be observed of the eye to be inspected on a divided optical path divided by the optical path dividing member. The portion to be observed and said index can optically be recognized by at least partially superposing a first image of the index on a second image of the portion to be observed.

Abstract: An apparatus for measuring a refracting power of an optical system which comprises: a beam projecting optical system which projects a predetermined moving luminous flux to an optical system to be inspected; a beam condensing optical system in which a photoelectric conversion element receives a luminous flux transmitted through the optical system to be inspected; and a processing system which obtains the refracting power of the optical system to be inspected, based on an output from the beam condensing optical system; wherein a rotating plate having at least one tooth of a converging shape, which is protruded outwardly from a center of the rotating plate, is disposed in a beam path of the beam projecting system; and a luminous flux, both edges, in a moving direction thereof, of which are inclined to the moving direction with angles being different with each other and correspond to both sides of the tooth, irradiates the optical system to be inspected, by intermittently blocking the beam path by the tooth.