Abstract:
A shape measurement apparatus includes: a holder for holding a measuring object having a spherical measurement surface; a sensor configured to emit light onto the measurement surface to perform non-contact measurement of a distance between the sensor and the measurement surface and output a measured value; a rotation mechanism for rotating the sensor around a first axis; a sensor movement mechanism for moving the sensor along a second axis orthogonal to the first axis so as to be movable across an intersection of the second axis with the first axis; a holder movement mechanism for moving the holder along a vertical direction and on a plane orthogonal to vertical direction; and a control device configured to: calculate the shape of the measurement surface based on the measured value; calculate a spherical center of the measurement surface; and cause the holder movement mechanism to match the spherical center with the intersection.
Abstract:
An method for producing an optical assembly includes a first assembling step of assembling lenses from a first lens to an (n−1)-th lens (where n is an integer of 1
Abstract:
A wavelength converting unit includes: an incident portion configured to be connected to an excited-light emitting end of a excited-light source, and on which excited light emitted from the excited-light source is made incident; a wavelength converting member configured to convert the excited light into wavelength-converted light of a desired wavelength; a light transmitting member configured to transmit the excited light and the wavelength-converted light; a reflector configured to reflect at least part of the wavelength-converted light; and an emitting portion configured to emit at least part of the at least part of the wavelength-converted light reflected by the reflector to outside. At least part of the light transmitting member is continuously formed to extend from the incident portion to the emitting portion, and part of an external surface of the light transmitting member has the reflector.
Abstract:
A method for manufacturing an optical element, the method including: heating an optical element material by suspending it in a gas; supplying the heated optical element material from a direction which intersects a central axis interconnecting centers of a first mold and a second mold to a space between molds in a non-contact state, the space between molds being a space between the first mold and the second mold; pressurizing the optical element material supplied to the space between molds by the first mold and the second mold; and cooling the pressurized optical element material.
Abstract:
A method for manufacturing an optical element, the method including: heating an optical element material by suspending it in a gas; supplying the heated optical element material from a direction which intersects a central axis interconnecting centers of a first mold and a second mold to a space between molds in a non-contact state, the space between molds being a space between the first mold and the second mold; pressurizing the optical element material supplied to the space between molds by the first mold and the second mold; and cooling the pressurized optical element material.
Abstract:
The present invention provides an optical element manufacturing method including a first step of fixing an optical material by exerting a first weight different from a self weight of an upper die on the optical material positioned in a cavity between the upper die and a lower die, a second step of thereafter heating and softening the optical material by introducing a heated gas to an inside of the cavity, and a third step of thereafter molding an optical element by exerting a second weight larger than the first weight on the optical material within the cavity.
Abstract:
A method includes: a main body processing step of forming a lens main body having the concave lens surface; a molding step of coating a molding resin on the concave lens surface, pressing a microstructure forming mold, having a molding surface portion transferring the reflection preventing part formed on the surface of a deformable base body part thereof, against the concave lens surface, and curing the molding resin; and a mold release step of exerting a moment of a force relating to the surface top of the molding surface portion so as to deform the base body part to gradually separate the microstructure forming mold from an outer peripheral side thereof in a direction in which the concavo-convex shape of the reflection preventing part extends, thereby performing mold release.
Abstract:
An method for producing an optical assembly includes a first assembling step of assembling lenses from a first lens to an (n−1)-th lens (where n is an integer of 1