Abstract: An apparatus maintaining adjusted positions of parts assembled by adhering includes a device coating plural sections between a part and an adhering target with light energy curable adhesives adhering the part to the adhering target, a light energy irradiating device for curing the adhesive, and a detecting device detecting a displacement of the part from the adhering target. A curing shrinkage force control device is also provided to control the light energy irradiating device to change the light and thus control curing shrinkage forces to offset undesirable stresses generated by the curing shrinkage forces when undesirable displacement is detected.

Abstract: A polarization control device includes a support substrate on which a metal compound structure is formed. The metal compound structure is formed with at least two metal fine structures arranged periodically in a range equal to or smaller than a wavelength of an incident light.

Abstract: An optical detection device image is disclosed that allows fast measurements using near-field light at high resolution and high efficiency but without necessity of position alignment of an optical fiber probe. The optical detection device includes an optical fiber probe having a core for propagating light with an optical probe being formed at a front end of the core; a movement control unit to move the optical fiber probe to approach or depart from a sample; and a detection unit to detect light from the sample surface, wherein on the front end surface of the core of the optical probe, there are a first exit section on a peripheral side for emitting propagating light and a second exit section for seeping out the near-field light, the first exit section and the second exit section are formed in a concentric manner, and the tilt angle of the first exit section is different from the tilt angle of the second exit section.

Abstract: An optical detection device image is disclosed that allows fast measurements using near-field light at high resolution and high efficiency but without necessity of position alignment of an optical fiber probe. The optical detection device includes an optical fiber probe having a core for propagating light with an optical probe being formed at a front end of the core; a movement control unit to move the optical fiber probe to approach or depart from a sample; and a detection unit to detect light from the sample surface, wherein on the front end surface of the core of the optical probe, there are a first exit section on a peripheral side for emitting propagating light and a second exit section for seeping out the near-field light, the first exit section and the second exit section are formed in a concentric manner, and the tilt angle of the first exit section is different from the tilt angle of the second exit section.

Abstract: An optical fiber probe is disclosed that comprises an optical fiber and an optical probe. The optical fiber includes a core though which light emitted from a light source travels. The optical probe is configured to emit the light from a projecting end portion of the core. An inclination angle of a normal line of a part or all of a surface of the optical probe with respect to an optical axis of propagating light that travels through the core is smaller than a total reflection angle of the propagation light but greater than zero degrees.

Abstract: A polarization control device includes a support substrate on which a metal compound structure is formed. The metal compound structure is formed with at least two metal fine structures arranged periodically in a range equal to or smaller than a wavelength of an incident light.

Abstract: An optical fiber probe is disclosed that comprises an optical fiber and an optical probe. The optical fiber includes a core though which light emitted from a light source travels. The optical probe is configured to emit the light from a projecting end portion of the core. An inclination angle of a normal line of a part or all of a surface of the optical probe with respect to an optical axis of propagating light that travels through the core is smaller than a total reflection angle of the propagation light but greater than zero degrees.

Abstract: An apparatus maintaining adjusted positions of parts assembled by adhering includes a device coating plural sections between a part and an adhering target with light energy curable adhesives adhering the part to the adhering target, a light energy irradiating device for curing the adhesive, and a detecting device detecting a displacement of the part from the adhering target. A curing shrinkage force control device is also provided to control the light energy irradiating device to change the light and thus control curing shrinkage forces to offset undesirable stresses generated by the curing shrinkage forces when undesirable displacement is detected.

Abstract: A device for assembling and adjusting an optical unit of the present invention includes an adjusting device including a collimator lens, an object lens, a disk, and a signal sensing system. A light beam output from the optical unit is incident to the collimator lens. Parallel rays output from the collimator lens are incident to the object leans. Further, a spot converged by the object lens is incident to the disk. The signal sensing system receives a light beam reflected by the disk via the object lens to thereby determine a distance between the object lens and the disk and a positional relation between the spot on the disk and the groove of the disk. The device allows the position of a light emitting element to be accurately determined and therefore allows the angular deviation of the intensity distribution of the light emitting element from a designed value to be easily grasped.