Abstract:
Provided is a temperature sensitive indicator, which can be held in a desired state and is not affected by temperature of a finger at the time of an operation of the temperature sensitive indicator. The temperature sensitive indicator includes: a member base (13) including an upper base member (11) and a lower base member (12); and a label component (21) sandwiched and held between the upper base member and the lower base member of the member base under a state in which a pulled-out portion on one end side of the label component is protruded outward. By pulling one end of the label component out of the member base, a capsule (28) is pressed in a convex portion (16) provided on any one of or both of the upper base member and the lower base member and is broken to enter a preparatory state for measurement, and a temperature sensitive material melts at a predetermined temperature or more so as to be absorbed by an absorbent paper (23), enabling confirmation of a fact that the temperature sensitive indicator senses a set temperature or more through confirmation of color development of the absorbent paper.
Abstract:
An oscillation state of a semiconductor laser is decided. Injection current to the first and second light reflectors of the semiconductor laser are simultaneously swept based on the oscillation state of the semiconductor laser to obtain current conditions of the injection current to the first and second light reflectors that carry out single-mode oscillation in a target wavelength. The semiconductor laser is drive controlled with the obtained current conditions.
Abstract:
A laser output measuring apparatus in which an optical separator is disposed in a position that is rotated by a predetermined angle about an optical axis of a laser beam converged by a lens, and further rotated by a predetermined angle about the optical axis of the laser beam and a straight line perpendicular to an incident surface of the laser beam.
Abstract:
Provided is a temperature sensitive indicator, which can be held in a desired state and is not affected by temperature of a finger at the time of an operation of the temperature sensitive indicator. The temperature sensitive indicator includes: a member base (13) including an upper base member (11) and a lower base member (12); and a label component (21) sandwiched and held between the upper base member and the lower base member of the member base under a state in which a pulled-out portion on one end side of the label component is protruded outward. By pulling one end of the label component out of the member base, a capsule (28) is pressed in a convex portion (16) provided on any one of or both of the upper base member and the lower base member and is broken to enter a preparatory state for measurement, and a temperature sensitive material melts at a predetermined temperature or more so as to be absorbed by an absorbent paper (23), enabling confirmation of a fact that the temperature sensitive indicator senses a set temperature or more through confirmation of color development of the absorbent paper.
Abstract:
There are provided an optical module in which an assembling process of its optical coupling part can be simplified, and a method of assembling the optical module. After a surface light receiving type or a surface light emitting type optical element has been mounted on a substrate, in case of mounting an optical fiber array to the substrate with a spacer or spacers interposed between the substrate and the optical fiber array, the optical fiber array is mounted and fixed to the substrate with the spacer or spacers interposed therebetween while alignment between a plurality of light receiving elements or light emitting elements of the optical element and the end surfaces of a plurality of optical fibers of the optical fiber array is being carried out by image recognition thereof.
Abstract:
The invention relates to an optical computing element for use in an optical computer utilizing computing light rays having a plurality of wavelength components. The optical computing element comprises a photo-chemical hole burning element which functions as a wavelength selecting filter of the computing light rays. Therefore, the optical computer using the photo-chemical hole burning element of the invention can perform arithmetic operations by taking advantage of differences in optical wavelength. The computer can efficiently perform bulky arithmetic processing, and can also speedily perform arithmetic operations through simultaneous parallel processing for information.
Abstract:
The invention relates to an optical computing element for use in an optical computer utilizing computing light rays having a plurality of wavelength components. The optical computing element comprises a photo-chemical hole burning element which functions as a wavelength selecting filter of the computing light rays. Therefore, the optical computer using the photo-chemical hole burning element of the invention can perform arithmetic operations by taking advantage of differences in optical wavelength. The computer can efficiently perform bulky arithmetic processing, and can also speedily perform arithmetic operations through simultaneous parallel processing for information.
Abstract:
A frequency multiple outgoing light is obtained by intensity-modulating a frequency multiple incident light in frequency domain, after irradiating a pump beam to an optical recording medium consisting of photochromic material and the like to generate optical Stark effect thereon and shifting the light absorption spectrum of the optical recording medium by optical Stark effect.
Abstract:
A temperature sensing indicator provided with a capsule having a temperature sensing material contained that can be used without being affected by the temperature of fingers and allows the capsule to be easily broken. The temperature sensing indicator irreversibly indicates that a sensed temperature is not lower than a predetermined temperature or not higher than the predetermined temperature when a capsule containing a temperature sensing material is broken. The temperature sensing indicator has a body base made of a plastic material having a recess section formed therein; the capsule contained in the recess and containing the temperature sensing material, an absorbing member mounted on the upper part of the recess, and in which a through hole that exposes a portion of the upper surface of the absorbing member is formed. Pressing the display label crushes the recess in the body base to break the capsule.
Abstract:
A laser apparatus includes a resonator and an excitation source for gain section excitation. The resonator includes a gain section in which a population inversion is obtained by optical excitation or current injection, non-gain sections in which gain with respect to a laser oscillating light beam is not positive, and two reflection mirrors. The gain section has an optical path length approximately one half that of the resonator and placed centrally with respect to the optical axis of the resonator. The non-gain sections are arranged on opposite sides of the gain section. The two reflection mirrors are arranged further beyond the non-gain sections.