摘要:
An optical pickup head apparatus comprises a hologram element disposed in the flux of light reflected back from an optical disc, and first and second photodetectors respectively having linear element boundaries extending in a predetermined direction and disposed so as to receive two-focal-point images on their coplanar detection surfaces, whereby the tolerable width of variation in the light source wavelength and the tolerable range of error in the assembling adjustment of the optics can be extended considerably to permit stable differential signal detection.
摘要:
Disclosed is a method and apparatus for measurement of surface topography of a sample by using a scanning electron microscope, in which: secondary electrons released from the sample are detected by detectors which are four or an integral multiple of four in number and which are disposed above the sample to surround the sample; differential coefficients in two directions perpendicularly intersecting each other at the scanning point are obtained from the detected signals; the differential coefficients are successively summing-integrated along the two directions thereby obtaining surface topography of the sample; and at the same time the calculation expression for calculating the surface topography is corrected with the sample table inclined.
摘要:
A manual wiper comprises an elastic base detachably wound around a finger and a wiper blade which is provided on the base in such a manner as to traverse the same and whose position is adjustable. The wiper is adapted to be attached to a finger so as to remove waterdrops if one hand with the wiper blade attached to one finger is used to rub the window plate to which waterdrops have adhered.
摘要:
Method of determining stereoscopic geometry of an object through photometric stereoscopic measurement with high accuracy. Three or more images of the object picked up in a same fixed direction by varying the state of light sources are derived. Relationships among the images are corrected so that an evaluation function determined by making use of redundancy of the images assumes a minimum value, to thereby prepare a reflectance map to be used in determining orientations of surface elements of the object. Through integration of the orientations, the surface shape of the object is determined. The method is applicable to the image processing in a scanning electron microscope.
摘要:
The input setting type programming relay is provided with a plurality of input terminals for receiving a binary signal, a memory device connected to the input terminals and presettable with signals 1 and 0 corresponding to respective digits of the binary signal and an AND gate circuit connected to the output of the memory device for producing an ON or OFF signal when the signals set in the memory device coincide with the data of respective digits of the input signal.
摘要:
To provide a method of controlling a turbine equipment and a turbine equipment capable of carrying out a starting operation of controlling a load applied to a speed reducing portion while complying with a restriction imposed on an apparatus provided at a turbine equipment. The invention is characterized in including a temperature elevating step (S1) of elevating a temperature of a working fluid flowing to the turbine portion, a flow rate increasing step (S2) of increasing a flow rate of a working fluid bypassed from a delivery side to a suction side of the compressing portion when a temperature of the working fluid flowing to the turbine portion is elevated by a heat source portion, and a flow rate reducing step (S3) of reducing the flow rate of the bypassing working fluid after an elapse of a predetermined time period after increasing the flow rate of the bypassing working fluid.
摘要:
An ultrasonic diagnostic apparatus includes a structure for adjusting the positional relationship between an ultrasonic transducer and a blood vessel for measuring an elasticity characteristic. The apparatus includes an ultrasonic probe including a transducer for transmitting an ultrasonic wave and receiving the ultrasonic wave reflected by a tissue of a biological body; and a driving device for physically moving the transducer. For measuring the elasticity characteristic of the blood vessel, the driving device moves the transducer based on a control signal to change at least one of a direction and a position at which the ultrasonic wave is to be transmitted. A determination section specifies a position of the transducer at which the reflection intensity is maximum based on intensity information representing an intensity of the reflected wave. A calculation section calculates the elasticity characteristic of the blood vessel at the specified position.
摘要:
After forming domain inverted layers 3 in an LiTaO3 substrate 1, an optical waveguide is formed. By performing low-temperature annealing for the optical wavelength conversion element thus formed, a stable proton exchange layer 8 is formed, where an increase in refractive index generated during high-temperature annealing is lowered, thereby providing a stable optical wavelength conversion element. Thus, the phase-matched wavelength becomes constant, and variation in harmonic wave output is eliminated. Consequently, with respect to an optical wavelength conversion element utilizing a non-linear optical effect, a highly reliable element is provided.
摘要:
A fastener for attaching an attached article to an attaching object is taught that preferably include a holding member that is arranged and constructed to hold the attached article, and an engagement leg that is arranged and constructed to engage an engagement hole formed in the attaching object. The engagement leg is connected to the holding member via a breakable connecting device. The connecting device is arranged and constructed to be easily broken when a substantial force is applied thereto.