Abstract: [Problems] The invention provides a plastic lens for eyeglasses by using diethylene glycol bisallyl carbonate as a lens material and which is made to have a main absorption peak in a wavelength range of 565 nm to 605 nm by mixing a coloring agent in which a visible light-absorption spectroscopic spectrum contains an azaporphyrin compound and to be durable for use as eyeglasses and polarized eyeglasses owing to the good antiglare and visibility properties of the coloring agent. [Solving means] The eyeglass lens made of an allyl diglycol carbonate resin which has a main absorption peak of visible light spectroscopic transmittance in a wavelength range of 565 nm to 605 nm as shown in FIG. 1 is obtained by using diethylene glycol bisallyl carbonate as a lens material, mixing an organic coloring agent containing a tetraazaporphyrin compound, mixing a peroxyester type peroxide or a peroxyketal type peroxide with a 10 hour-half life temperature of 90 to 110° C.

Abstract: In order for the discolored laminated glass lens for spectacles to have excellent glare-prevention characteristics, a tetraazaporphyrin compound is combined at a required concentration with an extremely thin adhesive agent layer in a manner so that unevenness of color does not arise, and of the light-absorbing ability expected for a laminated lens for spectacles. There is sufficient shielding of light in the vicinity of the 585 nm wavelength. In the laminated glass lens for spectacles, two glass lens substrates (2 and 3) (each about 1 mm thick) are bonded together with an adhesive agent layer (1) therebetween. A liquid substance of a solventless adhesive to which a pigment containing a tetraazaporphyrin compound is added together with an organic solvent is dropped onto the glass lens substrate (2) in the form of a droplet (1a; shown by phantom line in FIG.

Abstract: An infrared absorbing polarized eyeglass lens substrate includes a polarizing element including a polarizing film and a polyurethane resin material containing an infrared absorbing agent and covering both surfaces of the polarizing film, and an eyeglass lens substrate made of a polyurethane resin not containing an infrared absorbing agent and configured to be ground for adjusting lens power. The polarizing element is superposed on one side of the eyeglass lens substrate and integrated therewith by insert molding which accompanies polymerization reaction of the polyurethane resin material.

Abstract: [Problems] The invention provides a plastic lens for eyeglasses by using diethylene glycol bisallyl carbonate as a lens material and which is made to have a main absorption peak in a wavelength range of 565 nm to 605 nm by mixing a coloring agent in which a visible light-absorption spectroscopic spectrum contains an azaporphyrin compound and to be durable for use as eyeglasses and polarized eyeglasses owing to the good antiglare and visibility properties of the coloring agent. [Solving means] The eyeglass lens made of an allyl diglycol carbonate resin which has a main absorption peak of visible light spectroscopic transmittance in a wavelength range of 565 nm to 605 nm as shown in FIG. 1 is obtained by using diethylene glycol bisallyl carbonate as a lens material, mixing an organic coloring agent containing a tetraazaporphyrin compound, mixing a peroxyester type peroxide or a peroxyketal type peroxide with a 10 hour-half life temperature of 90 to 110° C.

Abstract: The object is to provide a spectacle lens which contains an infrared absorbing agent, and which shows excellent infrared absorbing properties by minimizing deterioration and decomposition of the infrared absorbing agent, and to provide a method of producing such an optical lens. This infrared absorbing spectacle lens is formed by adding an infrared absorbing dye to a polyurethane resin obtained by addition polymerization of a prepolymer produced by reacting a polyisocyanate with a polyhydroxy compound, and an aromatic polyamine. show excellent infrared absorbing properties with no deterioration or decomposition of the infrared absorbing agent. It is possible to prevent deterioration of the infrared absorbing agent due to additives such as peroxides (including polymerization catalysts and initiators such as benzoyl peroxide), as well as increased absorption of visible light, which was difficult with conventional resin materials for molding.

Abstract: A package substrate 3 has a high frequency transmission line, which is formed by a high frequency circuit layer 8 formed on the surface, a grounding layer 10b formed thereunder and a dielectric ceramic intervening between the layers 8 and 10b, and also has a plurality of MMICs 14. A lid 18 as a shielding member which electromangetically shields the high frequency transmission line and the MMICs 14 from one another, is bonded to the surface of the package substrate 3. The lid 18a has recesses 18a formed such as to face the high frequency transmission line and the MMICs 14. The surface of the package substrate 3 and the outer periphery of the lid 18 are hermetically sealed together by water-resistant resin. Thus, a step of bonding a shielding member is simplified and the yield of hermetic sealing of the bonded part of the shielding member is improved.

Abstract: A transistor device for a microwave oscillating element having an FET transistor chip and a package encapsulating the chip therein. In order to avoid any affection of the external circuit to the input impedance of the transistor device and to make the phase rotation low at a frequency band higher than the X band, a conductor element is provided within the package to connect the drain electrode of the chip and a corresponding terminal of the package. The conductor element has an inductance to provide a sufficient high impedance at the intended frequency band. The conductor element is supported on an insulator plate fixedly mounted within the package.

Abstract: The interior of a metal housing is divided by a dielectric substrate into two compartments. At least one of the compartments is kept air-tight. The substrate carries thereon a semiconductor active element chip for oscillation within the air-tight compartment and a dielectric resonator within the other compartment. The chip and the resonator, electromagnetically coupled with the chip, constitute a microwave oscillator whose oscillation frequency can be stabilized. A metal screw is threaded into that wall of the housing which defines the other compartment in a predetermined positional relationship to the resonator. The metal screw is rotatable to vary the distance between the screw and the resonator and, thereby, the oscillation frequency.

Abstract: A transistorized microwave oscillator comprising a resonator 2 coupled to a transistor 4, 5 and a feedback capacitor 7' around the transistor which produces a fundamental oscillation frequency and harmonics thereof. The feedback capacitor is located within a cut-off waveguide 21 and couples oscillations into the waveguide which blocks the lower undesired frequencies.

Abstract: A portalbe apparatus is disclosed for the diagnosis of a rotating machinery utilizing a fast Fourier transform frequency spectrum analysis system. The presence or absence of an abnormality or trouble in the rotating machinery is determined by selecting high amplitudes out from the frequency spectrum computed by the FFT frequency spectrum analysis system, arithmetically processing distribution data of spectrum amplitudes adjacent each frequency giving the corresponding high amplitude, and detecting the amplitude, at which the frequency of vibrations of the rotating machinery has attained a maximum value, together with such frequency. The diagnosis of the rotating machinery with this apparatus can be performed in situ, i.e., at the site of installation of such machinery.