摘要:
Generally, it is difficult to previously know an adequate position of a special optical surface such as an aspherical surface, a diffraction optical element, or an eccentric surface in an optical system. If a trial of designing an optical system with all the possible surface numbers is made, the number of combinations is very large, and the designing is often impossible. The invention solves such a problem and provides means for automatically and efficiently finding out the most suitable surface number of a special optical surface. According to the invention, the surface number of a special optical surface different from a spherical surface is expanded to a real number value, the constitution of an optical system including a special optical surface having a real number value surface number is defined, the real number value surface number is used as an independent variable for optimizing the optical system, and the best surface number of the special optical surface is determined. If the real number value surface number lies in the range from an integer n to an integer n+1, one method for defining the constitution of an optical system including the special optical surface is inserting one or more virtual optical surfaces between an optical surface n and an optical surface n+1 and setting the virtual optical surfaces as special optical surfaces determined by the characteristic values and the real number value surface numbers of the special optical surfaces and different from a spherical surface.
摘要:
Generally, it is difficult to previously know an adequate position of a special optical surface such as an aspherical surface, a diffraction optical element, or an eccentric surface in an optical system. If a trial of designing an optical system with all the possible surface numbers is made, the number of combinations is very large, and the designing is often impossible. The invention solves such a problem and provides means for automatically and efficiently finding out the most suitable surface number of a special optical surface. According to the invention, the surface number of a special optical surface different from a spherical surface is expanded to a real number value, the constitution of an optical system including a special optical surface having a real number value surface number is defined, the real number value surface number is used as an independent variable for optimizing the optical system, and the best surface number of the special optical surface is determined. If the real number value surface number lies in the range from an integer n to an integer n+1, one method for defining the constitution of an optical system including the special optical surface is inserting one or more virtual optical surfaces between an optical surface n and an optical surface n+1 and setting the virtual optical surfaces as special optical surfaces determined by the characteristic values and the real number value surface numbers of the special optical surfaces and different from a spherical surface.
摘要:
An apparatus for a method using hydrogen-occluded alloy for recovering power from waste heat includes first and second heat exchangers containing hydrogen-occluded alloy, a first selector valve for alternating introduction of waste heat fluid between the first and second heat exchangers, a second selector valve for alternating introduction of cooling fluid between the first and second heat exchangers, a turbine associated with the heat exchangers, and a power generator connected to the turbine. The hydrogen-occluded alloy in the first and second heat exchangers is in the form of a multiplicity of stages that release the hydrogen gas at different temperatures, with the hydrogen gas being produced at a prescribed pressure by contact with waste heat fluid.
摘要:
There is disclosed a method for surface-modifying a fluorocarbonpolymer-molded article and a method for chemical plating the surface. The method for surface-modifying comprises irradiating the fluorocarbonpolymer-molded article with an ultraviolet laser beam having a wavelength of 250 nm or less, in the presence of hydrazine compound, to make a surface of the said fluorocarbonpolymer-molded article hydrophilic. The surface made being hydrophilic is made lipophilic by chemical treating with an organic acid anhydride. The method for chemical plating comprises chemical plating the surface made being hydrophilic by the above method for surface-modifying, to deposit a metal film on a surface of the fluorocarbonpolymer-molded article.
摘要:
A method for promoting a boiling heat transfer by applying an electric field to a heat exchange medium, comprises making the relaxation time of an electric charge of a heat exchange medium used equal to or smaller than the characteristic time with respect to motion of bubbles generated by the heat transfer surface in the heat exchange medium to maximize the maximum boiling heat flux.
摘要:
To provide thin imaging optics that have magnification-adjustment functionality and can fit in a small-form-factor electronic device that has limited thickness or layout space. These imaging optics, which have magnification-adjustment functionality that allows magnification adjustment, are characterized in that a prism (P) with the ability to bend the optical axis by 90° is positioned on the object side. These imaging optics are also characterized in that at least the following are laid out, in this order, behind the optical-axis bending means: a positive-power first group (G1) that produces an intermediate image (II), said intermediate image (II) being a real image; a positive-power second group (G2) that refracts off-axis light rays toward a central axis (O); and a positive-power third group (G3) that focuses the intermediate image (II) onto an imaging element. Light-ray heights at the V-edges throughout the imaging optics are thereby kept low.
摘要:
To provide thin imaging optics that have magnification-adjustment functionality and can fit in a small-form-factor electronic device that has limited thickness or layout space. These imaging optics, which have magnification-adjustment functionality that allows magnification adjustment, are characterized in that a prism (P) with the ability to bend the optical axis by 90° is positioned on the object side. These imaging optics are also characterized in that at least the following are laid out, in this order, behind the optical-axis bending means: a positive-power first group (G1) that produces an intermediate image (II), said intermediate image (II) being a real image; a positive-power second group (G2) that refracts off-axis light rays toward a central axis (O); and a positive-power third group (G3) that focuses the intermediate image (II) onto an imaging element. Light-ray heights at the V-edges throughout the imaging optics are thereby kept low.
摘要:
The present inventors have found the presence of a nanobubble that has not been confirmed conventionally, and established a method for producing nanobubbles. The inventors have determined the theoretically expected characteristics of the produced nanobubbles, found new characteristics by analyzing data experimentally collected, and elucidated the relationship among the characters. Specifically, the inventors have found that a nanobubble has features such as decrease of the buoyant force, increase of the surface area, increase of the surface activity, generation of a local high-pressure field, interface activating action, and sterilizing action thanks to electrostatic polarization. By the association among the features, any of wide variety of objects can be cleaned with high performance and with light environmental load thanks to the function of adsorbing foul components, the function of cleaning the surface of an object quickly, and the sterilizing function, and polluted water can be purified. Nanobubbles can be applied to an organism to recover from fatigue and effectively used for chemical reactions.
摘要:
A thin electroconductive film is formed by irradiating a shaped article of chlorinated vinyl polymer with a pulsive light having a pulse duration of not greater than 100 nsec., a fluence of above about 15 mJ/cm.sup.2 /pulse and below that at which the polymer is subject to ablation, a laser wavelength of from about 190 to about 300 nm, and repetition frequency of above about 1 Hz and below that at which the polymer is subject to deformation and/or decomposition by a regenerative function of irradiation, under vacuum or in an oxygen-free atmosphere, thereby irradiating the article with total photon numbers of at least 1.times.10.sup.18 /cm.sup.2 without causing photocrosslinking, oxidation or cleavage of the backbone chain. The invention does not use materials other than the starting polymer such as solvents or strong bases that can contaminate the thin film during a dehydrochlorination, so there is no need to remove solvents after reaction and no residual salts will be formed in the dehydrochlorination.