摘要:
In a wavefront sensor, an optical wavefront to be measured is split into a first optical path and a second optical path. A wavefront W1 in the first optical path is transmitted through a first compensation member 7, and a wavefront W2 in the second optical path is transmitted through a second compensation member 8. Wavefronts W1 and W2 are mixed together by a semi-transparent mirror 6 with the wavefronts being displaced from each other by a shearing quantity S to form an interference fringe. An optical path difference that occurs between two wavefronts W1′ and W2′ which reach the interference measurement plane M in a state where the wavefronts are inclined due to the arrival direction of the optical wavefront to be measured is compensated when the wavefronts W1′ and W2′ are transmitted through the first and second optical path difference compensation members 7 and 8, respectively.
摘要:
In a wavefront sensor, an optical wavefront to be measured that has entered an entrance pupil P is split into a first optical path L1 and a second optical path L2 by a semi-transparent mirror 3. A wavefront W1 traveling in the first optical path L1 is transmitted through a first optical path difference compensation member 7, and a wavefront W2 traveling in the second optical path L2 is transmitted through a second optical path difference compensation member 8. The wavefronts W1 and W2 are mixed together again by a semi-transparent mirror 6 in a state where the wavefronts are displaced from each other by a shearing quantity S to form an interference fringe on an interference measurement plane M. The intensity distribution of the interference fringe is measured by a photodetector 9, and a configuration of the optical wavefront to be measured is measured by a wavefront measurement portion 10. An optical path difference that occurs between a wavefront W1′ and a wavefront W2′ which reach the interference measurement plane M in a state where the wavefronts are inclined due to the arrival direction of the optical wavefront to be measured is compensated in advance when the wavefronts W1′ and W2′ are transmitted through the first and second optical path difference compensation members 7 and 8, respectively.
摘要:
A multi-layer ceramic capacitor has a temperature characteristic satisfying an X8R property and has a high specific resistance under a high temperature circumstance, in which the dielectric ceramic composition forming the dielectric ceramics is expressed by a formula: BaTiO3+aMgO+bMOx+cReO3/2+dSiO2, wherein MgO represents MgO conversion, MOx represents oxide conversion for 1 atom in 1 molecule of at least one metal selected from V, Cr, and Mn, ReO3/2 represents oxide conversion for 1 atom in 1 molecule of at least one rare earth metal selected from Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Y, and SiO2 represents SiO2 conversion, and wherein 0.4≦a≦3.0 mol, 0.05≦b≦0.4 mol, 6.0≦c≦16.5 mol, 3.0≦d≦5.0 mol, 2.0≦c/d≦3.3, based on 100 mol of BaTiO3.
摘要翻译:多层陶瓷电容器具有满足X8R性质的温度特性,并且在高温环境下具有高电阻率,其中形成电介质陶瓷的电介质陶瓷组合物由下式表示:BaTiO 3 > + aMgO + bMO x + cReO 3/2 + dSiO 2其中MgO表示MgO转化率,MO 表示1分子中选自V,Cr和Mn中的至少一种金属中的1个原子的氧化物转化率,ReO 3/2/2表示1分子中至少一种稀土的1个原子的氧化物转化率 选自Sm,Eu,Gd,Tb,Dy,Ho,Er,Tm,Yb和Y的金属,SiO 2表示SiO 2转化率,其中0.4 < = a <= 3.0摩尔,0.05 <= b <= 0.4摩尔,6.0 <= c <= 16.5摩尔,3.0 <= d <= 5.0摩尔,2.0 <= c / d <= 3.3,基于100摩尔BaTiO 3 SUB>。
摘要:
A highly reliable electronic device and a method for manufacturing the same are provided, the electronic device preventing entry of a plating solution via an external electrode and entry of moisture of external environment inside thereof, and generating no soldering defects nor solder popping defects which are caused by precipitation of a glass component on a surface of the external electrode. The structure is formed of Cu-baked electrode layers 6a and 6b primarily composed of Cu, Cu plating layers 7a and 7b which are formed on the Cu-baked electrode layers 6a and 6b and which are processed by a recrystallization treatment, and upper-side plating layers 9a and 9b formed on the Cu plating layers 7a and 7b. After the Cu plating layers 7a and 7b are formed, a heat treatment is performed at a temperature in the range of a temperature at which the Cu plating layers 7a and 7b are recrystallized to a temperature at which glass contained in a conductive paste is not softened (both inclusive), so that the Cu plating layers 7a and 7b are recrystallized.
摘要:
A projection type image display apparatus includes: a light source; an illumination optical system that uniformly illuminates beams, which are emitted from the light source, on a surface of an image modulation element as a primary image plane; and a projection optical system that projects image information of the primary image plane modulated by the image modulation element on a screen as a secondary image plane in an enlarged manner. The projection optical system includes a first optical system having a positive refractive power and including a plurality of transmissive surfaces, and a second optical system having a positive refractive power and including a concave reflective surface. The first optical system has a first reflective surface disposed between any surfaces of the plurality of transmissive surfaces, and a second reflective surface disposed between the first optical system and second optical system.
摘要:
A pattern is formed by applying a coating composition containing magnetic particles to an article so that a coating film is formed, and a plurality of sheet form magnets are placed along the front surface of this coating film. Adjacent sheet form magnets are arranged in such a state that the magnetic poles on the front surface and the magnetic poles on the back surface are different between adjacent sheet form magnets, and side surfaces of the sheet form magnets contact each other. The coating composition contains a thermoplastic resin, magnetic particles with flaky form and a specific low boiling point solvent and a specific high boiling point solvent. A magnetic field is applied to the coating film by the sheet form magnets, so that the magnetic particles in the coating film are oriented by the magnetic field and the magnetic particles are oriented substantially parallel to the front surface of the coating film above the contact portions between the sheet form magnets. Light is reflected from the magnetic particles in the coating film so that a pattern is formed.
摘要:
There is a need for providing a projection optical system that is appropriate for maintaining high resolution with low distortion, miniaturizing a reflector, decreasing the number of reflectors, and decreasing the depth and the bottom (or top) of a display used for a rear projection television, for example. The projection optical system according to the invention enlarges and projects images from a primary image surface existing at a reducing side to a secondary image surface existing at an enlarging side. The projection optical system has a first optical system L11 and a second optical system L12. The first optical system L11 forms an intermediate image (position II) of the primary image surface. The second optical system L12 has a concave reflector AM1 that forms the secondary image surface resulting from the intermediate image. A light beam travels from the center of the primary image surface and to the center of the secondary image surface and crosses an optical axis. The light beam is reflected on the concave reflector, crosses the optical axis again, and reaches the secondary image surface.
摘要:
There is provided a digital broadcasting receiver apparatus in which a temperature in the area surrounding a removable HDD does not become a high temperature during an operation regardless of whether it is disposed horizontally or vertically. A component with a large heat generating quantity and a component with a small heat generating quantity are installed in respective spaces inside a case. An adapter of the removable HDD is mounted to dispose the removable HDD in a space in which a component with a small heat generating quantity is mounted, thereby preventing the temperature in the area surrounding the removable HDD from becoming a high temperature.
摘要:
There is a need for providing a projection optical system that is appropriate for maintaining high resolution with low distortion, miniaturizing a reflector, decreasing the number of reflectors, and decreasing the depth and the bottom (or top) of a display used for a rear projection television, for example. The projection optical system according to the invention enlarges and projects images from a primary image surface existing at a reducing side to a secondary image surface existing at an enlarging side. The projection optical system has a first optical system L11 and a second optical system L12. The first optical system L11 forms an intermediate image (position II) of the primary image surface. The second optical system L12 has a concave reflector AM1 that forms the secondary image surface resulting from the intermediate image. A light beam travels from the center of the primary image surface and to the center of the secondary image surface and crosses an optical axis. The light beam is reflected on the concave reflector, crosses the optical axis again, and reaches the secondary image surface.
摘要:
A projection optical system and an image projection apparatus that are small in size and can achieve projection with a wide angle while a good image forming performance is assured includes a first lens group having a negative refracting power and a second lens group also having a negative refracting power. The first and second lens groups are arranged in order from the projection side. The first lens group includes a negative meniscus lens that has a concave surface directed to the projection side and formed as an aspherical reflecting surface.