摘要:
A light exposure illuminating apparatus is provided which, employing harmonics of a continuously outputted laser beam, is small-sized, inexpensive and free from speckles and which achieves a high light source utilization efficiency. Specifically, a harmonics generating 1 generates fourth harmonics which are reflected and swept via a scanning lens 2 by a polygonal mirror 3. A cylindrical reflecting mirror radiates the fourth harmonics reflected by the polygonal mirror 3 on an arcuate aperture formed in a light exposure mask by a sweeping movement. The light of fourth harmonics transmitted through the arcuate aperture reaches a reticle 7 set on a semiconductor pattern. The illuminating light passed through the reticle 7 is projected on a wafer 9 via a concave mirror 5 and a convex mirror 76. The area of light exposure may be increased since the reticle 7 and the wafer 9 are moved in synchronism with the scanning of the scanning optical system.
摘要:
A light exposure illuminating apparatus is provided which, employing harmonics of a continuously outputted laser beam, is small-sized, inexpensive and free from speckles and which achieves a high light source utilization efficiency. Specifically, a harmonics generating 1 generates light with fourth harmonics which are scanned by a scanning lens 2 and reflected and swept by a polygonal mirror 3. A cylindrical reflecting mirror radiates the sweeping fourth harmonics reflected by the polygonal mirror 3 onto an arcuate aperture formed in a light exposure mask. The light of fourth harmonics transmitted through the arcuate aperture reaches a reticle 7 set on a semiconductor pattern. The illuminating light passed through the reticle 7 is projected onto a wafer 9 via a concave mirror 5 and a convex mirror 76. The area of light exposure may be increased since the reticle 7 and the wafer 9 are moved in synchronism with the scanning of the scanning optical system.
摘要:
An optical pick-up apparatus includes a light source, an objective lens, a beam splitter, a detector, a first optical compensating device and a second optical compensating device. The objective lens converges a light beam emitted from the light source at one point on an optical axis. The beam splitter separates the light beam emitted from the light source from a returning light reflected on an optical disc. The detector detects the returning light separated from the light beam emitted from the light source. The first optical compensating device has a convex aspherical surface represented by X.alpha.R.sup.4 and is located on an optical path where the light beam is emitted from the light source. The second optical compensating device has a concave aspherical surface represented by +.alpha.R.sup.4 and is located on an optical path where the light beam is emitted from the light source.
摘要翻译:光学拾取装置包括光源,物镜,分束器,检测器,第一光学补偿装置和第二光学补偿装置。 物镜会聚从光源发射的光束在光轴上的一个点。 分束器将从光源发射的光束与在光盘上反射的返回光分离。 检测器检测与从光源发射的光束分离的返回光。 第一光学补偿装置具有由+ E,ovs X + EE alpha R4表示的凸非球面,并且位于从光源发射光束的光路上。 第二光学补偿装置具有由+αR4表示的凹形非球面,并且位于从光源发射光束的光路上。
摘要:
A combustion system capable of decreasing nitrogen oxide discharged from exhaust gas is provided. The combustion system includes: a combustion furnace (2) having a burner unit (2a) for supplying fuel and combustion oxygen to the inside of the furnace, a reduction zone formed on a downstream side of the burner unit (2a) for combusting the fuel, and a combustion oxygen supply port (2b) for supplying combustion oxygen (21) so that unburned fuel which has passed the reduction zone completely combusts; and a smoke removal device (9) for removing smoke in the exhaust gas discharged from the combustion furnace (2). Part of exhaust gas (22) diverging from between the combustion furnace (2) and the smoke removal device (9) is introduced to the burner unit (2a), while part of exhaust gas (23) diverging from a downstream side of the smoke removal device (9) is introduced to the combustion oxygen supply port (2b).
摘要:
A boiler structure that allows for an appropriate flow-rate distribution of an internal fluid to multiple divided furnace wall surfaces (water-wall) without excessive pressure loss so as to reduce the pressure loss (friction loss) occurring between furnace inlet headers and outlet headers is provided. In a boiler structure having a furnace water-wall (4) formed of multiple boiler evaporation tubes (3) disposed on a wall surface of a furnace and configured to generate steam by heating water inside the furnace when the water pressure-fed to the boiler evaporation tubes (3) flows inside the tubes, the boiler structure includes orifices (22), for an internal fluid, provided in inlet connection tubes (20) that guide the water to inlet headers (21) of furnace walls obtained by dividing the furnace water-wall (4) into multiple parts, and orifices (23) provided in nozzle stubs that guide the water from the inlet headers (21) to the boiler evaporation tubes (3).
摘要:
Provided is a boiler structure that allows for appropriate flow-rate distribution for each furnace wall by using a simple configuration without any moving parts in a wide thermal-load range of a furnace from a partial load to a rated load. In a boiler structure having a furnace water-wall formed of multiple boiler evaporation tubes and configured to generate steam by heating water inside the furnace when the water that is pressure-fed to the boiler evaporation tubes flows inside the tubes, the boiler structure includes a pressure-loss adjusting section, for an internal fluid, provided in an outlet connection tube that connects outlets of water walls obtained by dividing the furnace water-wall into multiple parts.
摘要:
A dental treatment apparatus is provided with an irradiation unit, a temperature detection unit and a control unit. The irradiation unit is constituted by N number of first light emitting elements S1 to SN, N number of first focusing lenses L1 to LN, and N number of optic fibers F1 to FN, combined on a 1:1 basis, and optic fibers Fn are bundled on the output side of the irradiation unit. The first light emitting element Sn is an element which outputs laser light having a specific wavelength λ within a range of 400 nm to 420 nm. The temperature detection unit is constituted by a non-contact temperature sensor and a wire. The non-contact temperature sensor detects the temperature at a site irradiated with laser light output from an emergent end.
摘要翻译:牙科治疗装置设置有照射单元,温度检测单元和控制单元。 照射单元由N个第一发光元件S 1〜S N N构成,N个第一聚焦透镜L 1〜L〜L N 1,N个光纤F 1到F N 1,以1:1为单位组合,并且光纤F < n SUB>捆扎在照射单元的输出侧。 第一发光元件S N是将具有特定波长λ的激光输出在400nm至420nm的范围内的元件。 温度检测单元由非接触式温度传感器和电线构成。 非接触式温度传感器检测从紧急端射出的激光照射的部位的温度。
摘要:
A contents distribution apparatus for distributing distribution data, which is converted by a method according to the difference of addressee terminal, is provided. A distribution apparatus 90 for distributing digital contents to an addressee terminal, which includes a contents storage unit 20 for storing digital contents, a data receiving unit 70 for receiving the type of an addressee terminal from a different requester than an addressee which requests to distribute digital contents, a converting unit 40 for converting digital contents into distribution data based on the type, and a distribution unit for connecting to an addressee terminal in a condition that the converting unit 40 has completed converting to distribution data and for distributing the distribution data to an addressee terminal.
摘要:
An optical signal, which is to become the subject of dispersion compensation, is split by optical combining/splitting unit 2, and each frequency component of the optical signal that is split is reflected by the corresponding reflective mirror 30 included in reflective mirror group 3 to apply a predetermined phase shift to the respective frequency components Each reflected frequency component is then combined using optical combining/splitting unit 2, to give dispersion compensated optical signal Furthermore, in regards to reflective mirror group 3, which is used to apply phase shift to each frequency component of an optical signal, each of the respective plurality of reflective mirrors 30 is made a movable mirror having a movable reflection position that reflects the frequency components. Through this, dispersion that develops in an optical signal may be compensated with favorable controllability and high accuracy. Therefore, the precision and controllability of dispersion compensation will become superior, and realized is a variable dispersion compensator having a miniaturized optical circuit, and an optical transmission system comprising such variable dispersion compensator,
摘要:
In order to make possible a variety of database searches, image data is registered on a first hard disk and a plurality of attribute tables each containing attribute information regarding images are registered on a second hard disk. When one search condition has been applied, a search of attribute information is conducted using one attribute table conforming to the search condition from among the attribute tables stored on the second hard disk. When another search condition has been applied, a search of attribute information is conducted using another attribute table stored on the second hard disk. Thus, a database can be searched even when search conditions differ.