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    • 1. 发明授权
    • Plane antenna
    • 平面天线
    • US4994820A
    • 1991-02-19
    • US446841
    • 1989-12-06
    • Hidetaka SuzukiHarumi OkazakiMotoki Hirano
    • Hidetaka SuzukiHarumi OkazakiMotoki Hirano
    • H01Q13/08H01Q1/32H01Q9/04H01Q9/40H01Q13/18
    • H01Q9/0414H01Q1/3275H01Q9/40
    • A plane antenna comprising first and second plates made of a synthetic resin. The first plate has a first metal film formed thereon and the second plate has a second metal film formed thereon. A plurality of pins extend between the first and second plates for maintaining the first and second plates in spaced-parallel relation to each other with the first and second films facing to each other. The pins include at least one first pin for providing an electric connection between the first and second metal films and a second pin insulated from the second metal film for providing an electric connection of the first metal film to a lead wire. The first and second metal films have a spacific resistance .rho. [m] and a permeability .mu. [H/m]. The first and second metal films have a thickness greater than a value t [m] calculated from an equation as follows: ##EQU1## where f is a signal frequency [Hz] for which the plane antenna is used.
    • 一种平面天线,包括由合成树脂制成的第一和第二板。 第一板具有形成在其上的第一金属膜,第二板具有形成在其上的第二金属膜。 多个销在第一和第二板之间延伸,用于将第一和第二板彼此间隔开平行,以使第一和第二膜彼此面对。 销包括至少一个用于在第一和第二金属膜之间提供电连接的第一引脚和与第二金属膜绝缘的第二引脚,用于提供第一金属膜与引线的电连接。 第一和第二金属膜具有空间电阻rho [m]和磁导率μ[H / m]。 第一和第二金属膜的厚度大于从以下等式计算的值t [m]:其中f是使用平面天线的信号频率[Hz]。
    • 3. 发明授权
    • Optical sensor including temperature control
    • 光学传感器包括温度控制
    • US06326610B1
    • 2001-12-04
    • US09309277
    • 1999-05-11
    • Satoru MuramatsuHidetaka Suzuki
    • Satoru MuramatsuHidetaka Suzuki
    • H01J724
    • H01L31/024G01J5/061H01L2924/0002Y10S257/93H01L2924/00
    • A first Peltier device Pe1 and at least one second Peltier device Pe2 having a current consumption smaller than that of the first Peltier device Pe1 are connected to each other in series, while a bypass circuit B for diverting an excess current I3 with respect to the second Peltier device Pe2 is connected to the second Peltier device Pe2 in parallel, so that a driving current I1 from a current control section A drives the first Peltier device Pe1 at its optimum operating point, and the excess current I3 with respect to the second Peltier device Pe2 in the driving current I1 is diverted into the bypass circuit B, so as to allow the second Peltier device Pe2 to be driven at its optimum operating point as well, where by the cooling efficiency can be improved. Also, the first and second Peltier devices Pe1, Pe2 are stacked on each other, while all the Peltier devices Pe1, Pe2 are driven by the single common current control section A, so as to attain a smaller size.
    • 电流消耗小于第一珀耳帖装置Pe1的第一珀耳帖装置Pe1和至少一个第二珀耳帖装置Pe2彼此串联连接,而旁路电路B用于相对于第二珀尔帖装置Pe1转移过量电流I3 珀耳贴装置Pe2并联连接到第二珀耳帖装置Pe2,使得来自电流控制部A的驱动电流I1在其最佳工作点驱动第一珀耳帖装置Pe1,相对于第二珀耳帖装置的过电流I3 驱动电流I1中的Pe2被转移到旁路电路B中,以便允许第二珀耳帖装置Pe2在其最佳工作点被驱动,从而可以提高冷却效率。 此外,第一和第二珀耳帖装置Pe1,Pe2彼此堆叠,而所有珀尔帖装置Pe1,Pe2由单个公共电流控制部分A驱动,从而获得较小的尺寸。