| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical device having sealing structure of high barrier characteristic, keeping high stable optical characteristics over a long time, and is suitable for a dye-sensitized solar cell or the like. <P>SOLUTION: The optical device is equipped with a plurality of substrates 210, 240 facing each other, and houses an electrolyte 230 in an inside space between the substrates. A through hole 254, communicating with the outside, is installed in either substrate of the plurality of substrates, and the through hole comprises a recessed part 250 which open to the outside and a communicating hole 252 communicating with the recessed part and opened to the inside space; the communicating hole 252 is present in a region of the recessed part 250; and when the maximum opening area of the recessed part 250 is represented by S2 and an opening area in the communicating position with the recessed part 250 out of the communicating hole 252 is represented by S1, relation of S1<S2 is satisfied. <P>COPYRIGHT: (C)2007,JPO&INPIT |
