| 摘要 |
PROBLEM TO BE SOLVED: To efficiently generate power while operating a mobile electronic apparatus even if illuminance is reduced and an output voltage of a solar cell module is reduced.SOLUTION: A mobile electronic apparatus case 200A is configured to accommodate a mobile electronic apparatus 300 including a display screen therein and is capable of supplying power to the mobile electronic apparatus. The mobile electronic apparatus case comprises a solar cell module 220 characterized in that, in the case where measurement is performed using a solar simulator in a standard state of JIS standard, if illuminance is reduced from 100 mW/cmto 1 mW/cmin a relation of illuminance and an open-circuit voltage, a voltage drop width of the open-circuit voltage is equal to or less than 0.2 V and the open-circuit voltage in the case where the illuminance is 1 mW/cmis equal to or higher than 0.55 V. When the mobile electronic apparatus case is used in the state where the mobile electronic apparatus is accommodated, the solar cell module is positioned at a rear side that is an opposite side of a display screen, and exposed outsides.SELECTED DRAWING: Figure 4 |
