Abstract: Product related information desired by a customer is caused to be preferentially acquired by the customer even when a part of light incident on a POP advertisement is blocked by the customer. An information transmitting apparatus (1) includes a transmitting unit that transmits the product related information as a radio signal; a fluorescent concentrating plate (11) that emits fluorescent light upon reception of incident light from both surfaces of at least a front surface and a back surface and guides the fluorescent light; and a solar cell (13) that provides the transmitting unit with power generated upon reception of the fluorescent light. The fluorescent concentrating plate (11) functions as at least a part of a POP advertisement for a product and the solar cell (13) is arranged at an end of the fluorescent concentrating plate (11) so as to be able to receive the fluorescent light.

Abstract: A high visual effect is achieved while variation in electric current values among solar cells is suppressed. A fluorescent concentrating plate (2) provided in a fluorescent concentrator solar cell (11) according to an aspect of the invention includes a display portion (3) that includes a peripheral end surface (31) which emits a part of guided light to an outside to thereby perform light emission and a base portion (4) that includes an upper end surface (41) supporting the display portion (3), and a lower end surface (42) and side end surfaces (43 and 44) on which a solar cell array (5) is arranged.

Abstract: A cleaning tool includes: an adhesive portion that adsorbs an object to be adsorbed and a film portion that includes the adhesive portion. The film portion includes a hole portion which expands in accordance with an external force applied to the film portion. The adhesive portion is exposed to the outside of the film portion via the hole portion in a case where the external force equal to or greater than a predetermined magnitude is applied to the film portion.

Abstract: A case for a mobile electronic device is a case for a mobile electronic device which is capable of accommodating a mobile electronic device with a display surface, and supplying electric power to the mobile electronic device, the case including: a holder section having a first face which comes in contact with at least a portion of the mobile electronic device and a second face opposite from the first face; a protection cover to cover the display surface; a solar cell module provided on the protection cover to generate electric power, the solar cell module being externally exposed when the display surface is covered by the protection cover; and a moving mechanism capable of moving the protection cover over to the second face side while maintaining the solar cell module in an externally exposed state.

Abstract: A case for a mobile electronic device is a case for a mobile electronic device which is capable of accommodating a mobile electronic device with a display surface, and supplying electric power to the mobile electronic device, the case including: a holder section having a first face which comes in contact with at least a portion of the mobile electronic device and a second face opposite from the first face; a protection cover to cover the display surface; a solar cell module provided on the protection cover to generate electric power, the solar cell module being externally exposed when the display surface is covered by the protection cover; and a moving mechanism capable of moving the protection cover over to the second face side while maintaining the solar cell module in an externally exposed state.