But the firm sees bigger applications, such as pointing a smartphone at an illuminated shop sign to read information being transmitted by the light: opening times, for example, or the latest bargains.

但卡西欧公司发现这项技术有更大的应用前景，比如将智能手机对准发光的商店招牌读取通过灯光传送的信息：如营业时间或最新优惠。