Information processing system, information processing apparatus, and computer-readable non-transitory storage medium having stored therein information processing program

An information processing apparatus, comprising:

• an imaging device configured to capture an image;
• a first light emitting device configured to emit light;
• a second light emitting device configured to emit light, at least one of a half-power angle and an entrance angle of the second light emitting device being different from that of the first light emitting device;
• a light source detecting device configured to detect, in the image captured by the imaging device, a light source image including an image of retroreflecting material from a reflection member, the image of the retroreflecting material indicating light that has been emitted from the first light emitting device and/or the second light emitting device and reflected by the retroreflecting material;
• and
• control circuitry configured to selectively power the first light emitting device and/or the second light emitting device based on a distance from the reflection member to the information processing apparatus.

An information processing method for controlling an information processing system including at least a reflection member being of a retroreflecting material, and an information processing apparatus capable of image processing, the information processing method comprising:

• capturing an image using an imaging device;
• emitting light using a first light emitting device;
• emitting light using a second light emitting device, at least one of a half-power angle and an entrance angle of the second light emitting device being different from that of the first light emitting device;
• detecting, in the image captured using the imaging device, a light source image including an image of the retroreflecting material, the image of the retroreflecting material indicating light that has been emitted from the first light emitting device and/or the second light emitting device and reflected by the retroreflecting material;
• and
• selectively powering the first light emitting device and/or the second light emitting device based on a distance from the reflection member to the information processing apparatus.

A non-transitory computer-readable storage medium having store thereon an information processing program to be executed by a computer of an information processing system capable of image processing, the information processing program, when executed, causing the computer to provide execution comprising:

• capturing an image using an imaging device;
• emitting light using a first light emitting device;
• emitting light using a second light emitting device, at least one of a half-power angle and an entrance angle of the second light emitting device being different from that of the first light emitting device;
• detecting, in the image captured by the imaging device, a light source image including an image of retroreflecting material from a reflection member, the image of the retroreflecting material indicating light that has been emitted from the first light emitting device and/or the second light emitting device and reflected by the retroreflecting material;
• and
• selectively powering the first light emitting device and/or the second light emitting device based on a distance from the reflection member to the information processing system.