Light Guiding Apparatus, Light Emitting Device, Electronic Device, and Key

A light emitting device, comprising:

• a light guiding apparatus;
• and
• a light source,
• wherein the light guiding apparatus comprises a light guiding body,
• wherein a prism structure is disposed in the light guiding body, and the prism structure is configured to reflect light that enters the light guiding body,
• wherein the light guiding body has a light incident surface and a light emitting surface,
• wherein the light incident surface is an irregular surface matched with the prism structure and is configured to reflect light reflected back from the prism structure to the light emitting surface, and
• wherein the light source is disposed at a position opposite to the prism structure in the light guiding apparatus.

A key, comprising:

• a light guiding apparatus,
• wherein the light guiding apparatus comprises a light guiding body,
• wherein a prism structure is disposed in the light guiding body, and the prism structure is configured to reflect light that enters the light guiding body,
• wherein the light guiding body has a light incident surface and a light emitting surface,
• wherein the light incident surface is an irregular surface matched with the prism structure and is configured to reflect light reflected back from the prism structure to the light emitting surface, and
• wherein a key part is disposed on the light emitting surface of the light guiding body of the light guiding apparatus.