Patent ID: 11971570
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  F | IPC F

Claim 16:
17. The method of manufacturing the light diffuser of claim 15, wherein
the plurality of pre-light scattering portions are plate-shaped and different in length,
in each pre-light scattering portion, a concentration of the light scattering particles in the medium is substantially uniform,
the light scattering portion is formed to have a laminated structure by joining the plurality of pre-light scattering portions in a thickness direction, and
the method further comprising forming a structure of predetermined shape to function as a light guiding path for the first light by joining the light scattering portion formed in the second step and a light transmitting portion that does not include the light scattering particles in a medium.