LED module

An LED module comprising:

• a light-diffusing substrate having light-transmissive properties;
• at least one LED chip bonded to a first surface of the light-diffusing substrate with a transparent first bond in-between;
• a color converter facing the first surface to cover the at least one LED chip;
• and
• a mounting substrate,
• the color converter comprising a transparent material containing phosphor which, when excited by light emitted from the at least one LED chip, emits light having a different color from the at least one LED chip, and
• a diffuse reflection layer diffusely reflecting light emitted from the at least one LED chip and light emitted from the phosphor, and the diffuse reflection layer being positioned facing a second surface of the light-diffusing substrate, wherein:
• the light-diffusing substrate includes a first ceramic layer on top of a porous layer comprising a ceramic and a glass component, and the light-diffusing substrate includes a surface and an interior and has a planar size greater than a planar size of the at least one LED chip, and
• a plurality of rays of light emitted from the at least one LED chip toward the light-diffusing substrate are diffused by the interior of the light-diffusing substrate and emerge outside through a peripheral part of the first surface of the light-diffusing substrate.