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|1. (WO2017175517) LIGHT SOURCE APPARATUS AND ELECTRONIC APPARATUS EMPLOYING SAME|
|Title:||LIGHT SOURCE APPARATUS AND ELECTRONIC APPARATUS EMPLOYING SAME|
The objective of the present invention is to provide a light source apparatus which is compact and can be manufactured at low cost, and which is suitable for use as an illuminating light source for a display device of an electronic apparatus such as an HUD or an ultra-compact projector. This light source apparatus is provided with: a solid-state light source; a collimating optical system which converts light emitted from the solid-state light source into substantially parallel light; and a light guide into which the light emitted from the collimating optical system enters, and which outputs the light in a direction different to the direction from which the light entered the light guide. In addition, the light source apparatus is provided with a polarization converting element which aligns the polarization direction of the light emitted from the light guide into a single polarization direction.