Patent ID: 8269918
Filing Date: 2012-09-18
Classification: G02B

Abstract:
1. A light source device comprising: first and second light guide elements; and first and second light emitting elements for supplying light to the first and second light guide elements respectively; wherein: the first and second light guide elements each has a wedge-like shape whose thickness is reduced from one end to the other end; the first and second light guide elements are tandem arranged such that the thinner end of the second light guide element lies over the thicker end of the first light guide element; and the first light guide element has holding sections recessed in a width direction in its thicker end on which the second light guide element lies; the thinner end of the second light guide element extends over and beyond the holding sections of the first light guide element; and a housing that contains the first and second light emitting elements and the first and second light guide elements, the housing having protrusions fitted with the holding sections.