Patent ID: 8564784

Claim:
A large area optical diagnosis apparatus, comprising: a light source for emitting at least one incident light; a light-guiding unit comprising a plurality of light transmitting layers having different indexes of refraction, an inlet, and a plurality of outlets, the inlet being disposed on a first surface of the light-guiding unit, the plurality of outlets being disposed on a second surface of the light-guiding unit, the first surface being adjacent and connected to the second surface, the indexes of refraction of the plurality of light transmitting layers being different from the index of refraction of the external medium, when the at least one incident light is emitted into the light-guiding unit from the inlet on the second surface, the at least one incident light will be reflected several times in the plurality of light transmitting layers and then emitted out of the light-guiding unit from the plurality of outlets to form a plurality of parallel coherent lights; a light path structure comprising a plurality of optical units used for dividing the plurality of coherent lights into a plurality of first incident lights and a plurality of second incident lights, the plurality of first incident lights being emitted toward an object to be diagnosed and the plurality of second incident lights being emitted toward a reference end, the object to be diagnosed and the reference end reflecting the plurality of first incident lights and the plurality of second incident lights to be a plurality of reflected lights respectively; and a sensing module comprising a plurality of sensing units, for sensing the plurality of reflected lights to generate a sensing result related to the object to be diagnosed; wherein the light source comprises a plurality of point light sources, the reference end comprises a plurality of reference points, the object to be diagnosed comprises a plurality of diagnosis points; one of the plurality of point light sources, one of the plurality of optical units, one of the plurality of sensing units, one of the plurality of reference points, and one of the plurality of diagnosis points correspond to each other, the large area optical diagnosis apparatus performs a diagnosis on the plurality of diagnosis points via a rotating mechanism.