An image capture apparatus including a light guide element, an image capture device and a light emitting device. The light guide element has a first side, a second side and a light emitting portion located at the second side. The light emitting portion includes a plurality of enhanced transmission microstructures. The image capture device is disposed on the second side of the light guide element corresponding to the position of the enhanced transmission microstructures. A light beam, which is generated by the light emitting device and transmitted at least by the light guide element, is totally reflected to form a signal light beam. Thereafter, the signal light beam passes through the enhanced transmission microstructures and then is received by the image capture device.