Abstract: A head-mounted augmented reality stereo vision optical film, including a light transmitting display layer, an optical projection layer, and an eye tracking layer, is provided. The light transmitting display layer has multiple pixel units. The optical projection layer has multiple light guide units. The light guide unit includes a pinhole configured corresponding to at least one of the pixel units. The eye tracking layer has multiple micro sensing elements.

Abstract: A head-mounted eye tracking system including an optical combiner, an eye tracker and a signal processor is provided. The optical combiner includes an optical coupler. The eye tracker is at least partially disposed on the optical combiner and is suitable for sensing an eyeball movement of a wearer. The eye tracker includes a plurality of light-emitting devices and a plurality of sensing devices. The plurality of light-emitting devices are suitable for emitting tracking beams. The plurality of sensing devices are suitable for receiving the tracking beams reflected by the eyeball of the wearer. The signal processor is signally connected to the eye tracker.

Abstract: A head-mounted augmented reality stereo vision optical film, including a light transmitting display layer, an optical projection layer, and an eye tracking layer, is provided. The light transmitting display layer has multiple pixel units. The optical projection layer has multiple light guide units. The light guide unit includes a pinhole configured corresponding to at least one of the pixel units. The eye tracking layer has multiple micro sensing elements.

Abstract: A head-mounted augmented reality stereo vision optical film on glasses, including a light-transmitting display layer, an optical projection layer, and an eyeball tracking layer, is provided. The light-transmitting display layer includes multiple pixel units. The optical projection layer includes multiple lens units. One of the lens units is configured to correspond to at least one of the pixel units. The eyeball tracking layer includes multiple micro-sensing elements.

Abstract: Provided is a recognition method of 3D vein pattern including the following steps. A plurality of first light beams are emitted by a recognition device to a wrist of a user. A plurality of first reflected light beams from the wrist are received by the recognition device to form a first 3D vein pattern of the wrist. Differences between the first 3D vein pattern and a wrist vein pattern of a database are compared to identify an identity or a gesture of the user. A recognition device of 3D vein pattern is also provided.

Abstract: A head-mounted eye tracking system including an optical combiner, an eye tracker and a signal processor is provided. The optical combiner includes an optical coupler. The eye tracker is at least partially disposed on the optical combiner and is suitable for sensing an eyeball movement of a wearer. The eye tracker includes a plurality of light-emitting devices and a plurality of sensing devices. The plurality of light-emitting devices are suitable for emitting tracking beams. The plurality of sensing devices are suitable for receiving the tracking beams reflected by the eyeball of the wearer. The signal processor is signally connected to the eye tracker.