Abstract: Angular sensors that may be used in eye-tracking systems are disclosed. An eye-tracking system may include a plurality of light sources to emit illumination light and a plurality of angular light sensors to receive returning light that is the illumination light reflecting from an eyebox region. The angular light sensors may output angular signals representing an angle of incidence of the returning light.

Abstract: Angular sensors that may be used in eye-tracking systems are disclosed. An eye-tracking system may include a plurality of light sources to emit illumination light and a plurality of angular light sensors to receive returning light that is the illumination light reflecting from an eyebox region. The angular light sensors may output angular signals representing an angle of incidence of the returning light.

Abstract: Methods of designing a laser writing system for modifying a plurality of ophthalmic devices, and systems designed in accordance with those methods. One example of such a method includes: (a) determining at least one material characteristic of the ophthalmic devices, determined over a range of laser writing system parameters; (b) determining at least one design characteristic of the ophthalmic device; and (c) using at least the determined material and design characteristics, configuring at least one system parameter of the laser writing system to optimize throughput of the laser writing system, the laser writing system including: (i) a laser configured to generate a laser beam, (ii) a splitter configured to split the laser beam into a plurality of outputs, and (iii) a plurality of writing heads, each writing head configured to direct at least one of the outputs to an ophthalmic device to write one or more localized refractive index modifications into the ophthalmic device.