TheseSelf-Adjusting Reading Glassesmagnify from +.5 to +2.5. The secret to their versatility are the flex focus optic lenses, which automatically adjust to the right focus for your eyes. They are made with durable spring hinges and they come with a 30-day warranty. On sale for $9.99, you...
The utility model relates to a hot-melt adhesive gun with temperature control switch, which is applied for the bonding of industrial, furniture and decoration objects. A sealing ceramic heating unit is arranged in the internal hole of the openings of the two ends in the same direction under th...
19.A wearable device, comprising:an eye glasses body;a headband comprising a headband body connected with the eye glasses body; anda headband adjusting device, comprising:a mounting base comprising an internal ratchet;a linkage mounted on the mounting base, the linkage comprising a transmission membe...
A corresponding method for measuring and adjusting the luminance of a head-mounted display may include transitioning a head-mounted display from a normal operation mode to a calibration mode by moving an opaque covering from a closed position to an open position, such that, (1) when in the cl...