Abstract: A light-emitting pedometer sneaker includes a body, at least one multicolor light-emitting unit and a pedometer module. The multicolor light-emitting unit is mounted on a vamp of the body. The pedometer module is mounted on a sole of the body, calculates a number of steps that a user has walked according to vibration generated when the user is walking, and controls a color of light emitted from the multicolor light-emitting unit. The user can be aware of the number of steps that the user has walked according to the color of the light emitted from the multicolor light-emitting unit and plans for a desired amount of exercise for the purpose of adequate exercise. The light-emitting pedometer sneaker can emit light in the dark to warn vehicles in the neighborhood off and avoid occurrence of a traffic accident.

Abstract: The present invention discloses a tunable optical integrated element using liquid crystal as an active layer, which is applied to filters, couplers or optical add/drop multiplexer. The present invention includes a layer of liquid crystal as an active layer, a first waveguide with grating and a second waveguide, an isolation layer, a pair of electrodes. By applying the external voltage to control the direction of the liquid crystal, the refractive index of the waveguide changes in accordance with the modulation of the electric field. Thus invention has the features of simple structure, easy assembling, lower cost and integrating ability.

Abstract: The present invention discloses a tunable optical integrated element using liquid crystal as an active layer, which is applied to filters, couplers or optical add/drop multiplexer. The present invention includes a layer of liquid crystal as an active layer, a first waveguide with grating and a second waveguide, an isolation layer, a pair of electrodes. By applying the external voltage to control the direction of the liquid crystal, the refractive index of the waveguide changes in accordance with the modulation of the electric field. Thus invention has the features of simple structure, easy assembling, lower cost and integrating ability.