A hairstyling device is provided. The hairstyling device includes a heatable hair contact member having a hair-contactable surface, the hair contact member being operable to apply heat to a tress of hair of a user via the hair-contactable surface. The hairstyling device includes a controller configured to determine that the hair contact member is moving along the tress from a first end of the tress towards a second end of the tress. The controller is configured to, based on the determining, control heating of the hair contact member to cause the operating temperature of the hair contact member to change as the hair contact member moves along the tress from the first end of the tress towards the second end of the tress.

A hairstyling device is provided. The hairstyling device includes a heatable hair contact member having a hair-contactable surface, the hair contact member being operable to apply heat to a tress of hair of a user via the hair-contactable surface. The hairstyling device includes a controller configured to determine that the hair contact member is moving along the tress from a first end of the tress towards a second end of the tress. The controller is configured to, based on the determining, control heating of the hair contact member to cause the operating temperature of the hair contact member to change as the hair contact member moves along the tress from the first end of the tress towards the second end of the tress.

Apparatus for manipulating the shape of hair using dielectric heating is provided. Typically, the apparatus comprises opposing first and second electrodes respectively provided on first and second arms that are movable towards and away from one another; and drive circuitry for supplying electrical energy to the first and second electrodes, to cause an alternating electric field to be produced in the vicinity of the electrodes in use, and thereby cause dielectric heating of hair placed between the electrodes in use. Sensing circuitry may also be provided for sensing a change in coupling of energy from the alternating electric field to the hair during heating of the hair; and control circuitry for controlling the drive circuitry to vary the electrical energy supplied to the first and second electrodes in dependence upon the sensed change in coupling. A related method of manipulating the shape of hair using dielectric heating is also provided.

Apparatus for manipulating the shape of hair using dielectric heating is provided. Typically, the apparatus comprises opposing first and second electrodes respectively provided on first and second arms that are movable towards and away from one another; and drive circuitry for supplying electrical energy to the first and second electrodes, to cause an alternating electric field to be produced in the vicinity of the electrodes in use, and thereby cause dielectric heating of hair placed between the electrodes in use. Sensing circuitry may also be provided for sensing a change in coupling of energy from the alternating electric field to the hair during heating of the hair; and control circuitry for controlling the drive circuitry to vary the electrical energy supplied to the first and second electrodes in dependence upon the sensed change in coupling. A related method of manipulating the shape of hair using dielectric heating is also provided.

The present invention provides a heating apparatus for heating a load. The heating apparatus comprises a heater having a heating element for receiving electrical power and for converting the electrical power into heat to heat a heating surface of the heater. The heating apparatus also comprises a temperature sensor for sensing and outputting a measurement of the temperature of the heating element, a power actuator for providing the electrical power to the heating element of the heater, a power sensor for sensing and outputting a measurement of the power provided to the heating element by the power actuator, and control circuitry for controlling the power actuator to control the power delivered by the power actuator to the heating element. The control circuitry is configured to receive the temperature measurement from the temperature sensor, receive the power measurement from the power sensor, combine the temperature measurement and the power measurement, and control the power actuator in dependence upon the combined temperature measurement and power measurement. This ensures that the temperature of the heating surface is constant throughout a period when the load is applied.

The present invention provides a heating apparatus for heating a load. The heating apparatus comprises a heater having a heating element for receiving electrical power and for converting the electrical power into heat to heat a heating surface of the heater. The heating apparatus also comprises a temperature sensor for sensing and outputting a measurement of the temperature of the heating element, a power actuator for providing the electrical power to the heating element of the heater, a power sensor for sensing and outputting a measurement of the power provided to the heating element by the power actuator, and control circuitry for controlling the power actuator to control the power delivered by the power actuator to the heating element. The control circuitry is configured to receive the temperature measurement from the temperature sensor, receive the power measurement from the power sensor, combine the temperature measurement and the power measurement, and control the power actuator in dependence upon the combined temperature measurement and power measurement. This ensures that the temperature of the heating surface is constant throughout a period when the load is applied.

A cordless hairstyling device, a method of operating the hairstyling device, and a computer program comprising a set of instructions, which, when executed causes a computerized device to perform the method is provided. The device includes a heatable hair contact member having a hair contact-able surface, the hair contact member being operable to apply heat to a tress of hair of a user via the hair contactable surface, at least one sensor configured to sense a change in state of the device from a first stationary state to a second moving state, and a controller configured to, in response to the at least one sensor sensing a change in state from the first state to the second state, cause the hair contact member to heat to a pre-determined operating temperature by a pre-determined amount of time after the detected state change.

A cordless hairstyling device, a method of operating the hairstyling device, and a computer program comprising a set of instructions, which, when executed causes a computerized device to perform the method is provided. The device includes a heatable hair contact member having a hair contact-able surface, the hair contact member being operable to apply heat to a tress of hair of a user via the hair contactable surface, at least one sensor configured to sense a change in state of the device from a first stationary state to a second moving state, and a controller configured to, in response to the at least one sensor sensing a change in state from the first state to the second state, cause the hair contact member to heat to a pre-determined operating temperature by a pre-determined amount of time after the detected state change.

A hairstyling device is provided. The hairstyling device includes a heatable hair contact member having a hair-contactable surface, the hair contact member being operable to apply heat to hair via the hair-contactable surface. The hairstyling device includes an inertial measurement unit, IMU, configured to output signals dependent on movement of the hair contact member. The hairstyling device includes a controller configured to receive a signal from the IMU indicating movement of the hair contact member along a tress of hair between a first end of the tress and a second end of the tress, process the received signal to determine a speed of the hair contact member, and control heating of the hair contact member based on the determined speed.

A hairstyling device is provided. The hairstyling device includes a heatable hair contact member having a hair-contactable surface, the hair contact member being operable to apply heat to hair via the hair-contactable surface. The hairstyling device includes a controller configured to monitor power draw associated with heating of the hair contact member during heating of hair of a user via the hair-contactable surface. Based on the monitored power draw, one or more hair damage parameters indicative of damage of the heated hair are calculated. The controller is configured to control the hairstyling device based on the one or more calculated hair damage parameters.