Abstract: A hair styling device (1) comprises a hair styling component (11, 13), a heating mechanism (20) configured to heat the hair styling component (11, 13), a component temperature sensor (21) configured to detect a temperature of the hair styling component (11, 13), a hair temperature sensor (22) configured to detect a temperature of hair faced by the hair styling component (11, 13) during operation of the hair styling device (1), and a controller (23) configured to receive input from at least both temperature sensors (21, 22), and to process the inputs to control operation of the heating mechanism (20) and obtain a temperature setting of the hair styling component (11, 13) in view of a moisture content of the hair estimated from at least the hair temperature.

Abstract: A device for measuring hair properties has a first part (I) and a second part (II) between which hair (H) is guided. The first part includes a measuring probe (MP), and the second part is arranged for deforming the hair against the measuring probe. While the device moves along the hair, the measuring probe experiences both a friction force resulting from the hair being guided along the measuring probe, and a deformation force resulting from hair deformation by the second part against the measuring probe. The second part includes a pressure element (PB, S) for pressing the hair against the measuring probe. In alternative embodiments, the second part comprises alignment elements (AE) at opposite sides of the measuring probe, and guidance elements (G) for mitigating an influence of an angle at which the device is applied to the hair to the friction force and/or the deformation force.

Abstract: A hair care device comprises a body having an output to supply heated air, and at least two different attachments that can be attached to the output of the body. In accordance with the invention, the body comprises a detector for detecting whether one of the attachments is attached to the body, and if so, which attachment is attached to the body, to provide a detection result, and a controller for controlling the supply of heated air in dependence on the detection result. According to the invention, each attachment has at least one magnet at predefined positions at an attachment contact area of the attachment for contacting the body, the at least two attachments having mutually different magnet configurations, and the detector comprises a plurality of Hall effect sensors at predefined positions (?) at a body contact area for contacting a selected one of the attachments.

Abstract: A hair straightener (HS) comprises a heating unit (HU) for heating hair while exercising a pressure on the hair, a temperature sensor (TS) for measuring a temperature of the heated hair to obtain a measured temperature, and a pressure adjustment unit (PAU) for adjusting the pressure exercised by the heating unit (HU) on the hair, in dependence on the measured temperature. The heating unit (HU) may comprise a pair of heating plates (HP1, HP2) between which hair is clamped, and the pressure adjustment unit (PAU) may be arranged for changing a distance between the heating plates (HP1, HP2). The pressure adjustment unit (PAU) may comprise a motor-operated push tool (W, C) for increasing the distance between the heating plates (HP1, HP2) when the measured temperature exceeds a first threshold temperature. The hair straightener (HS) may comprise a pair of hinged arms (A1, A2) each provided with a respective one of the heating plates (HP1, HP2).

Abstract: A hair straightener (HS) comprises a heating unit (HU) for heating hair while exercising a pressure on the hair, a temperature sensor (TS) for measuring a temperature of the heated hair to obtain a measured temperature, and a pressure adjustment unit (PAU) for adjusting the pressure exercised by the heating unit (HU) on the hair, in dependence on the measured temperature. The heating unit (HU) may comprise a pair of heating plates (HP1, HP2) between which hair is clamped, and the pressure adjustment unit (PAU) may be arranged for changing a distance between the heating plates (HP1, HP2). The pressure adjustment unit (PAU) may comprise a motor-operated push tool (W, C) for increasing the distance between the heating plates (HP1, HP2) when the measured temperature exceeds a first threshold temperature. The hair straightener (HS) may comprise a pair of hinged arms (A1, A2) each provided with a respective one of the heating plates (HP1, HP2).

Abstract: A device for measuring hair properties has a first part (I) and a second part (II) between which hair (H) is guided. The first part (I) comprises a measuring probe (MP), and the second part (II) is arranged for deforming the hair (H) against the measuring probe (MP). While the device moves along the hair (H), the measuring probe (MP) experiences both a friction force resulting from the hair (H) being guided along the measuring probe (MP), and a deformation force (DF) resulting from the hair (H) being deformed by the second part (II) against the measuring probe (MP). Advantageously, the second part (II) comprises a pressure element (PB, S) for pressing the hair (H) against the measuring probe (MP), to squeeze the hair (H).

Abstract: A hair care device comprises a body having an output to supply heated air, and at least two different attachments that can be attached to the output of the body. In accordance with the invention, the body comprises a detector for detecting whether one of the attachments is attached to the body, and if so, which attachment is attached to the body, to provide a detection result, and a controller for controlling the supply of heated air in dependence on the detection result. According to the invention, each attachment has at least one magnet at predefined positions at an attachment contact area of the attachment for contacting the body, the at least two attachments having mutually different magnet configurations, and the detector comprises a plurality of Hall effect sensors at predefined positions (?) at a body contact area for contacting a selected one of the attachments.