Abstract: According to an aspect, there is provided a personal care device (52) for performing a light-based hair removal or photo-epilation operation on a body of a subject. The personal care device (52) comprises a housing (54) that includes a first window or opening (68), a light source configured to generate light to perform the light-based hair removal or photo-epilation operation, wherein the light source is arranged in the housing such that light emitted by the light source illuminates a part of the body, a receiving member in or on the housing (54) for receiving and retaining a consumer electronic device (62) in or on the personal care device (52), and an optical system (80) in the housing (54) for enabling an imaging unit (78) of a consumer electronic device (62) retained in the recess (60) to obtain images of a part of the body via the first window or opening (68).

Abstract: A hair care device (100) comprises a heat source (103) for heating hair up till a first temperature that is no more than 150° C. (and thus lower than a critical temperature at which hair cuticle damage will occur), and a radiation source (102) for—in combination with heat from the heat source (103)—selectively heating a hair cortex to a second temperature exceeding the first temperature and sufficiently high for hair styling.

Abstract: According to an aspect, there is provided a personal care device (52) for performing a light-based hair removal or photo-epilation operation on a body of a subject. The personal care device (52) comprises a housing (54) that includes a first window or opening (68), a light source configured to generate light to perform the light-based hair removal or photo-epilation operation, wherein the light source is arranged in the housing such that light emitted by the light source illuminates a part of the body, a receiving member in or on the housing (54) for receiving and retaining a consumer electronic device (62) in or on the personal care device (52), and an optical system (80) in the housing (54) for enabling an imaging unit (78) of a consumer electronic device (62) retained in the recess (60) to obtain images of a part of the body via the first window or opening (68).

Abstract: An ultrasound hair care device (10) for drying and styling hair (20). An ultrasound unit (12-18) applies ultrasound to the hair (20). A hair moisture measurement unit (22) measures a moisture level of the hair (20). A control unit (24) controls the ultrasound unit (12-18) based on the moisture level. In accordance with the present invention, in dependence on the moisture level, ultrasound is applied to the hair (20) at a first frequency not exceeding 1 MHz for drying the hair (20), and/or at a second frequency of at least 1 MHz for styling the hair (20).

Abstract: In a hair styling device (20), a light emitting diode (33) is configured to deliver optical energy to hair, wherein an energy fluence of the optical energy is between 0.5 and 9 J/cm2, and more preferably between 1 and 5 J/cm2. The light emitting diode (33) is pulse-driven, and a pulse width of the optical energy is at least 50 ms. An output wavelength of the optical energy may be between 400 and 900 nm. The pulse width of the optical energy is preferably between 50 and 300 ms. The hair styling device (20) may comprise an optical shield (32) configured to block stray light during light exposure of the hair. An inner surface of the optical shield (32) may be reflective and/or may have a parabolic shape.

Abstract: In a hair styling device (20), a light emitting diode (33) is configured to deliver optical energy to hair, wherein an energy fluence of the optical energy is between 0.5 and 9 J/cm2, and more preferably between 1 and 5 J/cm2. The light emitting diode (33) is pulse-driven, and a pulse width of the optical energy is at least 50 ms. An output wavelength of the optical energy may be between 400 and 900 nm. The pulse width of the optical energy is preferably between 50 and 300 ms. The hair styling device (20) may comprise an optical shield (32) configured to block stray light during light exposure of the hair. An inner surface of the optical shield (32) may be reflective and/or may have a parabolic shape.

Abstract: A hair care device (100) comprises a heat source (103) for heating hair up till a first temperature that is no more than 150° C. (and thus lower than a critical temperature at which hair cuticle damage will occur), and a radiation source (102) for—in combination with heat from the heat source (103)—selectively heating a hair cortex to a second temperature exceeding the first temperature and sufficiently high for hair styling.

Abstract: A hair care device for enhancing uptake of a topical in hair. The hair care device comprises a topical delivery unit for applying the topical to the hair surface, an ultrasound generator (103) for generating ultrasound at a frequency exceeding 15 MHz, wherein an ultrasound intensity is in a range between 2 W/cm2 and 100 W/cm2, and an ultrasound transducer (105) for applying ultrasound to the topical and/or the hair surface to enhance uptake of the topical by the hair.