A personal consumer product having an energy emitting element in selective electrical communication with a power source is provided. Thermal control circuitry is used to isolate the energy emitting element from the power source when a temperature of the energy emitting element exceeds a threshold. The thermal control circuitry includes a primary thermal control circuit and a redundant thermal control circuit. Methods for controlling the temperature of an energy emitting element of a personal consumer product are also provided.

A personal consumer product having an energy emitting element in selective electrical communication with a power source is provided. Thermal control circuitry is used to isolate the energy emitting element from the power source when a temperature of the energy emitting element exceeds a threshold. A diagnostics routine is used to test the functionality of the hardware and software of the personal consumer product.

A hair cutting device (10) is provided comprising a cutter unit (11), a skin stretcher (12) and slit adapting means. The cutter unit (11) comprises a skin-contact surface for dragging over a skin surface (21) in a shaving direction (55), a front surface arranged in front of the skin-contact surface in the shaving direction (55), and a laser beam exit window arranged in the front surface for allowing a hair cutting laser beam (13) to cut a hair (22) near the skin surface (21) in front of the front surface. The skin stretcher (12) is positioned in front of the cutter unit (11), according to the shaving direction (55), and comprises a stretcher surface for dragging over the skin surface (21) together with the skin-contact surface, such that a skin dome (23) is formed by the skin surface (21) in a slit between the skin stretcher (12) and the cutter unit (11). The slit adapting means are provided for adapting at least one dimension (51, 52, 54) of the slit for controlling a shape of the skin dome (23).

A smart shaving system with a three-dimension (3D) camera assists the user of a shaving razor. The 3D camera is communicatively connected to the shaving razor and to a razor cartridge vendor platform via an Internet-of-Things (IoT) gateway. The 3D camera can be incorporated into the shaving razor. The razor has hardware/software capabilities to function as a stand-alone Internet-of-Things (IoT) device. The 3D camera can assist the user to determine whether a particular skin surface area has been adequately shaved, and/or (ii) assist the user regarding the type of shaving cartridge and/or razor suited for the particular user's physical characteristics (e.g., skin and/or hair).

A system and method for treating a surface of a user’s body part, including: obtaining target surface condition information from a user’s body part surface using one or more condition sensors taken from a group consisting of: an optical sensor and a bio-sensor; classifying the target surface condition information using a machine learning classifier to determine an initial target surface condition classification; obtaining treatment progress information using a combination of motion sensor data and surface condition information from the one or more condition sensors; and classifying the treatment progress information using a machine learning classifier to determine a progress classification for treating the initial target surface condition classification.

Sensor-based shaving systems and methods of analyzing a user's shave event are described for determining a unique threshold value of the user. A grooming device comprises a handle having a connecting structure connected to a hair cutting implement. A shave event sensor associated with the grooming device measures a user behavior, which includes collecting a first dataset comprising shave data defining a shave event. The first dataset is transmitted via a communication device and is analyzed to determine baseline behavior data of the user, and a unique threshold value of the user is determined from the baseline behavior data. One or more subsequent datasets, each comprising shave data of one or more corresponding shave events, is compared to the unique threshold value to determine comparison data. An indication is provided, based on the comparison data, to indicate a deviation from the threshold value and to influence the user behavior.

According to an aspect, there is provided an apparatus comprising a processor configured to receive image data in respect of a user (102) of a personal care device (104), wherein the personal care device is to be used to treat a portion of the user; receive device operating data relating to the personal care device; determine position information of at least a treatment element (112) of the personal care device relative to the user; generate, based on the received image data, the received device operating data and the determined position information, an image (120) representative of a predicted appearance of the portion of the user following treatment using the personal care device; and provide the generated image for display on a representation of the user.

A shaver, comprising a handle body, a cartridge coupled to the handle body, the cartridge including a skin care treatment head, a transducer configured to generate electrical energy from mechanical energy, thermal energy, sound or acoustic waves, magnetic field and/or radiofrequency energy; and a battery configured to receive electrical energy generated by the transducer.

A shaving system, the system comprising a shaver including a shaver head, one or more sensors configured to detect a flow or sound of water or an orientation of the shaver and a processor configured to determine a duration and/or water usage during a shaving session and/or a rinsing session.

A system and method for operating a household cleaning appliance, including: providing a household cleaning appliance including, a powered and electronically controlled cleaning implement, and at least one physical sensor taken from a group consisting of: an orientation sensor, an acceleration sensor, an inertial sensor, a global positioning sensor, a pressure sensor, a load sensor, audio sensor, humidity sensor, and a temperature sensor; providing a camera associated with the household cleaning appliance; deriving an augmented classification using one or more classifiers classifying the physical sensor data and the image data; and modifying operation of the cleaning implement based upon the augmented classification.