Abstract: The present invention discloses a device and a method for controlling growth of hair on human skin with low doses of electromagnetic radiation, and a device for carrying out the method. In the method, radiation of a suitable spectrum is applied to the skin, in one or more pulses of between 1 and 100 ms, and with maximum fluencies on the skin between 1 and 12 J/cm2. By applying such low fluencies and at controlled pulse durations, follicles of the hairs are induced to the catagen phase. This means that the growth of the hairs of those follicles will stop. Although the method is not primarily aimed at immediate hair removal, hairs may be shed subsequently. In any case, further growth may be stopped for prolonged periods of time. The main advantage of the method is that the risk of damage to the skin is minimized.

Abstract: The invention provides a treatment device (100) for fractional laser-based treatment. The treatment device comprises a treatment generator (80) comprising a treatment laser (20) and a laser scanning system (30). The laser scanning system comprises at least one movable deflection element and is configured and arranged for scanning laser light across an emission window (70) towards skin tissue (110) from a plurality of locations (74) in the emission window by moving the at least one deflection element relative to the emission window, whereby, in use, laser-based lesions (120) are generated inside the skin tissue. The treatment device also comprises a controller (60) for generating a predefined disposition of lesions (120) in the skin tissue by emitting laser light via selected ones of the plurality of locations in the emission window while the treatment device is moved relative to the skin surface (105).

Abstract: A treatment device for fractional laser-based skin treatment includes an emission window having an elongated area and predefined locations that are arranged in an elongated array which extends along a treatment axis of the window. A treatment generator has a treatment laser for emitting laser light towards skin tissue from the predefined locations in the emission window for generating, in use, laser-based lesions inside the skin tissue. The treatment device also includes a motion sensor for sensing motion of the treatment device relative to the skin surface, and a controller for determining a non-zero sequence of at least one of the predefined locations from which laser light is consecutively emitted in dependence on the sensed motion. The controller allows generation of the non-zero sequence when the sensed motion of the treatment device relative to the skin surface only has a component in a direction parallel to the treatment axis.

Abstract: A skin treatment device comprising a light source providing a light beam for optically treating skin, a wheel with a wheel surface for reflecting the light beam towards the skin, driving means for rotating the wheel and changing an angular position of the wheel, where different angular positions of the wheel correspond to different directions of reflection for the light beam, an angular position detector for detecting the angular position of the wheel, storage means for storing predefined skin-treatment patterns, a relation between the different angular positions of the wheel; and different reflection directions of the light beam, a control circuit coupled to the light source. The light source being controlled in dependence on the detected angular position such that, for each revolution of the wheel, the light beam is controlled to only illuminate the wheel surface in selected angular positions of the wheel to realize a predefined skin-treatment pattern.

Abstract: The present application relates to a microdermabrasion device (1). The device has a suction path (11) along which skin fragments removed by the device are drawn, and a detection unit (3) configured to determine one or more characteristics of skin fragments drawn along the suction path. The detection unit is configured to determine the depth of abrasion performed by the device based on the one or more characteristics of skin fragments drawn along the suction path. The present application also relates to a method of determining the operating depth of abrasion of a microdermabrasion device.

Abstract: The invention relates to a lower eyelid treatment device (1), which comprises a skin treatment structure (3) having a protruding shape which is able to perform a periodical first movement through a stationary reference point (P) in a skin treatment zone (8) of the device. Said periodical first movement occurs in the reference point (P) at a frequency within a frequency range between 0.5 Hz and 3.0 Hz. Said periodical first movement is a local movement of the protruding shape through the reference point (P), at a velocity in the reference point (P) within a velocity range between 0.005 m/sec and 0.05 m/sec, in a single local movement direction (12) in the reference point (P) being transverse to a local protrusion direction of the protruding shape. In this manner, the device provides a specific massage of eye bags of a treated person. The massage results in lymphatic drainage of fluid, which undesirably has built up in the skin of the lower eyelid area (52), towards (14) lymph nodes near the ear.

Abstract: The invention provides a treatment device (100) for fractional laser-based treatment. The treatment device comprises a treatment generator (80) comprising a treatment laser (20) and a laser scanning system (30). The laser scanning system comprises at least one movable deflection element and is configured and arranged for scanning laser light across an emission window (70) towards skin tissue (110) from a plurality of locations (74) in the emission window by moving the at least one deflection element relative to the emission window, whereby, in use, laser-based lesions (120) are generated inside the skin tissue. The treatment device also comprises a controller (60) for generating a predefined disposition of lesions (120) in the skin tissue by emitting laser light via selected ones of the plurality of locations in the emission window while the treatment device is moved relative to the skin surface (105).

Abstract: The invention provides a treatment device (100) for fractional laser-based skin treatment. The treatment device comprises an emission window (70) comprising an elongated area (75) and a plurality of predefined locations (74) in said elongated area (75), wherein the predefined locations (74) are arranged in an elongated array which extends along a treatment axis (72) of the window (70), and wherein each predefined location (74) in the array is located at a distance from the treatment axis (72), seen in a direction perpendicular to the treatment axis (72), which is smaller than 25% of a maximum distance between two predefined locations (74) in the array, seen in a direction parallel to the treatment axis (72).

Abstract: The present application relates to a microdermabrasion device (1). The device has a suction path (11) along which skin fragments removed by the device are drawn, and a detection unit (3) configured to determine one or more characteristics of skin fragments drawn along the suction path. The detection unit is configured to determine the depth of abrasion performed by the device based on the one or more characteristics of skin fragments drawn along the suction path. The present application also relates to a method of determining the operating depth of abrasion of a microdermabrasion device.

Abstract: A skin treatment device comprising a light source for providing a light beam for optically treating a skin, a wheel with a wheel surface for reflecting the light beam towards the skin, wherein different angular positions of the wheel correspond to respective different directions of reflection for the light beam, driving means for rotating the wheel for changing the angular position of the wheel, an angular position detector for detecting the angular position of the wheel, a storage means for storing a predefined skin-treatment pattern and a relation between the different angular positions of the wheel and the corresponding respective different directions of reflection for the light beam, and a control circuit coupled to the light source, the angular position detector and the storage means and being operative to control the light source in dependence on the angular position detected by the angular position detector in such a way that, for each revolution of the wheel, the light beam only illuminates the wheel

Abstract: The present invention discloses a method for controlling growth of hair on human skin with low doses of electromagnetic radiation, and a device (1) for carrying out the method. In the method, radiation (13) of a suitable spectrum is applied to the skin (12), in one or more pulses of between 1 and 100 ms, and with maximum fluencies on the skin between 1 and 12 J/cm2. By applying such low fluencies and at controlled pulse durations, follicles of the hairs are induced to the catagen phase. This means that the growth of the hairs of those follicles will stop. Although the method is not primarily aimed at immediate hair removal, hairs may be shed subsequently. In any case, further growth may be stopped for prolonged periods of time. The main advantage of the method is that the risk of damage to the skin is minimized.

Abstract: A photo-epilation device including a hand-held housing with at least one window opening; a lamp accommodated in the housing for generating light having a spectral range from approximately 575 nm to approximately 1700 nm; and a control device for driving the lamp. The lamp is switched on in brief pulses having a pulse duration in the range from 1.1 ms to 1.9 ms, and a pulse repetition frequency in the range from 0.1 Hz to 0.5 Hz. The fluence on skin level is in the range from 2 to 7 J/cm2, dependent on the skin type.

Abstract: The present invention relates to a skin treatment device (1, F). The device comprises a radiation source (13) in a housing, such that radiation can be emitted through an exit opening in the housing. It further comprises at least one skin presence sensor (43, 63) capable of measuring the presence of skin (7) in a number of respective positions, and a control unit (37). The control unit (37) is constructed to determine a covered portion of the exit opening (15) from a measurement signal of the skin presence sensor and to restrict emission of the radiation (13) to the covered portion of the exit opening (15), e.g. by modifying the control of a radiation beam manipulator (11), or by controlling radiation-blocking means, such as blinds, in the exit opening (15). The invention provides a more efficient and yet safe treatment device (1, 1?), since a larger exit opening (15) can be selected, while unwanted emission of radiation (13) through uncovered portions of the exit opening (15) is still prevented.

Abstract: A photo-epilation device (1) comprises: a hand-held housing (10) with at least one window opening (11); a lamp (20) accommodated in the housing for generating light having a spectral range from approximately 575 nm to approximately 1700 nm; and a control device (70) for driving the lamp (20). The lamp is switched on in brief pulses having a pulse duration in the range from 1.1 ms to 1.9 ms, preferably about 1.8 ms, and a pulse repetition frequency in the range from 0.1 Hz to 0.5 Hz. The fluence on skin level is in the range from 2 to 7 J/cm2, dependent on the skin type, particularly from: 5 to 7 J/cm2 for skin types I, II, III; 4 to 6 J/cm2 for skin type IV; 3 to 5 J/cm2 for skin type V; and 2 to 3 J/cm2 for skin type VI.

Abstract: The present invention discloses a device and a method for controlling growth of hair on human skin with low doses of electromagnetic radiation, and a device for carrying out the method. In the method, radiation of a suitable spectrum is applied to the skin, in one or more pulses of between 1 and 100 ms, and with maximum fluencies on the skin between 1 and 12 J/cm2. By applying such low fluencies and at controlled pulse durations, follicles of the hairs are induced to the catagen phase. This means that the growth of the hairs of those follicles will stop. Although the method is not primarily aimed at immediate hair removal, hairs may be shed subsequently. In any case, further growth may be stopped for prolonged periods of time. The main advantage of the method is that the risk of damage to the skin is minimized.

Abstract: The invention relates to a device (1) for removing hair (46) from skin (30), comprising an optical hair cutting device(12, 14, 20), and a hair and debris removing system. The hair removing system comprises a remover part (36) that mechanically engages the hair (46) in order to remove it after severing, or cutting. The use of mechanical engaging has the advantage that the optical contactless severing method, which by itself is not capable of removing hairs after cutting, is assisted in actual removing the hairs. The debris removing system may comprise a brush (36), a tape or fluid dispenser, etc., and may be assisted by a suction device (48).

Abstract: A method of removing bio films from a surface is disclosed. The method includes a source of bubbles in a liquid medium being provided. The bubbles having a predetermined size. A source of ultrasound waves at a predetermined frequency also being provided. The bubbles in the liquid medium being output toward the surface. The ultrasound waves also being directed toward the surface so that the bubbles vibrate at the predetermined frequency of the ultrasound waves. The predetermined size of the bubbles is approximately related to the frequency of the ultrasound waves.

Abstract: A device treats skin by radiation. The device has a housing accommodating a radiation source and having an exit opening for the radiation. The device activates the radiation source only if the presence of skin immediately in front of the exit opening is detected. The radiation source cannot be activated if the exit opening is not covered.

Abstract: A device for the treatment of skin by radiation pulses. The device has a detector measuring a biophysical property of skin, such as temperature increase, dispersion or absorption coefficient, or reflection coefficient for light having a predetermined wavelength, and also has a control unit which determines, from the biophysical property, a safe dose of radiation. The device automatically protects against an overdose from the radiation source. The invention can be used, not only in a hair removing device such as a laser epilator, a laser shaver or a flashlight epilator, but also in devices for the medical treatment of skin by means of radiation, such as photodermatology systems.

Abstract: The invention relates to a device (1) for the treatment of skin (7) by means of radiation. The device comprises a housing (3) accommodating a radiation source (9) and having an exit opening (15) for the radiation. The device has a control unit (37) which activates the radiation source only if the presence of the skin immediately in front of the exit opening is detected by a detector (43) that co-operates with the control unit. As a result, the radiation source cannot be activated if the exit opening is not covered.