Abstract: A skin treatment system (1) comprises a functional member (20) configured to perform a treatment action on skin (2) and to be moved over the skin (2) during operation of the system (1), and a measurement unit (40) including a measurement member (41) configured to be moved over the skin (2) along with the functional member (20) and to be made to indent the skin (2) in the process. The measurement member (41) is displaceable in the measurement unit (40), and the measurement unit (40) is configured to measure a value related to an extent to which the measurement member (41) gets displaced relative to a default position in the measurement unit (40) by action of the skin (2). The measured value corresponds to a measure of an extent to which the skin is indented by the measurement member (41). On the basis of measurement results generated by the measurement unit (40), it is possible to automatically adapt operation of the system (1) to the type of body area under treatment.

Abstract: A skin treatment system (1) such as a depilating system comprises a functional member (20) that is configured to perform a treatment action on skin (2) and to be moved over the skin (2) during operation of the system (1), and a measurement unit (40) including a measurement member (41) that is configured to also be moved over the skin (2) during operation of the functional member (20) and to contact the skin (2) in the process. The measurement unit (40) is configured to measure at least a force value in an advancing direction in which the measurement member (41) is moved over the skin (2) during operation of the functional member (20). The measured force value in the advancing direction is used for the purpose of determining a friction coefficient value representative of the friction coefficient of the skin (2), which allows for assessing skin condition.

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 depilating device (1) comprises a depilating body (10) which is rotatable about a rotation axis (R) extending in a longitudinal direction (L) with respect to the depilating body (10) and which is provided with at least one hair-catching space (11). The depilating device (1) further comprises an actuating mechanism (30) configured to act on the depilating body (10) so as to cause compression and extension of the depilating body (10) in the longitudinal direction (L) during rotational movement of the depilating body (10) about the rotation axis (R), for the purpose of varying the size of the hair-catching space (11) of the depilating body (10) in the longitudinal direction (L), wherein the actuating mechanism (30) includes a force-inducing member (31) which is compressible and extensible in the longitudinal direction (L) and which has a function in determining the level of a hair-clamping force in the depilating body (10).

Abstract: A two-dimensional force sensor for measuring a first force (FX) in a first direction (X) and a second force (Fy) in a second direction (Y) different from the first direction (X). The two-dimensional force sensor comprises a first resilient plate (H1) oriented in the second direction (Y), a first end of the first resilient plate (H1) being arranged for being coupled to a reference point; a second resilient plate (H2) oriented in the first direction (X), a first end of the second resilient plate (H2) being coupled to a second end of the first resilient plate (H1); and a measurement probe (P) being coupled to a second end of the second resilient plate (H2).

Abstract: A hair styling device comprises an optical radiation source (L) for radiating hair (H), a sensor unit (S) for measuring effects from radiating hair (H), and a feedforward control device for controlling the optical radiation source (L) in dependence on a signal from the sensor unit (S). The optical radiation source (L1, L2) may produce a first flash having a first energy density that may be lower than required for photo-thermal hair reshaping, the optical radiation source being controlled to produce a subsequent flash in dependence on a sensor signal obtained in response to the first flash, which subsequent flash may have at least the first energy density. The sensor unit (S) may include a sensor arranged before the optical radiation source in a hair flow direction.

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: In a hair styling device (20) having a two-dimensional array (21) of elements to bring hair at a styling temperature, the elements produce optical radiation energy. The elements may include one or more LEDs, and preferably a plurality of LEDs, in which case the LEDS are driven in clusters that may be of mutually different shapes and sizes. The hair styling device (20) further comprises sensors to obtain an areal light absorption measurement opposed to the two-dimensional array of elements, and a control unit for individually controlling the elements in dependence of the measurement. The sensors may be arranged for measuring an areal light density profile of a whole treatment area. The hair styling device may radiate hair from two sides, both of which includes an areal light absorption measurement. The sensors may include LEDs that do not produce light.

Abstract: The present disclosure concerns a lighting device (100) and a method of masking an edge transition (15e). An edge structure (15) provides the light with a first edge transition (L1) along a circumference (15e) of the edge structure (15). A patterned layer (11) is provided between the edge structure (15) and the front side (31) of the device. The patterned layer (11) comprises a gradient edge pattern (11g) configured to provide the transmitted light with a second edge transition (L2). The gradient edge pattern (11g) is configured with respect to the circumference (15e) of the edge structure (15) to smoothen the first edge transition (L1). A diffuser (10) is disposed between the front side (31) and the patterned layer (11) for scattering the light of the second edge transition (L2) to smoothen the second edge transition (L2) of the gradient edge pattern (11g).

Abstract: The present disclosure concerns a lighting device (100) comprising a light source (1) and a light guide plate (2). The light guide plate (2) is disposed at a distance (D1) from the emitter surface (1a) with an air gap (3) therebetween. A side reflector (4) surrounds the emitter surface (1a) of the light source and bounds the gap (3) between the emitter surface (1a) and the light entry surface (2a). The side reflector (4) comprises a tapered reflection surface (4a) adjacent the emitter surface (1a) and facing the light entry surface (2a). The tapered reflection surface (4a) is disposed at a tapering angle (?) towards the light entry surface (2a). The tapering angle (?) is configured such that any light emitted by the emitter surface (1a) within the opening angle (?) of the light source (1) is not reflected by the reflection surface (4a) before being received for the first time by the light entry surface (2a).

Abstract: The present disclosure concerns a lighting device (100) and a method of masking an edge transition (15e). An edge structure (15) provides the light with a first edge transition (L1) along a circumference (15e) of the edge structure (15). A patterned layer (11) is provided between the edge structure (15) and the front side (31) of the device. The patterned layer (11) comprises a gradient edge pattern (11g) configured to provide the transmitted light with a second edge transition (L2). The gradient edge pattern (11g) is configured with respect to the circumference (15e) of the edge structure (15) to smoothen the first edge transition (L1). A diffuser (10) is disposed between the front side (31) and the patterned layer (11) for scattering the light of the second edge transition (L2) to smoothen the second edge transition (L2) of the gradient edge pattern (11g).

Abstract: A safety razor apparatus having a blade assembly comprising two guiding members, each having a surface for abutting against the skin, and one or more blades located between the two guiding members (9,10), wherein the cutting edge of each blade and the surfaces are positioned substantially in one plane. The apparatus has a grip portion being pivotal relative to said blade assembly about a pivot axis, wherein the pivot axis is positioned parallel to the cutting edge. A location of the pivot axis is adjustable with respect to the blade assembly.

Abstract: The invention relates to a shaving head (5) comprising at least two bladeshaped cutting members (7, 7?, 7?) each having a straight cutting edge (9, 9?, 9?) extending parallel to a longitudinal direction (Y) of the shaving head. Each cutting member is supported in a cartridge (11) of the shaving head by means of a supporting member (17) which supports the respective cutting member in a supported area (23) on the respective cutting member. Said supported area extends over a predetermined distance (D) perpendicular to the longitudinal direction. Each supporting member has a first portion (25) in contact with the supported area at a location remote from the cutting edge of the respective cutting member and a second portion (27) in contact with the supported area at a location near the cutting edge of the respective cutting member. The first portion has a basic cross-sectional area, seen perpendicularly to the longitudinal direction, and the second portion has a reduced cross-sectional area.

Abstract: The invention relates to a cutting member (7) includes a plate-shaped substrate (19) on which a tip (27) is provided which is bounded by a cutting edge (9). According to the invention, the tip includes an ultimate tip (31) and a basic tip (33), the ultimate tip extending from the cutting edge over a distance d1 and having a profile which at least approximates the equation w=a1.dn1, and the basic tip connecting to the ultimate tip and having a profile which at least approximates the equation w=a.(d+R)n, where w is a profile thickness (in ?m) and d is a distance (in ?m) from the cutting edge (9), and n1 is smaller than n, and a1=a.(d1+R)n/d1n1. In this manner, the profile of the ultimate tip is relatively robust and the profile of the basic tip is relatively slender, as a result of which the cutting member has a comparatively high resistance to wear, and the cutting forces of the cutting member are comparatively small. In one example, n1=n.

Abstract: The invention relates to a cutting member (7) comprising a plate-shaped substrate (19) on which a tip (27) is provided which is bounded by a cutting edge (9). According to the invention, the tip comprises an ultimate tip (31) and a basic tip (33), the ultimate tip extending from the cutting edge over a distance d1 and having a profile which at least approximates the equation w=a1.dn1, and the basic tip connecting to the ultimate tip and having a profile which at least approximates the equation w=a.(d+R)n, where w is a profile thickness (in &mgr;m) and d is a distance (in &mgr;m) from the cutting edge (9), and n1 is smaller than n, and a1=a.(d1+R)n/d1n1. In this manner, the profile of the ultimate tip is relatively robust and the profile of the basic tip is relatively slender, as a result of which the cutting member has a comparatively high resistance to wear, and the cutting forces of the cutting member are comparatively small.