Abstract: According to various embodiments, a light emitting apparatus is disclosed. In one example, the light emitting apparatus comprises a light source arranged to emit light of a first wavelength onto a wavelength converting member. The wavelength converting member comprises a wavelength converting element arranged to convert the light of the first wavelength into light of the second wavelength, a reflective heat conducting element arranged to reflect light of the second wavelength, and a beam shaping heat conducting element arranged to transmit light of the first wavelength and of the second wavelength, wherein the beam shaping heat conducting element is arranged to direct light of the first wavelength and of the second wavelength with an angular distribution within a collection angle of the collecting lens. The wavelength converting element is in direct thermal contact with the beam shaping heat conducting element and in thermal contact with the reflective heat conducting element.

Abstract: A laser sensor module for detecting a particle density of particles, which includes: a laser; a detector; and a mirror. The laser is arranged to emit a laser beam to the mirror. A movement of the mirror is arranged to redirect the laser beam. The laser beam is displaced with respect to a rotation axis of the mirror such that a focus region of the laser beam is moving with a velocity having components normal and parallel to the optical axis of the redirected laser beam such that an angle between the parallel and the normal velocity component is at least a threshold angle of 2°. The detector is arranged to determine a self mixing interference signal of an optical wave within a laser cavity of the laser, the self mixing interference signal being generated by laser light of the laser beam reflected by at least one of the particles.

Abstract: A laser sensor for detecting a particle density includes: a laser configured to emit a measurement beam, an optical arrangement being arranged to focus the measurement beam to a measurement volume, the optical arrangement having a numerical aperture with respect to the measurement beam, a detector configured to determine a self-mixing interference signal of a optical wave within a laser cavity of the laser, and an evaluator. The evaluator is configured to: receive detection signals generated by the detector in reaction to the determined self-mixing interference signal, determine an average transition time of particles passing the measurement volume in a predetermined time period based on a duration of the self-mixing interference signals generated by the particles, determine a number of particles based on the self-mixing interference signals in the predetermined time period, and determine the particle density based on the average transition time and the number of particles.

Abstract: A laser sensor module for detecting a particle density of small particles with a particle size between 0.05 ?m and 10 ?m includes a first laser configured to emit a first measurement beam, a second laser configured to emit a second measurement beam, and an optical arrangement configured to focus the first measurement beam to a first measurement volume and to focus the second measurement beam to a second measurement volume. The optical arrangement includes a first numerical aperture and a second numerical aperture arranged to detect a predetermined minimum particle size. The laser sensor module further includes a first detector configured to determine a first self-mixing interference signal of a first optical wave, a second detector configured to determine a second self-mixing interference signal of a second optical wave, and an evaluator.

Abstract: The invention describes a laser sensor or laser sensor module (100) using self-mixing interference for particle density detection, a related method of particle density detection and a corresponding computer program product. The invention further relates to devices comprising such a laser sensor or laser sensor module. It is a basic idea of the present invention to detect particles by means of self-mixing interference signals and determine a corresponding particle density. In addition at least a first parameter related to at least one velocity component of a velocity vector of the particles is determined in order to correct the particle density if there is the relative movement between a detection volume and the particles. Such a relative movement may for example be related to a velocity of a fluid transporting the particles (e.g. wind speed). Furthermore, it is possible to determine at least one velocity component of the velocity of the particles based on the self-mixing interference signals.

Abstract: The invention describes a laser sensor module (100) which is adapted to detect or determine at least two different physical parameters by means of self-mixing interference by focusing a laser beam to different positions. Such a laser sensor module (100) may be used as an integrated sensor module, for example, in mobile devices (250). The laser sensor module (100) may be used as an input device and in addition as a sensor for detecting physical parameters in an environment of the mobile communication device (250). One physical parameter in the environment of the mobile communication device (250) may, for example, be the concentration of particles in the air (air pollution, smog . . . ). The invention further describes a related method and computer program product.

Abstract: The present invention relates to a consumable recognition system for recognizing placement and/or type of consumable containing a food substance for the preparation of a beverage by use of a beverage dispenser. To enable the recognition of placement and/or type of consumable in a simple, foolproof and easily implementable way an embodiment of the system comprises a light source (31, 301, 311, 321, 331, 341) for emitting light (35) to the consumable (4a, 40, 50, 60, 70, 80, 90), a light sensor (32 302, 312, 322, 332, 342) for sensing light (36) reflected from a reflection element (42, 52, 63, 73, 83, 93) of the consumable to obtain a sensor signal, wherein the sensor signal depends on the position, orientation, fluorescence, phosphorescence and/or polarization characteristic of said reflection element, and a signal processor (33) for recognizing placement and/or type of consumable based on said sensor signal.

Abstract: An inspection substrate for inspecting a component of an apparatus for processing production substrates, the inspection substrate has: a body having dimensions similar to the production substrates so that the inspection substrate is compatible with the apparatus; an illumination device embedded in the body, the illumination device configured to emit radiation toward a target area of the component of the apparatus; an imaging device embedded in the body, the imaging device configured to detect radiation scattered at the target area and generate an image from the detected radiation, wherein the illumination device is configured to emit the radiation such that radiation that is specularly reflected at the target area does not contribute to the image generated by the imaging device.

Abstract: There is provided a cutting element for use in a hair cutting device. The cutting element comprises an optical waveguide having a sidewall which is substantially parallel to the longitudinal axis of the optical waveguide, wherein a portion of the sidewall forms a cutting face for contacting hair. The cutting face has a structure comprising a plurality of indentations configured to allow light to couple out through the sidewall to increase the amount of light able to couple to hair. A hair cutting device comprising a light source and the cutting element is also provided.

Abstract: An optical device is provided. The optical device comprises a light converting member arranged to at least party convert incoming light of a first wavelength into light of a second wavelength, to emit light of the second wavelength, and to reflect at least a part of the light of the first wavelength; and a light guide comprising a light entrance and a light exit, the light guide being arranged to guide incoming light of the first wavelength from the light entrance to the light converting member and to guide light emitted and/or reflected from the light converting member to the light exit. The light converting member and the light exit are at opposite surfaces of the light guide. The light converting member and the light exit are arranged along a main optical axis of the light guide, and the light entrance is arranged at a geometrical envelope surface surrounding the main optical axis of the light guide.

Abstract: An inspection substrate for inspecting a component of an apparatus for processing production substrates, the inspection substrate has: a body having dimensions similar to the production substrates so that the inspection substrate is compatible with the apparatus; an illumination device embedded in the body, the illumination device configured to emit radiation toward a target area of the component of the apparatus; an imaging device embedded in the body, the imaging device configured to detect radiation scattered at the target area and generate an image from the detected radiation, wherein the illumination device is configured to emit the radiation such that radiation that is specularly reflected at the target area does not contribute to the image generated by the imaging device.

Abstract: The present invention relates to a light emitting apparatus comprising, an element (104) arranged to convert light of a first wavelength (110) into light of a second wavelength (112), emit the light of the second wavelength (112), and to reflect light of the first wavelength (110), a reflector (106) arranged to reflect light of the first wavelength (110), and transmit light of the second wavelength (112), a light source (102) emitting light of the first wavelength (110) on the reflector (106) such that the reflected light of the first wavelength (110) is directed towards the element (104), a lens (108) arranged to focus light of the first wavelength (110) reflected by the reflector (106) onto the element (104), and to collect light emitted and reflected from the element (104), wherein the element (104) is arranged to emit light of the second wavelength (112) with an angular distribution (116) within a collection angle of the lens (108), wherein the element (104) is further arranged to reflect light of the fir

Abstract: The invention describes a laser sensor module. The laser sensor module comprises at least one laser (100) being adapted to emit a measurement beam (111). The laser sensor module further comprises a compact optical device (150) being arranged to focus the measurement beam (111) to a focus region (115). The compact optical device comprises an optical carrier (154) with a convex mirror surface (152) on one side and a concave mirror surface (156) on a second opposite side, wherein the concave mirror surface (156) comprises an entrance surface through which the measurement beam (111) can enter the optical carrier (154). The compact optical device (150) is arranged such that the measurement beam (111) entering the optical carrier is reflected and diverged by means of the convex mirror surface (152) to the concave mirror surface (156). The concave mirror surface (156) is arranged to focus the measurement beam (111) received from the convex mirror surface (152) to a focus region (115).

Abstract: A white light source (100) comprising a first light source (102) adapted to emit first light, a reflecting wavelength converting element (108) arranged to receive first light from the first light source (102) and at least partly convert it to converted light, and a second light source (104) adapted to emit blue light which in use combines with the converted light to generate white light. The white light source further comprises a beam shaping element (116) adapted to adjust the intensity profile of the blue light emitted by the second light source (104) to match the intensity profile of the converted light. Thereby, a white light source (104) which generates a high intensity uniform white light with a desired color distribution is provided.

Abstract: A fiber assembly (60) for capnography or oxygraphy employing an housing (61), a collimator (64), a retroreflector (67) and a single mode optical fiber (63). Housing (61) including a respiratory gas detection chamber (62). Collimator (64) is rigidly disposed within or detachably attached to housing (61), and retroreflector (67) is rigidly disposed within or detachably attached to housing (61). Collimator (64) and retroreflector (67) are optically aligned within housing (61) across respiratory gas detection chamber (62). Optical fiber (63) is optically aligned with collimator (64) within or external to the housing (61). In operation, optical fiber (63) emits a gas sensing light beam through collimator (64) across respiratory gas detection chamber (62) to retroreflector (67), and optical fiber (63) receives a gas detection light beam reflected from retroreflector (67) across respiratory gas detection chamber (62) through collimator (64) to optical fiber (63).

Abstract: A color point variable light emitting apparatus is provided. The color point variable apparatus comprises a member comprising a wavelength converting element and a non-wavelength converting element, the wavelength converting element is arranged to convert light of a first wavelength into light of a second wavelength and emit the light of the second wavelength, and the non-wavelength converting element is arranged to redirect light of the first wavelength, a light source having a controllable optical element, the light source is arranged to, with light of a first wavelength, illuminate both a portion of the wavelength converting element and a portion of the non-wavelength converting element, and a controller arranged to control the controllable optical element such that a ratio of the portion of the wavelength converting element and the portion of the non-wavelength converting element illuminated by the light source is changed. A method for varying color point of light is further provided.

Abstract: The invention describes a laser sensor module (100) which is adapted to detect or determine at least two different physical parameters by means of self-mixing interference by focusing a laser beam to different positions. Such a laser sensor module (100) may be used as an integrated sensor module, for example, in mobile devices (250). The laser sensor module (100) may be used as an input device and in addition as a sensor for detecting physical parameters in an environment of the mobile communication device (250). One physical parameter in the environment of the mobile communication device (250) may, for example, be the concentration of particles in the air (air pollution, smog . . . ). The invention further describes a related method and computer program product.

Abstract: The present invention relates to a light emitting apparatus. The apparatus comprises a high intensity light source configured to emit light of a first wavelength; a beam shaping optical element configured to redistribute the light of the first wavelength emitted by the high intensity light source into an outgoing light beam having a far field beam cross sectional profile having a spatially flat light distribution; and a light converting member configured to be exposed to the outgoing light beam having the spatially flat light distribution, to convert at least a portion of the light of the first wavelength into light of a second wavelength, and to emit the light of the second wavelength.

Abstract: An optical device is provided. The optical device comprises a light converting member arranged to at least party convert incoming light of a first wavelength into light of a second wavelength, to emit light of the second wavelength, and to reflect at least a part of the light of the first wavelength; and a light guide comprising a light entrance and a light exit, the light guide being arranged to guide incoming light of the first wavelength from the light entrance to the light converting member and to guide light emitted and/or reflected from the light converting member to the light exit. The light converting member and the light exit are at opposite surfaces of the light guide. The light converting member and the light exit are arranged along a main optical axis of the light guide, and the light entrance is arranged at a geometrical envelope surface surrounding the main optical axis of the light guide.

Abstract: An apparatus (100, 100?) is configured such that passage of a fluid (30) through an open port of a distal tip (112, 112?) enables detection of a substance (116) that may be present on a surface (31, 33), e.g., a surface of a tooth, based on measurement of a signal correlating to a substance at least partially obstructing the passage of fluid (30) through the open port. The apparatus (100, 100?) includes a proximal pump portion (124) and at least one distal probe portion (110) configured to be immersed in another fluid (11), e.g., water in toothpaste foam. A corresponding system (3000) includes one or two such apparatuses (3100, 3200). A method of detecting the presence of a substance on a surface includes probing an interaction zone (17) for at least partial obstruction of flow of the second fluid medium (30) through a distal probe tip.