A dental light comprises at least one light emitting diode light source configured to produce a light beam and at least one collimating lens system situated to receive the light beam. The collimating lens system is configured to collect and collimate the light beam. The collimating lens system can additionally modify the beam through controlled diffusion or shape the beam using an aperture.

A dental light comprises at least one light emitting diode light source configured to produce a light beam and at least one collimating lens system situated to receive the light beam. The collimating lens system is configured to collect and collimate the light beam. The collimating lens system can additionally modify the beam through controlled diffusion or shape the beam using an aperture.

The present invention relates to mechanical hair removal. In order to provide a handheld hair removal apparatus with improved detection of fine hair, a handheld hair removal apparatus (10) is provided that comprises a hair removal arrangement (12), a support structure (14) for supporting the hair removal arrangement, and a light source (16) attached to the support structure. During operation, a main movement direction (20) of the apparatus is provided. The hair removal arrangement comprises a skin contact portion (22) extending at least along a primary axis (24) extending perpendicularly to the main movement direction for contacting a user's skin during operation. Further, the light source can be arranged in an operational position (P.sub.O) at a side of the hair removal arrangement in front of the skin contact portion with respect to the main movement direction. Still further, in the operational position the light source provides a light beam (28) with a main propagation axis (30) enclosing an angle of incidence (32) of less than 30° with an imaginary plane (33) extending parallel to the main movement direction and the primary axis.

The present invention relates to mechanical hair removal. In order to provide a handheld hair removal apparatus with improved detection of fine hair, a handheld hair removal apparatus (10) is provided that comprises a hair removal arrangement (12), a support structure (14) for supporting the hair removal arrangement, and a light source (16) attached to the support structure. During operation, a main movement direction (20) of the apparatus is provided. The hair removal arrangement comprises a skin contact portion (22) extending at least along a primary axis (24) extending perpendicularly to the main movement direction for contacting a user's skin during operation. Further, the light source can be arranged in an operational position (P.sub.O) at a side of the hair removal arrangement in front of the skin contact portion with respect to the main movement direction. Still further, in the operational position the light source provides a light beam (28) with a main propagation axis (30) enclosing an angle of incidence (32) of less than 30° with an imaginary plane (33) extending parallel to the main movement direction and the primary axis.

LED related lighting methods and apparatus are described. Various features relate to water tight light fixtures. Some of the fixtures are spotlights while other fixture are intended for in ground use. The light fixtures in at least some embodiments include power control features. In spotlight embodiments beam angle and power or light output can be controlled without opening the light assembly or compromising the water tight seals which also protect against dirt. In ground embodiments support tilt angle setting which allow a user to set the light fixture to one or more tilt angles. Beam angle can also be changed in some embodiments as well as power control. Beam angle, power control and tilt angle adjustments are supported in some embodiments but need not be supported in all embodiments with some embodiments using one or more of the described features but not all features.

LED related lighting methods and apparatus are described. Various features relate to water tight light fixtures. Some of the fixtures are spotlights while other fixture are intended for in ground use. The light fixtures in at least some embodiments include power control features. In spotlight embodiments beam angle and power or light output can be controlled without opening the light assembly or compromising the water tight seals which also protect against dirt. In ground embodiments support tilt angle setting which allow a user to set the light fixture to one or more tilt angles. Beam angle can also be changed in some embodiments as well as power control. Beam angle, power control and tilt angle adjustments are supported in some embodiments but need not be supported in all embodiments with some embodiments using one or more of the described features but not all features.

The disclosed invertible structures rely on combinations of translational movements to effect inversion. An exemplary invertible structure includes a track operable to be slidably coupled to a connector element of a longitudinal structure. In an embodiment, the connector element may include at least two connectors at least partially disposed in a slot defined in the track, which may have a plurality of translational axes for translational movements of the connectors of the longitudinal structure that would effect the inversion of the longitudinal structure.

A foldable device and a foldable fan and a foldable table lamp applicable thereto are provided. The foldable device comprises: a chassis for supporting an electronic device or a small electric device, and a telescopic mechanism of which one end is assembled with the chassis and the other end is assembled with an electronic device or a small electric device. The telescopic mechanism is telescoped to adjust the support height during use, and the telescopic mechanism is retractably received in the chassis during receiving. The foldable device adopting the above technical solution has a simple and compact structure, and the foldable device is mainly applied to an electronic product or a small electric device that needs to be folded and received, and the folded electronic product has a small body shape, which does not occupy space and is easy to be received.

A foldable device and a foldable fan and a foldable table lamp applicable thereto are provided. The foldable device comprises: a chassis for supporting an electronic device or a small electric device, and a telescopic mechanism of which one end is assembled with the chassis and the other end is assembled with an electronic device or a small electric device. The telescopic mechanism is telescoped to adjust the support height during use, and the telescopic mechanism is retractably received in the chassis during receiving. The foldable device adopting the above technical solution has a simple and compact structure, and the foldable device is mainly applied to an electronic product or a small electric device that needs to be folded and received, and the folded electronic product has a small body shape, which does not occupy space and is easy to be received.

A lighting device is disclosed in the present disclosure. The lighting device includes a support assembly, an illuminant assembly, and a switch assembly. The illuminant assembly is connected to the support assembly and capable of being rotated to the support assembly. When the illuminant assembly is rotated to a position at which an angle between the illuminant assembly and the support assembly is less than or equal to a first angle threshold, the switch assembly turns to an on-state. In this way, the lighting device has a function of a switch.