A combined-type dynamic effect wheel includes a light source and an effect wheel bottom plate. The effect wheel bottom plate is provided with a light-through hole and several pattern bases, each pattern base being provided with a pattern sheet. A first rotating assembly and a second rotating assembly are provided at the center of the effect wheel bottom plate, and the effect wheel bottom plate is driven by the first rotating assembly to rotate so as to enable different pattern bases or the light-through hole to be switched in or out of a light beam; the pattern base is provided with a driven assembly; and the size of an effective pattern on the pattern sheet is greater than the size of an effective light spot of the light beam passing through the pattern sheet.

Methods and apparatus are presented for retaining a dome lens in a lighting element that provides a projection of light forming a substantially uniform bright light on a surface a known distance from the lighting element. The lighting element includes a dome lens that is removably positioned proximal to a light source, such that the light source is retained at a location within a focal length of a projection lens and at or within a focal length of the dome lens. The dome lens magnifies the light outputted by the light source, such that the projected light is brighter than the light generated by the light source.

An adjustable carrier structure for a lamp is described. Said adjustable carrier structure comprises an optical component carrier on which an optical component may be fastened, a coupling device for fastening the carrier structure on the lamp, and at least one threaded spindle. The latter comprises a first threaded spindle end that is mounted in an axially-fixed and non-rotatable manner on the optical component carrier, and is connected to the coupling device via a threaded socket that cooperates with the threaded spindle. In this case, the threaded socket is connected to the coupling device in an axially-fixed and rotatable manner. The threaded spindle extends essentially parallel to an optical axis of the adjustable carrier structure. A distance may be set between the first threaded spindle end and the coupling device by means of rotating the threaded socket. Moreover, a lamp having a carrier structure of this type is proposed.

A portable light and assembly method may comprise: a light body supporting a source of electrical power and a light head having a light source that produces light. A rotating joint may include: a hollow cylindrical central member extending from one of the light body and the light head in a cylindrical bore of complementary size and shape in the other of the light body and the light head, a fastener retaining the hollow cylindrical member in the cylindrical bore, and one or more electrical conductors extending through the hollow cylindrical member of the rotating joint to connect the source of electrical power to the light source. A hinged cover has a latch including an arm member engaging a feature of the light body or including a thumb screw engaging a threaded hole of the light body, to retain the closed cover against the light body.

Methods and apparatus are presented for retaining a dome lens in a lighting element that provides a projection of light forming a substantially uniform bright light on a surface a known distance from the lighting element. The lighting elements includes a dome lens that is removably positioned proximal to a light source, such that the light source is retained at a location within a focal length of a projection lens and at or within a focal length of the dome lens. The dome lens magnifies the light outputted by the light source, such that the projected light is brighter than the light generated by the light source.

An adjustable carrier structure for a lamp is described. Said adjustable carrier structure comprises an optical component carrier on which an optical component may be fastened, a coupling device for fastening the carrier structure on the lamp, and at least one threaded spindle. The latter comprises a first threaded spindle end that is mounted in an axially-fixed and non-rotatable manner on the optical component carrier, and is connected to the coupling device via a threaded socket that cooperates with the threaded spindle. In this case, the threaded socket is connected to the coupling device in an axially-fixed and rotatable manner. The threaded spindle extends essentially parallel to an optical axis of the adjustable carrier structure. A distance may be set between the first threaded spindle end and the coupling device by means of rotating the threaded socket. Moreover, a lamp having a carrier structure of this type is proposed.

A soft robotic instrument that is capable of changing its form factor (e.g., expanding and contracting) during use to facilitate minimally invasive surgery. The instrument may be formed wholly or partly of an elastomeric, electrically insulating material for mitigating the risk of injuring tissue and for mitigating the risk of electrical arcing during electrosurgery.

A soft robotic instrument that is capable of changing its form factor (e.g., expanding and contracting) during use to facilitate minimally invasive surgery. The instrument may be formed wholly or partly of an elastomeric, electrically insulating material for mitigating the risk of injuring tissue and for mitigating the risk of electrical arcing during electrosurgery.

The present disclosure discloses a rotary type star projection lamp with an audio playing and atmosphere set-off functions, and belongs to the technical field of star projection lamps. The rotary type star projection lamp includes a lamp house and a base, wherein a top end of the lamp house is connected with a cover plate; the cover plate is provided with a star lampshade and two cloud lampshades; a side wall of an inner bottom of the lamp house is connected with a drive motor; an output end of the drive motor is connected with a chain wheel assembly through a drive shaft; and a star light scattering sheet and two cloud light scattering sheets are respectively arranged above the chain wheel assembly.

Disclosed is a flashlight which may include of a first window arranged at a first end of the flashlight, a light source configured to generate light, a first reflector configured to reflect light from the light source to the first window to generate a first beam of light, and a second reflector configured to reflect stray light from the light source through one of a first aperture and a first gap in the first reflector to generate a second beam of light leaving the flashlight through a second window.