The invention relates to an illumination device comprising a group of first light sources, a plurality of optical lenses, a plurality of beam generating elements, where each of the beam generating elements is configured to collect the light of at least one first light source to generate a light beam of the collected light and to pass the generated light beam to one of the optical lenses, a group of second light sources, and a plurality of shielding elements, where each shielding element is arranged between at least one of the second light sources and one of the plurality of optical lenses in such a way that said at least one of the second light source illuminates only one of the plurality of optical lenses.

A light unit configured to emit at least one wide-aperture light beam including a transmitter system, configured to emit at least one light beam, the beam(s) being emitted in an angular range of 360° around the transmitter system; a reflector system surrounding the transmitter system, arranged to receive each light beam propagating from the transmitter system and to reflect each light beam received towards the outside of the light unit. The reflector system includes a frame surrounding the transmitter system and bearing a reflecting surface extending around the transmitter system between two opposite edges of the frame, the reflector system and/or the transmitter system are mounted such that they can be moved relative to one another and such that they can be positioned relative to one another so as to modify the interception area of the beam emitted by the transmitter system along the reflecting surface of the reflector system.

A film and television lamp is provided by embodiments of the present disclosure, comprising: a housing assembly, wherein the housing assembly is provided with a cavity, the housing assembly comprises a first housing, the first housing comprises a first ventilation area, a second ventilation area and shelter structure between the first ventilation area and the second ventilation area; a circuit board assembly, wherein the circuit board assembly is provided in the cavity and in correspondence with the shelter structure; a heat dissipating assembly, wherein the heat dissipating assembly is provided in the cavity, and the heat dissipating assembly comprises a first radiator and a second radiator, the first radiator is connected with the second radiator. The present disclosure aims to solve technical problems in the prior art that heat dissipation and waterproof in the film and television lamp cannot be both achieved.

A lighting device is disclosed with excitation light source(s) for emitting excitation light along an excitation light path; a wavelength conversion assembly including wavelength conversion element(s) for converting the excitation light into conversion light and emitting it into the same half-space from which the excitation light is radiated onto the surface of the element, and reflection element(s) for reflecting, in unconverted fashion, the excitation light intermittently radiated onto the reflection element from the source(s) along the portion of the excitation light path onto a reflection light path as reflection light; and a dichroic mirror for deflecting the excitation light coming from the source(s) onto the portion of the excitation light path on which the excitation light is radiated onto the wavelength conversion element(s) or the reflection element(s). The mirror is configured such that the conversion light is transmitted through the mirror and the reflection light is guided past the mirror.

A lighting effect adjustment system includes a light source module, and a focusing module, a magnification module and a light output lens that are arranged in sequence along a beam projection direction of the light source module. The focusing module, the magnification module and the light output lens are mounted on a stage light holder, The focusing module and the magnification module are independently slidable in a light path direction. An effect module is further slidably arranged between the focusing module and the light output lens. The effect module includes one or more effect sheets configured to be switched into and out from a light path, and motions of the effect module and the magnification module are independent without interference with each other.

A theatrical lighting apparatus including a plurality of light sources including a first light source and a second light source; and a plurality of reflector segments including first and second reflector segments; wherein the plurality of light sources are centrally located between the plurality of reflector segments; wherein each of the plurality of reflector segments has a focal point; wherein the first light source is located approximately the focal point of the first reflector segment; and wherein the second light source is located approximately the focal point of the second reflector segment. The plurality of light sources may include at least one white light emitting diode light source. The plurality of light sources may be fixed to a single heat exchanger centrally located between the plurality of reflector segments. The heat exchanger may be configured to be moved relative to the plurality of reflector segments by an actuator.

The present disclosure discloses a light source device. The light source device comprises a light source array configured to emit an excitation light; a phosphor sheet arranged in a propagation direction of the excitation light and configured to receive the excitation light to emit an excited unsaturated amber light; and a cutoff filter arranged along a propagation direction of the unsaturated amber light and configured to filter the unsaturated amber light to obtain a saturated amber light.

A capacitance type rotation angle detection stage light includes a pivoting member and a supporting member for supporting the pivoting member. A reflecting grating is attached on the pivoting member, and the reflecting grating rotates along with the pivoting member. A signal grating is attached on the supporting member. The signal grating and the reflecting grating are arranged oppositely. The signal grating comprises capacitance emitting pieces, a capacitance receiving piece and shielding pieces. The reflecting grating comprises capacitance reflecting pieces that reflect signals sent from the capacitance emitting pieces to the capacitance receiving piece. Periodic excitation signals applied to the capacitance emitting pieces finally form a composite signal on the capacitance receiving piece through coupling of two pairs of capacitors that the capacitance emitting pieces and the capacitance reflecting pieces, and the capacitance reflecting pieces and the capacitance receiving piece.

The present invention is directed to an apparatus for providing a light reflector, light fixture, light fixture retrofit apparatus, lamp reflector, lamp retrofit apparatus or luminaire reflector retrofit. According to an example embodiment of the disclosed invention, a light reflector is provided that includes annular segments nested as cone-shaped layers configured for reflecting light from a light source placed in proximity to the inner cone portion. The two or more nested cone-shaped annular segments include a reflective surface. The cone-shaped annular segments are configured such that the segment layer having the smallest aperture is located farthest from the light source.

A stage light having an effect element made of a ceramic material comprises a light source, an effect element, and a driving component connected to the effect element. The light emitted by the light source forms a light beam, the effect element is made of a ceramic material, and the driving component drives the effect element to rotate or move relative to the light beam so as to enable the light beam to generate a corresponding lighting effect. The stage light having an effect element made of a ceramic material has abundant effects by the effect element made of a ceramic material. Since ceramic is less susceptible to thermal deformation and has a higher temperature resistance than metal, making the effect element with a ceramic material can effectively reduce thermal deformation and cracking, thereby prolonging the service life of the effect element.