Abstract: A zoom optical system includes a light source and focus, zoom, and fixed lens groups. The light source illuminates an object in or adjacent to an object plane. The focus lens group has a first positive optical power and moves to focus an object. The focus lens group has four lenses of positive, positive, positive, and negative optical power. The zoom lens group has a negative optical power and moves relative to the object plane and the focus lens group to control a beam angle while the focus lens group remains fixed relative to the object plane. The zoom lens group comprises two negative power lenses. The fixed lens group has a second positive optical power, remains in a fixed position relative to the object plane, and projects an image of the object. The fixed lens group has three lenses, comprising negative, positive, and positive optical powers.

Abstract: A luminaire includes a light source configured to generate an emitted light beam, and a beam reducer configured to move between a first position and a second position. In the first position, the beam reducer is outside the emitted light beam, and in the second position, the beam reducer receives the emitted light beam and occludes an outer portion of the emitted light beam to emit a reduced light beam having a smaller beam angle than the emitted light beam. The luminaire also includes an imaging subsystem configured to receive (i) the emitted light beam when the beam reducer is in the first position and (ii) the reduced light beam when the beam reducer is in the second position. The beam reducer is configured to move to the second position in response to a position of the imaging subsystem.

Abstract: An automated luminaire and method are provided. The automated luminaire includes a range sensing module and a control system. The range sensing module calculates a distance to a closest object in a direction that the automated luminaire is pointed. The control system reduces a beam power density of a light beam emitted from the automated luminaire when the distance is less than a threshold distance. The method includes determining whether an emitted beam power determinant of the automated luminaire has changed; if so, calculating a threshold distance from current values of one or more beam power determinants; determining whether the distance to the closest object is greater than the threshold distance; and, if not, reducing the beam power density of the light beam emitted from the automated luminaire.

Abstract: A luminaire including an LED light source, a plurality of color filters, an optical device, and a control system is provided. In response to receiving an optical device setting value via a data link, the control system moves the optical device according to the setting value; calculates a numeric value for a color change associated with the optical device setting value by calculating a position change value for at least one color filter, the position change value based on the optical device setting value; for the at least one color filter, calculates a modified color filter position based on the position change value and a current color filter position of the at least one color filter and causes the at least one color filter to move to the modified color filter position.

Abstract: A luminaire includes a light source configured to generate an emitted light beam, and a beam reducer configured to move between a first position and a second position. In the first position, the beam reducer is outside the emitted light beam, and in the second position, the beam reducer receives the emitted light beam and occludes an outer portion of the emitted light beam to emit a reduced light beam having a smaller beam angle than the emitted light beam. The luminaire also includes a beam size iris configured to receive (i) the emitted light beam when the beam reducer is in the first position and (ii) the reduced light beam when the beam reducer is in the second position. The beam reducer is configured to move to the second position in response to an aperture of the beam size iris being smaller than a predetermined threshold value.

Abstract: A luminaire includes a light emitter, an asymmetric lens, and a mechanism. The light emitter includes an exit aperture and emits a light beam having an optical axis. The asymmetric lens receives the light beam and projects a projected beam. The mechanism rotates the light emitter about an axis of rotation passing through the exit aperture, thereby moving a point of entry of the light beam into the asymmetric lens. A size and location of a hot-spot of the projected beam varies as the point of entry of the light beam into the asymmetric lens moves. The asymmetric lens includes a long axis, a short axis, and an asymmetric surface, which has a long axis parallel to the long axis of the asymmetric lens. The asymmetric surface is asymmetric in a cross-section taken in a plane perpendicular to the short axis of the asymmetric lens.

Abstract: An optical system includes a light source, a lens, and a light effect ring. The lens has first and second surfaces and receives a first light beam from the light source at the first surface and emits a second light beam from the second surface. The light effect ring includes a first plurality of light emitters emitting second light beams that obliquely illuminate the first surface of the lens and a second plurality of emitters that emit third light beams through the lens. The light effect ring may include a plurality of segments that move into and out of the first light beam, where each segment includes a first subset of the first plurality of light emitters and a second subset of the second plurality of emitters.

Abstract: A luminaire including an LED light source, a plurality of color filters, an optical device, and a control system is provided. In response to receiving an optical device setting value via a data link, the control system moves the optical device according to the setting value, calculates modified positions for one or more of the color filters based on an effect of the optical device on the color of the light beam of the luminaire, and causes the one or more color filters to move to their modified color filter positions, in order to reduce the effect of the optical device on a beam color emitted by the luminaire.

Abstract: A system includes a luminaire having a head configured for rotation relative to a fixed enclosure of the luminaire. The head includes a camera access port. The system also includes a camera module configured to be removably mounted to the camera access port of the luminaire, and a cover plate configured to be removably mounted to the luminaire head to cover the camera access port. A weight of the cover plate approximately matches a weight of the camera module.

Abstract: A luminaire includes a light source configured to generate an emitted light beam, and a beam reducer configured to move between a first position and a second position. In the first position, the beam reducer is outside the emitted light beam, and in the second position, the beam reducer receives the emitted light beam and occludes an outer portion of the emitted light beam to emit a reduced light beam having a smaller beam angle than the emitted light beam. The luminaire also includes a beam size iris configured to receive (i) the emitted light beam when the beam reducer is in the first position and (ii) the reduced light beam when the beam reducer is in the second position. The beam reducer is configured to move to the second position in response to an aperture of the beam size iris being smaller than a predetermined threshold value.

Abstract: An automated luminaire and method are provided. The automated luminaire includes a range sensing module and a control system. The range sensing module calculates a distance to a closest object in a direction that the automated luminaire is pointed. The control system reduces a beam power density of a light beam emitted from the automated luminaire when the distance is less than a threshold distance. The method includes determining whether an emitted beam power determinant of the automated luminaire has changed; if so, calculating a threshold distance from current values of one or more beam power determinants; determining whether the distance to the closest object is greater than the threshold distance; and, if not, reducing the beam power density of the light beam emitted from the automated luminaire.

Abstract: A luminaire includes a light source emitting a first light beam with a first optical axis. An optical element of the light source alignment system receives the first light beam and emits a second light beam with a second optical axis. The second optical axis is substantially parallel to, but not coaxial with, the first optical axis. A continuously adjustable position of the optical element determines a position of the second optical axis. A method for aligning an optical axis of a light beam includes receiving a first light beam with a first optical axis; emitting a second light beam with a second optical axis that is substantially parallel to, but not coaxial with, the first optical axis; and aligning the second light beam with an optical element of an optical system by adjusting a continuously adjustable position of an optical element relative to the first optical axis.

Abstract: An optical system includes a light source, a lens, and a light effect ring. The lens has first and second surfaces and receives a first light beam from the light source at the first surface and emits a second light beam from the second surface. The light effect ring includes a first plurality of light emitters emitting second light beams that obliquely illuminate the first surface of the lens and a second plurality of emitters that emit third light beams through the lens. The light effect ring may include a plurality of segments that move into and out of the first light beam, where each segment includes a first subset of the first plurality of light emitters and a second subset of the second plurality of emitters.

Abstract: A zoom optical system includes a light source and focus, zoom, and fixed lens groups. The light source illuminates an object in or adjacent to an object plane. The focus lens group has a first positive optical power and moves to focus an object. The focus lens group has four lenses of positive, positive, positive, and negative optical power. The zoom lens group has a negative optical power and moves relative to the object plane and the focus lens group to control a beam angle while the focus lens group remains fixed relative to the object plane. The zoom lens group comprises two negative power lenses. The fixed lens group has a second positive optical power, remains in a fixed position relative to the object plane, and projects an image of the object. The fixed lens group has three lenses, comprising negative, positive, and positive optical powers.

Abstract: A luminaire and LED light engine are provided. The luminaire includes the LED light engine and an optical device. The LED light engine includes an LED array and a partial diffuser. The partial diffuser diffuses light that is emitted by LEDs of a selected first subset of LEDs in the LED array and leaves undiffused light that is emitted by LEDs of a second subset of LEDs in the LED array. At least some LEDs are selected for inclusion in the first subset as emitting light that produces poorly blended colors in a light beam emitted by the LED array. The optical device is configured to receive a light beam emitted from the LED light engine and emit a modified light beam.

Abstract: An optical system and luminaire are provided. The optical system includes first and second lighting effect assemblies. Each lighting effect assemblies include an effect selector and a lighting effect insert rotatably coupled thereto. Each effect selector positions its lighting effect insert in a light beam. The lighting effect inserts include a prism with a rear surface and a front side having a first plurality of facets. The rear surface has a plurality of regions aligned with corresponding facets. The regions are color filters. Some lighting effect inserts are an effects plate and a prism, where the effects plate has color filter regions. The effects plate and the prism may be separately rotatable at desired speeds and/or directions. Some lighting effect inserts are a prism with color filter regions on the facets.

Abstract: A luminaire includes a light emitter, an asymmetric lens, and a mechanism. The light emitter includes an exit aperture and emits a light beam having an optical axis. The asymmetric lens receives the light beam and projects a projected beam. The mechanism rotates the light emitter about an axis of rotation passing through the exit aperture, thereby moving a point of entry of the light beam into the asymmetric lens. A size and location of a hot-spot of the projected beam varies as the point of entry of the light beam into the asymmetric lens moves. The asymmetric lens includes a long axis, a short axis, and an asymmetric surface, which has a long axis parallel to the long axis of the asymmetric lens. The asymmetric surface is asymmetric in a cross-section taken in a plane perpendicular to the short axis of the asymmetric lens.

Abstract: A lens assembly and luminaire are provided. The luminaire includes a head comprising the lens assembly, where the lens assembly includes a lens holder, a Fresnel lens, and a homogenizing lens. The Fresnel lens is physically coupled to the lens holder and includes a smooth rear face and a front face comprising annular facets. The homogenizing lens is physically coupled to the lens holder and optically coupled to the Fresnel lens. The homogenizing lens includes a rear face comprising a homogenizing optical structure and the rear face of the homogenizing lens faces the front face of the Fresnel lens.

Abstract: An optical system and luminaire are provided. The optical system includes first and second lighting effect assemblies. Each lighting effect assemblies include an effect selector and a lighting effect insert rotatably coupled thereto. Each effect selector positions its lighting effect insert in a light beam. The lighting effect inserts include a prism with a rear surface and a front side having a first plurality of facets. The rear surface has a plurality of regions aligned with corresponding facets. The regions are color filters. Some lighting effect inserts are an effects plate and a prism, where the effects plate has color filter regions. The effects plate and the prism may be separately rotatable at desired speeds and/or directions. Some lighting effect inserts are a prism with color filter regions on the facets.

Abstract: A luminaire is provided that includes an LED light engine emitting a light engine light beam and one or more optical devices configured to receive the light engine light beam and form a luminaire light beam emitted by the luminaire. The LED light engine includes an array of LED emitters mounted on a substrate, an array of lenses optically coupled to the array of LED emitters, and a plurality of filter regions. The filter regions of the plurality of filter regions are optically coupled to and fixedly mounted relative to the array of LED emitters. Each filter region of the plurality of filter regions is aligned with an associated LED of the array of LED emitters and is configured to filter substantially only light emitted by the associated LED.