Abstract: Systems and methods for determining lighting fixture arrangement information (e.g., position and/or orientation). A lighting beam from the lighting fixture is directed among three discrete locations on a reference surface (e.g., by a controller). The fixture's position is determined using perspective inversion based on angular changes of the lighting fixture and coordinate data of the discrete locations (e.g., determined using a camera and a reference point on the surface). Distances from the fixture to the three discrete locations are estimated based on perspective inversion. The position of the lighting fixture is trilateralized based on the distances. Spherical coordinates of the fixture's orientation relative to the reference surface are determined, and yaw, pitch, and roll of the fixture are extracted.

Abstract: A system for obtaining a multispectral image of a scene includes a first light source, a second light source, at least one imaging sensor, and a controller. The first light source emits light in a first wavelength range. The second light source emits light in a second wavelength range. The at least one imaging sensor senses light in the first wavelength range reflected off of the scene during a first illumination sensing period and senses light in the second wavelength range reflected off of the scene during a second illumination sensing period. The controller is electrically coupled to the at least one imaging sensor. The controller interprets signals received from the at least one imaging sensor as imaging data, stores the imaging data, and analyzes the imaging data with regard to multiple dimensions. The first illumination sensing period and the second illumination sensing period are discrete time periods.

Abstract: A light fixture is configured to produce an output via a driver circuit to drive an array of LED light sources. Controlling the light fixture includes receiving a first light intensity value related to a light intensity value for the array of LED light sources, determining a first dimming curve based on the first light intensity value and a color temperature value to determine a first value, receiving a second light intensity value related to a light intensity value for the array of LED light sources at which the color temperature value for the output of the light fixture is achieved, wherein the second light intensity value is different than the first light intensity value, determining a second dimming curve based on the second light intensity value and the color temperature value to determine a second value, wherein the second dimming curve is different than the first dimming curve.

Abstract: A method for control of a light fixture, the method including energizing the light fixture to produce a first light output with a first chromaticity and a first spectral power distribution, receiving a user input representative of a desired adjustment of a lighting effect, generating a target spectrum based on the user input, and energizing the light fixture to produce a second light output with the first chromaticity and a second spectral power distribution. The second power distribution approximates the target spectrum.

Abstract: A lighting fixture including a light source including an array of light emitting diodes (LEDs) and a reflector including a input end adjacent the array of LEDs and an output end opposite the input end such that the light source emits light through the reflector from the input end through the output end. The reflector further includes a first, a second, a third, and a fourth sidewall that extend from the input end to the output end. The first and the second sidewalls each include an interior surface, the third and the fourth sidewalls each include an interior surface having a reflectivity that is more diffuse than the interior surfaces of the first and second sidewalls. A lens is adjacent the output end of the reflector.

Abstract: A lighting fixture including a light source having an array of light emitting diodes (LEDs); a reflector having an input end adjacent the array of LEDs and an output end opposite the input end such that the light source emits light through the reflector from the input end through the output end; and a tandem lens array adjacent the output end of the reflector. The tandem lens array includes a first side that faces toward the array of LEDs and a second side that is opposite the first side, wherein the first side includes an array of lenses and the second side includes an array of lenses.

Abstract: A hoist system having a drum primarily self-contained within a batten, for raising and lowering lighting, sound equipment, curtains and the like in a performance environment. The hoist system may be adapted with safety mechanisms including an overload sensor and/or a slack line detector. The system may be provided in the form of a point hoist. The compact system is highly scalable to a variety of spaces and applications, including school and public theaters and concert halls, as well as some homes, private business, etc. Additional features include various cable management systems and trim adjustment mechanisms for use with the hoist system.

Abstract: Methods and systems for generating a lighting design for a venue. A lighting visual is selected. The lighting visual may be based on a different venue or a generated image. An electronic processor converts the lighting visual into lighting visual parameters. The processor receives mounting locations for lighting fixtures at the venue. A database of candidate lighting fixtures is accessed and a lighting design is generated that includes an arrangement of lighting fixtures and indicates which of the lighting fixtures is to be mounted in which location to produce a lighting effect at the venue that approximates the lighting visual. The lighting design may be based on multiple lighting visuals and corresponding visual parameters to produce multiple lighting effects at the venue that approximate the multiple visuals.

Abstract: A lift assembly includes an article to be lifted between a lowered position and a raised position, a drive element coupled to the article, a power mechanism coupled to the drive element, and a power transfer mechanism coupled between the power mechanism and the drive element. The power transfer mechanism includes control electronics having a first upward limit switch adapted to deactivate the power mechanism when the article is lifted to a first upward height, and a second upward limit switch adapted to deactivate the power mechanism when the article is lifted to a second upward height higher than the first upward height.

Abstract: A system for generating a light pulse causes fluorescence in an object. The system includes a light emitting diode (“LED”) light source to emit light onto the object. The light source has an operational radiant flux. The system also includes an imaging sensor to sense light emitted due to fluorescence in the object. The system further includes a controller electrically coupled to the light source. The controller is able to drive the light source to produce a pulse of light at a pulse radiant flux. The controller is also able to inhibit the light source after the pulse for a darkness period. The pulse radiant flux of the light produced by the light source is higher than the operational radiant flux of the light source.

Abstract: Methods and systems are provided for directing a lighting fixture in a venue. A user device is paired with a three-dimensional model space that represents a physical space of the venue. A lighting beam destination is indicated with the user device using a position and an orientation of the user device. The indicated lighting beam destination is converted into coordinates in the three-dimensional model space. A lighting fixture orientation value to direct a lighting beam of the lighting fixture to the lighting beam destination in the physical space of the venue is determined based on the coordinates of the lighting beam destination in the three-dimensional model space of the venue. A motor associated with the lighting fixture is actuated to move the lighting fixture to a lighting fixture orientation in the physical space of the venue based on the lighting fixture orientation values.

Abstract: A light fixture including a light source having an optical axis and a housing having an inner housing and an outer housing. The outer housing pivots on the inner housing and the light source is coupled to the outer housing for pivotal movement with the outer housing relative to the inner housing to move the optical axis relative to the inner housing. A retainer coupled to the housing and a portion of the retainer is movable in a direction toward the outer housing to inhibit movement of the outer housing relative to the inner housing to hold a position of the optical axis.

Abstract: A gobo system for a light fixture. The rotating gobo system including a gobo, a gobo retainer, and a gobo carrier. The gobo retainer is coupled to the gobo and includes a tab. The gobo carrier is coupled to the light fixture. The gobo carrier includes a seat for supporting the gobo and a recess for receiving the tab of the gobo retainer. The gobo retainer is rotatable relative to the gobo carrier between a locked position and an unlocked position.

Abstract: A light fixture including a housing having a longitudinal axis, the housing configured to be received in an aperture of a ceiling. A flange extends from the housing. A clamp is movable relative to the housing and the flange in a direction along the longitudinal axis toward the flange. The clamp includes a first clamping surface and a second clamping surface, the second clamping surface spaced an offset distance from the first clamping surface measured along the longitudinal axis. The first clamping surface is configured to clamp the ceiling between the first clamping surface the flange when the ceiling has a first thickness and the second clamping surface is configured to clamp the ceiling between the second clamping surface and the flange when the ceiling has a second thickness greater than the first thickness.

Abstract: Systems and methods for generating a three-dimensional model of a lighting fixture. The systems include a controller that includes an electronic processor coupled to a memory. The memory is configured to store instructions that when executed by the electronic processor configure the controller to receive first scanning data related to a lighting fixture while the lighting fixture is in a first configuration, receive second scanning data related to the lighting fixture after an adjustment to the lighting fixture to a second configuration, compare the first scanning data and the second scanning data, perform three-dimensional mesh reconstruction based on the first scanning data and the second scanning data, and generate the three-dimensional model based on the first configuration of the lighting fixture and the second configuration of the lighting fixture representing an operational capability of the lighting fixture.

Abstract: Systems and methods for controlling transitions in a lighting system based on a lighting graph. The system includes a light fixture, a controller, and a memory. The controller stores three or more lighting states and associates each with a respective lighting parameter for controlling the light fixture. Multiple input state transition paths and multiple output state transition paths are associated with each lighting state. The controller receives an input signal and determines an output state transition path that indicates a second lighting state of the three or more lighting states. The determination of the transition path is based on a condition or is unconditional. A light control signal is transmitted to the light fixture based on the respective lighting parameter associated with the second lighting state. A lighting state includes all of the parameters to execute the state, or parameters that define a difference from a prior lighting state.

Abstract: A lighting fixture includes a housing, light source, reflector, tandem lens array, shutter blade, and condenser. The housing includes an outlet. An optical axis extends centrally through the outlet. The light source includes an array of light-emitting diodes. The reflector has an input end positioned along the optical axis between the light source and the outlet. The reflector has an output end positioned along the optical axis between the input end and the outlet. The light source emits light from the input end through the output end. The tandem lens array is positioned along the optical axis between the output end and the outlet. The shutter blade is positioned along the optical axis between the tandem lens array and the outlet. The shutter blade is disposed at least partially within the housing. The condenser, including a lens, is positioned along the optical axis between the shutter blade and the outlet.