Abstract: A medical illumination system is provided for modulating properties of light emitted by a light source of the illumination system based on properties of a spot size defining an area illuminated by the emitted light.

Abstract: A phototherapy system and spectral absorption measurement device are provided for adjusting parameters used to generate phototherapeutic light by determining a tissue's spectral absorption characteristics by employing detector assemblies that analyze the tissue's effect on specific wavelengths of light.

Abstract: A phototherapy apparatus is provided for delivering light to an infant. The phototherapy apparatus includes a light source sheet having light emitters that are electrically isolated from the external environment using an isolating covering. Light from the light emitters is diffused by a spacing layer before being emitted from the spacing layer.

Abstract: The present disclosure provides a controller for modulating phototherapeutic treatment of inflammatory conditions by modulating electromagnetic radiation output from a phototherapy apparatus based on respiratory data from a respiration sensor. The controller modulates a property of the electromagnetic radiation emitted by the light source based on the received respiratory data, such that at least one of: the phototherapy is decreased in response to a positive trend in the respiratory data or the phototherapy is increased in response to a negative trend in the respiratory data.

Abstract: The present disclosure provides a method and control circuitry for controlling light output from a light emitting diode (LED). Light output is controlled based on a measured temperature of a junction of the LED. An electrical current is supplied to the LED based on the measured temperature, such that the light emitting diode outputs a desired optical output.

Abstract: The present disclosure provides a method for treating ischemic stroke by illuminating a skin surface to reduce free radical generation in subsurface target tissues (e.g., the brain following an ischemic event). The method utilizes a waveguide that receives light from a light source. The waveguide is placed adjacent a skin surface of a patient and the waveguide emits light that passes through the skin surface and illuminates a subsurface target tissue. The waveguide includes light-extracting features configured to emit light at a target angle relative to the surface tissue. That is, the light-extracting features alter a trajectory of light emitted by the waveguide, such that a larger percentage of light emitted by the light guide has an angle that is +/?25 degrees off of a center line of the light guide.

Abstract: A light guide spacer is provided for maintaining sufficient spacing between a diffuser and a light emitting surface of a light guide. The light guide spacer maintaining spacing between the diffuser and the light guide has the exemplary benefit of providing more uniform light emission from the light emitting surface and protecting the light emitting surface (e.g., from physical damage, cleaning solutions, etc.). The light guide spacer may span the length of the light guide and diffuser, maintaining spacing along a length of the light guide, providing mounting of the diffuser and light guide, and maintaining a position of the diffuser, such that it protects the light emitting surface of the light guide.

Abstract: A light guide spacer is provided for maintaining sufficient spacing between a diffuser and a light emitting surface of a light guide. The light guide spacer maintaining spacing between the diffuser and the light guide has the exemplary benefit of providing more uniform light emission from the light emitting surface and protecting the light emitting surface (e.g., from physical damage, cleaning solutions, etc.). The light guide spacer may span the length of the light guide and diffuser, maintaining spacing along a length of the light guide, providing mounting of the diffuser and light guide, and maintaining a position of the diffuser, such that it protects the light emitting surface of the light guide.

Abstract: A medical illumination system is provided for modulating properties of light emitted by a light source of the illumination system based on properties of a spot size defining an area illuminated by the emitted light.

Abstract: A phototherapy device including a flexible light emitting pad is provided. The phototherapy device allows an infant to be swaddled while the infant simultaneously receives phototherapy treatment on his/her front, back, and sides without the use of external light sources.

Abstract: An illuminated bassinet including a light source for delivering therapeutic light and anti-bacterial light, where an interlock prevents the anti-bacterial light from being emitted while an infant is located in the bassinet. Also, a surgical illuminator configured to concurrently or alternately emit different wavelengths of light for treating a physiological condition and for affecting perception of the surgical opening.

Abstract: An illuminated clothing article (8) including an indicator assembly (10, 12) having at least one light source (22), circuitry (14, 16, 18, 22), and a sensor (14, 16). The circuitry (14, 16, 18, 22) is configured to modulate at least one property of the light (22) emitted by the at least one light source (22) in response an external variable sensed by the sensor (14, 16). An illuminated clothing article (8) including an indicator assembly (10, 12) having at least one light source (22), circuitry (14, 16, 18, 22), and a sensor (14, 16). The circuitry (14, 16, 18, 22) is configured to modulate at least one property of the light (22) emitted by the at least one light source (22) in response an external variable sensed by the sensor (14, 16).

Abstract: A phototherapy device for modulating an optical dosage delivered to targeted tissues extraorally based on measured tissue properties, such that the targeted tissues receive a particular dose of optical power.

Abstract: A low-power non-contact proximity sensor with improved sensitivity. In particular, the non-contact proximity sensor includes a capacitive sensor decoupled from a surrounding environment by a guard ring. Both the capacitive sensor and the guard ring are driven by a direct current (DC) power source, with the guard ring driven based on feedback from the voltage applied to the capacitive sensor.

Abstract: Light emitters are made of one or more cladded flat optical fibers having opposite flat sides and disruptions along at least a portion of the length of the fibers to cause light entering at least one end to be emitted from at least one side. The ends of the flat optical fibers may have substantially the same thickness as a light source and a width substantially equal to or substantially greater than the width of the light source for ease of optically coupling one or more such light sources to the flat optical fiber ends.

Abstract: Intraoral phototherapy devices receive light from an associated light source and propagate the light into an oral cavity of a patient. The device comprises a light guide that receives light from an external light source. The light guide comprises a main body portion made of an optically transparent soft flexible biocompatible polymeric material sized and shaped to conform to contours of the oral cavity when inserted therein to direct the light to targeted regions of the oral cavity. The main body portion comprises a pair of spaced apart side wings sized and shaped to be received between a patient's teeth and cheeks on opposite sides of the oral cavity and a center flap intermediate the side wings for transmitting and directing the light to targeted regions of the oral cavity. A controller delivers light to the light guide in a controlled manner.

Abstract: A backlit system comprises a base panel, a plurality of keys disposed on the base panel, a substantially planar light guide panel disposed between the base panel and the plurality of keys, at least one light source disposed on the light guide panel, and at least one light management feature disposed on the light guide panel. The at least one light management feature is configured to at least partially reflect incident light within the light guide panel.