摘要:
An LED based illumination module includes a thermal interface surface that is coupled to a thermal interface surface of a reflector using engaging members that generate a compressive force between the thermal interface surfaces. The engaging members may be, e.g., protrusions that interface with recesses, spring pins, formed sheet metal, magnets, mounting collar, etc. The reflector may include a vented portion that is not optically coupled to the LED based illumination module to allow air to pass through the reflector.
摘要:
An illumination module (100) includes a plurality of Light Emitting Diodes (LEDs) (102a, 102b, 102c). Multiple color conversion cavities (160a, 160b, 160c) are present, each with sidewalls (161) coated with wavelength converting materials (162,16,165). One or more LEDs are located within each color conversion cavity. A transmissive layer (134) may be deposited over the color conversion cavities and may include additional wavelength converting material (163). The wavelength converting materials may be selected to produce an output light with target color point. Additionally, a secondary light mixing cavity (170) may be present over the multiple color conversion cavities.
摘要:
A reflector housing is detachably coupled to an LED based illumination device and includes a flange having a surface facing the environment illuminated by the LED based illumination device. The reflector housing further includes a reflector having an input port that receives light emitted from the LED based illumination device and an output port through which light passes toward the environment. At least one sensor, such as a sensor for occupancy, an ambient light, a temperature, ultrasound, vibration, pressure, or a camera, microphone, visual indicator, or photodetector, is coupled to the flange such that at least a portion of the sensor faces the environment illuminated by the LED based illumination device. A reflector interface module configured to receive at least one signal from the sensor is coupled to the reflector housing. Additionally, a communications interface subsystem is configured to transmit and receive communications signals to and from the reflector housing.
摘要:
An LED based illumination module includes a thermal interface surface that is coupled to a thermal interface surface of a reflector using engaging members that generate a compressive force between the thermal interface surfaces. The engaging members may be, e.g., protrusions that interface with recesses, spring pins, formed sheet metal, magnets, mounting collar, etc. The reflector may include a vented portion that is not optically coupled to the LED based illumination module to allow air to pass through the reflector.
摘要:
An illumination module (100) includes a plurality of Light Emitting Diodes (LEDs) (102a, 102b, 102c, 102d). A grid structure (196) is present on a transmissive layer (134) over the LEDs, such as an output window, to form a plurality of color conversion pockets. A portion of the pockets are coated with a first type of wavelength converting material (191) while other portions of the pockets are coated with a different type of wavelength converting material (192).