摘要:
A mounting arrangement for a light source (L) having associated a Printed Circuit Board, wherein said mounting arrangement includes: a housing (H) with an exit opening for light from the source (L), a reflector (R) to reflect light from the source (L) towards the opening, an at least partly transparent cover (1) to close the opening of the housing (H). The cover (1) includes a set of retaining elements (12A) for retaining the cover (1) to the housing (H), and a set of holding elements (12B) for holding the associated Printed Circuit Board (D) within the housing (H). Such configuration is capable of exerting a pressure on the reflector (R) when the cover (1) is coupled to the housing (H), and wherein the reflector (R) in turn urges the light source (L) against the housing (H), providing thus thermal coupling between the light source (L) and the housing (H).
摘要:
In various embodiments, a street lighting device with a first light source for illuminating the street plane from above is provided. The device may include a second light source located at a closer position to the street plane than said first light source; a sensor sensitive to the occurrence of conditions of reduced ambient visibility; and a controller connected to said sensor and capable of activating said second light source in the presence of said conditions of reduced ambient visibility.
摘要:
Connecting a first (12) and a second (14) printed circuit board or PCB carrying a LED lighting source (10) and the associated drive circuitry involves providing board connection pads (12a, 14a) at said first (12) and second (14) PCBs, and arranging a flex PCB (16) in a bridge-like fashion between the first (12) and second (14) PCBs. The flex PCB (16) has connection pads (16a) for bonding with the board connection pads (12a, 14a) of the PCBs (12, 14). The connection pads (16a) in the flex PCB (16) arranged in a bridge-like fashion between the first (12) and second (14) PCBs are bonded with the connection pads (12a, 14a) of the first (12) and second (14) PCBs, so that the first (12) and second (14) PCBs are connected.
摘要:
A mounting arrangement for a light source (L) having associated a Printed Circuit Board, wherein said mounting arrangement includes: a housing (H) with an exit opening for light from the source (L), a reflector (R) to reflect light from the source (L) towards the opening, an at least partly transparent cover (1) to close the opening of the housing (H). The cover (1) includes a set of retaining elements (12A) for retaining the cover (1) to the housing (H), and a set of holding elements (12B) for holding the associated Printed Circuit Board (D) within the housing (H). Such configuration is capable of exerting a pressure on the reflector (R) when the cover (1) is coupled to the housing (H), and wherein the reflector (R) in turn urges the light source (L) against the housing (H), providing thus thermal coupling between the light source (L) and the housing (H).
摘要:
Connecting a first (12) and a second (14) printed circuit board or PCB carrying a LED lighting source (10) and the associated drive circuitry involves providing board connection pads (12a, 14a) at said first (12) and second (14) PCBs, and arranging a flex PCB (16) in a bridge-like fashion between the first (12) and second (14) PCBs. The flex PCB (16) has connection pads (16a) for bonding with the board connection pads (12a, 14a) of the PCBs (12, 14). The connection pads (16a) in the flex PCB (16) arranged in a bridge-like fashion between the first (12) and second (14) PCBs are bonded with the connection pads (12a, 14a) of the first (12) and second (14) PCBs, so that the first (12) and second (14) PCBs are connected.
摘要:
In various embodiments, a device for displaying a signal, including an optical guide defining at least one propagation path for an optical radiation from an injection point of the radiation, in which the optical radiation propagating along this path is subject to attenuation due to being diffused and made visible outside said guide, and at least one source of optical radiation for receiving said signal and generating an optical radiation whose intensity is a function of said signal; said at least one optical radiation source being coupled to said at least one injection point to inject into said guide the optical radiation generated by said radiation source.
摘要:
An optical system including at least one light source, such as a LED source (10), and an optics (30) subjected to aging as a result of exposure to the light source (10) is designed by: defining an aging model for the optics (30), defining a thermal model for the light source (10, 100) as a spatial function representative of the temperature generated by the light source (10, 100), and defining the distance of the optics (30) from the light source (10) as a function of the aging model and the thermal model. The optical overall system (single or multiple reflector and lens) is finally optimised starting from the results achieved in the previous steps.
摘要:
An optical system including at least one light source, such as a LED source (10), and an optics (30) subjected to aging as a result of exposure to the light source (10) is designed by: defining an aging model for the optics (30), defining a thermal model for the light source (10, 100) as a spatial function representative of the temperature generated by the light source (10, 100), and defining the distance of the optics (30) from the light source (10) as a function of the aging model and the thermal model. The optical overall system (single or multiple reflector and lens) is finally optimised starting from the results achieved in the previous steps.
摘要:
In various embodiments, a street lighting device with a first light source for illuminating the street plane from above is provided. The device may include a second light source located at a closer position to the street plane than said first light source; a sensor sensitive to the occurrence of conditions of reduced ambient visibility; and a controller connected to said sensor and capable of activating said second light source in the presence of said conditions of reduced ambient visibility.
摘要:
A lighting device (100) including light radiation sources that can be mixed (102) to produce multi-chromatic light radiation (W; W1, W2, W3, W4; WS) as an additive mixture of the radiations generated by said sources, comprising a plurality of sets (1, 1′; 2, 2′; 3, 3′; 1, 2, 3; 1′, 2′, 3′; 1, 1′; 2, 2′; 3, 3′; 4, 4′; 1, 2, 3, 4, 5, 6) of light radiation sources, wherein each set includes light radiation sources that can be mixed (102) to produce multi-chromatic light radiation through additive mixing of the radiations generated by the sources in the set; and a control device (10, 10′, 1000) to selectively activate the sets (1, 1′; 2, 2′; 3, 3′; 1, 2, 3; 1′, 2′, 3′; 1, 1′; 2, 2′; 3, 3′; 4, 4′; 1, 2, 3, 4, 5, 6) of radiation sources in said plurality