5 results about "Candela" patented technology

Aspects described herein relate to a notification appliance that can receive, from a notification appliance circuit (NAC) and using the interface, a synchronization pulse signal including a command signal indicating a synchronized candela rating (or other settings), and can modify, based on the command signal, a candela rating stored at the notification appliance for operating the strobe light to be equal to the synchronized candela rating. Other aspects relate to a fire alarm control panel (FACP) that can transmit the synchronization pulse signal including a command signal indicating the synchronized candela rating (or other settings).

A flowable luminescent coating composition includes a curable thermoset resin, a filler material, two or more solvents, a plasticizer, a stabilizer, phosphorescent aluminate particles. The phosphorescent aluminate particles are present in the flowable luminescent coating composition at a concentration of 30 to 70% by weight of the composition. The composition in a cured form has an intensity of glow of 1-50 candelas per square meter for a period of 0.1 to 2 hours upon excitation with ultraviolet light for 5 to 120 seconds. A glow-in-the-dark (GiD) film, a GiD traffic sign, and a GiD system.

A flowable luminescent coating composition includes a curable thermoset resin, a filler material, two or more solvents, a plasticizer, a stabilizer, phosphorescent aluminate particles. The phosphorescent aluminate particles are present in the flowable luminescent coating composition at a concentration of 30 to 70 % by weight of the composition. The composition in a cured form has an intensity of glow of 1-50 candelas per square meter for a period of 0.1 to 2 hours upon excitation with ultraviolet light for 5 to 120 seconds. A glow-in-the-dark (GiD) film, a GiD traffic sign, and a GiD system.

The present disclosure relates to a candela reproduction method and device based on a virtual blackbody equivalent spectrum synthesis light source, belonging to the technical field of optical metrology testing. The method comprises: calculating the spectral radiance distribution of an ideal blackbody based on the freezing point temperature of platinum; constructing a spectral synthesis light source composed of narrowband spectral light sources and homogenizing devices; determining the target spectral radiance distribution of the spectral synthesis light source for a preset human eye spectral light visibility efficiency function, so that the weighted integral value of the target spectral radiance distribution is equal to that of the ideal blackbody; adjusting the power of each narrowband light source in the spectral synthesis light source so that the spectral radiance distribution of the spectral synthesis light source reaches the target spectral radiance distribution p times; when the effective light emitting area of the outlet surface of the spectral synthesis light source is 1 / 60 square centimeters q times, the luminous intensity is determined to be p q candela, thus realizing a candela reproduction scheme consistent with the historical definition, compatible with multiple visual function models, and taking into account both theoretical rigor and engineering feasibility.

Aspects described herein relate to a notification appliance that can receive, from a notification appliance circuit (NAC) and using the interface, a synchronization pulse signal including a command signal indicating a synchronized candela rating (or other settings), and can modify, based on the command signal, a candela rating stored at the notification appliance for operating the strobe light to be equal to the synchronized candela rating. Other aspects relate to a fire alarm control panel (FACP) that can transmit the synchronization pulse signal including a command signal indicating the synchronized candela rating (or other settings).