6 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 invention discloses a head lamp video recording system for a small incision operation, which comprises a special head lamp system of a double-beam lamp for emitting parallel beams, so that the brightness of an operation field reaches 30-50 candelas / square meter, and a video recording system which is controlled separately from the head lamp system is arranged at the same time; only the beam lamp and the camera are arranged on an outer leading fixing frame of the head fixing structure, and the lamp control structure and the video recording control structure are integrated on an integral control device. The outer leading fixing frame guides the beam lamp and the camera to a position which is more than 3cm away from the head; by arranging the double-beam lamp, the brightness of parallel beams can meet the brightness requirement of a deep small incision, and the beam lamp and the camera are arranged far away from the head in combination with an external guide fixing frame, so that the influence of too high heat generated by equipment on a surgeon is avoided; in addition, through independent arrangement of the control device, it is guaranteed that only the light double-beam lamp and the camera are arranged on the outer guide fixing frame, and the cervical vertebra problem of an operator caused by a heavy head structure during operation is avoided.

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).