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Fireproof rolling shutter door,LED driver and method of operating a camera

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2 results about "Rolling shutter" patented technology

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Rolling shutter is a method of image capture in which a still picture (in a still camera) or each frame of a video (in a video camera) is captured not by taking a snapshot of the entire scene at a single instant in time but rather by scanning across the scene rapidly, either vertically or horizontally. In other words, not all parts of the image of the scene are recorded at exactly the same instant. (Though, during playback, the entire image of the scene is displayed at once, as if it represents a single instant in time.) This produces predictable distortions of fast-moving objects or rapid flashes of light. This is in contrast with "global shutter" in which the entire frame is captured at the same instant.

Fireproof rolling shutter door

PendingCN109162627APrevent overturningImprove fire resistanceDoor/window protective devicesFireproof doorsEngineeringDrive motor

The invention discloses a fireproof rolling shutter door comprising a wall body, vertical plates, a U-shaped connecting frame, a roller shutter plate, a counterweight plate, a driving motor, a water pump, a ground, a placing box and a control panel. The wall body is fixed on the top of the ground; and an inlet and an outlet are formed in the wall body. The vertical plates are fixed symmetrically on one side wall of the wall body and are arranged at the two sides of the inlet and the outlet respectively. The bottoms of the vertical plates are fixedly connected with the top of the ground. The U-shaped connecting frame is fixed on the tops of the vertical plates; and one side wall of the U-shaped connecting frame is fixedly connected to one side wall of the wall body. A rotating rod is arranged in the U-shaped connecting frame; the two ends of the rotating rod are in rotation connection with the inner walls of the two sides of the U-shaped connecting frame through bearings. The roller shutter plate is arranged below the U-shaped connecting frame; and the counterweight plate is fixed at the bottom of the roller shutter plate. When a fire occurs, the roller shutter plate is stopped frombeing thrown; and the roller shutter plate can be cooled.

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Owner:泰州环溪家居有限公司

LED driver and method of operating a camera

ActiveUS20210227120A1Television system detailsCarbon compoundsUser deviceEngineering

Disclosed is a method of capturing an image of a scene using a user device having a rolling shutter camera. The scene is subjected to an illumination by an LED light source. The method includes providing, by the user device, a notification signal to the LED light source, the notification signal being indicative of a capturing or imminent capturing of an image; adjusting, by the LED light source, an operating characteristic of the LED light source, based on the notification signal; and capturing, by the rolling shutter camera, the image of the scene, while the LED light source is operating at the adjusted operating characteristic.

Owner:ELDOLAB HLDG BV

2 results about "Rolling shutter" patented technology

Fireproof rolling shutter door

LED driver and method of operating a camera

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