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US 10,148,891 B1Granted
Card operation device for controlling exposure time
OwnerTzu-Ping Hsuinventor
Life of this patent
Estimating the term…
Abstract
A card operation device includes a body having a mounting hole for being mounted to a camera lens. A card is connected to the body and located in front of the lens. The card is movable up and down along rails in two insides of the body, and may be a masking card or a slotted card. The body has a driving unit and multiple positioning units. A controller is electrically connected to the body to control up-and-down movement, shaking and stopping of the card in front of the lens. The masking card and the slotted card are automatically operated when being set.
Claims7
A card operation device comprising:
- a body having a mounting hole which is mounted to a camera lens, a card connected to the body and located in front of the lens, the card being movable up and down along rails in two insides of the body, the body having a driving unit and multiple positioning units, and
- a controller electrically connected to the body to control up-and-down movement, shaking and stopping of the card.
Dependencies are inferred from the claim text.