Lens cap and method for automatic recognition of the same

A visual sensor adapted to be capped with a cap including at least one light-transmitting part comprising a section transparent only to a specific wavelength range, the visual sensor comprising:

• a light sensitive element comprising pixels sensitive only to the specific wavelength range and pixels sensitive to a different wavelength range, the light sensitive element outputting a first pixel map from the pixels sensitive only to the specific wavelength range and a second pixel map from the pixels sensitive to the different wavelength range;
• and
• a processor for:
• subject to the first pixel map corresponding to the second pixel map, determining that the visual sensor is not capped by the cap,
• subject to the pixel map corresponding to the predetermined pattern, determining that the visual sensor is capped by the cap, and
• taking an action, dependent on whether the visual sensor is capped or not capped, in accordance with a setting.

A visual sensor adapted to be capped with a cap comprising a radiating element located on a side of the cap facing a lens of the visual sensor when the sensing unit is capped, the visual sensor comprising:

• a light sensitive element for outputting a pixel map;
• and
• a processor for;
• determining whether the pixel map is in accordance with a predetermined pattern by obtaining a first characteristic of a preliminary pixel map, obtaining a second characteristic of the pixel map output by the light sensitive element, and comparing the first characteristic to the second characteristic,
• subject to the pixel map corresponding to the predetermined pattern, determining that the visual sensor is capped by the cap,
• subject to the pixel map not corresponding to the predetermined pattern, determining that the visual sensor is not capped by the cap, and
• taking an action, dependent on whether the cap is on or off, in accordance with a setting.

A visual sensor adapted to be capped with a cap comprising a radiating element configured to radiate in a specific wavelength range, the radiating element located on a side of the cap facing a lens of the visual sensor when the sensing unit is capped, the visual sensor comprising:

• a light sensitive element comprising pixels sensitive only to the specific wavelength range and pixels sensitive to a different wavelength range, the light sensitive element outputting a first pixel map from the pixels sensitive only to the specific wavelength range and a second pixel map from the pixels sensitive to the different wavelength range;
• and
• a processor for:
• subject to the first pixel map corresponding to the second pixel map, determining that the visual sensor is not capped by the cap,
• subject to the first pixel map not corresponding to the second pixel map, determining that the visual sensor is capped by the cap, and
• taking an action, dependent on whether the visual sensor is capped or not capped, in accordance with a setting.

A visual sensor adapted to be capped with a cap comprising a reflector located on a side of the cap facing a lens of a visual sensor when the cap is on, the visual sensor comprising:

• a radiating element configured to radiate in a predetermined wavelength range;
• a light sensitive element comprising pixels sensitive only to the specific wavelength range and pixels sensitive to a different wavelength range, the light sensitive element outputting a first pixel map from the pixels sensitive only to the specific wavelength range and a second pixel map from the pixels sensitive to the different wavelength range;
• and
• a processor for:
• subject to the first pixel map corresponding to the second pixel map, determining that the visual sensor is not capped by the cap,
• subject to the first pixel map not corresponding to the second pixel map, determining that the visual sensor is capped by the cap, and
• taking an action, dependent on whether the visual sensor is capped or not capped, in accordance with a setting.