Method, apparatus for lens barrel distance adjustment device and computer medium

A method for adjusting a lens barrel distance, comprising:

• obtaining a pupillary distance of a user;
• obtaining a first output voltage determined by a hall sensor;
• in response to that the first output voltage indicates that an absolute value of a difference value between a distance between left and right lens barrels of a head-mounted device and the pupillary distance of the user is greater than a predetermined threshold, sending a control instruction to an adjustment circuit, causing the adjustment circuit to adjust a distance between the left and right lens barrels based on the control instruction;
• wherein, the hall sensor and the adjustment circuit are provided on the head-mounted device.

A head-mounted device, comprising:

• a camera group, a data processing circuit, an adjustment circuit, and a hall sensor, wherein:
• the camera group is configured to take an eye image of a user;
• the hall sensor is configured to sense a magnetic induction intensity of a magnet related to a distance between left and right lens barrels of a head-mounted device, and output a corresponding first output voltage based on the magnetic induction intensity;
• the data processing circuit is connected to the hall sensor and the adjustment circuit and configured to obtain the first output voltage;
• in response to that the first output voltage indicates that an absolute value of a difference value between a distance between the left and right lens barrels and a pupillary distance of a user is greater than a predetermined threshold, send a control instruction to the adjustment circuit, causing the adjustment circuit to adjust a distance between the left and right lens barrels based on the control instruction;
• the adjustment circuit is configured to receive the control instruction and adjust a distance between the left and right lens barrels based on the control instruction.