A compass device includes a base seat, a vial unit received in an accommodation hole of the base seat, an azimuth unit rotatably sleeved around the vial unit, a first spring wire disposed to resiliently retain the vial unit to the azimuth unit for magnetic declination adjustment, and a second spring wire disposed to resiliently retain the azimuth unit to the base seat for bearing angle measurement.

A compass device includes a base seat, a vial unit received in an accommodation hole of the base seat, an azimuth unit rotatably sleeved around the vial unit, a first spring wire disposed to resiliently retain the vial unit to the azimuth unit for magnetic declination adjustment, and a second spring wire disposed to resiliently retain the azimuth unit to the base seat for bearing angle measurement.

The present invention relates to a method for determining positions by an optronic system in a scene, the scene comprising reference elements of known geographic coordinates, the optronic system comprising the following elements integrated into said optronic system: a. a digital imager, b. a memory wherein is stored, for each reference element of the scene, an indicator representative of said point associated with the geographic coordinates of said point, c. a display element that displays the indicators stored in the memory, d. a measurement module comprising at least one element chosen from among: a compass, a goniometer and a telemeter, e. a calculation unit, the method being implemented by the elements integrated in the optronic system.

The present invention relates to a method for determining positions by an optronic system in a scene, the scene comprising reference elements of known geographic coordinates, the optronic system comprising the following elements integrated into said optronic system: a. a digital imager, b. a memory wherein is stored, for each reference element of the scene, an indicator representative of said point associated with the geographic coordinates of said point, c. a display element that displays the indicators stored in the memory, d. a measurement module comprising at least one element chosen from among: a compass, a goniometer and a telemeter, e. a calculation unit, the method being implemented by the elements integrated in the optronic system.