In the invention, a movable lens varying the rate of convergence or divergence of light reaching an objective lens by moving in an optical axis direction has its position adjusted to correspond to ambient temperature. A matrixing M of the space \u0394 is created by superimposing a large number of geometric matrices with different specifications \u03c1, each one of the meshes of each geometric matrix being identified by a unique and specific numerical value called a matrix code. The container further includes a venting device having a housing and a ball disposed within an interior region of the housing. In particular, the model can effectively calibrate the system for use with data of a particular statistical nature.