Patent ID: 8027096
Filing Date: 2011-09-27
Classification: G02B,H01L

Abstract:
1. A portable data collection device for imaging a target at an object distance from said device, the object distance comprising a first object distance and a second object distance that is different from the first object distance, said portable data collection device comprising: a light directing assembly for directing light toward a target; a variable focus module capturing light from the light source reflecting from the target, the variable focus module comprising a boundary element and a focus membrane communicating with said boundary element in a manner forming a fluid chamber defining an optical axis, the fluid chamber having a focus fluid disposed therein; a deforming element in communication with said focus module; and a lens controller coupled to the deforming element, the lens controller providing a control signal to said deforming element in a manner varying a force applied by said deforming element on said focus membrane in a direction parallel to the optical axis, the force adapting the focus membrane for the first object distance and the second object distance, wherein said light directing assembly comprises a first source providing light at a first wavelength and a second source providing light at a second wavelength that is different from the first wavelength.