LENS MODULE AND DEVICE HAVING THE LENS MODULE

Abstract: a lens module with stable back focal length and a device having the lens module are provided. the lens module includes a lens assembly, a holder, a circuit board, and a sensor. the coefficient of thermal expansion of the holder is less than or equal to 0.6 (10cm/cm/� c.), thus, the deformation of the holder can be almost ignored, and the distance between the lens assembly and the sensor (i.e., the back focal length) will remain unchanged, thereby reducing image blurring caused by changes in the back focal length.

Inventor(s): HUNG-LUNG HO

CPC Classification: G02B7/021 (OPTICAL ELEMENTS, SYSTEMS OR APPARATUS)

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