Camera module with tolerance adjustment using embedded active optics
a technology of optical control and camera module, which is applied in the field of optical devices and assemblies, can solve the problems of insufficient optical and physical manufacturing tolerances to ensure the desired precision, and the overall device focusing power is changed, so as to achieve acceptable optical performance and shorten the overall lens design. the effect of the improvemen
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[0035]The present invention is directed to an optical lens apparatus that uses fixed lenses in combination with an electrically controllable liquid crystal optical device. Depending on the specific configuration, the apparatus may be directed to one of several applications. In each of these embodiments, the apparatus uses the optical properties of the fixed lenses in combination with the electrically controlled optical properties of the liquid crystal device.
[0036]Shown in FIG. 1 is a schematic view of a first embodiment of the invention in which a variable focus lens 10 has a barrel structure consisting of two portions, an outer portion 12 and an inner portion 14. The lens may be used in a variety of different applications, including compact digital cameras, such as might be integrated into a portable telephone. Each of the two portions includes a fixed lens, lens 16 in the outer portion 12, and lens 18 in the inner portion 14. Each of the lenses in this embodiment are an integral ...
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