Patent ID: 9207444
Filing Date: 2015-12-08
Classification: G02B

Abstract:
1. A focusing device comprising: a processor; and a memory device operatively coupled to the processor, the memory device storing instructions that cause the processor, in cooperation with the memory device, to: (a) generate a first image associated with a sample and a second image associated with the sample; (b) determine disparities between: (i) the second image associated with the sample; and (ii) a third image associated with the sample; and (c) for a lens, determine a focusing position based on the determined disparities, wherein the lens: wherein the instructions, when executed by the processor, cause the processor to: wherein the instructions, when executed by the processor, cause the processor to, in response to the third value being larger than a predetermined threshold, for the lens, divide an imaging area into a plurality of layers, the number of layers being based on the first depth of field of the lens.