Axial vernier device for lens with flexible ring piece structure
A technology of fine-tuning device and flexible ring, which is applied in the direction of photolithography exposure device, installation, micro-lithography exposure equipment, etc., can solve the problems of small carrying capacity, small adjustment stroke, low adjustment accuracy, etc., and achieve large carrying capacity and compensation Tilt error, effect of real-time adjustment capability
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[0024] The present invention will be further described below in conjunction with the drawings.
[0025] See attached figure 1 And figure 2 A lens axial fine-tuning device with a flexible ring sheet structure of the present invention includes an axial fine-tuning assembly 1, a lens assembly 2, three micro-displacement drivers 3 and three micro-displacement sensor assemblies 4; the lens assembly 2 includes a lens frame 2 -1 and lens 2-2. The micro-displacement sensor assembly 4 includes a micro-displacement sensor 4-1 and a sensor connecting plate 4-2. The axial fine-tuning assembly 1 includes a lens barrel 1-1, an upper flexible ring sheet 1-2, Lower flexible ring sheet 1-3 and drive ring 1-4; this device is used to adjust the axial relative position of the lens 2-2. The lens barrel 1-1 is the basis for the installation of the entire fine-tuning device, the lens barrel 1-1 and the upper flexible ring piece 1-2, the lower flexible ring piece 1-3, the drive ring 1-4, the lens frame...
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