From the difference between what you see and the actual location of the lines, an app calculates the focusing error of your eyes.
Simulations show a reduced sensitivity of resist linewidth to exposure variation and an increased tolerance of the linewidth to focus error with partially coherent illumination.
It can maintain low focusing error over a predefined sector-of-interest in the field-of-view (FOV) of the array while adaptively suppressing out-of-sector sources.
For the large local peaks scope, the three-point hill-climbing method still can appear as the focusing error to search the local peak point P" in Figure 6. Figure 6 Wrong focusing of three-point hill-climbing algorithm.
When the focusing mechanism stops at P" point, it can avoid the focusing error if there is another evaluation function to further judge whether this point is the focal position.
The MTF value of the collected image is calculated, which is compared with the MTF values of the prearranged focal images, and the judgment of the focusing error is completed.
Once you're in focus, stop your aperture down by a couple of stops; this will give you a greater depth of field to compensate for the inevitable focusing error, however small.
Until early adulthood, the eye can compensate for these focusing errors by either increasing or decreasing its growth rate respectively.
For crossroad accidents, there were further errors resulting from sight obstruction, masked stimuli, focus errors, and law infringements.
"The prevailing wisdom held that the retina responds to the farsighted and nearsighted focusing errors by changing expression of the same genes but in opposite directions," Tkatchenko says.
The Columbia researchers are currently searching for drug compounds that can modulate the two signaling systems that control eye growth in response to focusing errors.
