Figure 8 shows the variation of the spot diameter of three bands with the position of the
optical axis under a Fresnel lens for parallel incident light.
After the operator directs the
optical axis of the camera to the next target point [A.sub.i+1], the value of the parameter [t.sub.i+1] is calculated using the equation (3) for the new point [P.sub.i+1] and the vector [[??].sub.i+1].
Certainly, such an absorber with the
optical axis turning in accordance with the wavelength is unrealistic.
This difference in measuring the coordination of maximum fluorescence protein expression is the result of the angle of the main lobe of radiation which is not completely orthogonal to the fiber's
optical axis. Taking the firing angle of 73.81[degrees] into account, we can use simple geometry to compensate for this discrepancy.
The RAC [29] points out that, assuming only radial lens distortion exists, the position vector [mathematical expression not reproducible] determined by the ideal image point and the distorted image point should be aligned with the position vector [mathematical expression not reproducible], which is the vertical line from the point [P.sub.W] to the
optical axis, and there is a relationship between two position vectors as [mathematical expression not reproducible].
In panel a) the plot with dot-lines corresponds to the phase difference calculated by subtracting the phases obtained for the opening and its complement on the
optical axis for different distances of propagation; for this plot [P.sub.N] = 1.0 in Eq.
PCO development, PCO duration, need for Nd:YAG laser therapy due to
optical axis obscuration and follow-up time were recorded at follow-up visits.
* perpendicular in the horizontal plane and the horizontal setting of the
optical axis of the lens with respect to the staff (Fig.
Pikoul [5] provides a comparative analysis of the polarization properties of the crystal plate with a different arrangement of the
optical axis. Constituent phase plates, which act as quarter- and half-wave, are often used.