optical axis


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Related to optical axis: focal length, visual axis

optical axis

The imaginary line passing through the midpoint of a lens, mirror, or system of such elements and on which lies the focal point of parallel paraxial rays.

Optical Axis

 

The optical axis of a lens or a concave or convex mirror is the straight line that is the axis of symmetry of the refracting surfaces of the lens or of the reflecting surface of the mirror. It passes perpendicularly through the center of these surfaces. Optical surfaces that have such an axis are said to be axially symmetric. The optical axis of an optical system is the common axis of symmetry of all the lenses and mirrors in the system.

optical axis

[′äp·tə·kəl ′ak·səs]
(anatomy)
An imaginary straight line passing through the midpoint of the cornea (anterior pole) and the midpoint of the retina (posterior pole).
(optics)
A line passing through a radially symmetrical optical system such that rotation of the system about this line does not alter it in any detectable way.
optic axis

optical axis

An imaginary line drawn from the geometric center of a film to the center of a lens. It may project beyond the lens. Also called a lens axis and a camera axis
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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.
The III-V Triple-Junction Solar Cell Characteristics and Optimization with a Fresnel Lens Concentrator
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].
Method for Supervisory Implementation of Manipulation Operations by Underwater Vehicles
Certainly, such an absorber with the optical axis turning in accordance with the wavelength is unrealistic.
Highly Efficient Broadband Light Absorber Based on Nonuniform Hyperbolic Metamaterial Film
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.
Angularly Resolved Deep Brain Fluorescence Imaging Using a Single Optical Fiber
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].
Review of Calibration Methods for Scheimpflug Camera
Ray matrix method has been widely used to analyze optical axis perturbations in various 3D optical systems [12-15].
Optical Axis Perturbation Analysis for the Unit-Magnification Multipass System
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.
Principios opticos basicos aplicados al calculo de los limites de metodos de difraccion numerica
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.
Posterior capsular opacification in preschool--and school-age patients after pediatric cataract surgery without posterior capsulotomy
Locating the transmitter at the [S.sub.i] = 576 mm, the electric field distribution along the optical axis was measured by scanning the receiver axially by step of 5 mm.
Design of Quasi-Optical Lens Antenna for W-Band Short Range Passive Millimeter-Wave Imaging
This will work with the on-board system's optical axis. There are also two ways of connecting the module described in the document.
iPhone 6 Will Have an Interchangeable Camera Lens? Apple Secures Patent Before Release
* perpendicular in the horizontal plane and the horizontal setting of the optical axis of the lens with respect to the staff (Fig.
The application of the optoelectronic technique of transferring heights from the recessed benchmarks in networks in the examination of rock mass deformation
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.
Conformity check of thickness to the crystal plate [lambda]/4([lambda]/2)

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