The focal length of the variable focal length micromirror array lens changes according to the depth of the depthwise image being displayed.

Slightly further away than minimum focus distance.

One of the data points is the distance from you to the target.

The distance between the diffractive optical surface (DOS) and the lens' aperture stop (AS) is less than 0.1.f0, where f0 is the focal length of the projection lens (13).

It needs to provide focal length and focal distance to the system.

Adjustment of the pressure or volume of the oil in the cavity changes the focal length of the lens.

In this way, a maximum axial distance between the lens holder (50) and the foot (30) is determined, which may be set to be the focal distance of the lens.

The focal length of the lens determines the shape of the lens that can be imaged when the projector and the screen are in a certain distance.

As opposed to a fixed focal length (FFL) lens, Zoom lens focal length can be varied, when maintains its focus.

This distance over which this occurs is called the depth of focus.

The length over which this happens is called the focal length of the objective.

Use the ring the width of which does not exceed the focal length of the lens used.

First, the focal length of the camera lens increases or decreases the depth of field.

February 17, 2017As opposed to a fixed focal length (FFL) lens, Zoom lens focal length can be varied, when maintains its focus.

The focal length of the Planar T* 1,4/50 is equal to the perspective of the human eye.