Examples of 'lens group' in a sentence
Meaning of "lens group"
lens group - This phrase refers to a collection or assembly of lenses. It often pertains to a group of lenses that are combined or arranged together to achieve a specific optical function or purpose
How to use "lens group" in a sentence
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lens group
A lens group may consist of one or more lens elements.
There is no need for a mechanical cam with one movable lens group.
An additional lens group for focusing may also be needed.
Electronic circuitry may also control the position of the movable lens group.
The focusing lens group is split into two subgroups.
This group changes its position relative to the front lens group during focusing.
The movable lens group can have a positive or negative power.
It is a NIKKOR lens in which only the internal lens group shifts during focusing.
At least one movable lens group provides variation of the magnification of an object.
In one implementation, a zoom system has at least a first and second lens group.
This lens group may contain both refractive and diffractive elements.
In this example, the field lens group contains one element.
The third lens group would also include a diffractive optical element.
As the light paths leave the prism, they converge and cross before entering a lens group.
The second lens group varies the magnification of the zoom lens.
See also
The overall optical power of lens group 44 is positive.
Front lens group is shifted together during focusing to achieve highest level of sharpness.
The combined optical power of the focus lens group 51 is negative.
A second lens group is positioned to receive the wavefront from the first lens group.
For example, the third or fourth lens group G3 or G4 may include the stop stp.
The field lens group is positioned near the intermediate image to correct chromatic aberrations.
F4, focal length of the fourth lens group.
A third lens group compensates for focus shift and focuses the wavefront onto the viewing plane.
F3, focal length of the third lens group.
A first lens group having a positive focal length ;.
Internal aperture stop 42 is located to the right of lens group 40.
The fourth lens group 4 is referred to as a prime group.
The light collection device 304 may be a lens or lens group.
First lens group means for relaying an outside scene to an intermediate plane ;.
The apparatus as claimed in claim 1, wherein said adjustment mechanism comprises an adjustable lens group ( 123 ).
Also, the second lens group includes at least one diffractive optical element.
Discrete lenses 205A-D may comprise a single element or a lens group.
An objective lens group for receiving and focusing collimated radiation of a viewed object ;.
Generally, the third lens group is broken down into a third and fourth lens groups.
Lens group 129 with positive overall optical power contains two refractive elements.
At least one element in lens group 54 is made of special optical glass.
The field lens group 62 is the last on the right and contains refractive elements.
In this example, one element of lens group D ( shown as the right-most element 46 ) is diffractive.
The fourth lens group 18, generally referred to as the prime group, includes five lenses.
The objective lens group 12 includes two lenses.
Lamp lens group 143 may preferably consist of multiple lenses or a single aspheric lens.
At least one element in lens group 58 will be made of special optical glass.
The third lens group 16, generally referred to as the compensator, includes a pair of optical elements.
Finally, field lens group 114 contains two refractive elements.
Focus lens group 44 forms an intermediate virtual image at a plane P-P.
When a focusing lens group is heavy, the focusing lens group can not be moved as quickly.
In this example, lens group 68 contains only refractive optical elements with overall positive optical power.
An objective lens group ( G1 ) that is axially stationary and that has a positive optical power ;.
The front lens group G1 is constructed from a negative lens 1 and two positive lenses 2 and 3.
The auxiliary lens group 57 remains stationary and at a fixed distance from the real image surface S48.
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