Create - New Lens

Navigation: Create Commands > New Lens

New Lens

Page Contents

Description

The Create New Lens command specifies a singlet to be added to the current FRED document by choosing either the lens radii, curvatures or the focal length and bending parameters.

Navigation

This command can be accessed in the following ways:

•Menu > Create > New Lens

•On the Geometry folder in the object tree view, right mouse click and select "Create New Lens...".

•Ctrl + Alt + L

•Toolbar button:

Controls

Control	Inputs / Description	Defaults
Parent	Identifies the Logical Parent of the lens element.	Geometry unless created under Subassembly.
Name	Displays the name of the lens.	Lens n
Description	Displays the description of the lens (optional).	Blank
Basic Parameters
Parameter Type	Choose between radii, curvatures, and focal length/bending parameter for expressing front and back surface shapes.	Curvatures (set in Preferences)
Front …	Displays the front radius, front curvature, or focal length depending on the selected parameter type.	0
Back …	Displays the back radius, back curvature, or bending parameter, depending on the selected parameter type.	0
Thickness	Displays the value of the lens center thickness.	0.1
Lens Aperture Specification
X/Y Semi aperture	Displays the value of the semi-aperture in the X direction.	0.5, 0.5
Advanced Settings	Advanced aperture specifications including edge bevels details.
Materials
Glass Name	Displays the name of the material used for the lens.	Standard Glass
Immersion Name	Displays the name of the material that surrounds the lens.	Air
Glass Catalog	Displays the catalog that contains the lens material.	Current
Immersion Catalog	Displays the catalog that contains the immersion material.	Current
Select Glass	Selects lens material.
Select Immersion	Immerse the lens in this material.
Location of the Lens
Location	Displays the Location/Orientation specification for the lens.	Geometry
Derived Properties
Focal	Displays the focal length of the lens at the selected wavelength.	0
Bend	Displays the bending parameter of the lens at the selected wavelength.	0
Front Prin	Displays the location of the front principal plane of the lens at the selected wavelength.	0
Back Prin	Displays the location of the back principal plane of the lens at the selected wavelength.	0
Wavelength (mm)	Wavelength used to calculate the derived properties.	0.5892938
Y Edge Thick	Calculated Edge Thickness in the Y direction at the selected wavelength.	0.1
Update	Updates the derived properties display boxes.

OK	Accept settings and close dialog box.
Cancel	Discard settings and close dialog box.
Apply	Apply settings and keep dialog box open.
Help	Access this help page.