Design of 90° Off-Axis Paraboloid (OAP) Mirror

Off-Axis Parabolic (OAP) mirrors are part of the primary paraboloid. Off-axis means that the optical axes of the two are parallel but not coincidence. The focus axis passes through the center of the focus and the OAP mirror, and the distance between these two points is called the reflected focal length (RFL). The Angle between the focusing axis and the optical axis is the off-axis Angle.

The Off-Axis Parabolic mirror (OAP) can focus collimated beams or collimated dispersing light sources without chromatic aberration, and its off-axis design can spatially separate the focus from the optical path. The reflective design eliminates the phase delay and absorption loss introduced by transmitted optics.

90° off-axis paraboloid (OAP) mirror

Specifications

Select "Entrance" in the aperture type

Pupil Diameter ", and input "11.43" according to the design requirements (90% aperture 12.7×90%);

To set 1 field of view in the Field setting dialog box, select "Angle" as shown below

In the wavelength setting dialog box, set the working wavelength to 0.550um, as shown below:

LDE is as follows:

The second page is set as follows:

View 3D Layout: