Power Generator
Imaging Lens
Image Sensor
Polyoptic Wheel
Viewfinder, Eye
LED Flash
LCD Display
Image Processing

Downloadable PDFs

Introduction      Afocal Optics      Regular      Wide Angle
Stereo      Position Sensor      Illustrations

Wide Angle Lens

The polyoptic wheel's second setting allows you to take wide-angle images with a horizontal field of view (FOV) of 80°. In this setting, a wide angle lens on the wheel works with the primary lens on the PCB. The captured image is bulgy-looking and is said to have "barrel" distortion. When it is downloaded from the camera, the image is converted by Bigshot's software into a distortion-free panoramic photo.

Figure 4 compares the FOV captured by the wide-angle lens together with the primary lens (shown in red), to that captured by the primary lens alone (shown in blue). Although the wide-angle lens has a fixed shape, you can use the slider to see how a designer might alter the shape of the lens to vary the field of view.

Figure 4: Image formation with a wide-angle lens


[1] "Panoramic Photography," Oct 2, 2009. [Online]. Available: http://en.wikipedia.org/wiki/Panoramic_photography. [Accessed: Oct 4, 2009].