There There are three basic types of telecentric lenses: object-space, image-space, and double telecenWith oObject-space telecentric lenses, the entrance pupil is at infinity. With image-space ...

With the focal length calculated at 130mm, this value could then be divided by the the lens's entrance pupil diameter (simply ...

the light intensity across the entrance pupil and aperture stop is uniform, and this is generally known as a "top-hat" intensity profile or distribution. A telescope objective, if it is free of ...