The wavefront sensor (much like other interferometers) measures only small perturbations from a plane wave. In other words, it works in collimated space. Your lens system has finite conjugates, so it wouldn’t be possible to directly measure the entire lens system in the configuration it will be used. You have two choices.

Typically what is done is adding a null lens. put the focal plane at the focus of another optic which will conjugate it back to collimated space so you can measure the wavefront. The problem is that the null lens is now part of the measured wavefront. Therefore it has to be trusted to be perfect to much better than the errors you want to measure. For that reason people usually use a precision OAP. Warning: an OAP only has one good field point. If you want to test different field points, the system under test must be translated to locate each field point at the usable center field point of the OAP in turn.

The second choice is to measure the lens system in pieces. It looks like you have a region that is intended to be truly collimated. You can split the lens system there and measure the two halves separately. That approach has two problems. First, it may not be mechanically convenient to build the two subassemblies separately. Second, even if you can measure them, you will still have a question of how well you put the two halves together and whether errors in that step that introduced aberrations.

Sensörün arkasına geliştirilmiş lensler yerleştirilerek bazı ölçümler gerçekleştirilebilir. Wavefront sensörü ölçüm için yeterli değil. Lenslerin konumu değiştirilse bile bu özellik değişmeyecek.