Intra-Lens-Spectrometer for a near-eye display measurement application
A spectroscopic measurement should reference color measurement parameters for high-precision color measurements using an imaging color measuring device (ICMD). Within an augmented and virtual reality (AR/VR, in general, called near-eye displays - NED) measurement application, the spectral distribution of the device under test (DUT) should be measured within a 2° field of view according to the standard observer. The measuring spot should be on the optical axis of the imaging device. Integrating the spectrometer coupling in an AR/VR measuring lens can guarantee those fundamental criteria by optical design and adjustment. We present a lens design that meets these requirements and thus combines other various advantages of the elemental lens design.