# Freeform imaging system with resolution that varies with the field angle in two dimensions

> Research article (Optics Express, 2021) · cited 18× · AI/ML

**Wikidata**: [openalex:W3209049839](https://www.wikidata.org/wiki/openalex:W3209049839)  
**Source**: https://4ort.xyz/entity/freeform-imaging-system-with-resolution-that-varies-with-the-field-angle-in-two-dimensions