{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9798154","patent":{"patent_number":"US-9798154","title":"Control of polarization and diffractive artifact resolution in retro-imaging systems","assignee":null,"inventors":[],"filing_date":"2015-01-02T00:00:00.000Z","publication_date":"2017-10-24T00:00:00.000Z","cpc_codes":["G02F","G02F","G02F","G02F","G02F"],"num_claims":13,"abstract":"Polarization state in retro-reflective arrays may be controlled throughout the optical path of a retro-reflective retro-imaging setup to enhance system efficiency. A polarization beam splitter layer and a retarder layer placed in front of the retro-reflector array may be oriented such that polarized light is used as source, source input light is efficiently reflected at the polarization beam splitter layer toward the retro-reflective layer, and polarization is converted to circular upon first pass through retarder layer. The polarization may also be oriented at or near 45° with respect to input polarization state, light may be retro-reflected and reconverged at the retro-reflective layer, and converted to linear polarization state. The light may then be rotated about 90° with respect to input linear state, and/or passed through the polarization beam splitter layer upon second pass to form the reconvergent image."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Control of polarization and diffractive artifact resolution in retro-imaging systems","description":"Polarization state in retro-reflective arrays may be controlled throughout the optical path of a retro-reflective retro-imaging setup to enhance system efficiency. A polarization beam splitter layer a","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9798154","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9798154","citation_suggestion":"Patentable. \"Control of polarization and diffractive artifact resolution in retro-imaging systems\" (US-9798154). https://patentable.app/patents/US-9798154","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9798154","json":"https://patentable.app/api/llm-context/US-9798154","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T08:59:29.553Z"}