The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 02, 2025
Filed:
Jun. 06, 2025
Agency for Defense Development, Daejeon, KR;
Suyong Lee, Daejeon, KR;
Nam Hun Park, Daejeon, KR;
Taek Jeong, Daejeon, KR;
Jaesung Heo, Daejeon, KR;
Yonggi Jo, Daejeon, KR;
Jihwan Kim, Daejeon, KR;
Duk Young Kim, Daejeon, KR;
Zaeill Kim, Daejeon, KR;
AGENCY FOR DEFENSE DEVELOPMENT, Daejeon, KR;
Abstract
An apparatus for pseudo thermal light source ghost imaging and range sensing using narrow-band spontaneous emission includes: a pseudo thermal light source including a resonator type laser diode; a temperature controller configured to control a temperature of the pseudo thermal light source; a current controller configured to control a current of the pseudo thermal light source; a beam splitter configured to split a laser beam emitted from the pseudo thermal light source into a first beam and a second beam; and a temporal correlator configured to infer a target range to an object through temporal coherence between the first beam and the second beam, wherein the pseudo thermal light source oscillates a laser beam having second order coherence when a specific current is applied according to temperature.