US 12,147,193 B2
Inline scanning holography system for phosphor and transmitter
Tae Geun Kim, Seoul (KR)
Assigned to Cubixel Co., Ltd., Seoul (KR)
Appl. No. 17/642,251
Filed by CUBIXEL CO., LTD., Seoul (KR)
PCT Filed Sep. 11, 2020, PCT No. PCT/KR2020/012293
§ 371(c)(1), (2) Date Mar. 11, 2022,
PCT Pub. No. WO2021/054680, PCT Pub. Date Mar. 25, 2021.
Claims priority of application No. 10-2019-0113621 (KR), filed on Sep. 16, 2019.
Prior Publication US 2022/0317625 A1, Oct. 6, 2022
Int. Cl. G03H 1/04 (2006.01)
CPC G03H 1/0443 (2013.01) [G03H 2001/0447 (2013.01); G03H 2001/0463 (2013.01); G03H 2222/36 (2013.01); G03H 2223/22 (2013.01); G03H 2223/24 (2013.01); G03H 2225/32 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An inline scanning holography system comprising:
a linear polarization direction converter configured to provide a linearly polarized beam by changing a polarization direction with phase-delaying the linearly polarized beam incident from an outside;
a signal generation unit configured to generate a phase modulation signal for varying a phase delay value with time and apply the phase modulation signal to the linear polarization direction converter;
a collimator configured to expand the linearly polarized beam passing through the linear polarization direction converter;
a polarization sensitive lens configured to receive the expanded linearly polarized beam from collimator and configured to generate a first spherical wave of right-handed circular polarized light having a negative focal length and a second spherical wave of left-handed circular polarized light having a positive focal length,
wherein the collimator is located between the linear polarization director converter and the polarization sensitive lens, wherein the linear polarization direction converter is located at a front end of the polarization sensitive lens;
a polarizer configured to pass only a beam component in a predetermined polarization direction therethrough among components of the generated first and second spherical waves;
a scanning unit for scanning a phosphor that is a fluorescence object by using an interference beam generated between the first and second spherical waves passing through the polarizer; and
a first photodetector configured to detect a fluorescent beam diverged from the phosphor.