On-axis and off-axis digital hologram generating device and method

Abstract

Provided are on-axis and off-axis digital hologram generating device and method. The on-axis and off-axis digital hologram generating device includes a controller and an input window configured to receive user input of hologram property information. The controller is configured to access a phase file of an object stored in a storage device, convert the phase file of the object into object phase information in a useable form, generate digital object light information based on a light property of object light input by a user and the converted object phase information, and generate a digital hologram based on (i) the received hologram property information, (ii) the generated digital object light information, and (iii) digital reference light information inputted by a user.

What is claimed is: 
     
         1 . An on-axis and off-axis digital hologram generating device, the device comprising:
 a controller; and   an input window configured to receive user input of hologram property information,   wherein the controller is configured to
 access a phase file of an object stored in a storage device; 
 convert the phase file of the object into object phase information in a useable form; 
 generate digital object light information based on a light property of object light input by a user and the converted object phase information; and 
 generate a digital hologram based on (i) the received hologram property information, (ii) the generated digital object light information, and (iii) digital reference light information inputted by a user. 
   
     
     
         2 . The device of  claim 1 , wherein physical information of the object light comprises light wavelength information, wavenumber information, and amplitude information of the object light, and the digital object light information comprises an object recorded position, object phase information, and light property information. 
     
     
         3 . The device of  claim 1 , wherein the on-axis and off-axis digital hologram generating device further comprises:
 a digital object light information input unit configured to receive input of the digital object light information.   
     
     
         4 . The device of  claim 1 , wherein the hologram property information is a property parameter of an image sensor to which the digital hologram is generated and recorded, and an interference mode parameter. 
     
     
         5 . The device of  claim 4 , wherein the property parameter of the image sensor comprises a resolution, a bit depth, and a pixel size, and the interference mode parameter is one among an on-axis interference mode, an off-axis interference mode, and a space movement off-axis interference mode. 
     
     
         6 . An on-axis and off-axis digital hologram generating method, the method comprising:
 receiving, via an input window, user input of hologram property information;   accessing, by a controller of the on-axis and off-axis digital hologram generating device, a phase file of an object stored in a storage device;   converting, by the controller, the phase file of the object into object phase information in useable form;   generating, by the controller, digital object light and information based on a light property of object light input by the user, and the converted object phase information; and   generating, by the controller of the on-axis and off-axis digital hologram generating device, a digital hologram based on (i) the received hologram property information, (ii) the generated digital object light information, and (iii) the received generated digital object light information.   
     
     
         7 . The method of  claim 6 , wherein the digital object light is expressed as U DO (x,y)=U L (x,y)U O (x,y)U OP (x,y), where U DO (x,y) represents the digital object light, U L (x,y) represents light property information of the object light, and U O (x,y) represents converted phase information of the object, and U OP (x,y) represents position information of the object, and the digital hologram is expressed as U H (x,y)=U DO (x,y)U RS (x,y)+U DR (x,y)U RS (x,y)U 1 (x,y), where U H (x,y) represents the generated digital object hologram, U DO (x,y) represents the digital object light, U DR (x,y) represents digital reference light, U RS (x,y) represents property parameter information of an image sensor used to input a hologram input by the user, and U I (x,y) represents interference mode parameter information input by the user. 
     
     
         8 . The method of  claim 6 , wherein physical information of the object light comprises light wavelength information, wavenumber information, and amplitude information of the object light needed to digitally generate light, the physical information of reference light includes light wavelength information, wavenumber information, and amplitude information of the reference light needed to digitally generate light, and the hologram property information is a property parameter of an image sensor to which the digital hologram is to be generated and recorded, and an interference mode parameter. 
     
     
         9 . The method of  claim 8 , wherein the property parameter of the image sensor comprises a resolution, a bit depth, and a pixel size, and the interference mode parameter is one among an on-axis interference mode, an off-axis interference mode, and a space movement off-axis interference mode.