System and method for automatic lens assembling and testing

Abstract

A method includes assembling a first lens and a second lens to form a first optical assembly in a first assembly and validation line; testing the first optical assembly in the first assembly and validation line; securing a coupling between the first lens and the second lens if a testing result satisfies a predetermined condition; and disassembling the first optical assembly into the first lens and the second lens if the testing result does not satisfy the predetermined condition; The method also includes prior to stacking the first lens and the second lens to form a second optical assembly, adjusting at least one of an optical center, a tilt, or a polarimetric angle of at least one of the first lens or the second lens in a second assembly and validation line; and stacking the first lens and the second lens to form the second optical assembly.

What is claimed is: 
     
         1 . A method, comprising:
 assembling a first lens and a second lens to form a first optical assembly in a first assembly and validation line;   testing the first optical assembly in the first assembly and validation line;   securing a coupling between the first lens and the second lens if a testing result satisfies a predetermined condition;   disassembling the first optical assembly into the first lens and the second lens if the testing result does not satisfy the predetermined condition;   prior to stacking the first lens and the second lens to form a second optical assembly, adjusting at least one of an optical center, a tilt, or a polarimetric angle of at least one of the first lens or the second lens in a second assembly and validation line; and   stacking the first lens and the second lens to form the second optical assembly.   
     
     
         2 . The method of  claim 1 , wherein testing the first optical assembly in the first assembly and validation line further comprises:
 emitting, by a display disposed at a first side of the first optical assembly, a first image light to the first optical assembly;   transmitting, by the first optical assembly, the first image light as a second image light; and   capturing, via an image capturing device disposed at a second side of the first optical assembly, the second image light transmitted through the first optical assembly.   
     
     
         3 . The method of  claim 2 , wherein testing the first optical assembly in the first assembly and validation line further comprises:
 examining at least one of a contrast or a ghosting effect of a pattern formed by the second image light captured by the image capturing device.   
     
     
         4 . The method of  claim 1 , wherein prior to stacking the first lens and the second lens to form the second optical assembly, adjusting at least one of the optical center, the tilt, or the polarimetric angle of at least one of the first lens or the second lens in the second assembly and validation line further comprises:
 performing a centering measurement for at least one of the first lens or the second lens, and   adjusting the optical center of at least one of the first lens or the second lens when the centering measurement does not satisfy a predetermined centering condition.   
     
     
         5 . The method of  claim 1 , wherein prior to stacking the first lens and the second lens to form the second optical assembly, adjusting at least one of the optical center, the tilt, or the polarimetric angle of at least one of the first lens or the second lens in the second assembly and validation line further comprises:
 performing a tilting measurement for at least one of the first lens or the second lens, and   adjusting the tilt of at least one of the first lens or the second lens when the tilting measurement does not satisfy a predetermined tilting condition.   
     
     
         6 . The method of  claim 1 , wherein prior to stacking the first lens and the second lens to form the second optical assembly, adjusting at least one of the optical center, the tilt, or the polarimetric angle of at least one of the first lens or the second lens in the second assembly and validation line further comprises:
 performing a polarimetric measurement for at least one of the first lens or the second lens, and   adjusting the polarimetric angle of at least one of the first lens or the second lens when the polarimetric measurement does not satisfy the predetermined polarimetric condition.   
     
     
         7 . The method of  claim 6 , wherein performing the polarimetric measurement for at least one of the first lens or the second lens, and adjusting the polarimetric angle of at least one of the first lens or the second lens when the polarimetric measurement does not satisfy the predetermined polarimetric condition further comprises:
 performing a measurement relating to a polarization effect of a quarter-wave plate included in at least one of the first lens or the second lens; and   performing a quarter-wave plate angle adjustment when the measurement relating to the polarization effect of the quarter-wave plate does not satisfy a predetermined condition relating to the polarization effect of the quarter-wave plate.   
     
     
         8 . The method of  claim 7 , further comprising recording a quarter-wave plate angle when the measurement relating to the polarization effect of the quarter-wave plate satisfies the predetermined condition relating to the polarization effect of the quarter-wave plate. 
     
     
         9 . The method of  claim 6 , wherein performing the polarimetric measurement for at least one of the first lens or the second lens, and adjusting the polarimetric angle of at least one of the first lens or the second lens when the polarimetric measurement does not satisfy the predetermined polarimetric condition further comprises:
 performing a measurement relating to a polarization effect of a reflective polarizer included in at least one of the first lens or the second lens; and   performing a reflective polarizer angle adjustment when the measurement relating to the polarization effect of the reflective polarizer does not satisfy a predetermined condition relating to the polarization effect of the reflective polarizer.   
     
     
         10 . The method of  claim 9 , further comprising recording a reflective polarizer angle when the measurement relating to the polarization effect of the reflective polarizer satisfies the predetermined condition relating to the polarization effect of the reflective polarizer. 
     
     
         11 . The method of  claim 1 , further comprising:
 coupling a display to the second optical assembly; and   performing an alignment validation of the first lens and the second lens included in the second optical assembly using the display disposed at a first side of the second optical assembly and an image capturing device disposed at a second side of the second optical assembly.   
     
     
         12 . The method of  claim 11 , further comprising fine-tuning an alignment between the first lens and the second lens based on a result of the alignment validation.