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REVENUE RECOGNITION (Details - Revenues) - USD ($)
3 Months Ended 6 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2021
Dec. 31, 2020
Disaggregation of Revenue [Line Items]        
Revenues $ 3,897,041 $ 2,785,450 $ 6,233,385 $ 5,543,351
Engineering Design Services [Member]        
Disaggregation of Revenue [Line Items]        
Revenues 1,636,482 847,988 2,127,253 1,437,220
Optical Components [Member]        
Disaggregation of Revenue [Line Items]        
Revenues 1,486,006 1,398,213 2,945,332 2,874,298
Medical Device [Member]        
Disaggregation of Revenue [Line Items]        
Revenues $ 774,553 $ 539,249 $ 1,160,800 $ 1,231,833