REVENUE RECOGNITION (Details - Revenues) - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022
Disaggregation of Revenue [Line Items]
Revenues	$ 4,824,289	$ 5,886,961	$ 9,145,544	$ 10,972,262
Engineering Design Services [Member]
Disaggregation of Revenue [Line Items]
Revenues	2,265,217	1,701,611	4,166,216	3,344,578
Optical Components [Member]
Disaggregation of Revenue [Line Items]
Revenues	1,979,875	2,580,140	3,883,186	5,232,821
Medical Device Products & Assemblies [Member]
Disaggregation of Revenue [Line Items]
Revenues	579,197	1,005,210	1,096,142	1,794,863
Technology Rights [Member]
Disaggregation of Revenue [Line Items]
Revenues	$ 0	$ 600,000	$ 0	$ 600,000