| Schedule of revenue by product |
| | Three Months Ended | | | Nine Months Ended | | | | March 31, | | | March 31, | | | | 2025 | | | 2024 | | | 2025 | | | 2024 | | Infrared components | | $ | 3,640,517 | | | $ | 3,638,674 | | | $ | 9,363,477 | | | $ | 11,046,129 | | Visible components | | | 2,838,346 | | | | 2,688,475 | | | | 8,901,076 | | | | 8,055,714 | | Assemblies and modules | | | 1,852,482 | | | | 829,265 | | | | 3,803,364 | | | | 3,077,987 | | Engineering services | | | 836,282 | | | | 542,761 | | | | 2,924,920 | | | | 912,230 | | Total revenue | | $ | 9,167,627 | | | $ | 7,699,175 | | | $ | 24,992,837 | | | $ | 23,092,060 | |
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