4. Revenue

Product Revenue

The Company manufactures infrared imaging cameras, optical assemblies, optical components and infrared materials. Optical components include precision molded glass aspheric optics, molded and diamond-turned infrared aspheric lenses, and other optical elements produced using other fabrication techniques. The Company designs, develops, manufactures, and distributes optical systems, assemblies and components utilizing advanced optical manufacturing processes, multidisciplinary engineering and manufacturing technologies, and assembly and integration services. The Company also provides engineering services and performs research and development for optical solutions for a wide range of optics markets.

Revenue Recognition

Revenue is generally recognized upon transfer of control, including the risks and rewards of ownership, of products or services to customers in an amount that reflects the consideration the Company expects to receive in exchange for those products or services. The Company generally bears all costs, risk of loss, or damage and retains title to the goods up to the point of transfer of control of products to customers. Shipping and handling costs are included in the cost of goods sold. Revenue is presented net of sales taxes and any similar assessments.

Customary payment terms are granted to customers, based on credit evaluations. The Company does not have any contracts where revenue is recognized, but the customer payment is contingent on a future event. Deferred revenue is recorded when cash payments are received or due in advance of the Company’s performance. Deferred revenue was $0.5 million and $0.7 million as of June 30, 2025 and 2024, respectively, and is included in accrued liabilities in the accompanying Consolidated Balance Sheets.

Nature of Products

Revenue from the sale of optical components and assemblies is recognized upon transfer of control, including the risks and rewards of ownership, to the customer. The performance obligations for the sale of optical components and assemblies are satisfied at a point in time. Product development agreements for engineering services are generally short-term in nature, with revenue recognized upon satisfaction of the performance obligation, and transfer of control of the agreed-upon deliverable. Visimid has one longer-term order with a defense customer which includes both product development and hardware deliverables where similar revenue recognition criteria are applied.

We categorize our products into four product groups: (i) infrared components, (ii) visible components, (iii) assemblies and modules, and (iv) engineering services.

Revenue by product group for the fiscal years ended June 30, 2025 and 2024 was as follows: