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Lens and Optical Injection Molding Company
Optical Plastic Injection Molding Services with Global Quality Standards
THY Precision is a leading provider of optical injection molding services for plastic components that meet international quality standards. We specialize in producing TV LED light beams, lens holders, lens barrels, lens spacers, lens retainers, lens hoods, optical mouse lenses, and transparent parts, among others.
One of our key strengths is our advanced ultra-precision CNC diamond turning lathe, the Nanotech 250 UPL. This state-of-the-art machine allows us to produce spherical and aspheric optical lenses, mirrors, mold inserts, freeform optics, and mechanical components with sub-nanometer level surface finishes and sub-micron accuracies. We work with a wide range of materials to provide our clients with the best possible custom plastic molding solutions for their ultra-precision applications, in the following areas:
Micro-optics on non-flat substrates
Contact lenses plastic mold manufacturing
Optical fibers
Optical components
Diffractive optical elements
Optical Plastic Injection Component Manufacturer by THY Precision
As a leader in the field of optical injection molding, THY Precision excels in both lens molding and optical molding. Our unwavering commitment to the highest quality and precision benchmarks in the optical component manufacturing sector ensures that the products we deliver, from sophisticated lens moldings to advanced optical moldings, are of the utmost efficacy and reliability. If you require unparalleled precision in optical components, contact THY Precision to explore how we can meet your needs.







Contact Lenses Plastic Mold Manufacturing
THY Precision manufactures contact lens molds using advanced all-electric injection molding machines to ensure exceptional repeatability, precision, and compliance with ISO Class 8 cleanroom standards. High repeatability is a critical requirement in lens mold production, enabling consistent quality while supporting high-volume, cost-efficient manufacturing.
By utilizing direct-drive all-electric injection molding technology, THY Precision achieves significant gains in operational efficiency. Compared with conventional hydraulic systems, these machines can reduce energy consumption by up to 75%, while also delivering superior process stability, faster cycle times, and enhanced dimensional consistency—key factors in precision contact lens molding.
For manufacturers specializing in contact lens mold production, the ability to reproduce molds with ultra-high accuracy on a continuous basis is essential. THY Precision’s manufacturing approach ensures tight tolerances and reliable performance across every production cycle, supporting scalable mass production without compromising quality.
Automation plays an equally vital role in maintaining cleanroom integrity and production efficiency. Each lens mold is typically produced with robotic systems handling critical tasks such as automated demolding, tool unloading, and packing into sterile carriers. This high level of automation minimizes human contact, enhances cleanliness, and ensures consistent output in medical-grade lens mold manufacturing.
Plastic Injection Molds for Silicone Hydrogel Contact Lens
After the contact lens design is finalized, a precision two-part mold is manufactured using medical-grade plastic materials. The mold accurately forms both the front (base curve) and back (posterior curve) surfaces of the lens, ensuring consistent dimensions, reliable optical performance, and high-volume contact lens production.





High-Precision Contact Lens Mold Manufacturing in ISO Class 8 Cleanroom