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美國沃愛康光學Halma Volk Optical Inc     
非球面光學行業的領先者福科光學的總部位于美國俄亥俄州的門托 (Mentor)，并在全世界各地分布有辦事處和經銷商。福科光學是英國豪邁國際有限公司的子公司。

福科光學是英國豪邁國際有限公司的子公司。豪邁國際有限公司是國際電子、安全和環境技術市場的領軍企業，擁有3000多名員工，年營業額超過6億美元（2006年度）。豪邁公司在世界各地擁有40多家子公司，專業生產危險探測和生命保護相關的產品。這些公司正在能源、水資源、基礎建設、環境保護和醫療保健等領域支持中國繁榮的經濟持續不斷的發展。豪邁國際有限公司是一家在倫敦證券交易所上市的公司，在中國設有制造工廠，并在上海和北京設有代表處。

Volk Optical Inc. is the premier designer and manufacturer of the highest quality ophthalmic lenses. The first aspheric indirect ophthalmoscopy lens was developed by Dr. David Volk 50 years ago. This led to the patented, double aspheric designs of the 20D, 78D and 90D lenses, the leading standards in the ophthalmic industry.

Continual improvement saw the evolution and development of the 2nd generation – the Super Series lenses, to the unsurpassed imaging you can achieve today, with our 3rd generation Digital Series Lenses.

Volk’s unmatched image quality can be appreciated across our comprehensive range of imaging products, including Gonio lenses, direct and indirect laser lenses and a full range of surgical imaging products, including our unique Optiflex? Surgical Assistant.

See the Difference
All lenses are not the same; different lenses will not deliver the same image quality. Ensure you get the highest quality lenses to deliver the highest resolution, distortion-free imaging. The image below represents an actual side by side comparison of a Volk 20D lens compared with a non-Volk lens over a 2mm grid. The photo is not retouched.