美国沃爱康光学Halma Volk Optical Inc     
非球面光学行业的领先者福科光学的总部位于美国俄亥俄州的门托 (Mentor)，并在全世界各地分布有办事处和经销商。福科光学是英国豪迈国际有限公司的子公司。

福科光学是英国豪迈国际有限公司的子公司。豪迈国际有限公司是国际电子、安全和环境技术市场的领军企业，拥有3000多名员工，年营业额超过6亿美元（2006年度）。豪迈公司在世界各地拥有40多家子公司，专业生产危险探测和生命保护相关的产品。这些公司正在能源、水资源、基础建设、环境保护和医疗保健等领域支持中国繁荣的经济持续不断的发展。豪迈国际有限公司是一家在伦敦证券交易所上市的公司，在中国设有制造工厂，并在上海和北京设有代表处。

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.