Yu Diamond expects net profit to increase by 5%-15% in the first half of the year

I. Estimated performance of the current period 1. Performance forecast period: January 1, 2012 - June 30, 2012 2. Estimated performance II. Performance forecast pre-audit This performance forecast has not been pre-audited by certified public accountants. III. Reasons for changes in performance The semi-annual operating results in 2012 increased in the same period of the previous year, mainly due to the increase in the company's main business income during the reporting period as the company's operating scale expanded. During the reporting period, non-recurring gains and losses were estimated to be between RMB 4 million and RMB 6 million. IV. Other relevant explanations The performance forecast data is the estimated data initially estimated by the company's finance department. The specific data for the first half of 2012 will be disclosed in detail in the company's 2012 semi-annual report. Investors are advised to pay attention to investment risks.

Sapphire Ball Lens

Ball lenses Spherical ball lenses are commonly used for laser collimating and focusing, laser-to-fiber coupling, fiber-to-fiber coupling, and fiber-to-detector coupling. Larger spheres are easier to handle and ease the sensitivity of translational alignment. However, smaller spheres fit into smaller packages.

Sapphire and Ruby ball lenses are both made from Al203. Ruby or Ruby-Doped sapphire owes its red color to traces of chromium oxide (chromium content for ruby balls is typically >0.5%). While their physical and chemical properties are basically the same, their optical properties are somewhat different. Sapphire has superior optical transmission qualities. Ruby Balls are easier to see and therefore easier to handle for physical applications.

Ball Lens Half-Ball Lens

Specification of our ball lens:
*Material:BK7 or other optical glasses,optical crystal materials
*Diameter:1mm - 40mm
*Dimension Tolerance:+/-0.005mm
*Surface Quality:40-20
*Sphericity:0.005mm
*Coating:optional

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China Star Optics Technology Co.,Ltd. , https://www.opticsrealpoo.com