On the afternoon of June 9, the representative of China Abrasives Import and Export Corporation came to the School of Materials Science and Engineering to hold a corporate promotion conference. Zou Wenjun, Dean of the School of Materials Science and Engineering, and the counselor of the School Office and more than 200 students attended the exhibition. Promotion meeting. 
At the promotion meeting, Director Liu of China Abrasives Import & Export Co., Ltd. introduced the company's development overview, business philosophy, technology management and production scale. Subsequently, the principals of both schools and enterprises conducted in-depth exchanges on student internship bases and school-enterprise cooperation. The representatives of the enterprises gave detailed answers to the questions about the internship position, the nature of the work, and the conditions of treatment.
After the meeting, 15 students and the journals participated in the summer internship of China Abrasives Import and Export Corporation.
At the promotion meeting, Director Liu of China Abrasives Import & Export Co., Ltd. introduced the company's development overview, business philosophy, technology management and production scale. Subsequently, the principals of both schools and enterprises conducted in-depth exchanges on student internship bases and school-enterprise cooperation. The representatives of the enterprises gave detailed answers to the questions about the internship position, the nature of the work, and the conditions of treatment. After the meeting, 15 students and the journals participated in the summer internship of China Abrasives Import and Export Corporation.
Spherical lenses are used for beam focusing and beam expansion. Our precision lenses start with optical materials designed for high transmittance over the desired spectral range. Careful consideration is given to create lens shapes with high surface accuracy and surface quality.
A "spherical lens" is a lens whose surface has the shape of (part of) the surface of a sphere. On this page, we will determine some values for the focal length of a spherical lens. It include plano convex lens, plano concave lens, meniscus lens, Achromatic Lens
Spherical Lens,Spherical Optical Lens,Plano Convex Lens,Large Convex Lens
Changchun Ruiqi Optoelectronics Co.,Ltd , https://www.ruiqi-optics.com