News & Reviews

7 Great Tips for Choosing the Best Sunglasses for Hiking

When it comes to hiking we all know that we need a good pair of boots, a high-quality sunscreen and a backpack that holds all of the essentials.However we often neglect one of the most important things we need when hiking.Yes whether it’s a day trip or a multi-day trip, you also need a great pair of sunglasses.Filtering out the harmful UV Rays whilst you’re outdoors is key to protecting your eyes and ensuring they stay healthy. With only one pair of eyes, we need to invest in protecting them...

Comparative study of 2.7 μm emission of Ho 3+ desensitized Er 3+ in tellurite and bismuth glass

L. Zhang and T. Xue, “Discrepancies between Pr3+ and Ho3+ de-sensitized Er3+:2.7 μm emission,” J. Lumin. 178, 22–26 (2016). [Crossref] Y. Tian, T. Wei, X. Jing, J. Zhang, and S. Xu, “Enhanced 2.7- and 2.9-μm emissions in Er3+/Ho3+ doped fluoride glasses sensitized by Pr3+ ions,” Mater. Res. Bull. 76, 67–71 (2016). [Crossref] P. Kuan, X. Fan, W. Li, X. Liu, C. Yu, L. Zhang, and L. Hu, “High-efficiency ∼2 μm laser in a single-mode Tm-doped lead germanate composite...

ODG launches rugged smart glasses for heavy industry and 'extreme environments'

Image: Osterhout Design Group Osterhout Design Group (ODG) announced a new version of its smart glasses designed for heavy industry applications and for use in extreme environments. The R-7HL (HL stands for "Hazardous Location") is a rugged version of the company's existing R-7 glasses, that will cost $3,500 and begin shipping in the second quarter of this year, a press release said. According to the...