Two longtime employees at test and measurement company Labsphere Inc., a Halma company of Sutton, N.H., have been promoted. Richard Corbyn, as the new director of standard products and services, will steer the company’s reflectance standards and integrating spheres product line. He was previously the director of corporate quality and of international sales and business development. Vikrant Mahajan has been named global product manager of LED and solid-state lighting. Most recently, he served as product manager for the company’s UV-2000S UVA/UVB sunscreen analyzer and as business development manager for South Asia, a role in which he will continue.