This is Tateishi from ALPSALPINE CO., LTD. who is in charge of planning and development of new product.
Alps Alpine has been producing lenses for many years and notably enjoys a sizeable share of the market for aspherical lenses for optical communication,
but we also develop aspherical lenses for other markets, too. This article provides an introduction to the industry’s smallest achromatic lenses.
https://tech.alpsalpine.com/e/products/faq/aspherical_glass_lens/achromat.html
