Pike Street Capital LP, a Seattle-based private equity firm, has made an investment in Apollo Optical Systems, a designer and manufacturer of optical parts and systems.

Based in the greater Rochester, N.Y. area, AOS serves OEM customers in the industrial metrology, virtual reality, commercial, LED lighting, medical instrument, automotive sensor and LIDAR (light detection and ranging) and defense markets. Pike Street brings operational and investment experience in the optics technology sector, and the AOS investment looks to serve as a foundation from which to expand into the market.