美国颐光科技有限公司是一家集开发、制造和销售光学元器件、光电仪器和与光学系统有关的仪器设备的高技术企业，同时也是多家美国和德国光学产品公司的中国区代理，产品包括：
光学元器件：光学滤光片、透镜、激光镜、波片、窗口材料、分束片、偏振片、扩束镜、标准具、镀膜元件和光具座，等；
光电仪器和产品：各种光谱仪器、单色仪、便携式光谱仪、太阳能模拟器、各种光源、大功率光纤激光器、光纤放大器、热成像仪及设备，等；
光学系统：电光源测试系统、发光二极管测试系统、医用微量元素测试仪（原子吸收谱）；激光制版和印刷系统的激光头分系统，等；

CrownTech, Inc.

CrownTech, Inc. is a high tech company, which develops, manufactures, and sells optics, optical instruments, and optical related equipments. CrownTech, Inc. is also the representative in China region of some US and Germany optical companies. CrownTech, Inc.'s products include:
Optics: windows, prisms, lenses, beam expanders, laser mirrors, beam splitters, polarizers, etalons, filters, telecommunication optics and optical mounts, etc. .
Optical instruments: various instruments for spectroscopies, monochromators, compact spectrometers, solar simulators, light sources, high power fiber lasers, fiber amplifiers, thermo cameras, etc..
Optical systems: light source testing systems, LED testing systems, medical rare-element testing system (atomic absorption), laser head in plate making and printing systems, etc. .