Optical Components

Precision optical components, polarization optics, crystals, assemblies, megapixel CCTV lenses, 20 MP machine vision lenses, and optical system solutions. Advanced measurement systems include Prism Master, spheric lens measurement systems, interferometers, and spectrophotometers. ISO 9001, IATF/TS16949, ISO 14001, and ISO 13485 certified with SGS.

CASTECH is a global leader in nonlinear optical crystals, laser crystals, precision optics, and laser components for laser applications, optical communications, biomedical VR/AR, and lidar. With ISO 9001 and IAFT 16949 quality management system, we consistently enable our customers from prototype to mass production stage.

Manufacturer of diamond-turned IR optics, metal mirrors, Ge/Si aspheric and diffractive optics, parabolic and off-axis mirrors, lenses, prisms, wedges, windows, laser optics, thin-film coatings, beamsplitters, filters, polymer imaging optics, large-size windows/mirrors, optomechanical assemblies, mounts.

Custom optics, such as spherical lenses, dome lenses, prisms, windows, filters, cylindrical lenses, aspherical lenses, mirrors, beamsplitters, optical assemblies. Also custom lens design and optical systems design.

Designs, develops, and manufactures a wide array of durable thin-film optical coatings in the UV, VIS, and IR (3 to 12 microns) region. Manufactures high-precision optical windows, spherical and aspherical lenses, wedges, prisms, and infrared domes in bulk volumes.

Manufactures and sells Fresnel lenses, lenticular lenses, sheet prisms, and linear Fresnel lenses. Manufactures any type of lens to customer specifications.

Optical devices supplier and manufacturer of acousto-optic modulators, acousto-optic frequency shifter, avalanche photodiodes, fiber coil and ASE source, couplers, isolator, circulator, FRM, WDM, narrow linewidth laser diode, semiconductor optical amplifier, EDFA, used for for fiber laser, sensor systems, and FOG.

Founded in 2005, DayOptics is a leading integrated optical components manufacturer. Focusing on the field of optics, we are dedicated to establishing ourselves as a prominent brand known for reliable optical components. We specialize in the design, R&D, production, and sales of optical components such as wave plates, mirrors, PBS, crystals, filters, windows, prisms, lenses, and more.

As a matured and professional global supplier with a sophisticated engineering background, we specialize in the manufacturing and sales of electro-optics, including laser crystals and components, laser mirrors, nonlinear crystals, wave plates, polarizers, optical windows and lenses, IR camera lens assemblies/optical filters, scintillators, and more.