KTP crystal is mostly used as nonlinear crystals for frequency doubling of solid-state Nd:YAG crystal or Nd:YVO4 crystal laser, as it has large nonlinear optical coefficients, wide angular bandwidth and small walk-off angle, broad temperature and spectral bandwidth.

Survey Prisms are for Surveying or land surveying is the technique, profession, and science of determining the terrestrial or three-dimensional positions of points and the distances and angles between them.

Hollow Retroreflectors are constructed of three first-surface mirrors assembled by a proprietary process into a mutually-orthogonal inside corner. Incident Light is Reflected Back to the Source Hollow Lightweight Design

Optical Gold Coated Mirrors Average Reflectance >94% from 800 nm to 20 µm Shape could be customized: Round, Square, Elliptical, Right angle prisms Material could be customized: Fused silica, Pyrex, N-BK7

Precision Aspheric Lenses Collimate or Focus Light with a Single Element Reduce spherical aberration Reduce overall system weight

Germanium Windows are applied for IR Wavelength 1. 3 - 5μm for mid-infrared applications 2. 3 - 12μm for broadband multispectral applications 3. 8 - 12μm for thermal imaging applications