LBTEK polymer achromatic half-wave plates (AHWP) are made with an N-BK7 glass substrate and liquid crystal polymer (LCP) material, consisting of three layers of liquid crystal true zero-order waveplates arranged at specific angles. In each layer of the LCP film, the liquid crystal molecules' fast axis orientation is consistent, and the three layers are designed to overlap, creating the overall fast axis orientation of the achromatic waveplate. The phase delay is controlled by adjusting the thickness of each LCP film layer and the relative fast axis angles.

LBTEK polymer achromatic half-wave plates have a phase delay of π within the design wavelength range and are commonly used to rotate the polarization direction of linearly polarized light. These achromatic waveplates feature nearly true zero-order characteristics, supporting large incident angles and exhibiting lower sensitivity to wavelength and temperature changes. Unlike traditional single-wavelength waveplates, these waveplates are not limited to specific working wavelengths and can achieve changes in polarization direction across a wavelength range. Compared to traditional achromatic waveplates, they offer features such as adjustable wavelength ranges, customizable substrate sizes and shapes, and the ability to support ultra-large apertures, providing more flexibility to meet customer needs.

The standard polymer achromatic half-wave plates are available in design wavelength ranges of 400-700 nm, 600-800 nm, and 700-1100 nm, with component sizes of Ø25.4 mm and Ø50.8 mm. The one-inch standard version is mounted in a standard SM1 lens tube, with the tube surface engraved with the product model, phase delay, working wavelength, and fast axis identification line. The two-inch standard version comes unmounted, with a single-side flat edge, aligned with the fast axis direction, making it easy for customers to identify and use.

LBTEK polymer achromatic half-wave plates are commonly used to rotate the polarization direction of linearly polarized light within the design wavelength range. After passing through the achromatic half-wave plate, the optical path difference generated is λ/2, and the phase delay is π. The two-inch polymer achromatic half-wave plate comes unmounted, with the optical element featuring a single-side flat edge, aligned with the fast axis direction, making it easy for customers to identify and use.