Lightspeed Design to Debut Polarization Modulator

Lightspeed Design announced that it will debut the new DepthQ Polarization Modulator for single lens HD 3D projection solutions at the International Association of Amusement Parks and Attractions Expo. The new modulator, available in two sizes, will be paired with the DepthQ HD 3D Projector to demonstrate small applications and the Christie Mirage Projector to demonstrate large theaters.

The new DepthQ Polarization Modulator electronically switches the polarization orientation of light passing through it. In combination with a polarization-preserving screen and a single-lens stereoscopic 3D projector, the modulator enables high-brightness, low-ghost viewing using lightweight and comfortable passive 3D eyewear. The DepthQ HD 3D Projector with the small modulator can produce image sizes up to 9ft. (2.74m) wide. Larger HD 3D projectors with the large modulator can produce image sizes up to 25ft. (7.62m) wide.

DepthQ Polarization Modulator

The DepthQ Polarization Modulator is manufactured by LC-Tec Displays, a company with extensive experience in developing, manufacturing and bringing to the market novel LCD products based on emerging technologies. The modulator utilizes a unique combination of separate liquid crystal elements bonded together, enabling both high polarization efficiency over visible wavelengths from 400 to 750 nm (predominantly achromatic spectral response) as well as fast transition switching speeds (<0.5ms at room temperature) between polarization states at frequencies such as 120Hz, 144 Hz (maximum 400Hz). Efficient, high-speed switching between the eyes ensures bright, low-crosstalk, flicker-free operation.

The system includes both the liquid-crystal modulator with its mounting and its control unit. A standard sync output from your graphics card or projector is supplied to the control unit, which then conditions the signal to match the modulator's required input. The optical window is also heat-tolerant and can operate at temperatures up to 75 degrees Celsius.

Source: Lightspeed Design