Open Access
30 January 2020 Use of complementary wavelength bands for laser dazzle protection
Gunnar Ritt, Bernd Eberle
Author Affiliations +
Abstract

The use of complementary wavelength bands in camera systems is a long-known principle. The camera system’s spectral range is split into several spectral channels, where each channel possesses its own imaging sensor. Such an optical setup is used, for example, in high-quality three-sensor color cameras. A three-sensor camera is less vulnerable to laser dazzle than a single-sensor camera. However, the separation of the individual channels is not high enough to suppress cross talk, and thus, all three channels will suffer from laser dazzling. To solve that problem, we suggest two different optical designs in which the spectral separation of the channels is significantly increased. The first optical design is a three-channel camera system, which was already presented earlier. The second design is a two-channel camera system based on optical multiband elements, which delivers undisturbed color images even under laser dazzle.

CC BY: © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.
Gunnar Ritt and Bernd Eberle "Use of complementary wavelength bands for laser dazzle protection," Optical Engineering 59(1), 015106 (30 January 2020). https://doi.org/10.1117/1.OE.59.1.015106
Received: 22 November 2019; Accepted: 14 January 2020; Published: 30 January 2020
Lens.org Logo
CITATIONS
Cited by 4 scholarly publications.
Advertisement
Advertisement
KEYWORDS
Sensors

Cameras

Transmittance

Optical sensors

Image fusion

Optical filters

Image filtering

RELATED CONTENT


Back to Top