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Laser imaging system for underwater object

Jul. 07, 2020

Laser imaging technology for underwater targets, as an emerging ocean detection technology, directly achieve the imaging, ranging and positioning effects on underwater targets. It has very important military and civilian value in shallow offshore. CLZ Precision Optics Co., Ltd. provides you with custom optical components, including optical lenses, optical domes, optical windows, optical reflectors and optical prisms. At the same time, we provide optical coating services for custom optical components according to your requirements and in accordance with applications.

The laser imaging system is mainly composed of a laser transmitter, a striped tube detector, a synchronous trigger system, a transmitting and receiving optical system, a scanning imaging system and a computer. The laser beam emitted by the laser transmitter passes through the transmitting optical system and the scanning system and then strikes the target. The echo signal reflected by the target passes through the scanning optical system and the receiving optical system and then enters the striped tube detector.

The emitting optical system is mainly composed of a collimating lens combined with a cylindrical lens, the collimating lens group is composed of a convex lens and a concave lens. The emitting optical system must use optical lenses with high damage threshold. The optical receiving system is mainly composed of a spherical convex lens. The scanning imaging system includes a optical mirror.

The optical power used by the underwater laser imaging system is almost above the watt level. As the optical power increases, the imaging distance and resolution are improved to a certain extent. Therefore, when designing the collimator of the underwater laser imaging system, use as few optical elements as possible in order to minimize the loss of laser energy. It is not suitable to use cemented lenses (glued surfaces are easily damaged by high-power lasers). Due to the good monochromaticity and small divergence angle of the laser, the collimator does not need to correct the positive chromatic aberration, but only needs to correct the spherical aberration, sine aberration, and astigmatism in the primary aberration.

Laser imaging technology for underwater targets has become a new type of ocean detection technology, which has the advantages of high precision and fast speed. Its structural composition includes optical elements such as optical lenses, optical mirrors, and optical domes. CLZ Precision Optics Co., Ltd. Provides you with custom optical components that meet your application design. With many years of experience and knowledge, we produce and process optical components of various optical materials (optical lenses, optical domes, optical windows, optical mirrors, optical prisms). At the same time, custom optical components can be coated with dielectric coating or metal coating according to your needs. If you need custom optical components, please contact