JH640-800 Cooled HgCdTe FPA Long Range Surveillance Thermal Camera RS232

1 Introduction

1.1 Principle

The common camera is an equipment of visible imaging. Its image-forming principle is based on the difference between reflect and reflectance on the target surface. But the infrared thermal camera is different totally, it utilized the thermal contrast difference between targets and surrounding environmental conditions to forming the thermal radiation energy density images, we call it as “thermal imaging”. As same as light wave and radio wave, the infrared radiation is a kind of electromagnetic wave. The wave band diagram refers to Figure 1.

Figure 1 Infrared wave band diagram

Because the human vision is not sensitive to infrared light, the thermal camera have to transform the infrared light to visible light and change the infrared image to visible image. As shown Figure 2, the function of transformer consists of 2 steps. Firstly, through the infrared thermal detector to transform the thermal radiations into electrical signals, which amplitude can reflect the strength of thermal radiation; Secondly, to display the electrical signals on monitor and get the visible infrared thermal image.

Figure 2 Principle of infrared imaging

JH640-800 long range surveillance thermal camera utilizes third generation HgCdTe 640x512 MWIR focal plane arrays (FPA) detector. The detector transform the target thermal radiations to electrical signals, after the process of a detailed analysis of electrical signals on image processing circuit boards, detector output analog and digital video signals together; the host PC control the thermal camera via RS232 communication interface. The basic principle diagram refers to Figure 3.

Figure 3 Principle of thermal camera

1.2 Features

JH640-800 long range surveillance thermal camera is a matured and high reliability product which developed by our company independently to meet military standard. To ensure the thermal camera can totally meet the military standard, we choose high-quality material and adopt top-ranking manufacture technology. Now the thermal camera has widely applied in the fields of aerospace, military industry, border & coast defense and city safety surveillance. This high-tech cooled infrared thermal camera is desperate needed in all-weather target detection, recognition and pre-warning system.

The thermal camera has advantages of small size, high sensitivity, easy to control, long surveillance range, continuous zoom (focal length is 80~800mm, the complete focusing movement time is not more than 6s), all weather operations, and good integration. It can be used as a single machine for monitoring, also can be integrated in the electro-optical pod used as forward looking infrared (FLIR) component.

Specifications:

Wuhan JOHO Technology Co., Ltd founded in 2009, is a high-technology company based on infrared thermal imaging technology. Joho has built a complete infrared industrial chain from the bottom up: from core component to comprehensive electro optical infrared surveillance and tracking system.

Our products includes thermal security cameras, electro-optics/infrared search and track system (EO/IR search and track system) and EO surveillance system, surveillance radar, laser range finder, fiber optical gyro, special power sources (thermal battery and silver-zinc battery Ag-zn battery) and OEM solutions,Personalized products and services to provide customers with a significant advantage. Due to the high quality of our products and reliable performance, Joho products are widely used in different applications, security and surveillance, law enforcement, maritime patrol, fishery administration, surveying and mapping and so on.

Wuhan JOHO brings together the world's top professional talent and technology, has a highly qualified international personnel. Set from software development to hardware design, system testing, technical services are completed by professional and technical personnel. We have two R & D base in Hubei Zhongxiang and Wuhan City, well-known institutions of higher learning and research institutions at home and abroad, work closely with more than 30 patents and 15 software copyrights, a number of the core technological achievements and technical indicators at the international advanced level.

We have the following platforms: IR imaging platform, laser range finder and continuous waveband radar, which has gained great achievements in image treatment, recognize, and image tracking filed. Meanwhile, the Optical axis consistency and the Optical axis point memory control as well as the servo platform control have met the military class demand. The internal structure chamber treatment Connection technology innovation, the layout of single part and electrical cabin pass the complex environment test and customer stick check.

Quality product performance and good reputation, our products are not only successful sales in China, and have been exported to more than 120 countries and regions in the world, including: Burma,  Russia, Saudi Arabia，Egypt, Turkey, Brazil , India, the United Arab Emirates, Saudi Arabia and other countries, the products are subject to a great welcome and praise.

Our goal is simple: to sell the best machines at the best prices, and provides industry-leading customer service. We personally get to know each of our customers, and we know how to discover the most valuable part of our business is Wuhan JOHO, to help others achieve their goals.

Our company attracts a group of experienced senior experts to develop new products. This enables us not only supply our brand products, but also supply OEM and customized solution as request to expand our cooperation.

For more detailed information on our products, please do not hesitate to contact us! We welcome your inquiries, and look forward to working with you.