The antai high-tech equipment co., LTD., specialized in digital goggles, night-vision goggles from the literal translation of name should call image intensifier, its main core is a photomultiplier components, generally known as the image intensifier tube, through the amplification of faint light to simulate the real field environment, so in its working principle with the traditional optical telescopes are fundamentally different.The development history of night vision device actually reflects the development history of modern military, and the cooperation with the military has contributed to the development of night vision technology.Several of the world's biggest night vision equipment brands are of dubious origin to the U.S. military. For example, ZIYOUHU and ITT, two of the world's largest night vision equipment brands, are the U.S. military's largest suppliers of night vision equipment.The principle of digital night vision device is totally different from infrared night vision device.Digital night vision device USES not the image intensifier as the image intensifier, but the low illumination CCD as the image intensifier.The low-light CCD can identify very dark light and then convert it into a visible digital signal, which is displayed on the LCD screen inside the night vision device.

Guoan tai is specialized in military telescopes. Although the basic principle of military telescopes is no different from that of ordinary civil telescopes, due to the use environment,There are many differences between the observed objects.Ever since the invention of the military telescope, it has been praised as a battlefield.From the beginning of its equipment, it was the boss of the officer's "three treasures" (telescope, compass, map).Handheld binoculars are typically between 7 and 10 times multiple.It's not that higher-power telescopes are hard to do, but long practice has found that 7-10 times is the best range of multiples for handheld telescopes.The standard is strictly adhered to by military binoculars. In military service, there are no more than 10 times of binoculars, and the most commonly used binoculars are 7 times and 8 times.What many people don't know is that a military hand-held telescope is the same size as a regular civilian hand-held telescope.Both are between 7 and 10 times larger, with a maximum of 12 times larger civilian handheld telescopes.No military binoculars were more than 10 times larger.

Shenzhen guoan tai equipment co., LTD. Is a professional rangefinder.Laser ranging has high angular resolution and strong anti-interference ability, which can avoid the multipath effect and ground object interference problems caused by microwave close to the ground, and has the advantages of light weight, compact structure and easy installation and adjustment. It is one of the most ideal instruments for high precision ranging at present.After the construction of railway tunnel, the surrounding rock has a slow change trend, and the convergence can be measured with the rangefinder.Taking advantage of the characteristics of extremely short duration of laser pulse and large instantaneous power, even if there is no cooperative target, the distance measurement can be made by receiving the diffused reflection signal of the measured target.The principle of pulsed laser ranging is similar to that of radar ranging. The pulsed laser is used to send single laser pulse or laser pulse strings to the target. The counter measures the round trip time when the laser pulse reaches the target and returns to the receiver.The principle of laser ranging with pulse method is shown in figure 1. The ranging formula is d=ct/2.Where, d is the measurement distance, c is the speed of light, and t is the distance to and from the ranging signal.

Guoan tai is dedicated to the thermal imager program.Due to the ability of non-contact infrared thermal imaging technology, the temperature of the high resolution imaging, can generate high quality images, can provide many information measuring target, make up for the deficiency of the human eye, so has been in energy saving, power systems, civil engineering, automobile, metallurgy, petrochemical, security, and many other industries are widely used, the future prospects of the development of more.Military level of vanadium oxide crystal detector, made in America, many traditional polycrystalline silicon sensors have other characteristics: relatively temperature horizon (MFOV) is 1, temperature measuring size small and long time working temperature stability, high qualitative, small temperature drift is more suitable for the long-distance test service life is long, twice of the traditional life of detector.Multi-function mode, integrated with the new infrared development technology: with black body built in, the exposure time of automatic non-uniformity correction (NUC processing) can be selected, which is more suitable for the measurement of multi-point temperature and radiation rate display (four points) with small temperature difference of measured object.Good product performance, meet the demand of customer on-site testing and research: up to 0.05 ℃ high temperature resolution pixels, 320 x 240 = 320 pixels, image is clear and fine monolithic battery memory can store 1000 image 2.5 hours working time usd 2.0 data transmission, image processing software and report automatically generated.Meets ergonomic design, more convenient field testing: weighs just 1.3kg, very lightweight 3.5-inch wide LCD, rotates 180 degrees, adjusted to a better viewing Angle, can take infrared and visible images, reduce workload and error rate of laser alignment.

Guo an tai professional is committed to the white light sight.A prism is like the Kepler telescope system. In addition to a set of lenses, a prism can be used.The latter method is widely used in handheld telescopes.In 1904 Zeiss, a German company, developed a prism for a rifle.The prism makes the path of light zigzag, which reduces the longitudinal size of the optical system but increases the transverse size.Fixing a prism is more difficult than fixing a lens.

Shenzhen guoan tai equipment co., LTD. Specializes in low light night vision equipment.In the mid-1970s, americans made a breakthrough in the development of new high-performance photocathode, and in the 1980s developed a third-generation image intensifier using the negative electron affinity potential gaas photocathode, and based on this, developed the aviator's night vision glasses.The second and third generation night vision equipment is still the mainstream of western military equipment.The electron affinity potential refers to the energy value between the bottom of the semiconductor conduction band and the vacuum energy level, which characterizes the difficulty of the electron escape from the material when the photoelectric effect occurs.The smaller the electron affinity, the easier it is to escape.If the electron affinity is zero or negative, it means that the electron is in a state where it can leave at any time. The photoelectric cathode made of material with negative electron affinity, the electron excited by photons can escape as long as it spreads to the surface.Gallium arsenide is the right material for scientists.Because of the difficulty in producing the highly sensitive negative electron affinity photocathode, the technology is now in the hands of a few developed countries, some of which can only rely on imports.Since the 1980 s, manufacturers in the United States, according to the requirements of the U.S. army for night vision glasses of the third generation image intensifier tubes, in 1998 the U.S. army and lytton and ITT company sign the contract, both the performance of the third escrow seems to have reached the limit, but the company raise the weapon in the bid - no membrane micro channel plate as intensifier.To prevent ion feedback from damaging the delicate photocathode, the third generation tube is coated with an ion barrier film.Lytton has found a way to protect the photocathode without using ion-barrier membranes. Without reducing the lifetime of the night vision device, the detection distance and resolution can be significantly improved, especially in very dark environments.The new night vision device also USES automatic door control power supply and no halo imaging technology.The photocathode voltage can be controlled automatically to improve night vision when the ambient light is too strong or illumination is available.Corona free imaging can greatly reduce the halo caused by electron scattering in the gap between the photoelectric cathode of the enhancement tube and the plate.The new technology makes the performance of the night vision device to get another leap, so it is called the fourth generation night vision device

Shenzhen guoan tai equipment co., LTD. Fusion multifunctional night vision device scheme.Launched multi-functional fusion products, with CCD imaging + thermal imaging + rangefinder integrated machine.With internationally advanced high-performance electronic imaging technology, it has excellent performance, small size, light weight, clear imaging, simple operation, and measured distance through physical ranging.The outer shell is made of aviation metal, which is suitable for harsh environment such as wind, sand, rain and fog.The product can be connected to a helmet or used separately as a handheld night vision telescope.It can be applied to military observation, border and coastal defense reconnaissance, public security surveillance, evidence collection, customs anti-smuggling, etc. It is an ideal equipment for the public security department, armed police force, special police force and guard patrol.

Guoan tai specializes in digital telescopes.Digital telescope is a kind of digital new product combining optical-mechanical and electrical, which can be used in military, public security, measurement and civil fields.According to different structures, digital telescopes can be divided into integrated digital telescopes and integrated digital telescopes.The integrated digital telescope's telescope and digital camera's optical path are independent from each other. The integrated digital telescope's telescope and digital camera share a set of optical path. The integrated optical path of digital camera is obtained by the optical path of telescope.Each of the two structures has its own characteristics, and the design needs in-depth analysis.Circuit design and analysis of digital camera: the core components of digital camera include image sensor, digital signal processor, image memory, output interface, etc.Image sensor is very important for digital camera image quality. It has two types: CCD and CMOS.High light sensitivity and low noise, but high power consumption and high cost;CMOS has low power consumption, low cost and high integration.The effective pixel count of the image sensor means the number of points at which the image is recorded on the image sensor.The photosensitive surface size of image sensor is closely related to the image quality and field of view of digital camera.Therefore, image sensor type, effective pixel number and photosensitive surface size are crucial to digital telescope circuit, optics and overall design.Digital camera image quality can be evaluated by resolution, color reduction and white balance.