1. Why install a shutter ? The shutter is installed between the lens and the detector, and can be started either manually or by setting time intervals. Its purpose is to compensate for temperature measurement deficiencies of the detector. Currently, due to limitations in process technology and software, both low-end foreign detectors and domest...

Yes, we can. Whether replacing parts or changing the design of components, Quanhom will try it best to meet your needs and provide you with professional advice and solutions. As one of the advanced opto-mechatronics component companies, we are delighted to serve our global partners with comprehensive services. The GLE12014D lens co...

Yes, we can. Quanhom believes that customization is not only an essential service, but also what we always pursuit. As one of the advanced opto-mechatronics component companies, we are delighted to serving our global partners matching different OLEDs with comprehensive services. In the past five years, we have offered a variety of custo...

The consistency of products to great content determines the product quality, only high consistent product can offer a better purchasing and user experience for clients. QUANHOM is an infrared specialty team that adheres to the principle of “Quality Foremost; Service Centered; Progress Guided; Innovation Driven” to practically implement ...

At present, the switching time of the dual field of view lens of the QUANHOM team is ≤3S. There are many factors that influence the parameter. Firstly, for the optical design aspect, the moving distance of the moving lens group plays a defining role in the switching time. Secondly, in the mechanical design aspect, the design of the cam ...

What is the difference between super-large field of view infrared optical lens and ordinary infrared optical lens? ...

A. In the continuous zoom process, the distance between each lenses has been strictly determined. At the structural design step, there are strict requirements on the size of the lens group and the lens barrel, and it is not easy to adjustB. Increasing the axial length of the guide rail can make the lens group more stable du...

1. Security monitoring: border security, urban security, coastal monitoring2. Infrared temperature measurement: industrial temperature measurement, human body temperature measurement, intelligent breeding3. Outdoor night vision: outdoor exploration, outdoor observation, outdoor search and rescue4. National defense and coastal defense: b...

Diamond-like carbon (DLC) membrane is an amorphous carbon membrane. The membrane contains a certain number of sp3 bonds, giving it a series of excellent properties close to diamond. It has the advantages of low deposition temperature and large area deposition.Among various hard membranes, DLC membrane can be positioned as a membrane mat...

If the motor stops suddenly:1. First check whether the cam of the lens has turned to the limit position.Because the limit switch can disconnect the circuit when the cam turn to the limit position, making the motor unable to run in one direction.2. If the cam of the lens is not in the limit position, check the wiring and power supply. ...

When designing infrared optical components, various factors related to the optical materials used must be considered. These factors include refractive properties, optical transmission, non-thermal properties, hardness/durability, environmental sensitivity, weight/density, manufacturing technology, and cost. Some of these factors are sti...

Anti-reflective coating (English: Anti-reflective coating, AR) is a surface optical coating that increases transmittance by reducing light reflection. In complex optical systems, it can improve contrast by reducing scattered light in the system. Many coatings include transparent film structures with different refractive indices. The th...

Atmospheric window fefers to some bands of celestial radiation that can penetrate the atmosphere. Due to the absorption and reflection of radiation by various particles in the earth's atmosphere, only radiation from celestial bodies in certain wavebands can reach the ground. Divided into optical window, infrared window and radio window ...

1. The space enclosed by the MTF curve, the horizontal axis and the vertical axis, the larger the area, the better, and the better the lens imaging performance. The flatter the MTF curve, the better. The flatness indicates the imaging uniformity of the edge and center of the lens.2. The closer the sagittal curve and the meridian curve, ...

Although without zooming and automatic focus function, even installed with a continuous zoom lens or motorized lens, the thermal imaging module can't realize zooming or automatic focus function, We can realize these functions in the case of not changing thermal imaging module by using other subsidiary products like automatic focus contr...

There are three main formats of analog video signals; PAL,NTSC and SECAM, in which PAL is called P system and NTSC is called N system, as is often said.PAL (phase Alternating Line) is a TV system established in 1965. With the exception of NTSC in parts of North America and East Asia and SECAM is adopted in most parts of the world, which...

There are two general types of spectral filters for thermal imaging cameras.One is a neutral density filter (ordinary filter), which attenuates the energy of the entire wavelength range to the same degree. For example, neu...

Title The peripheral vision imaging system can stare and image the space within the range of 360° azimuth angle and certain pitch angle.This panoramic thermal imaging so...

l Higher resolutionl Strong fog penetration abilityl Low-light imaging (night vision capability)The glow of the atmosphere at night contains shortwave infrared components. Shortwave infrared can be imaged in the lowest sta...

The target radiation can only reach through the air and be imaged on the infrared thermal imaging camera. In addition to attenuating the target's radiation, the air will also add some interference signals during the ...

The actual optical system cannot achieve strict temperature compensation, that is, in a certain temperature range, the image surface of the system cannot be consistent with the change of the lens barrel with complex struct...

1) Mechanical (electromechanical) active temperature compensation From the basic theory of optics, we know that when the axial position of a lens (or lens group) in the optical system is changed, the focal plane posit...

In the process of athermal design of the infrared optical system, the following issues should be paid attention to. (1) With the change of temperature, the original aberration compensation relationship is destroyed, and the best focus position of the system may change nonlinearly with the change of temperature. (2) For the reflect...

Infrared optical systems often work in environments with a relatively large temperature range. The thermal expansion coefficient of optical materials and mechanical materials and the change in refractive index of optical materials with temperature will seriously affect the performance of the optical system. Compared with optical ma...

The basic starting point of optical athermalization technology is to use the temperature characteristics of different optical materials, such as linear expansion coefficient, refractive index temperature gradient, etc. ...

The total radiation emitted by the target in the mid-wave infrared and long-wave infrared bands can be obtained by integrating the Planck formula. At different temperatures of the target, the total infrared radiation in the medium-wave and long-wave bands is shown in the left figure below; the ratio of the total infrared radiati...

The answer is not necessarily.It can be understood that the resolution of the human eye is limited, too high-resolution microdisplays such as UHD cannot improve the effect much, and the 4μm pixel almost matches the human eye.Quanhom GE25 supports screen size of 0.61 inches and a pixel size of 4μm. In general, an SVGA re...