The focus of the objective lens is very important for thermal imaging device since it influences such optical parameters as magnification and field of view. Thermal detection also depends on the focus of objective lens of thermal optic device. Different applications and goals require different parameters of the objective lenses.
Thermal scopes come with three objective lenses differing in focal distance 19mm, 38mm, 50mm which is reflected in their names.
In the Pulsar model range thermal imaging cameras with 30Hz and 50 HZ are marked with head letters H and X, e.g. Quantum HD or Quantum XQ respectively.
Nowadays thermal imaging gained many fans due to its numerous advantages over classic night vision devices. The first and the main difference that underlies all benefits of thermal vision scope is its basic principle of operation. The detector can perceive even the slightest differences in temperature of various objects. The signal from detector is processed in electronic modules of thermal imaging camera and transferred to the screen.
Temperature difference between the object and the background can often count up to a few dozen degrees and because of that on the screen the object is greatly distinguished from the background.
Night vision devices based on image tube intensifiers are dependent on remaining light and this fact limits their use to sceneries with at least a small amount of remaining light present. In other words if there are no remaining light night vision devices cannot produce a decent image. In these conditions a night vision scope requires additional source of light and this role is performed by an auxiliary IR illuminator. The illuminator lights up the scene, the light gets reflected from the objects and gathered by the optics of night vision device.
Another significant advantage of thermal cameras over night vision devices based on image tube intensifiers is their ability to see through smoke, fog, haze, or any other unfavorable weather conditions. Night vision scopes are not able to see through fog or smoke.
When Pulsar thermal imaging scopes are designed and developed many factors are taken into account. Each mode has different settings of contrast and brightness and is designed with regard to the prevailing temperatures in certain conditions. There are some factors describe why it is better to choice Pulsar thermal imaging scopes.
The first and the most important is the image quality. The objective and eye piece optics, sensor, display, electronics, all these components must work flawlessly together to ensure that even the slightest details are distinguishable.
The second important factor is that housing materials must not be heavy since real life applications often involve stressful physical activity where additional weight can become an obstacle. Design of Pulsar devices also takes into account the ergonomics of use. It must be done in such a way as to make sure that all buttons are under the right fingers.
The devices must not be battery consuming since it will be hard to find replacement for batteries. Normal lifetime of a set of batteries in Quantum thermal imagers can reach 6 hours if video out is deactivated. When a new rechargeable battery pack PULSAR DNV is used the lifetime can reach up to 10 hours.
Also All thermal imaging devices have three modes of collaboration. “Automatic” mode is better for pure observation purposes, “Semi-automatic” mode is better for video, “Manual” calibration mode or silent is helpful when someone needs to stay covert during observation at close distances.
Thermal imaging technology has been developed for military purposes in the early 50-s. But
Time passed and with the development of technology new fields of application appeared.
The most common fields of application for thermal imaging optics today are:
Pulsar is one of the leading manufacturers of night vision and thermal optic devices on the hunting, outdoor and security market. The brand Pulsar belongs to the company Yukon Advanced Optics Worldwide JSC. Yukon has more than 25 years’ experience in producing optic devices for the hunting and outdoor market.
Manufacturing of night vision devices is a complicated process that involves not only the knowledge of optics but also the knowledge of electronics and other fields.
Pulsar products are distinguished for their high technological level, image quality and numerous professional features.
Thermal imaging cameras are among the most popular devices on the market and enjoy good reputation.
The company is constantly developing its product line and releasing new products. All Pulsar products are highly demanded on the market and company is doing everything to make sure its clients are satisfied.
Wide distribution network of the company helps to offer its products in many countries of the world.
Pulsar team always strives to achieve the best possible result in every aspect of its activity!