39-31-BLUE

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Optics is the study and application of light, and lenses form an important part of optical tools. The 39-31-BLUE are lenses designed to be used in the field of optical engineering. This article will provide an overview of its application field and working principle.

Application Field

The 39-31-BLUE is a designed for optical engineers who require a reliable and simple device to measure angles and distances of objects. It is a type of monocular lens that allows the user to accurately measure angles and distances of objects with a single eye. This makes it ideal for use in engineering, architecture, construction, urban planning, and surveying. It is also used by military and law enforcement personnel for surveillance and reconnaissance tasks.

Working Principle

The 39-31-BLUE is a monocular lens that uses a combination of convex and concave spherical lenses to achieve its purpose. It has an adjustable eyepiece with a focal length of 39-31-BLUE millimeters. The lens allows the user to look at the distance or object at an angle, which results in an image that is both magnified and inverted. The image is then magnified further using a cross or reticule to allow more accuracy in measuring. The lens also has built-in parallax and field of view compensators, which helps to reduce parallax error and increase accuracy.

Conclusion

The 39-31-BLUE is a reliable and simple device for measuring angles and distances. It uses a combination of convex and concave spherical lenses, as well as built-in parallax and field of view compensators, to ensure accuracy. This makes it ideal for use in a variety of fields such as engineering, architecture, construction, urban planning, and surveying. It is also used by the military and law enforcement for surveillance and reconnaissance.

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