From anti-reflective lenses, which reduce glare, to C Shield, which protects your lenses from daily wear and tear, lens coatings can enhance your vision, extend the life of your lenses, and provide added comfort.

FOVtofocal length calculator

Field of View (FoV): The area visible to the camera lens, measured in degrees. A wider FoV captures more of the scene but may reduce image quality. A narrower FoV provides greater detail but covers less area.

Viewangle

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Low refractive index: Calcium fluoride has a relatively low refractive index of 1.43, making it useful for optical components such as lenses and prisms. Low ...

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Adding an anti-glare coating after you've already purchased your glasses is not recommended for the following reasons: It could cost more and affect quality: Since the coating application technology requires a coating to be added at the time that the lens is cut, it could cost more to apply it after purchase and you may not get the same quality. Your lenses are not factory “fresh” anymore: Once your lenses have been exposed to skin oils, the coating may not stick well, which could defeat its effectiveness and longevity. Scratches on lenses could be magnified: If there’s a scratch, applying the coating will magnify it.

fov和焦距的关系

Introducing Vieworks' full lineup of line scan cameras.

Add to any frames, with or without prescription. Compatible with single vision, Standard Progressives, and Premium Progressives.

While most lens manufacturers offer anti-reflective coatings, the performance and durability vary.  Top performers in coatings change their composition slightly for each type of lens material that they’re applied to — this is called “index matching”. It increases a stronger bond and better durability under harsh temperature conditions. Our premium C Shield coating is index-matched to the specific lens material you choose.

Corning Gorilla Glass DX is used for the Power Glass lens and is designed to be scratch-resistant, but it is not as durable as the sapphire crystal lens. The ...

Field of viewvs angleof view

Having an anti-reflective coating minimizes reflection and glare, reducing eye strain and allowing for clearer and more comfortable vision. It’s especially helpful in highly reflective conditions such as driving at night. Anti-reflective coating also reduces reflection on the surface of your lens, so people who are looking at you can see your eyes more clearly. Lenses without anti-reflective coating can create distracting and unattractive reflections.

Focal Length: The distance between the lens and the image sensor, measured in millimeters. A shorter focal length provides a wider field of view, while a longer focal length offers a narrower field of view.

Easily wipe your lenses free of dust and lint. C Shield reduces static electricity buildup on the lens surface, decreasing dust accumulation.

Germanium Lenses · Germanium lenses are optical lenses fabricated from germanium (Ge) primarily due to its unique optical properties — particularly its high ...

DOF calculator

This Nike Swingman jersey with Dri-FIT technology commemorates Edwards' breakout Olympic performance and his bright future as a leader of Team USA. Brand: Nike.

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Anti-reflective coating eliminates ghost images as well as reduces eye-fatigue from fluorescent lighting and driving at night.

Calculate the camera's field of view by entering the focal length and selecting the sensor from the list to find out the horizontal and vertical FOV. For cameras with a variable focal length, you can enter a range, allowing the calculator to compute the FOV for each zoom setting.

There’s no way to make lenses completely scratch-proof. Scratch-resistant coating will help to strengthen the surface of your lenses and improve durability, so they’re less likely to get scratched or damaged if you accidentally drop them or rub them against an abrasive material.  Adopting smart care habits is the best way to maintain the quality of your lenses. Store them in a cushioned case when you're not wearing them. When cleaning them, use a microfibre cloth (never paper towel, your t-shirt, or any other type of rough fabric) and lens cleaning solution or mild dish detergent.

Field of view

No more worries when walking in the rain! C Shield's hydrophobic lens coating means water droplets won’t stick to your lenses.

•Unattractive reflection on the surface of the lens​•Irritating glare causes reduced vision clarity and eye strain, making it difficult to see in some conditions

Hyperfocal distance calculator

Note: The calculator assumes the camera is mounted horizontally. The actual field of view may vary depending on the camera's orientation and the lens distortion.

Anti-reflective lenses are designed to minimize distracting reflections and glare on the surface of the lens to improve vision and comfort.

CMOS Sensor Size: The physical dimensions of the image sensor in the camera, typically expressed in inches. The sensor size affects the field of view, depth of field, and image quality.

A six-in-one lens coating solution. These factors work together to keep your glasses cleaner, stronger, and smarter – so you can focus on all the things in front of you.

field ofview中文

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Utilize our CCTV Design Tool , where FOV values are readily available for thousands of cameras from leading manufacturers in the industry. In our tool, you can effortlessly simulate real-world conditions for actual cameras to plan your CCTV installation. This comprehensive CCTV Camera Planner provides an intuitive interface for professionals and enthusiasts alike, making it simpler than ever to design and optimize your surveillance system with precision and ease.

• Look great with no unattractive or distracting glare on lens surface• More visual comfort in all lighting conditions for clearer, safer vision

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