When you change the resolution of an image, you are saying how many pixels you want to live in each inch of the image. For example, an image that has a resolution of 600 ppi will contain 600 pixels within each in of the image. 600 is a lot of pixels to live in just one inch, which is why 600ppi images will look very crisp and detailed. Now, compare that to an image with 72ppi, which has a lot fewer pixels per inch. As you've probably guessed, it won't look nearly as sharp as the 600ppi image. Resolution rule of thumb: When scanning or photographing, always try and capture the image at the largest resolution/quality.

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Both of these images display at the exact same size even though their resolution varies. This is because the pixel dimensions are what really matter when working with web images. Notice that the pixel dimensions of each image are the same and therefore both images will display at the same size even though they have differing resolutions.

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The Fresnel lenses in our range rely on halogen lamps on the one hand but are increasingly using the latest generation of COB LEDs. These light sources save energy, emit less heat and are cheaper to purchase. In addition, the LED Fresnel lenses impress with a high color rendering index: The CRI of the spotlights sometimes has values of over 90.The LED Fresnel lenses are also convincing in other respects: Equipped with a 200 warm white LED, the color temperature of the EUROLITE LED THA-250F Theatre Spot, for example, is 2.800K and the color rendering index (CRI) is 92. The spot's beam angle is also freely selectable between 5 and 38 degrees. The spotlight can be controlled via DMX, RDM, stand-alone, LED PC-Control 512, Light Captain and Light'J. Therefore, the spotlight is particularly suitable for sensitive applications such as video productions or studios, but can also be used on stages in theaters.

It's better to have more information than not enough! It's much easier for image editing applications, like Photoshop, to discard any unwanted image information (reducing the size of an image) than it is to create new pixel information (enlarge an image).

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Jul 3, 2023 — The eyepiece or ocular lens is the part of the microscope closest to your eye when you bend over to look at a specimen. An eyepiece usually ...

The physical size of an image refers to the dimensions in which it would print (ex: 8.5" x 11") or the pixels dimensions of an image displayed on the web (ex: 600 pixels x 800 pixels).

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For web images, we must focus on the pixel dimensions. Look at the two images below - one is 300ppi and the other is 72ppi.

Of course, you will also find classic Fresnel spotlights with halogen lamps in our range. The EUROLITE Theatre Spot 2000 Fresnel sw, for example, is a professional theater spotlight, controllable via Plug and Play. It is supplied with a color filter frame and protective grille and convinces with an impressive light output. The beam angle of the Fresnel lenses ranges from 10 to 45 degrees. Like the spotlights with COB LED, the Theatre Spot – as its name suggests – is particularly suitable for use in theaters or studios.If you have any questions about our LED spotlights, their color temperature or CRI value, our staff will be happy to answer them. We will also be happy to advise you on the right illuminants for your next project!

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May 18, 2018 — An AR Window, like the one offered by AdsReality, looks like a standard video display for advertisements, but it is much more than that.

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Screen images are different than images for printing because we must think about the pixel dimensions of monitors, TVs, projectors, or display, rather than PPI. Use PPI for printed images, but use pixel dimensions of the image are what really determine the size of the image and quality of how it will display on the web or devices.

The idea has been for many years that images should be saved with a resolution of 72 PPI. . But the common misconception is that this resolution or PPI value is the deciding factor of image quality for web images, where it is actually about pixel dimensions (http://medialoot.com/blog/high-resolution-web/).

The French physicist Augustin Jean Fresnel originally developed it for lighthouses in 1822: the Fresnel lens. The innovative feature of this lens: The refractive surface consists of steps that gradually reduce its thickness. The lens, thus, consists of prismatic sections and is composed of parallel strips or concentric circular rings. Thanks to this design, considerable amounts of material are not needed, yet a Fresnel lens has the same refractive power as a "normal" lens.This also affects the use of such a lens in spotlights. This is because nowadays the field of application of Fresnel lenses is not limited to lighthouses, as they are also an integral part of spotlights used on theater stages and in television studios. In this function, the spotlights provide uniform light without hot spots or other noticeable drawings. An easily adjustable beam angle, especially in combination with barn doors, guarantees precise illumination – a fact that is of immense importance, especially in theater or film. After all, not all light is the same: A scene can quickly take on a different meaning through different lighting and, thus, change the character of a play.

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Some professional, high-end printers may require images to be up to 600 ppi for printing. Always check with your printer/publisher about required image resolution before submitting images.

The most important imaging component in the optical microscope is the objective, a complex multi-lens assembly that focuses light waves originating from the ...

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Thorlabs offers ground glass and engineered optical diffusers as well as diffuse reflectors and hexagonal light mixing rods. The ground glass diffusers are ...

Non-professional printers such as inkjet, laser, and other common printers can best print images that are at least 200 to 300 ppi and higher. For images that just need to "look good", 200 ppi will work. Photographic prints are recommended to be at least 300 ppi. Images for large format poster printing can be around 150-300ppi depending on how close the image will be viewed.* *Viewing Distance Factor

The memory size is how much memory an image file takes up on a hard drive. For example, a JPG image saved on a computer may be 2 MB (megabytes), meaning that it will require 2MB of space on a drive to store that image.

Just like web images, images for projectors should match the pixel dimensions of the projector. As with computer monitors, projectors also have their own display dimensions. For example, most 4:3 aspect projectors have a display of 1024 x 768 pixels, so an image that is 1024 x768 pixels with a 72 PPI resolution would be an ideal image size to be displayed from a projector.

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Higher resolutions mean that there more pixels per inch (PPI), resulting in more pixel information and creating a high-quality, crisp image.

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Aug 30, 2024 — The higher the number of line pairs per millimeter (lp/mm) that can be distinguished, the better the resolution of the system. Line pairs are ...

Description ... MicroMate is specially designed for microscope focus stacking.The motor on MicroMate is 400 step 0.9 degree. For a clear display effect, we ...

Images with lower resolutions have fewer pixels, and if those few pixels are too large (usually when an image is stretched), they can become visible like the image below.

Web images work differently than printed images. With printed images, we must pay close attention to resolution to ensure we get a high-quality print.

Each monitor is different and has a different resolution, so it makes it difficult to design a website that contains images that will display perfectly on every type of display. Over the years, technology has improved and so has the quality of our displays. Most popular are Apple's new retina displays that are on the most recent Macbooks, iPhones, and iPads.