Eyepiece Lens
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Naval telescope Photo Mugs
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DescriptionThis achromatic telescope has a tapering mahogany barrel with brass fittings, including a single draw tube, an objective lens cap and a pivoted eyepiece cover. It is typical of the sort of telescope used on board ship in the 19th century.. Features
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Understanding the Power of a Compound Microscope
Probably a common apparatus at most high school science laboratories, the compound microscope use the popular combination of dual lenses and light reflection. In a world becoming infinitesimally smaller in each generation, microscopes of all types, caliber, sizes and capabilities can be found virtually everywhere - from laboratories in high school campuses, colleges, universities, to research and development laboratories of pharmaceutical companies and a host of other manufacturers.
Getting to Know Microscopes
The compound microscope has more than one lens - usually two - to do its job. The most basic of all types - the simple microscope uses a single lens. Impliedly, it offers a better view and more capabilities. Here are basics of microscopy:
1. Light Source.
Illumination is a basic requirement in microscopy. Some microscopes have mirrors that reflect light from sources outside of the microscope. Others, like the fluorescence microscope have their own specific sources of illumination, in its case a mercury-vapor lamp or a xenon arc lamp. Those using specific light sources are generally more powerful as these lights are more intense than generic day or lamplights used by ordinary compound microscopes.
2. Objective Lens.
All microscopes have objective lens - the lens closest to the object under probe; not all microscopes have eyepieces. Although the common image the word conjures is that of an ocular device, there are highly advanced microscopes that do not have an eyepiece. Some microscopes have three eyepieces for normal viewing and for mounting a camera, like the trinocular microscope. Instead, there are mounted on cameras and or video displays for a state-of-the-art, 3D view of microscopic objects or organisms. If you follow popular American TV, you would have already seen this in shows like House, MD.
3. Magnification Controls.
Yes, the term sounds impressive but it's also very basic. Microscopes, regardless of power and/or grade, allow you to control magnification levels with adjustment knobs. Usually, the magnification power is a factor of the objective lens and the eyepiece. In all cases, the maximum magnification is 2000x.
Practical Applications
Compound microscopes are used in many fields and for various purposes. The type of compound microscope you need and the magnification levels you require is determined by what you want to see, the specimen you're using and what you want to do with the images. Incidentally, manufacturers have developed a range of microscopes with specific applications and users in mind. It's now common to find different grades of one type of microscope. Student-grade compound microscopes - probably an inexpensive tool - are found in virtually all high school laboratories across the globe. Professional-grade compound microscopes can be found in research laboratories where you usually find white coats. Fortunately, manufacturers of this equipment like Meji Techno, Nikon, and Olympus make customizing microscopes possible with a range of selections that come with various accessories. You can configure your own microscope to suit your specific application.
But wait! That's not all. Working closely with its user base, these companies are constantly working toward improving their existing line with creative and imaginative input from people who use their products the most. So, have you and your compound microscope met?
CanScope - complete solution for all your microscopy needs.
Contact: 1-877-56SCOPE(72673) or info@CanScope.ca
About the Author
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compare the function of the objective lens of a telescope with the objective lens of a microscope?
1. Compare the function of the objective lens of a telescope with the objective lens of a microscope. In each case:
a. Do you want a large focal length or small? why?
b. Where is your "object"?
c. Where and what kind of image is formed?
2. Compare the function of the eyepiece in both instruments. In each case:
a. Do you want a large focal length or small? why?
b. Where is your "object"?
c. Where and what kind of image is formed?
1) In each case the objective forms a real image of the object.
a)The objective lens of a telescope has a long focal length while that of a microscope has a short focal length. The telescope focuses distant objects, the microscope focuses close objects.
b) for a telescope the object is effectvely at infinity: for a microscope it is very close.
c) In both cases a real image is formed behind the objective.
2) In both cases the eyepiece magnifies the image formed by the objective lens.
a) You want a relatively short focal length in order to focus the real image produced by the objective.
b) The object is within the instrument, behind the objective.
c) It depends on the adjustment of both instruments whether they are set for near point or far point. Usually they are set so that the eye piece forms a virtual image.
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 Large Hurricane Air Blower Sensor Lens Eyepiece Cleaner  US $9.41
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 4MM DELUXE 965 inch high power telescope eyepiece wide angle big lenses US $7.45
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 965inch 3X telescope eyepiece barlow lens US $3.95
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 Visionking 15 45x52 spotting scope 45° eyepiece Extendable lens sunshade US $94.14
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Naval telescope Photo Mugs
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DescriptionThis achromatic telescope has a tapering mahogany barrel with brass fittings, including a single draw tube, an objective lens cap and a pivoted eyepiece cover. It is typical of the sort of telescope used on board ship in the 19th century.. Features
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Night telescope Photo Mugs
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DescriptionThis night telescope has a wooden barrel with a leather covering and silvered brass fittings. It has an objective lens cap and a pivoted eyepiece cover. It has a large objective lens (67 mm in diameter) to collect as much light as possible when viewing at night. The telescope gives an inverted image - additional lenses to correct the image would cut down the amount of light reaching the eyepiece.. Features
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Night telescope Photo Mugs
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DescriptionThis telescope has a leather-covered barrel and a single brass draw tube. The brass fittings include an objective lens cap and a sliding eyepiece cover. It has a large non-achromatic objective lens to allow as much light as possible to enter the telescope. The telescope doesnt have extra lenses to correct the inversion of the image created by the objective lens, since the more lenses a telescope has, the greater the loss of light. The production Features
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Howard Leight Uvex Genesis Glasses Black Frame Espresso Lens Nose Fingers Ventilation Channel
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DescriptionVentilation channel. Adjustable temple length. Ratchet lens inclination. Features
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5.11 Tactical Shear Eyewear Gloss Black Frames Plain Smoke Lenses
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Features
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5.11 Tactical Climb Polarized Eyewear Smoke Distortion Free 8 Base Lense Gloss Black Nylon Frame
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DescriptionExceeds ANSI Z87.1-2003 standards. Soft nose piece. Features
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3PC EYE LOUPE 3X 5X 10X:MG-20900
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DescriptionMG-20900 : Three Piece Loupe Set : : (Eyewear Magnifiers)Economy And Variety In One Set! 3x, 5x, And 10x Glass Lenses - You'll Use Them For Work, Hobbies, And More. Keep All Three Or Share The Set With Others. Features
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Pentax 65809 PCF II 12x50 Waterproof Binocular
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DescriptionWith large objective lenses for superior light-gathering and the power of 12X magnification, the PENTAX 12x50 PCF WP II binocular is the perfect companion for observations made at dusk or dawn. Add to that a 219 foot field of view and waterproof construction, and this high-performance model provides superior viewing in even the lowest light conditions and harshest climates. Features
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Hard LCD Screen Protector for NIKON D3S D3X Digital SLR Cameras + Premium Goja Microfiber Lens Cleaning Cloth
Sale Price: $8.99 |
Description- New Professional Hard LCD Screen Protector for Nikon D3, D3x- Protect your delicate LCD screen from scratches and dust.- Reduces glare for better viewing in sunlight.- Can be removed and washed, leaving no sticky residue on your LCD screen. - Made of high quality, scratch proof plastic polymer (PET).- The LCD screen is one of the most expensive parts of your camera to replace and will not be covered under warranty if scratched or marred. Prevent scratches and other accidental damage with a high quality screen protector.- New Premium Microfiber Cleaning Cloth- Ultra gentle! Extremely fine microfiber leaves zero scratches, streaks or marks. Safe for all lenses.- Features special saw tooth pattern edges. Other sellers' cloths have unfinished edges that will fray easily, the weave becoming undone and threads pulling out easily. Our microfibers are made with premium materials and designed to the highest standard of quality.- Ideal for cleaning oil and dirt off eyeglasses, iPhone/iPad and other touch screens, binocular lenses, digital SLR and other camera lenses, GPS devices, and other delicate optics.- Clean without the need of soaps or detergents. Wipe down kids' toys, cribs, stainless steal counters and other areas you want to keep chemical free.- Great value for your money. Reusable and long lasting. No more paper towel and tissue waste.- Extremely handy! Keep one in your office, home office, laptop bag, camera bag and car.- Size: 6 x 7 inches (15cm x 18cm)- Each microfiber is individually and neatly packed in it's own polyurethane plastic bag for long term safekeeping. Features
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Dino-Eye AM423C C-Mount Eyepiece Adapter Digital Camera USB 2.0
Sale Price: $329.00 |
DescriptionThis eyepiece digital camera (USB 2.0) is professionally designed for traditional microscopes. It works perfectly with all kinds of optical microscopes, such as Biological microscope, Metallurgical microscope and Stereo microscope, etc. The images of the observed specimen or samples can be accurately displayed on the computer screen. The powerful, advanced software included with the camera ensures simple and convenient operation allowing easy capture of images from the microscope! Included with each Dino-Lite digital microscope is a copy of the "DinoCapture" software, enabling you to "capture" either a photograph, video or time-lapsed video with a simple click! Features
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