Showing posts with label Optical. Show all posts
Showing posts with label Optical. Show all posts

Saturday, December 8, 2012

Types of compound optical Microscopes

Compound optic microscopes are also known as compound microscopes, light microscopes or optic microscopes and come in some varieties. These comprise digital, inverted, stereo, monocular and binocular.

All work on the same ideas and deliver an enlarged image to the viewer. They have some differences though, which will be detailed here.

Microscope

Monocular:

These are probably the ones you think of when microscopes come to mind. Using a singular light as a sample illuminator and compound lenses for magnification, these have a singular eyepiece. This is a bit uncomfortable, as you need to close one eye to get a clear image of what you are looking at on the slide. The eyepiece has a power of about 10X and the objectives or lenses on the nosepiece range from 2X to 50X depending on your singular microscope. The big one here is the singular eyepiece.

Binocular:

Binocular microscopes are becoming more common. You can tell a binocular style microscope by the dual eyepiece. Simply put, you use both eyes to view the sample image. This makes them more comfortable to use and thereby more popular. Dual eyepiece scopes are used widely in high school and college classrooms. Binocular microscopes have all the same characteristics as the monocular ones above.

Stereo:

Stereo microscopes bring a whole new size to the image, literally. Whereas the typical light microscope produces a two-dimensional image, the stereo microscope uses two light sources working independently to furnish a three-dimensional image to the viewer. The sample on the slide will have height, depth and width. Using all of the same features and characteristics of the other optic microscopes, stereomicroscopes stand out among their counterparts.

Digital:

This is where things go differently in the realms of microscopy. Appropriate optic microscopes use light to illuminate and lenses to magnify something that you could not see with the unaided eye.

Digital microscopes are a breed apart. This type of microscope inverts the light source, placing it above the sample. Appropriate optic microscopes place the light below the sample. You also get the 3D image like in stereo scopes. The incompatibility is that the image is digitized and transmitted to a monitor or screen for viewing. Fantasize watching cells divide on a 19" monitor. The user can take still photos or thoughprovoking video of the sample in real time. I think you can see the advantages here.

Inverted:

Inverted microscopes are used to study samples that are gravity sensitive, like gases suspended in a liquid. The inversion refers to the light source, which is typically below the sample slide. With the inverted microscope, the light source is above the sample slide. This paved the way for new innovations in digital imaging that came along.

All these dissimilar types will work for you. It's just a matter of what you want to achieve or study. I can tell you this, though; using any microscope will open your eyes to a whole new perspective of where we came from and what we are made of.

Types of compound optical Microscopes

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Sunday, August 5, 2012

Check Out Aven 26700-300 ZipScope USB Digital Microscope with 2 Mega-Pixel 10x-50x Optical, 200x Digital Magnification for $70.70


Aven 26700-300 ZipScope USB Digital Microscope with 2 Mega-Pixel 10x-50x Optical, 200x Digital Magnification Overview

The Aven 26700-300 zipScope is a tabletop, 2.0 megapixel digital microscope that has a USB interface, eight white LED lights with two intensity settings, a snapshot button for image capture, optical magnification of 10X to 50X, and digital magnification of 200X. This digital microscope enhances the resolution of an object or image, and connects to a computer for image display. It is commonly used for quality control (QC) inspection, medical and scientific research, geology, mineralogy, chemistry, and for printing and textile inspection.

This microscope has an adjustable magnification of 10X to 50X, and comes in an all-in-one, compact lens. A 1/2” complementary metal-oxide semiconductor (CMOS) color image sensor manages noise reduction and image quality. The microscope has a shutter speed of 1 second to 1/1000 of a second. The frame rate is 30 frames per second (FPS) at 2.0 megapixels. The zipScope uses eight white LED lights with two intensity settings to control illumination. The microscope has automatic white balance to control brightness, and automatic exposure. A snapshot trigger captures images, and the microscope outputs images or video to a PC. A large, manual focus wheel adjusts focus in a 10 to 500 mm range. The microscope body has a rubberized, anti-slip coating for durability. Included software has image (JPEG and BMP) and video (AVI) capture functions. The microscope comes with an adjustable metal stand that includes height and angle adjustment. The zipScope has a one-year warranty.

Specifications

Optical magnification10X to 50X
Digital magnification200X
Image sensor0.50” color CMOS
Effective pixels 2.0 mega-pixels (M)
Illumination8 white LED lights with two intensity settings
Shutter speed1 second to 0.001 (1/1000) of a second
Frame rate30fps, 15 fps at 1.3 M
White balanceAutomatic
Snap shot modeHardware and software controllable
Focus rangeManual, 10mm to 500mm
Frame rate30fps, 15 fps at 1.3 M
Operating systemMicrosoft Windows XP, Windows XP SP2, Windows Vista, and Windows 7
Formats producedImages (JPEG or BMP formats) or video (AVI format)
Power source5 VDC through 2.0 USB port
Power consumption110-volt
Overall dimensions19.7 x 6.7 x 8.6 cm / 7.75 x 2.625 x 3.375 inches (H x W x D)
Weight0.294835 kilograms (0.65 lb.)
WarrantyOne year

*(H is height, the vertical distance from the lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.)

Microscopes are instruments used to enhance the resolution of an object or image. Types include compound, stereo, or digital. Compound microscopes use a compound optical system with an objective lens and an eyepiece. Stereo microscopes show object depth in a three-dimensional image. Digital microscopes are used to display an image on a monitor, rather than looking through a lens. Microscopes can have monocular (one), binocular (two), or trinocular (three) eyepieces, with varying magnification abilities. Magnification ability refers to the size of an image. Resolution, also known as resolvant power, refers to the clarity of the image. The interaction between field of view (FOV), numerical aperture (NA), and working distance (WD) determines resolution. Microscopes can control magnification through a fixed focus, or through a range of adjustments. They can also utilize LED, fluorescent, and mirror light sources to help control viewing capabilities. Microscopes are widely used in education, lab research, biology, metallurgy, engineering, chemistry, manufacturing, and in the medical, forensic science, and veterinary industries.

Aven manufactures optical inspection tools, precision tools, and bench accessories for industrial, scientific, and research applications. The company was founded in 1983 and is headquartered in Ann Arbor, MI.

What’s in the Box?

  • 26700-300 zipScope microscope
  • Adjustable metal stand
  • Software
  • Instructions

Aven 26700-300 ZipScope USB Digital Microscope with 2 Mega-Pixel 10x-50x Optical, 200x Digital Magnification Review



Aven 26700-300 ZipScope USB Digital Microscope with 2 Mega-Pixel 10x-50x Optical, 200x Digital Magnification Feature

  • 2.0 megapixel digital tabletop microscope with 1/2" color complementary metal-oxide semiconductor (CMOS) image sensor and USB 2.0 computer output to display images or video, commonly used for quality control (QC) inspection, medical and scientific research, geology, mineralogy, chemistry, and for printing and textile inspection.
  • Optical magnification of 10X to 50X, and digital magnification of 200X
  • 8 built-in, white LED lights with two-step intensity control for illumination, automatic white balance, and the ability to be turned on and off
  • Included software produces images (JPEG or BMP formats) or video (AVI format)
  • One year warranty

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*** Product Information and Prices Stored: Aug 05, 2012 04:17:02

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