Fluorescent Microscope
Fluorescent Microscope
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Fluorescent Proteins, Volume 85, Second Edition (Methods in Cell Biology)
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DescriptionThis new edition of Fluorescent Proteins presents current applications of autofluorescent proteins in cell and molecular biology authored by researchers from many of the key laboratories in the field. Starting from a current review of the broad palette of fluorescent proteins available, several chapters focus on key autofluorescent protein variants, including spectral variants, photodynamic variants as well as chimeric FP approaches... |
Understanding Phase Contrast Microscopes
In 1953, the world recognized the scientific genius that is the phase contrast microscope. Forget high useful - it wasn't just useful, it was crucial for actual live observations of intra-cellular processes like cell division.
Medical and biological sciences research are now focused on the real time, real life observation of living organisms to analyze its components and understand life better than we already do. Specifically designed for live specimens, this type of microscope enables observation of virtually invisible occurrences within a cell.
Obviously more advanced than the typical light microscope, this instrument uses the various refractive abilities of different objects to heighten the contrast between colorless and transparent structures. Under this powerful type of microscopy, specimens remain alive as they do not need to be stained - colored or dyed - to distinguish characteristics.
Light Waves and Visible Contrasts
Light waves peak and valley in regular intervals. The moment they line up, they're said to be in phase; otherwise they're said to be out of phase. This basic understanding of light waves is the key to how a phase contrast microscope works - it influences the optical path of light through transparent or colorless objects under observation.
Light waves passing through transparent portions of the specimen is slower then the uninfluenced light. To cause a difference in brightness, a transparent phase-plate mounted on the microscope increases the phase to half a wavelength, making the transparent object outshine its surroundings. This unique feature of phase contrast microscope makes it an indispensable tool in medical and biological observations of living cells.
How It Works
A phase contrast microscope makes use of two light sources - one under your specimen and another that is reflected off your specimen. Now, light passes through any transparent object but gets reflected off the surface of a solid, colorless object. When these light waves condense on a lens placed just above your specimen, it is easy to see if the light waves are in or out of their phase. This phase condenser lens on this type of microscope is analogous to the fluorescent filters in fluorescence microscopes; both make light differentiation possible.
Advances in Biomedical Microscopy Technologies
The latest in biomedical microscopy is the introduction of infinity-corrected phase contrast microscopes. Over the last decades, the largest manufacturers of research and/or professional grade microscopes have introduced this new type of optical system into various microscopy modules. This technology places another lens between the objective and the eyepiece and sets the object image to infinity. This correction makes it possible to introduce auxiliary components in the microscope.
This integrated capability makes imaging a an exciting part of the research. Now, you can capture, store, display - virtually do anything - with images of your specimen. With the flexibility of integrated digital technology, you can capture Full color photographs or videos of your specimen and display, store and retrieve them from your computer. These capabilities produce virtually the same images on eyepieces and photo ports, allow you to hook up various types of cameras on to the microscope, which would definitely make training and demonstration more real life.
About the Author
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Fluorescent Confocal Microscopy
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 8W STEREO MICROSCOPE FLUORESCENT RING LIGHT ADAPTER  US $35.19
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 NEW 12W FLUORESCENT RING LIGHT MICROSCOPE ADAPTER US $34.98
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 FLUORESCENT RING LIGHT 4 STEREO MICROSCOPE SPARE BULB US $26.95
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 MICROSCOPE Accessories Zeiss Sideways Fluorescent Insert US $180.00
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 Leitz Mercury Fluorescent Microscope 50 watt lamphouse US $99.95
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 8w Fluorescent Ring Light 4 Stereo Microscope w Adapter US $24.18
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 New NikonTE2000 Microscope Fluorescent Zoom Light T FLZ US $499.00
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 Trinocular Microscope 40x 1600x w EPI Fluorescent Kit US $1,957.51
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 Epi Fluorescent Medical Microscope w Infinity Optics US $2,204.50
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 NEW FLUORESCENT RING LIGHT FOR MICROSCOPE WITH ADATER US $29.99
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 New FLUORESCENT RING LIGHT FOR MICROSCOPE US $29.99
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 8W Ring Bulb For Microscope Fluorescent Ring Light US $14.99
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Purkinje nerve cells in the cerebellum Photo Mugs
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DescriptionPurkinje cells in the cerebellum. Fluorescent light micrograph of Purkinje cells (green) in the cerebellum of the brain. Purkinje nerve cells have a flask-like body from which numerous highly branched dendrites extend... |
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Purkinje nerve cells in the cerebellum Photo Mugs
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DescriptionPurkinje cells in the cerebellum. Fluorescent light micrograph of Purkinje cells (green) in the cerebellum of the brain. Purkinje nerve cells have a flask-like body from which numerous highly branched dendrites extend... |
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Cell in the anaphase stage of mitosis Photo Mugs
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DescriptionMitosis. Fluorescent light micrograph of a cell during the anaphase stage of mitosis (cell division). The cell has been tagged with fluorescent markers to reveal internal structures. Chromosomes are red, the mitotic spindles pulling them apart are green, and peroxisomes are blue... |
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Higuchi JC5017 - 20 Watt Halogen Bi-Pin Light Bulb, G4 Base, 12 Volt
Sale Price: $0.01 |
Description20 Watt - G4 Base - 12 Volt - Halogen Bulb - 2000 Hours - Overall Lenght 1.3 Inches - Overall Diameter .31 Inches - 350 Lumens - Clear Finish. |
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Luxo 17845LG WAVE+Plus Light Gray Magnifier with 45-inch Arm, Edge Mount, 3.5-Diopter Lens (lamps included)
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DescriptionLens size (6.75" X 4.5") determined by ergonomists to optimize viewing area without being intrusive to the work environment; An adjustable neck assembly for positioning the magnifier head at the proper viewing angle so the operator maintains correct posture; WAVE+ magnifier heads are molded from ABS plastic and have polycarbonate lamp (bulb) covers; Lighting: two 13-watt quad compact fluorescent tubes; Top-mounted accessory lenses, including a 10-diopter swing away lens; Dual switches for independent control of each light; with one light on, shadowing is possible; with both on, full illumination results; Precision-ground white crown optical quality glass lens makes it ideal for inspection --- WAVE+ magnifiers are the top choice of technicians, assembly operators and quality control inspectors because their wide-view, rectangular-shaped lenses, excellent lighting and time-tested arms are easiest to use... |
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Accu-Scope Microscope - 5 watt Fluorescent Lamp
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DescriptionBulb has 10,000 hour rated life. This is for one bulb only. |
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Luxo Magnifier IFM 5 Diopter 30" Arm Weighted Base Lt Gray
Sale Price: $185.35 |
DescriptionSmart, economical choice for tight budgets. Stamped steel shade. 22W fluorescent Light Source, 360°ree; shadow-free illumination. (China) 30" Arm Length Light Grey Weighted Base 5 Lens Diopter |
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Student Monocular Microscope Inclined w/Fluorescent Illum. (Catalog Category: Diagnostics / Microscope & Accessories)
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Description4X 10X 40X * This was designed to provide students with a high performance instrument at an affordable price * This includes many professional features while remaining easy to use and maintain for secondary schools technical institutes and hobbyists * |
