Compound Microscope
 |
 40X 2000X MEDICAL LABORATORY VET COMPOUND MICROSCOPE $215.00 Time Remaining: 5d 19h 1m Buy It Now for only: $215.00 |
 800X LED Home School Compound Microscope w Coarse Fine Focus + Digital Camera $139.99 Time Remaining: 1h 35m Buy It Now for only: $153.99 |
 40X 2000X RESEARCH LAB COMPOUND TRINOCULAR MICROSCOPE $265.00 Time Remaining: 2h 48m Buy It Now for only: $292.00 |
 40x 2000x Lab Research Binocular Compound Microscope $216.66 Time Remaining: 21d 15h 29m Buy It Now for only: $216.66 |
 40X 1600X COMPOUND MICROSCOPE + 13M USB CAMERA + SLIDE $239.00 Time Remaining: 2h 3m Buy It Now for only: $263.00 |
 40X 2000X Biological Compound Microscope with Mechanical Stage $100.00 (1 Bid) Time Remaining: 6h 11m |
 Professional Doctor Vet Clinic Lab Compound Microscope $199.98 Time Remaining: 7d 22h 4m Buy It Now for only: $199.98 |
 80MP Camera + 40X 2000X Trinocular Compound Microscope w Three Unique Features $495.00 Time Remaining: 3h 16m Buy It Now for only: $545.00 |
 40X 2000X MEDICAL LABORATORY VET COMPOUND MICROSCOPE $213.00 Time Remaining: 15h 17m Buy It Now for only: $235.00 |
 40 1600x HIGH POWER BINOCULAR BIOLOGICAL COMPOUND MICROSCOPE $179.98 Time Remaining: 9d 8h 54m Buy It Now for only: $179.98 |
 Wild Heerbrugg M11 compound microscope 1954 $357.24 (31 Bids) Time Remaining: 17h 2m |
 40X 2000X BIOLOGICAL COMPOUND MICROSCOPE w MECH STAGE $195.00 Time Remaining: 23d 2h 40m Buy It Now for only: $195.00 |
 40x 2000x Binocular Vet Lab Optical Compound Microscope + USB20 Digital Camera $269.98 Time Remaining: 14h 24m Buy It Now for only: $296.98 |
 40X 2000X BINOCULAR VET COMPOUND MICROSCOPE +USB CAMERA $269.98 Time Remaining: 18h 19m Buy It Now for only: $296.98 |
 40X 2000X COMPOUND BIOLOGICAL MICROSCOPE + MECH STAGE $145.00 Time Remaining: 24d 20h 7m Buy It Now for only: $145.00 |
 40x 1000x Binocular Biological Compound Microscope New $174.50 Time Remaining: 13h 15m Buy It Now for only: $191.95 |
 Student Compound Microscope with 50 blank slides 100 pcs cover $63.00 Time Remaining: 7h 23m Buy It Now for only: $69.99 |
 40X 2000X BINOCULAR VET COMPOUND MICROSCOPE +USB CAMERA $269.98 Time Remaining: 9d 1h 17m Buy It Now for only: $269.98 |
 ADVANCED BINOCULAR COMPOUND MICROSCOPE 40X 1600X $225.00 Time Remaining: 14h Buy It Now for only: $248.00 |
 COMPOUND BIOLOGICAL HIGH POWER MICROSCOPE 40X 2000X $149.00 Time Remaining: 22d 8h 6m Buy It Now for only: $149.00 |
 40X 1600X Doctor Vet Trinocular Compound Microscope $254.52 Time Remaining: 15h 24m Buy It Now for only: $279.98 |
 40x 800x BIOLOGICAL DUAL VIEW COMPOUND MICROSCOPE $149.80 Time Remaining: 15h 12m Buy It Now for only: $164.78 |
 40X 1600X VET LAB COMPOUND MICROSCOPE + MECH STAGE $145.00 Time Remaining: 10d 5h 24m Buy It Now for only: $145.00 |
 Phase Contrast Binocular Compound Microscope 40x 2000x with 30MP USB Camera $929.90 Time Remaining: 14h 17m Buy It Now for only: $1,033.00 |
 NEW 40 1000x Lab Vet Professional Compound Microscope w $239.77 Time Remaining: 1d 1h 59m Buy It Now for only: $263.75 |
 40X 2000X LAB TRINOCULAR BIOLOGICAL COMPOUND MICROSCOPE $265.00 Time Remaining: 4d 20h Buy It Now for only: $265.00 |
 Nikon CL Binocular Compound Microscope w Eyepieces Light Bulb 4 Objective $0.99 (1 Bid) Time Remaining: 4d 17h 15m |
 Professional Biological Compound Microscope 40X 1600X $225.00 Time Remaining: 14h 23m Buy It Now for only: $248.00 |
 40X 2000X Siedentopf Binocular Compound Microscope with 3W LED Illumination $239.00 Time Remaining: 1d 17h 49m Buy It Now for only: $239.00 |
 40x 1600x Biological Compound Binocular Microscope New Design Backward Nosepiece $312.41 Time Remaining: 20h 7m Buy It Now for only: $343.84 |
 Compound Microscope Kohler Illumination Plan Objectives $399.99 Time Remaining: 26d 19h 57m Buy It Now for only: $399.99 |
 40X 640X CORDLESS LED BIOLOGICAL COMPOUND MICROSCOPE + 3 RECHARGEABLE BATTERIES $139.98 Time Remaining: 18h 36m Buy It Now for only: $153.98 |
 NEW 40x 600x Metallurgical Compound Microscope w LIGHT $1,899.77 Time Remaining: 15h 29m Buy It Now for only: $2,089.75 |
 40X 2000X COMPOUND VET MICROSCOPE + USB CAMERA $219.00 Time Remaining: 28d 22h 53m Buy It Now for only: $219.00 |
 40X 2000X LED Compound Microscope w 10MP Camera Windows 2000 XP Vista 7 Mac OS $599.00 Time Remaining: 16h 4m Buy It Now for only: $659.00 |
 Veterinary Doctor Clinic Biological Compound Microscope $199.98 Time Remaining: 15h Buy It Now for only: $219.98 |
 40X 1000X Student Compound Microscope with Coarse Fine Focus + Digital Camera $139.99 Time Remaining: 18d 2h 57m Buy It Now for only: $139.99 |
 New Advanced 1000x PLAN Trinocular Compound Microscope $799.99 Time Remaining: 14h 19m Buy It Now for only: $879.99 |
 Kids Students 40X 1000X Monocular Compound Microscope $98.88 Time Remaining: 26d 20h 32m Buy It Now for only: $98.88 |
 DUAL VIEW COMPOUND MICROSCOPE W DIGITAL IMAGE CAMERA $229.00 Time Remaining: 12h 51m |
 40X 2500X Professional Infinity Binocular Compound Microscope $575.00 Time Remaining: 20h 25m Buy It Now for only: $1,150.00 |
 40X 400X COMPOUND MONOCULAR POLARIZING GEOLOGICAL MICROSCOPE $229.98 Time Remaining: 9d 9h Buy It Now for only: $229.98 |
 40X 1000X Binocular Compound Microscope + Book Case Slides USB Imager More $359.00 Time Remaining: 16h 4m Buy It Now for only: $395.00 |
 40X 2500X Professional Infinity Trinocular Compound Microscope $599.98 Time Remaining: 16h 2m Buy It Now for only: $659.98 |
 40x 1000x Compound Binocular Microscope + 50 Slides and $179.98 Time Remaining: 9d 23h 29m Buy It Now for only: $179.98 |
 Compound Binocular 40x 1600x Microscope LED Run on AA Battery $279.90 Time Remaining: 21h 7m Buy It Now for only: $311.00 |
 American Optical One Fifty Compound Microscope Nice condition Works Great Oil $150.00 Time Remaining: 9d 17h 5m Buy It Now for only: $150.00 |
 40X 2000X Trinocular Compound Microscope + 10MP Camera $599.98 Time Remaining: 15h 15m Buy It Now for only: $659.98 |
 Premium Grade Trinocular 1600x Compound Lab Research Microscope + 30MP Camera $619.90 Time Remaining: 18h 17m Buy It Now for only: $689.00 |
 Phase Contrast BF Compound Microscope w 20MP Camera $799.98 Time Remaining: 20d 12h 10m Buy It Now for only: $799.98 |
 40X 2000X BINOCULAR BIOLOGICAL COMPOUND MICROSCOPE WITH COARSE FINE FOCUSING $189.75 Time Remaining: 1d 1h 39m Buy It Now for only: $208.75 |
 40X 2000X Trinocular Compound Microscope + 10 MP Camera $675.00 Time Remaining: 15h 55m Buy It Now for only: $743.00 |
 40x 2000x Binocular Compound Microscope with USB Camera $299.99 Time Remaining: 20d 12h 12m Buy It Now for only: $299.99 |
 Nikon Compound Stereo Biological Microscope 4 10 40 100 Objectives 10X Eyepieces $299.95 Time Remaining: 3d 11m |
 40X 1600X COMPOUND MICROSCOPE + USB PC CAMERA + SLIDES $235.00 Time Remaining: 16h 53m Buy It Now for only: $259.00 |
 Bausch and Lomb Flat Field Compound Microscope Great Condition 4 Lens $180.00 Time Remaining: 9d 16h 36m Buy It Now for only: $180.00 |
 40X 1000X STUDENT COMPOUND MICROSCOPE + MECH STAGE $129.75 Time Remaining: 13h 59m Buy It Now for only: $142.75 |
 Student Compound Microscope $43.99 Time Remaining: 20d 20h 34m Buy It Now for only: $43.99 |
 40X 2000X BIOLOGICAL COMPOUND MICROSCOPE + 3MP CAMERA $385.00 Time Remaining: 16h 35m Buy It Now for only: $424.00 |
 Compound Enhanced Darkfield Condenser 9MP Digital PLAN Microscope Reversed 1600X $1,279.90 Time Remaining: 20h 17m Buy It Now for only: $1,421.00 |
 40X 2000X TRINOCULAR COMPOUND DARKFIELD MICROSCOPE $369.00 Time Remaining: 7d 21h 24m Buy It Now for only: $369.00 |
 Student Monocular Compound Microscope 40x 800x with Video Camera Tube $145.90 Time Remaining: 15h 7m Buy It Now for only: $162.00 |
 Student Mech Stage Compound Microscope 40x 800x +Camera $169.95 Time Remaining: 14h 32m Buy It Now for only: $186.95 |
 40X 1000X Student Compound Microscope Home School Science $179.96 Time Remaining: 17d 19h 42m Buy It Now for only: $179.96 |
 Professional Hi Grade Lens Biological Compound Trinocular Microscope Sturdy Base $549.90 Time Remaining: 19h 17m Buy It Now for only: $611.00 |
 40x 1000x BIOLOGICAL BINOCULAR COMPOUND MICROSCOPE $175.00 Time Remaining: 11d 1h 57m Buy It Now for only: $175.00 |
 New Professional Lab Vet Compound Biological Microscope $649.99 Time Remaining: 1d 14h 18m Buy It Now for only: $714.99 |
 40x 1000x Biological Compound Binocular Microscope + Complete Book of Microscope $199.75 Time Remaining: 1d 2h 7m Buy It Now for only: $219.75 |
 40 400x MONOCULAR BIOLOGICAL COMPOUND LIGHT MICROSCOPE $49.98 Time Remaining: 9d 8h 56m Buy It Now for only: $49.98 |
 New Advanced 1600x PLAN Compound Lab Doctor Microscope $834.73 Time Remaining: 1d 13h 8m Buy It Now for only: $918.21 |
 40X 1500X Professional Infinity Trinocular Compound Microscope $595.00 Time Remaining: 1d 22m Buy It Now for only: $655.00 |
 New 40x 1000x Biological Binocular Compound Microscope $184.78 Time Remaining: 10d 5h 20m Buy It Now for only: $184.78 |
 TURRET PHASE CONTRAST BINOCULAR COMPOUND MICROSCOPE $979.00 Time Remaining: 1d 5m Buy It Now for only: $1,078.00 |
 Omano OM118 B4 1000X Binocular Compound Microscope $169.99 Time Remaining: 6d 14h 38m Buy It Now for only: $169.99 |
 40X 2000X BIOLOGICAL COMPOUND MICROSCOPE + 8MP CAMERA $499.50 Time Remaining: 20h 51m Buy It Now for only: $549.50 |
 40x 640x Compound Student Microscope + Slide Set w Box $88.75 Time Remaining: 15h 13m Buy It Now for only: $97.63 |
 NEW TEACHING TRAINING COMPOUND MICROSCOPE 40X 1600X $197.00 Time Remaining: 23d 5h 47m Buy It Now for only: $197.00 |
 40X 2500X Infinity Kohler Extreme Widefield Compound Microscope + 10MP Camera $950.00 Time Remaining: 1d 5m Buy It Now for only: $1,045.00 |
 40X 1000X Student Biological Compound Microscope + Book Prepared Blank Slides $125.00 Time Remaining: 14h 27m Buy It Now for only: $138.00 |
 40X 400X MONOCULAR COMPOUND HIGH POWER MICROSCOPE $59.98 Time Remaining: 9d 8h 57m Buy It Now for only: $59.98 |
 40x 2000x Compound Microscope Built in 3MP Camera with Aluminum Carrying Case $489.90 Time Remaining: 20h 17m Buy It Now for only: $544.00 |
 40X 2000X DOCTOR VET LAB TRINOCULAR COMPOUND MICROSCOPE $299.98 Time Remaining: 2d 1h 22m Buy It Now for only: $329.98 |
 40x 2000x Professional Compound Microscope + 9MP Camera $499.98 Time Remaining: 6d 22h 38m Buy It Now for only: $499.98 |
 PROFESSIONAL BINOCULAR COMPOUND DARKFIELD MICROSCOPE $349.00 Time Remaining: 1d 14h 14m Buy It Now for only: $384.00 |
 40X 2000X Siedentopf Trinocular Compound Microscope with 3W LED Illumination $245.00 Time Remaining: 1d 17h 8m Buy It Now for only: $245.00 |
 40x 2000x Compound Plan Darkfield Microscope with 30MP Built in USB Camera $729.90 Time Remaining: 21h 17m Buy It Now for only: $811.00 |
 1000X STUDENT MONOCULAR BIOLOGICAL COMPOUND MICROSCOPE $99.95 Time Remaining: 14h 18m Buy It Now for only: $109.98 |
 New 40X 2000X Trinocular Biological Compound LED Microscope + 3MP Digital Camera $375.00 Time Remaining: 16d 19h 30m Buy It Now for only: $375.00 |
 40X 1600X LAB CLINIC VET TRINOCULAR COMPOUND MICROSCOPE $265.00 Time Remaining: 2d 2h 45m Buy It Now for only: $292.00 |
 40X 1600X VET LAB COMPOUND MICROSCOPE + 3D MECH STAGE $185.00 Time Remaining: 1d 21h 4m Buy It Now for only: $204.00 |
 National Optical Microscope Model 106 L Compound Microscope $39.99 Time Remaining: 8d 19h 36m Buy It Now for only: $39.99 |
 40X 2500X Infinity Kohler Trinocular Compound Microscope + 10MP Camera Win Mac $950.00 Time Remaining: 23h 59m Buy It Now for only: $1,045.00 |
 PHASE CONTRAST BINOCULAR BIOLOGICAL COMPOUND MICROSCOPE $539.00 Time Remaining: 19d 2h 33m Buy It Now for only: $539.00 |
 1600X Compound Siedentopf PLAN Microscope+Oil Darkfield Condenser+100X Plan Obj $1,019.90 Time Remaining: 1d 20h 17m Buy It Now for only: $1,133.00 |
 Portable Inverted Compound Microscope 40x 400x Working on 2 AA Batteries $245.51 Time Remaining: 1d 17h 17m Buy It Now for only: $273.11 |
 USB2 Camera + 40X 1000X Student Glass Lens Metal Framework Compound Microscope $129.00 Time Remaining: 23d 22h 24m Buy It Now for only: $129.00 |
 40X 2000X BINOCULAR BIOLOGICAL COMPOUND MICROSCOPE WITH MECH STAGE $195.00 Time Remaining: 1d 21h 4m Buy It Now for only: $215.00 |
 40X 2000X Siedentopf Trinocular Compound 3W LED Microscope + 10MP Digital Camera $489.00 Time Remaining: 1d 2h 39m Buy It Now for only: $538.00 |
 PROFESSIONAL RESEARCH BIOLOGICAL COMPOUND MICROSCOPE $449.00 Time Remaining: 24d 1h 25m Buy It Now for only: $449.00 |
 SEMI PLAN JIS 37mm par focal Compound Microscope Objectives 4x 10x 40x 100x $79.99 Time Remaining: 1d 12h 21m |
Compound Microscope
Immersion Oil Use in Compound Microscopes
As magnification increases on a compound microscope the correction in refractive index is a requirement for finer resolution and brightness. As the light cone passes through the different layers of glass, sample mounting media and air light tends to bend at different angles. In most cases the sequence of the light leaving the substage condenser is glass (1.515nD), air (1.00nD), glass slide (1.515nD), sample, mounting media, cover slip (1.515nD), into the objective lens which is approximately 1.515nD.
Immersion oil has a refractive index of 1.515nD and is applied to the top of the cover slip and then the tip of the oil immersion objective is then immersed into the drop of oil. This completes the "optical connection" so to speak.
The resolution obtained is directly related to the angular aperture, the larger the A.A. having a wider cone with more scattered (oblique) rays. Unless there is a homogenous light path, the most oblique rays are lost to internal reflection inside the glass slide or cover slip. The use of immersion oil permits full use of the resolving power of the objective lens. Immersion oil objectives increase the resolution by approximately fifty percent over dry objectives of equivalent focal length.
The resolving power of an optical system is figured by averaging the numerical aperture (N.A.) value of the objective and the working N.A. of the condenser.
The acid value of immersion oil should be very low. If not then the higher acid content can lead to eventual deterioration of the metal parts of the objective lens or worse yet the dissolving of the cements used to manufacture the lens. This is turn leads to a leakage problem as immersion oil is wicked up into the interior of the lens.
Viscosity of the immersion oil is up to the user. Lower viscosities tend to run and spread all over the microscopes requiring more clean up. Higher viscosities are more practical and not as messy. Very high viscosities are used for instruments that are mounted on slight angles.
When applying immersion oil use only the amount required for the individual slide. To much oil does not help with the optical performance as much as it requires more clean up. Not enough oil will not allow a good optical contact with the objective.
Which oil is the best? Our choice is Cargille Immersion Oil. It is manufactured with the best materials. Immersion oil must meet the design requirements of older microscopes and become the design criteria for new instruments.
About the Author
National Microscope Exchange has been in business since 1991, selling and servicing abbe refractometers, refractometers,inverted microscope and microscopes. The service staff has 30 years of experience with microscopes, and is the authorized United States service facility for Atago brand refractometers.
What is the difference between a compound microscope and a regular microscope?
i know it has something to do with multiple lenses and stuff
A compound microscope is a regular microscope.
A simple microscope would only use one lens, but nowadays this is only of historical interest.
You could assemble your own microscope with two lenses, but the image quality would be very poor.
Normal compound microscopes use maybe 3 to 6 lenses carefully made and calculated to do a terrific job.
Compound Microscope