|
microscopes for schools
|
|
|
We
carry the complete line of Instruments from National Optical. This page contains the
most popular models used in elementary and secondary schools. We also maintain a
site devoted entirely to all available models. If you wish to see the entire line of
instruments and some excellent resources, please go to Microscope World.
For further information or to order, call 1-800-942-0528. We accept Visa,
American Express, MasterCard, Discover Card and can do ACH transactions from your checking account. |
|
Model
109-L
Our recommendation for high power observations at the elementary level
Wide field 10X eyepiece with pointer; Parfocal, parcentered, achromatic objective
lenses: 4X, 10X, and 40XR (retractable)
Coarse and fine rack and pinion
focusing. Stage is stationary, eyepiece tube moves
Five hole disc diaphragm, 15 watt (110
volt) illuminator
Student proof, weighs 5 lbs., includes
5 year warranty
|
|
Model
185
For low power observations at both elem. and sec. levels
Single 10X wide field eyepiece lens
and 2X objective for a total power of 20X showing upright, unreversed images
Head rotates 360 degrees
Has no illuminator but because of its
low power, it works well in ambient light. Ideal for use outdoors.
Student proof, weighs 3 lbs., includes
5 year warranty
|
|
Model
138
Our choice for compound instruments used at the secondary level
10X wide field eyepiece on 45 degree
inclined, revolving head. 45 mm DIN achromatic parcentered and parfocal objectives:
4X, 10X, and 40XR (retractable).
Coarse and fine focusing. Stage
moves, head remains stationary. Accepts optional mechanical stage. Contains a 5 hole
disc diaphragm and 0.65 N.A. condenser lens mounted in stage.
Model 138 has 5 watt fluorescent
illumination and delivers more light than the model 131 which is similar except that it
has a 20 watt tungsten bulb (price $195.)
Student proof. Weighs 7
lbs. Includes 5 year warranty.
|
|
Model
446
For low power observations at the secondary level
Stereo microscopes, dual 10X eyepiece
lenses with interpupillary and diopter adjustments. Dual power! 10X and 30X (
instruments similar to this are available with other magnifications). Shows
upright, unreversed, 3D images.
Head rotates within
its focusing block and instrument rotates
on post 360 degrees.
Has both top and bottom illumination,
each independently selectable.
Student proof microscopes. Weigh
4 lbs. Includes 5 year warranty
|