7-45X Zoom Stereo Microscope Head, Trinocular, Field of View 20mm Working Distance 100mm SZ05031131

In Stock
$685.96 $342.98
(You save $342.98)
SKU:
SZ05031131
Condition:
New
Warranty:
5/1 Years
Certificate:
ISO9001, ISO13485, ISO14001, RoHS
  • 7-45X Zoom Stereo Microscope Head, Trinocular, Field of View 20mm Working Distance 100mm SZ05031131
  • 7-45X Zoom Stereo Microscope Head, Trinocular, Field of View 20mm Working Distance 100mm SZ05031131
  • 7-45X Zoom Stereo Microscope Head, Trinocular, Field of View 20mm Working Distance 100mm SZ05031131
  • 7-45X Zoom Stereo Microscope Head, Trinocular, Field of View 20mm Working Distance 100mm SZ05031131
  • 7-45X Zoom Stereo Microscope Head, Trinocular, Field of View 20mm Working Distance 100mm SZ05031131
  • 7-45X Zoom Stereo Microscope Head, Trinocular, Field of View 20mm Working Distance 100mm SZ05031131
  • 7-45X Zoom Stereo Microscope Head, Trinocular, Field of View 20mm Working Distance 100mm SZ05031131
  • 7-45X Zoom Stereo Microscope Head, Trinocular, Field of View 20mm Working Distance 100mm SZ05031131
  • 7-45X Zoom Stereo Microscope Head, Trinocular, Field of View 20mm Working Distance 100mm SZ05031131
  • 7-45X Zoom Stereo Microscope Head, Trinocular, Field of View 20mm Working Distance 100mm SZ05031131
Quick Overview
Finite. Body Magnification: 7-45X. Zoom Range: 0.7-4.5X. Zoom Ratio: 1:6.5. Trinocular. Dia. 76mm. Eye Tube Angle: 45°. Eye Tube Inner Diameter: Dia. 30mm. 20/80 True-Trinocular. Standard Eyepiece. Eyepiece Optical Magnification: 10X. Eyepiece Size for Eye Tube: Dia. 30mm. Eyepiece Field of View: Dia. 20mm. Eye Guard Mount Size: Dia. 36mm. Objective Working Distance: 100mm. Objective Screw Thread: M48x0.75mm.


SZ05031131 Trinocular Zoom Body
Trinocular Zoom Body
Body Optical SystemFinite
Body Magnification7-45X
Zoom Range0.7-4.5X
Zoom Ratio1:6.5
Zoom Operating ModeWith Two Horizontal Knobs
Observation MethodTrinocular
Body Mounting Size for Stand Dia. 76mm
Body Mount Type for CouplerThread Screw
Body Mount Size for Coupler Dia. 38mm
Eye Tube Adjustment ModeSiedentopf
Eye Tube Angle45°
Erect/Inverted ImageErect image
Eye Tube Rotatable360° Degree Rotatable
Interpupillary Adjustment54-76mm
Eye Tube Inner Diameter Dia. 30mm
Eye Tube Diopter Adjustable±5°
Image Port Switch Mode20/80 True-Trinocular
Eyepiece TypeStandard Eyepiece
Eyepiece Optical Magnification10X
Plan EyepiecePlan Eyepiece
Eyepiece Size for Eye Tube Dia. 30mm
Eyepiece Field of View Dia. 20mm
Eyepoint TypeHigh Eyepoint Eyepiece
Eyepiece Size for Reticle Dia. 24mm
Eye Guard InstallationIndependent Eye Guard
Eye Guard Mount Size Dia. 36mm
Objective Working Distance100mm
Objective Screw ThreadM48x0.75mm
Surface TreatmentSpray Paint
MaterialMetal
ColorWhite
Net Weight1.72kg (3.79lbs)

 


Technical Info

Instructions
Trinocular Zoom BodyClose Λ
Trinocular zoom body is the main body of a stereo microscope that has continuous zooming functions. In addition to the two eyepieces for observation, there is a third optical path (image port), which is usually a set of optical paths borrowed from the microscope for connecting to the camera to facilitate the observation with the display or connecting to a computer. Usually, the third ocular of the body can be configured with different photo eyepieces, or other interfaces to connect to different webcam, cameras and so on.
This body usually needs to be placed on a microscope stand for use. Generally, a variety of eyepieces and objective lenses with different magnifications can be selected, and high-end stereo microscope usually has a wide range of accessories for selection.
FiniteClose Λ
Microscopes and components have two types of optical path design structures.
One type is finite optical structural design, in which light passing through the objective lens is directed at the intermediate image plane (located in the front focal plane of the eyepiece) and converges at that point. The finite structure is an integrated design, with a compact structure, and it is a kind of economical microscope.
Another type is infinite optical structural design, in which the light between the tube lens after passing the objective lens becomes "parallel light". Within this distance, various kinds of optical components necessary such as beam splitters or optical filters call be added, and at the same time, this kind of design has better imaging results. As the design is modular, it is also called modular microscope. The modular structure facilitates the addition of different imaging and lighting accessories in the middle of the system as required.
The main components of infinite and finite, especially objective lens, are usually not interchangeable for use, and even if they can be imaged, the image quality will also have some defects.

The separative two-objective lens structure of the dual-light path of stereo microscope (SZ/FS microscope) is also known as Greenough.
Parallel optical microscope uses a parallel structure (PZ microscope), which is different from the separative two-object lens structure, and because its objective lens is one and the same, it is therefore also known as the CMO common main objective.
Zoom RangeClose Λ
Zoom in zoom microscope means to obtain different magnifications by changing the focal length of the objective lens within a certain range through adjustment of some lens or lens set while not changing the position of the object plane (that is, the plane of the point of the observed object perpendicular to the optical axis) and the image plane (that is, the plane of the image imaging focus and perpendicular to the optical axis) of the microscope.
Zoom range refers to the range in which the magnification is from low to high. In the zoom range of the microscope, there is no need to adjust the microscope knob for focusing, and ensure that the image is always clear during the entire zoom process.
The larger the zoom range, the stronger the adaptability of the range for microscope observation, but the image effects at both ends of the low and high magnification should be taken into consideration, the larger the zoom range, the more difficult to design and manufacture, and the higher the cost will be.
Zoom RatioClose Λ
Zoom ratio is the ratio of the maximum magnification / the minimum magnification. Expressed as 1: (ratio of maximum magnification / minimum magnification). If the maximum magnification is 4.5X, the minimum magnification is 0.7X, then the zoom ratio = 4.5 / 0.7 = 6.4, the zoom ratio will be 1:6.4.
Zoom ratio is obtained by the intermediate magnification group of the microscope. When the magnification is increased or decreased by using other objective lenses, the zoom ratio does not change accordingly.
With Two Horizontal KnobsClose Λ
When microscope body changes the magnification, it is realized by adjusting the horizontally placed zoom knob. Because the knob is relatively small, it is therefore easier to zoom and the image is stable.
For most of the dual stereo microscopes, magnification is realized by adjusting the zoom drum or nosepiece below. When the nosepiece is relatively big, frequent operation is more laborious. Magnifying while observing, the microscope may shake, thereby causing eye discomfort for observation.
Using zoom drum or nosepiece type microscope, if there is a ring light under the microscope, the ring light carries the wire, and when magnification conversion is often required, the ring light and the wire will swing along with the magnification, which makes the operation inconvenient. This situation will not occur to zoom with two horizontal knobs.
SiedentopfClose Λ
For siedentopf eyetube, when changing the interpupillary distance, it requires two hands pushing or pulling the two eyetubes left and right simultaneously, and the two eyepiece tubes or eyetubes will change their position at the same time.
Eye Tube AngleClose Λ
Usually the Microscope Eyetube is 45°, some is 30°, Tiltable Eyetube Angle design of a microscope is also known as the ergonomics microscope.
0-30° or 0-45° is an ergonomic design. When the mechanical tube length / focal length of the tube of the microscope is relatively big, the microscope is relatively high, and the user's height or the seat of the work desk is not suitable, long-term use of microscope may cause sitting discomfort.
Eyepiece tube with variable angle can freely adjust the angle without lowering the head. Especially when it is close to 0 degree and the human eye is close to horizontal viewing, long-time or long-term use can avoid fatigue damage to the cervical vertebra.
Erect/Inverted ImageClose Λ
After imaging through a set of objective lenses, the object observed and the image seen by the human eye is inverted. When the observed object is manipulated, move the specimen or object, the image will move in the opposite direction in the field of view. Most of the biological microscopes are reversed-phase designs.
When needing to operate works with accurate direction, it is necessary to design it into a forward microscope. Generally stereo microscopes and metallurgical microscopes are all of erect image design.
When observing through the camera and display, the erect and inverted image can be changed by the orientation of the camera.
360° Degree RotatableClose Λ
The eyepiece of the microscope can have different viewing or observing directions. When the position of the microscope is uncomfortable, the direction of the eyepiece tube of the microscope can be adjusted, to facilitate observation and operation.

Placement method of different viewing angles of the microscope:
General direction: the support column is behind the object to be observed
Reverse direction: the support column is in front of the object to be observed
Lateral direction: the support column is on the side of the object to be observed
Rotating eyepiece tube, different microscopes may have different methods, for some, the direction is confirmed when installing the eyepiece tube of the microscope, for some, by rotating the body of the microscope, and for some, by rotating the support member on the support or holder of the microscope.
Interpupillary AdjustmentClose Λ
The distance between the two pupils of the human eye is different. When the image of exit pupil of the two eyepieces of the microscope are not aligned with the entry pupil of the eye, the two eyes will see different images, which can cause discomfort.
Adjust the distance between the two eyepieces, to accommodate or adapt to the pupil distance of the observer's eyes. The adjustment range is generally between 55-75mm.
Eye Tube Diopter AdjustableClose Λ
For most people, their two eyes, the left and the right, have different vision; for the eyepiece tube, the eyepoint height of the eyepiece can be adjusted to compensate for the difference in vision between the two eyes, so that the imaging in the two eyes is clear and consistent.
The range of adjustment of the eyepiece tube is generally diopter plus or minus 5 degrees, and the maximum differential value between the two eyepieces can reach 10 degrees.

Monocular adjustable and binocular adjustable: some microscopes have one eyepiece tube adjustable, and some have two eyepiece tubes adjustable. First, adjust one eyepiece tube to the 0 degree position, adjust the microscope focusing knob, and find the clear image of this eyepiece (when the monocular adjustable is used, first adjust the focusing knob to make this eyepiece image clear), then adjust the image of another eyepiece tube (do not adjust the focusing knob again at this time), repeatedly adjust to find the clear position, then the two images are clear at the same time. For this particular user, do not adjust this device anymore in the future.
As some microscopes do not have the vision adjustment mechanism for the eyepiece tube, the vision of the two eyes are adjusted through the eyepiece adjustable.
Image Port Switch ModeClose Λ
The third eyepiece splitting in the trinocular microscope is to borrow one of the two sets of eyepiece optical paths as the photographic light path. The beam split prism or beam splitter can reflect part of the image light to the eyepiece, and part passes through to the third eyepiece photographic light path, such a trinocular microscope is called trinocular simultaneous imaging microscope, or true-trinocular.
The beam split prism or beam splitter of the trinocular simultaneous imaging microscope or true-trinocular often has different splitting modes, such as 20/80 and 50/50, etc. Usually, the former is the luminous flux ratio of the eyepiece optical path, and the latter is the luminous flux ratio of the photographic optical path.

The advantage of true-trinocular is that, the real three optical paths can be imaged at the same time, and are not affected by the simultaneous use of the eyepiece observation and the photographic optical path (display). The disadvantage is that, because of the reason of the splitting, the image light of the photography is only a part. In theory, the image effect will be affected, and the effect is more obvious in the binocular eyepiece observation. If viewed closely, one will find that the eyepiece of the light path is relatively dark. However, in the current optical design and materials, the impact on the actual work is not very big, especially in the observation of low magnification objective lens, it has basically no effect at all, and therefore used by many people.
Eyepiece Optical MagnificationClose Λ
Eyepiece optical magnification is the visual magnification of the virtual image after initial imaging through the eyepiece. When the human eye observes through the eyepiece, the ratio of the tangent of the angle of view of the image and the tangent of the angle of view of the human eye when viewing or observing the object directly at the reference viewing distance is usually calculated according to 250 mm/focal length of eyepiece.
The standard configuration of a general microscope is a 10X eyepiece.
Usually, the magnification of the eyepiece of compound microscope is 5X, 8X, 10X, 12.5X, 16X, 20X.
As stereo microscope has a low total magnification, its eyepiece magnification generally does not use 5X, but can achieve 25X, 30X and other much bigger magnification.
Eyepiece Field of ViewClose Λ
The eyepiece field of view is the diameter of the field diaphragm of the eyepiece, or the diameter of the image plane of the field diaphragm imaged by the field diaphragm.
The diameter of a large field of view can increase the viewing range, and see more detail in the field of view. However, if the field of view is too large, the spherical aberration and distortion around the eyepiece will increase, and the stray light around the field of view will affect the imaging effect.
Eyepoint TypeClose Λ
Eye point refers to the axial distance between the upper end of the metal frame of the eyepiece and the exit of pupil.
The exit of pupil distance of high eyepoint eyepiece is farther than that of the eye lens of the ordinary eyepiece. When this distance is greater than or equal to 18mm, it is a high eyepoint eyepiece. When observing, one does not need to be too close to the eyepiece lens, making it comfort to observe, and it can also be viewed with glasses. Generally, there is a glasses logo on the eyepiece, indicating that it is a high eyepoint eyepiece.
Independent Eye GuardClose Λ
The main function of the eye guard is to block the ambient stray light, which makes it more clearer when observing through the eyepiece. In addition, the height of the eye guard is basically the eyepoint exit pupil distance of the eyepiece, and when the eye is close to the eye guard, it is the exact position for clear imaging.
Objective Working DistanceClose Λ
The objective working distance is the vertical distance from the foremost surface end of the objective of the microscope to the object surface to be observed.
Generally, the greater the magnification, the higher the resolution of the objective, and the smaller the working distance, the smaller the field of view. Conversely, the smaller the magnification, the lower the resolution of the objective, and the greater the working distance, and greater the field of view.
High-magnification objectives (such as 80X and 100X objectives) have a very short working distance. Be very careful when focusing for observation. Generally, it is after the objective is in position, the axial limit protection is locked, then the objective is moved away from the direction of the observed object.
The relatively greater working distance leaves a relatively large space between the objective and the object to be observed. It is suitable for under microscope operation, and it is also easier to use more illumination methods. The defect is that it may reduce the numerical aperture of the objective, thereby reducing the resolution.
Objective Screw ThreadClose Λ
For microscopes of different manufacturers and different models, the thread size of their objectives may also be different.
In general, the objective threads are available in two standard sizes, allowing similar objectives between different manufacturers to be used interchangeably.
One is the British system: RMS type objective thread: 4/5in X 1/36in,
One is metric: M25 X 0.75mm thread.
PackagingClose Λ
After unpacking, carefully inspect the various random accessories and parts in the package to avoid omissions. In order to save space and ensure safety of components, some components will be placed outside the inner packaging box, so be careful of their inspection.
For special packaging, it is generally after opening the box, all packaging boxes, protective foam, plastic bags should be kept for a period of time. If there is a problem during the return period, you can return or exchange the original. After the return period (usually 10-30 days, according to the manufacturer’s Instruction of Terms of Service), these packaging boxes may be disposed of if there is no problem.

 


Optical Data

 


Microscope Optical Data Sheet
P/NObjectiveObjective Working DistanceEyepiece
SZ05031131   (10X  Dia. 20mm)SZ05033411   (15X  Dia. 15mm)SZ19013411   (15X  Dia. 15mm)SZ05033611   (20X  Dia. 10mm)SZ19013611   (20X  Dia. 10mm)SZ19013711   (25X  Dia. 10mm)SZ19013811   (30X  Dia. 8mm)
MagnificationField of View(mm)MagnificationField of View(mm)MagnificationField of View(mm)MagnificationField of View(mm)MagnificationField of View(mm)MagnificationField of View(mm)MagnificationField of View(mm)
SZ050342110.5X165mm3.5-22.5X8.89-57.14mm5.25-33.75X6.67-42.86mm5.25-33.75X6.67-42.86mm7-45X4.44-28.57mm7-45X4.44-28.57mm8.75-56.25X4.44-28.57mm10.5-67.5X3.56-22.86mm
SZ050345111.5X45mm10.5-67.5X2.96-19.05mm15.75-101.25X2.22-14.29mm15.75-101.25X2.22-14.29mm21-135X1.48-9.52mm21-135X1.48-9.52mm26.25-168.75X1.48-9.52mm31.5-202.5X1.19-7.62mm
SZ190145111.5X45mm10.5-67.5X2.96-19.05mm15.75-101.25X2.22-14.29mm15.75-101.25X2.22-14.29mm21-135X1.48-9.52mm21-135X1.48-9.52mm26.25-168.75X1.48-9.52mm31.5-202.5X1.19-7.62mm
SZ050346112X33mm14-90X2.22-14.29mm21-135X1.67-10.71mm21-135X1.67-10.71mm28-180X1.11-7.14mm28-180X1.11-7.14mm35-225X1.11-7.14mm42-270X0.89-5.71mm
SZ190146112X33mm14-90X2.22-14.29mm21-135X1.67-10.71mm21-135X1.67-10.71mm28-180X1.11-7.14mm28-180X1.11-7.14mm35-225X1.11-7.14mm42-270X0.89-5.71mm
1. Magnification=Objective Optical Magnification * Body Magnification * Eyepiece Optical Magnification
2. Field of View=Eyepiece Field of View /(Objective Optical Magnification*Body Magnification)
3. The Darker background items are Standard items, the white background items are optional items.



Video Microscope Optical Data Sheet
P/NObjective Coupler
SZ19016111  (0.3X)SZ05036111  (0.35X)SZ05036133  (0.5X)
MagnificationMagnificationMagnification
SZ050342110.5X0.1-0.68X0.12-0.79X0.18-1.12X
SZ050345111.5X0.31-2.02X0.37-2.36X0.52-3.38X
SZ190145111.5X0.31-2.02X0.37-2.36X0.52-3.38X
SZ050346112X0.42-2.7X0.49-3.15X0.7-4.5X
SZ190146112X0.42-2.7X0.49-3.15X0.7-4.5X
1. Magnification=Objective Optical Magnification * Body Magnification * Coupler Magnification



Packing  
Packaging TypeCarton Packaging
Packaging MaterialCorrugated Carton
Packaging Dimensions(1)39x24x36cm (15.354x9.449x14.173″)
Inner Packing MaterialPlastic Bag
Ancillary Packaging MaterialsExpanded Polystyrene
Gross Weight2.43kg (5.36lbs)
Minimum Packaging Quantity1pc
Transportation CartonCarton Packaging
Transportation Carton MaterialCorrugated Carton
Transportation Carton Dimensions(1)39x24x36cm (15.354x9.449x14.173″)
Total Gross Weight of Transportation(kilogram)2.43
Total Gross Weight of Transportation(pound)5.36

Related Products

Customers Also Viewed