Quick Overview
Finite. Body Magnification: 0.7-5X. Zoom Range: 0.7-5X. Zoom Ratio: 1:7.1. Body Mounting Size for Stand: Dia. 76mm. Built-in Objective Magnification: 1X. Achromatic Objective. Objective Working Distance: 100mm. Illumination Type: LED Reflection Light. Top Illumination: Ring Light. LED Quantity: 144. Coupler Magnification: 0.4X. CCD. Image Sensor Size: 1/2 in. 2.0 Megapixels. HDMI / USB 2.0. C-Mount. Camera Crosshairs: Cross Line. Measurement Function: Yes. Mouse Operation: Yes. Memory Type: U Disk. Input Voltage: DC 12V. Power Cord Connector Type: USA 2 Pins.
DM19021101 Digital Microscope Body
Video Monocular Zoom Body
| Body Optical System | Finite |
| Body Magnification | 0.7-5X |
| Zoom Range | 0.7-5X |
| Zoom Ratio | 1:7.1 |
| Zoom Operating Mode | With Two Horizontal Knobs |
| Body Mounting Size for Stand | Dia. 76mm |
| Nosepiece Adapter Size for Ring Light | Dia. 54mm |
| Erect/Inverted Image | Erect image |
| Built-in Objective Magnification | 1X |
| Objective Type | Achromatic Objective |
| Objective Working Distance | 100mm |
| Objective Screw Thread | M23x0.5mm |
| Illumination Type | LED Reflection Light |
| Top Illumination | Ring Light |
| Top Illumination Type | LED |
| LED Quantity | 144 |
| Coupler Magnification | 0.4X |
| Image Sensor | CCD |
| Image Sensor Size | 1/2 in. |
| Image Sensor Diagonal size | 8mm (0.315 in. ) |
| Camera Maximum Pixels | 2.0 Megapixels |
| Camera Resolution | 1920x1080 |
| Camera Signal Output Port | HDMI / USB 2.0 |
| Camera Lens Mount | C-Mount |
| White Balance | Manual/Auto |
| Exposure Control | Manual/Auto |
| Image Comparison | Yes |
| Image Freeze Function | Image Freeze |
| Digital Zoom Function | 6X |
| Camera Crosshairs | Cross Line |
| Number of Crosshairs | 1 Fixed Cross Line |
| Line Color | User Defined |
| Image Capture Output Format | BMP/JPG |
| Measurement Function | Yes |
| Video Output Format | H264 |
| Language | Chinese (Simplified)/Chinese (Traditional)/English/Japanese/Turkey |
| Mouse Operation | Yes |
| Memory Type | U Disk |
| Input Voltage | DC 12V |
| Power Cord Connector Type | USA 2 Pins |
| Power Cable Length | 1.5m |
| Material | Plastic |
| Color | White |
| Net Weight | 0.89kg (1.96lbs) |
Technical Info
Instructions
Video Monocular Zoom BodyClose Λ
| Video monocular zoom body is a zoom body that has only one set of optical paths, and it is also the body of the video continuous zoom. The upper end of the microscope body can be connected to the standard C-interface photo eyepiece, and then connected to the microscope camera; the lower end is the objective lens, and the objective lens of parallel structure is generally separated from the body, whereas the microscope body of finite structure is combined with the objective lens. Some bodies of microscope have also a light source coaxial illumination device. |
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. |
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. |
Built-in Objective MagnificationClose Λ
| The objective of a stereo microscope is mostly built-in objective, which is usually mounted in the microscope body, and it is one or a set of lenses closest to the object to be observed. When not marked, the built-in objective is 1X. |
Objective TypeClose Λ
| In the case of polychromatic light imaging, the aberration caused by the light of different wavelengths becomes chromatic aberration. Achromatic aberration is to correct the axial chromatic aberration to the two line spectra (C line, F line); apochromatic aberration is to correct the three line spectra (C line, D line, F line). The objective is designed according to the achromaticity and the flatness of the field of view. It can be divided into the following categories. Achromatic objective: achromatic objective has corrected the chromatic aberration, spherical aberration, and comatic aberration. The chromatic portion of the achromatic objective has corrected only red and green, so when using achromatic objective, yellow-green filters are often used to reduce aberrations. The aberration of the achromatic objective in the center of the field of view is basically corrected, and as its structure is simple, the cost is low, it is commonly used in a microscope. Semi-plan achromatic objective: in addition to meeting the requirements of achromatic objective, the curvature of field and astigmatism of the objective should also be properly corrected. Plan achromatic objective: in addition to meeting the requirements of achromatic objectives, the curvature of field and astigmatism of the objective should also be well corrected. The plan objective provides a very good correction of the image plane curvature in the field of view of the objective, making the entire field of view smooth and easy to observe, especially in measurement it has achieved a more accurate effect. Plan semi-apochromatic objective: in addition to meeting the requirements of plan achromatic objective, it is necessary to well correct the secondary spectrum of the objective (the axial chromatic aberration of the C line and the F line). Plan apochromatic objective: in addition to meeting the requirements of plan achromatic objective, it is necessary to very well correct the tertiary spectrum of the objective (the axial chromatic aberration of the C line, the D line and the F line) and spherochromatic aberration. The apochromatic aberration has corrected the chromatic aberration in the range of red, green and purple (basically the entire visible light), and there is basically no limitation on the imaging effect of the light source. Generally, the apochromatic aberration is used in a high magnification objective. |
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. |
Coupler MagnificationClose Λ
| Coupler magnification refers to the line field magnification of the coupler/C-mount-adapter. With different magnifications of the adapter lens, images of different magnifications and fields of view can be obtained. The size of the image field of view is related to the sensor size and the coupler/C-mount-adapter magnification. Camera image field of view (mm) = sensor diagonal / coupler/C-mount-adapter magnification. For example: 1/2 inch sensor size, 0.5X coupler/C-mount-adapter coupler, field of view FOV (mm) = 8mm / 0.5 = 16mm. The field of view number of the microscope 10X eyepiece is usually designed to be 18, 20, 22, 23mm, less than 1 inch (25.4mm). Since most commonly used camera sensor sizes are 1/3 and 1/2 inches, this makes the image field of view on the display always smaller than the field of view of the eyepiece for observation, and the visual perception becomes inconsistent when simultaneously viewed on both the eyepiece and the display. If it is changed to a 0.5X coupler/C-mount-adapter, the microscope image magnification is reduced by 1/2 and the field of view is doubled, then the image captured by the camera will be close to the range observed in the eyepiece. Some adapters are designed without a lens, and their optical magnification is considered 1X. |
CCDClose Λ
| CCD, charge coupled device. See CCD and CMOS structure comparison table |
Image Sensor SizeClose Λ
| The size of the CCD and CMOS image sensors is the size of the photosensitive device. The larger the area of the photosensitive device, the larger the CCD/CMOS area; the more photons are captured, the better the photographic performance; the higher the signal-to-noise ratio, the larger the photosensitive area, and the better the imaging effect. The size of the image sensor needs to match the size of the microscope's photographic eyepiece; otherwise, black borders or dark corners will appear within the field of view of observation. |
Camera Maximum PixelsClose Λ
| The pixel is determined by the number of photosensitive elements on the photoelectric sensor of the camera, and one photosensitive element corresponds to one pixel. Therefore, the more photosensitive elements, the larger the number of pixels; the better the imaging quality of the camera, and the higher the corresponding cost. The pixel unit is one, for example, 1.3 million pixels means 1.3 million pixels points, expressed as 1.3MP (Megapixels). |
Camera ResolutionClose Λ
| Resolution of the camera refers to the number of pixels accommodated within unit area of the image sensor of the camera. Image resolution is not represented by area, but by the number of pixels accommodated within the unit length of the rectangular side. The unit of length is generally represented by inch. |
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Camera Signal Output PortClose Λ
| Digital signals output: USB 2.0, USB3.0; 15 Pin VGA; Firewire Port; HDMI; VGA; Camera Link etc. Analog signal output: BNC; RCA; Y-C etc. In addition, some cameras store and output images in the form of a memory card. Usually, industrial cameras often have several output modes on one camera for convenience purposes. |
Camera Lens MountClose Λ
| Industrial camera adapters are usually available in three types: 1. C-Mount: 1" diameter with 32 threads per inch, flange back intercept 17.5mm. 2. CS-Mount: 1" diameter with 32 threads per inch, flange back intercept 12.5mm. CS-Mount can be converted to a C-Mount through a 5mm spacer, C-mount industrial camera cannot use the CS-mount lens. 3. F-Mount: F-mount is the adapter standard of Nikon lens, also known as Nikon mouth, usually used on large-sized sensor cameras, the flange back intercept is 46.5mm. |
White BalanceClose Λ
| White balance is an indicator that describes the precision of white color generated in the image when the three primary colors of red, green and blue are mixed, which accurately reflects the color condition of the subject. There are manual white balance and automatic white balance. White balance of the camera is to "restore white objects to white color under any light source." The chromatic aberration phenomenon occurred under different light sources is compensated by enhancing the corresponding complementary color. Automatic white balance can generally be used, but under certain conditions if the hue is not ideal, options of other white balance may be selected. |
Camera CrosshairsClose Λ
| Camera crosshairs refers to the preset reference line within the camera, which is used to calibrate various positions on the display. The most commonly used is the crosshair, which is to determine the center position of the camera image, and it is very important in measurement. Some cameras also have multiple crosshairs that can be moved to quickly detect and calibrate the size of the object being viewed. Some crosshairs can also change color to adapt to different viewing backgrounds. |
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
| Camera Image Sensor Specifications | |||
| No. | Camera Image Sensor Size | Camera image Sensor Diagonal | |
| （mm） | （inch） | ||
| 1 | 1/4 in. | 4mm | 0.157" |
| 2 | 1/3 in. | 6mm | 0.236" |
| 3 | 1/2.8 in. | 6.592mm | 0.260" |
| 4 | 1/2.86 in. | 6.592mm | 0.260" |
| 5 | 1/2.7 in. | 6.718mm | 0.264" |
| 6 | 1/2.5 in. | 7.182mm | 0.283" |
| 7 | 1/2.3 in. | 7.7mm | 0.303" |
| 8 | 1/2 in. | 8mm | 0.315" |
| 9 | 1/1.9 in. | 8.933mm | 0.352" |
| 10 | 1/1.8 in. | 8.933mm | 0.352" |
| Packing | |
| Packaging Type | Carton Packaging |
| Packaging Material | Corrugated Carton |
| Packaging Dimensions(1) | 48.5x30x20cm (19.094x11.811x7.874″) |
| Inner Packing Material | Plastic Bag |
| Ancillary Packaging Materials | Expanded Polystyrene |
| Gross Weight | 1.91kg (4.21lbs) |
| Minimum Packaging Quantity | 1pc |
| Transportation Carton | Carton Packaging |
| Transportation Carton Material | Corrugated Carton |
| Transportation Carton Dimensions(1) | 48.5x30x20cm (19.094x11.811x7.874″) |
| Total Gross Weight of Transportation(kilogram) | 1.91 |
| Total Gross Weight of Transportation(pound) | 4.21 |
| Quantity of One Transportation Carton | 1pc |
