Some definition ("practical", not "academic" use of terms):

  • FOV (field of view): represents the actual size of the picture area. The area has normally a square shape. The size can be expressed in terms of angle, area or linear measure; the latter is normally used, and we will use it (below, FOVx and FOVy, or just FOV)
  • Camera Resolution: represents the number of "useful" pixels on the two axes (x-y) of the scanned image. Typically the resolution is higher along the x axis, but this is not a rule (below, RESx and RESy, or just RES)
  • Resolution of measurement: the actual, physical distance between two points of the framed object that are projected on two adjacent pixels; on the two axes, the value is FOVx / RESx and FOVy / RESy (below, RMX and RMy, or just RM)
  • Magnification: is a pure number expressing the ratio between two lengths. In the case of conventional optical instruments, could be the relationship between the extents of the projected image on the retina in with and without lenses. In the case of a monitor camera system, it might (the conditional is a must) be the ratio between the actual size of the framed object and the size on the monitor screen (and therefore higher by using a larger monitor)

 

Accuracy and measurement error
The error of a measurement system with a camera / monitor system is basically the sum of several factors, all occurring during both calibration and measurement: so, in the worst case there is the risk to cumulate both errors:

  • Sampling error, arising from the fact that the camera sensor is not a continuum, but is made of rows and columns of pixels. The sampling error without any pixel interpolation is + / - 1 pixel, or, in absolute value, + / - RM.
  • Optical distortion resulting from the nonlinearity of the objective within the field of view. Except with telecentric lenses, the details in the center of the image appear larger, and this effect is greater the shorter the lens focal length.
  • Parallax error resulting from any misalignment of the sensor plane to the plane of measurement, or misalignment of the latter. This error is undefined.
  • Human error related to an inaccurate positioning of the image adjustment, e.g. as a result of improper lighting and shadow casting. This error is undefined.

That said about the absolute error committed, there is another factor influencing the percentage error instead. At best, i.e. by measuring an object that covers the whole image, the percentage error of measurement is + / - 100 * RM / FOV, or, in other words, + / - 100/RES.
But if an item fits only a portion of the image, the error percentage increases accordingly (e.g. if image cover 1 half of the FOV, the error percentage is doubled).

In conclusion, instead of speaking of "accuracy", it’s better to talk about "measurement resolution saying that that is at best + / - FOV / RES, measured at the maximum magnification.

TROUBLESHOOTING:

IP Transmission
Please be noticed that the IP camera currently only supports transmission in 320x240 pixel resolution, even the camera is 1.3M or better. According to our experience, is strongly recommended a minimum and allocated internet bandwidth of 1MBit/s.

Error: Run time 339 in Windows Vista
Click with the right mouse button on the icon DinoCapure software, the menu options appear on the screen, select "Run as administrator", and confirm by pressing OK. This operation will be needed only once after that Windows Vista will automatically recognize the DinoCapture Dino-Lite microscope each time.

DinoCapture displays images from the webcam but not from the Microscope
In order to verify that there are other webcams or cameras are in conflict with the Dino-Lite microscope proceed as follows:
- Click on Start
- Click on Settings
- Click on Control Panel
- Click on the Hardware
- Click on Device Manager
- Click on image acquisition devices
- Select the device (eg. webcam)
- Press the right mouse button
- Select "Disable"

DinoCapture displays a black window
1. The USB port is not used 2.0
2. The software dino capture it conflicts with another device of "image"
3. Proceed as indicated above

LED lights doesn't works
1. Close the software DinoCapture. Connect the microscope to another USB port and wait for the installation of new hardware that will be done automatically. Reopen the software DinoCapture
2. Check that the cable is plugged into the USB port

Image is out of focus
Turn the black knob until the image will comes sharp

How can I install the Hardware and the Software?
The manual is bundled with the microscope, please read the CD before installation. Keep the CD for future installations DinoCapture. The installation of this software is quite easy and intuitive. Just follow the instructions step by step. The CD will guide you to the end of the installation

What are the minimum system requirements?
1. Windows 98SE, Windows ME, Windows 2000, Windows XP, Windows Vista
2. CPU Pentium 1.5GHZ, Celeron, AMD Athlon or further releases
3. RAM of 128MB (256MB recommended)
4. At least 150MB of free space on your Hard Disk
5. Video Card: 16bit
6. CD-ROM Player
7. At least 1 free USB port (1.1, 2.0 or 3.0)

How to use Dino-Lite microscope?
1. Place the lighted part to be observed at the center of your Dino-Lite
2. Begin by starting the magnification observation less powerful
3. Place the part to be observed in the area of ​​interest
4. Adjust the focus of the microscope by means of rotation of the wheel to adjust the focus, to achieve different magnifications, until you see the picture clear and defined
5. To increase the magnification, turn the wheel of the second Focus model in your possession
6. Using the most powerful zoom, the focus point will be increasingly critical and will approach the object lens for greater clarity
7. Always use the procedures described above, making sure that the lenses should not be in direct contact with the object to be observed
8. Press "Picture" or "Video" from DinoCapture software to capture the photo, or start the video you need to grab.

What are the application areas for Dino digital microscope?
Industrial inspection, scientific, academic learning, control of the Skin, Hair Analysis, Inspection Textiles, Coins, Analysis Prints, easy reading, Webcams, and more.

What about maintenance?
1. Like all high-tech tools, must be kept in a cool, dry place away from dust, fumes, and acids
2. Pulte lens should be as much as possible. Dust particles on the lens could have a negative impact on image quality. Please avoid touching the lens surface, and Never disassemble the microscope
3. When the cleaning of the lenses would be necessary, use dry compressed air to remove dirt

What about Dino-Lite features?
The function of the Dino digital microscope microscopy, room, and even video cam web cam, depends on models.

What about LEDs lights?
Light Emitting Diode (LED) is a semiconductor that emits light to the current steps. The LED lights are sharper and more traditional white light (filament).

What is the maximum magnification of the digital microscope?
The model Dino Digital Microscope has a magnification range from 10x up to 500x

How do I know what the magnification is best for my needs?
Always start viewing with the less powerful magnification. Adjust the magnification to obtain the insight needed.

What to do when your PC crashes using Dino-Lite?
Unfortunately it is a common problem on PCs that run Windows. If it freezes, restart your PC.