1.3MP Monochrome Digital CMOS USB 2.0 Camera DK1000M

$USD 1,095.00

DK1000M digital camera is designed to be a cost-effective, versatile solution for clinical, life science, materials science and educational professionals. With 1280×1024 resolution and on-board processing, the DK1000M delivers outstanding image quality for a wide variety of scientific applications.

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DK1000M digital camera is designed to be a cost-effective, versatile solution for clinical, life science, materials science and educational professionals. With 1280×1024 resolution and on-board processing, the DK1000M delivers outstanding image quality for a wide variety of scientific applications.

1.3MP Monochrome Digital CMOS USB 2.0 Camera DK1000M

The DK1000M features include:

  • The high-speed USB 2.0 interface eliminates a framegrabber and facilitates ease of installation on both laptop and desktop computers
  • The low noise characteristic of the DK1000M progressive scan 1.3 megapixel image sensor results in crisp color quality for the most demanding brightfield and darkfield microscopy applications including clinical pathology and cytology, life science and geology
  • Full color sub-windowing allows for rapid, focus and scanning of samples: 15 fps at full 1280×1024 resolution and 60 fps at 640×480 resolution
  • Select 8 & 10-bit pixel data modes
  • The RGB data captured through each pixel contains 30-bits of color image information resulting in 1024 intensity values
  • Camera control through an intuitive user TWAIN interface results in rapid image capture archiving and documentation for high throughput applications, demanding research environments and teaching facilities
  • The DK1000M has a compact design equipped with a C-Mount, facilitating installation on all microscope configurations including upright, inverted and stereo
  • DK1000M cameras are software compatible with Windows™ 98 SE, Windows ME, Windows 2K and Windows XP operating systems

 

CCD vs CMOS

Meiji Techno America allows Digital / Analog CCD and CMOS cameras to be mounted directly to a microscopes trinocular port using the proper C” mount adapter that match’s the chip size of the camera. Any digital or video camera with a “C” mount ( 1” diameter thread) can be mounted on any Meiji Techno Trinocular microscope ( 25.2 tube ) by using these “ C”- mount attachments. They are available with projection lenses of different powers allowing some control over the magnification and the field view. “CS” mount cameras with require part number V-5MM to be threaded on prior to installing the adapter. Meiji Techno America’s adapters depend on the quality of our Japanese lenses. Our microscope adapters are designed and developed individually for each camera’s lens system and therefore it effectively eliminates vignetting and minimizes optical errors often associated with photomicrography by a consumer digital /analog camera. The image quality, peripheral resolution and color rendering is optimum as you would expect for a high quality Japanese C” mount adapter from Meiji Techno.

Generally low end adapters in the market have one or more of the following problems often associated with photomicrography:

  • Vignetting: Magnification, optical design error, or fundamental structural defect causes vignetting
  • Linearity: Image may look distrorted (barrel distortion) especially at the peripheral area in focus
  • Light and Shade Gap: Brightness between center and peripheral area looks different even if lighting is even
  • Geometry Distortion: Compare to the center area, image is distorted and lower resolution in the peripheral area
  • Luminous Point: White/Black spot may appear on the image because of the internal-reflection in the lens and lens tube

Introduction to Image Sensors
Since every Digital camera has a sensor, it is usually either a CCD or a CMOS type chip sensor. All sensors are analog devices, converting photons into electrical signals. The process by which the analog information is changed to digital is called Analog to Digital conversion. When an image is being captured by a network camera, light passes through the lens and falls on the image sensor. The image sensor consists of picture elements, also called pixels, that register the amount of light that falls on them. They convert the received amount of light into a corresponding number of electrons. The stronger the light, the more electrons are generated. The electrons are converted into voltage and then transformed into numbers by means of an A/D-converter. The signal constituted by the numbers is processed by electronic circuits inside the camera. Presently, there are two main technologies that can be used for the image sensor in a camera, i.e. CCD(Charge-coupled Device) and CMOS (Complementary Metal-oxide Semiconductor). Their design and different strengths and weaknesses will be explained in the following sections.

Color Filtering
Image sensors register the amount of light from bright to dark with no color information. Since CMOS and CCD image sensors are ‘color blind’, a filter in front of the sensor allows the sensor to assign color tones to each pixel. Two common color registration methods are RGB (Red, Green, and Blue) and CMYG (Cyan, Magenta, Yellow, and Green). Red, green, and blue are the primary colors that, mixed in different combinations, can produce most of the colors visible to the human eye.

CCD Technology
In a CCD sensor, the light (charge) that falls on the pixels of the sensor is transferred from the chip through one output node, or only a few output nodes. The charges are converted to voltage levels, buffered, and sent out as an analog signal. This signal is then amplified and converted to numbers using an A/D-converter outside the sensor. The CCD technology was developed specifically to be used in cameras, and CCD sensors have been used for more than 30 years. Traditionally, CCD sensors have had some advantages compared to CMOS sensors, such as better light sensitivity and less noise. In recent years, however, these differences have disappeared. The disadvantages of CCD sensors are that they are analog components that require more electronic circuitry outside the sensor, they are more expensive to produce, and can consume up to 100 times more power than CMOS sensors. The increased power consumption can lead to heat issues in the camera, which not only impacts image quality negatively, but also increases the cost and environmental impact of the product. CCD sensors also require a higher data rate, since everything has to go through just one output amplifier, or a few output amplifiers.

CMOS Technology
Early on, ordinary CMOS chips were used for imaging purposes, but the image quality was poor due to their inferior light sensitivity. Modern CMOS sensors use a more specialized technology and the quality and light sensitivity of the sensors have rapidly increased in recent years. CMOS chips have several advantages. Unlike the CCD sensor, the CMOS chip incorporates amplifiers and A/D-converters, which lowers the cost for cameras since it contains all the logics needed to produce an image. Every CMOS pixel contains conversion electronics. Compared to CCD sensors, CMOS sensors have better integration possibilities and more functions. However, this addition of circuitry inside the chip can lead to a risk of more structured noise, such as stripes and other patterns. CMOS sensors also have a faster readout, lower power consumption, higher noise immunity, and a smaller system size. It is possible to read individual pixels from a CMOS sensor, which allows ‘windowing’, which implies that parts of the sensor area can be read out, instead of the entire sensor area at once. This way a higherframe rate can be delivered from a limited part of the sensor, and digital PTZ (pan/tilt/zoom) functions can be used. It is also possible to achieve multi-view streaming, which allows several cropped view areas to be streamed simultaneously from the sensor, simulating several ‘virtual cameras’.

Main Differences
A CMOS sensor incorporates amplifiers, A/D-converters and often circuitry for additional processing, whereas in a camera with a CCD sensor, many signal processing functions are performed outside the sensor. CMOS sensors have a lower power consumption than CCD image sensors, which means that the temperature inside the camera can be kept lower. Heat issues with CCD sensors can increase interference, but on the other hand, CMOS sensors can suffer more from structured noise. A CMOS sensor allows ‘windowing’ and multi-view streaming, which cannot be performed with a CCD sensor. A CCD sensor generally has one charge-to-voltage converter per sensor, whereas a CMOS sensor has one per pixel. The faster readout from a CMOS sensor makes it easier to use for multi-megapixel cameras. Recent technology advancements have eradicated the difference in light sensitivity between a CCD and CMOS sensor at a given price point.

Conclusion
CCD and CMOS sensors have different advantages, but the technology is evolving rapidly and the situation changes constantly. Using the proper C” mount adapter from Meiji Techno America will maximize your image quality that you are seeing through your microscope lens.

Note: Reduction lenses (i.e. magnification factors less than 1.0x) are commonly used to compensate for the increased magnification factor inherent with cameras used on microscopes.

1.3MP Monochrome Digital CMOS USB 2.0 Camera DK1000M

Recommended Applications:
• Brightfield
• Darkfield
• Pathology
• Cytology
• Life Science
• Geology

Camera Sensor
Image Sensor  CMOS 1.3 MP mono
Optical Format  1/2″
Pixel Size  5.2 µm x 5.2 µm
Resolution  1280 x 1024 pixels
Camera Specifications
Frame Rate  15 fps at full resolution, 60 fps at 640 x 480
Bit Depth  8 and 10-bit uncompressed
Auto Exposure  Manual and automatic control
Gain Control  Programmable
Gain Range  1 to 10 x optimizable
White Balance  Automatic and manual control
Camera Characteristics
Read Noise  20 e- rms
Mechanical Specifications
Data Interface  USB 2.0 high-speed interface
Lens Mount  C-Mount lens adapter
Dimensions (L x W x H)  3.85 x 2.00 x 2.75 inches
Mass  300g
Operating Temperature  0° C to +50° C
Storage Temperature  -30° C to +70° C
Operating Humidity  5%-95%, Non-condensing
Camera Software
Operating Systems  Windows 98, ME, 2000, or XP
Power and Emissions
Power Consumption  ~2.5 watts
Power Requirement  USB bus power or external 5VDC – 500mA
 System Requirements
Recommended PC Specs • Pentium 4, 1.3 GHz or higher
• 512 MB RAM
• 60 GB hard drive free space or more
• USB 2.0 Port Windows 2000 or XP
Minimum PC Specs • 600 MHz Processor
• 256 MB of SDRAM
• 200 MB hard drive free space
• USB 2.0 Port
•Windows 98 or ME
Included in the Box
DK1000M
 1.3 MP Digital Camera for USB 2.0
CD-ROM  CD-ROM with INFINITY user application software, includes TWAIN driver
Cables  USB 2.0 cable

"Diagram"
Monochrome Quantum Efficiency Curve
"Monochrome

Model Version Image Sensor Max. Resolution Video Frame Rate
HD1500T Color 1/2.8″ format
5.7mm x 4.28mm
2MP
1980 x 1080
30 fps @ 1440 x 1080
60fps @ 640 x 480
HD1500TM Color 1/2.8″ format
5.7mm x 4.28mm
with 11.8in Monitor
2MP
1980 x 1080
30 fps @ 1440 x 1080
60fps @ 640 x 480
DK-LITE-B Color 1/2.5″ format
5.7mm x 4.28mm
1.5MP
1440 x 1080
15 fps @ 1440 x 1080
60fps @ 640 x 480
DK1000CB Color 1/2″ format
6.5mm x 5.3mm
2.0MP
1600 x 1200
15 fps @ 1600 x 1200
DK1000M Monochrome 1/2″ format
6.5mm x 5.3mm
1.3MP
1280 X 1024
30 fps @ 1280 X 1024
DK3000C Color 1/2″ format
6.5mm x 4.9mm
3.1MP
2048 x 1536
12 fps @ 2048 x 1536
120fps @ 640 x 480
DK5000C Color 1/2.5″ format
5.7mm x 4.28mm
5.0MP
2592 x 1944
5 fps @ 2592 x 1944
60fps @ 640 x 480
HD2000C Color 1/3″ format
5.2mm x 2.7mm
2.0MP
1920 x 1080
60fps @ 1920 x 1080
ST1000C Color 1/2.5” format 5.0MP
2592 x 1944
60fps @ 2592 x 1944

1.3MP Monochrome Digital CMOS USB 2.0 Camera DK1000M1.3MP Monochrome Digital CMOS USB 2.0 Camera DK1000M

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