Telescope Astronomical Camera Frozen Astro Camera 2000W Pixel Back-illuminated

Description

The
QHY18
3
is
an 1.
2
0inches
Me
gapixel back-il
luminated COLDM
OS, color.
T
he pixel size is 2.4um high resolution with modest telescopic size.
The camera is capable of producing 19FPS @ 20 Megapixels.
It has a two-stage TEC that cools the sensor to -40C to -45C below its surroundings.
The ADC is 10/12-bit and 8/12-bit output with 1e-read noise!
Co
mputer interface is USB 3.0 and exposure times can be set from 50us to about 1000 sec.
128 MB DDR Buffer
T
he QHY183 has built in 128 MB DDRII image buffers.
The benefit of image buffers is that the memory will cache the image and transfer it to the computer when the USB interface is not busy or gets interrupted, and the frame will not be lost or corrupted.
This buffer also allows a slower computer with USB 2.0 socket to capture each frame without losing even when the USB socket sometimes gets busy with other peripherals.
This buffer also helps many camera applications and avoids USB transfer problems.
For example, it is possible to operate four QHY183 cameras on the same computer to crea
te an LRGB image array.
Full Anti-Dew Solution
With over a decade of camera cooling design experience, QHYCCD has been applying this knowledge to the QHY183 camera.
The full anti-frost technology includes a sealed CMOS chamber with silicon gel tube socket and a heated optical window chamber.
This technology prevents dew from forming on the sensor itself, or on the window chamber, even in a high humidity environment.
Sony's Image Sensor Exmor R is a CMOS back-illuminated image sensor with improved sensitivity and noise reduction-the key element to enhance image quality, while thoroughly realigning their basic pixel texture Structure from pre-illuminated to back-lighting.
It retains the advantages of CMOS image sensors such as low power consumption and high speed operation while significantly improving sensitivity.
With a conventional front-lighting structure, the metal wiring and transistors on the surface of the silicon substrate are formed by light-sensitive sensors (photo-diode) that interfere with the photon Collecting is done by the on-chip lens, and this has also been an important issue in shrinking pixel size and expanding the optical angle of response.
A back-illuminated structure minimizes the degradation of sensitivity to the optical angle response, while also increasing the amount of light entering each pixel due to the lack of obstacles such as metal wiring and transistors.
That has been moved to reverse the substrate's silicon substrate.
However, compared with conventional front-illuminated structure, back-illuminated structure has historically caused problems such as noise, darkening current, defective pixels and mixed colors leading to image degradation.
And also caused a reduction in signal-to-noise ratio To overcome this Sony recently developed a unique image-diode structure and on-chip lens optimized for back-illuminated structures.
That achieves a higher sensitivity and lower random no-light noise by reducing noise, dark current and defective pixels compared to conventional front-illuminated structures.
In addition, Sony's advanced technologies such as high-precision correction have satisfactorily resolved any mixed color issues.
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or any questions before and after sale, please leave us ebay message, and we will do our best to resolve them.