Lors du choix d'un objectif pour votre caméra industrielle, il est important de prendre en compte que la résolution de l’objectif correspond à la taille des pixels de votre caméra industrielle. La résolution de l’objectif est mesurée en paires de lignes « line pairs » par mm (lp/mm). Cela garantit les performances optimales de votre caméra industrielle. Cet article explique le principe de la résolution de la lentille en paires de lignes par mm (lp/mm) et comment calculer la compatibilité avec votre caméra industrielle. La résolution de l'objectif en paires de lignes par millimètre (lp/mm) et la taille des pixels jouent toutes deux un rôle important dans l'imagerie numérique. Le nombre de paires de...
Upgrading from a webcam to an industrial machine vision camera brings a lot of benefits in terms of image quality, performance, and functionality. In this article, we will discuss the advantages of using an industrial machine vision camera and how it differs from a webcam. The differences between a webcam and an area scan camera Webcams are common in many applications, from video conferencing to streaming. They are relatively inexpensive and easy to use, but they have limited functionality and lower image quality compared to industrial machine vision cameras. Industrial machine vision cameras are designed for applications that require high-quality images, high-speed imaging, and advanced features. They are widely used in industries such as manufacturing, automation, robotics, and quality control. The purpose of a webcam is to...
Machine vision industrial lights are reliable products which provide constant, non-fluctuating power/light output. They are designed to be used 24/7, providing the best light conditions and machine vision lights are available in many colours to create extra contrast. The machine vision lights have a long-life cycle and therefore the same light with the same specs and output can be purchased for many years. Machine vision lights have a great batch repeatability and minimal led characteristic variations between batches that could cause quality deviations. Industrial lights are powered with constant DC voltage and reliable power sources, therefore there is no flickering. Additionally, it’s possible to over strobe the light, to achieve higher light intensity with the same light (for shorter time). There are several types...
L’obturateur global (global shutter en anglais) est utilisé pour capturer des objets en mouvement, tandis que l’obturateur roulant (rolling shutter en anglais) est utilisé pour capturer des images fixes. Une caméra à rolling shutter est moins coûteuse, notamment pour des résolutions supérieures à 1,6 mégapixel. Par exemple, notre caméra à rolling shutter de 12 MP coûte environ 200 euros : MER2-1220-32U3C. En revanche, notre caméra à global shutter de 12 MP coûte environ 1000 euros : ME2P-1230-23U3C. Un global shutter a des pixels plus grands, nécessitant ainsi un capteur plus grand qu'une caméra à rolling shutter. En conséquence, une caméra à global shutter est plus...
Arm embedded platforms are very popular for embedded vision. Many of these platforms have a USB2, USB3 and or GigE ethernet port. Our USB3 and GigE Vision Cameras work with these ARM embedded platforms. The Raspberry Pi, that has a USB2 port, even works with our USB3 cameras on reduced frame-rate . Which embedded board to select with a USB3 Vision Camera There are many embedded boards available in the market that work with our USB3 Vision Cameras. The following ARM platforms were extensively tested with our machine vision cameras: NVIDIA Jetson TX1/TX2 NVIDIA Tegra TK1 Toradex Apalis TK1 on Ixora Carrier Board Raspberry Pi 3B, incl. support of the camera module. However other popular embedded boards are: - Odroid XU4 - NanoPi M4 - NVIDIA Jetson Nano - Firefly The Raspberry Pi is prefered...
Daheng Imaging is familliar in the industrial polarized camera segment by implementing the Sony-IMX250MZR monochrome image-sensor . Recently the IMX264MZR has also been added to the portfolio. The Industrial polarization camera systems are able to capture information which a normal line or area industrial camera is not able to obtain. A polarization camera conducts a two-dimensional analysis. It measures both the degree and direction of the polarization of the light. As a result the final image has almost none reflections from external lightsources. A polarized camera is ideal for applications like the inspection of glossy products and transparent products. Standard Machine vision camera versus polarized camera The following examples show on the left hand side an image captured with a standard machine vision...
USB3 Vision standard is an imaging interface standard for industrial USB3 vision cameras. The majority of camera manufacturers have already adopted this standard, and the number of compatible accessories is growing quickly. A big advantage of the USB3 interface is that, any of the PCs, laptops and smartphones have a USB 3.0 interface built in nowadays. In the field of vision technology, USB 3.0 is also replacing dated interfaces such as the FireWire, Cameralink and USB2.0. The speed of the USB3 vision camera interface The USB 3.0 interface, also known as Super-Speed USB, is the following line of the well-known plug and play Universal Serial Bus spec that builds on the assets of USB 2.0 and washed out its weaknesses. The operative bandwidth accessible with the use of USB 3.0 when transferring bulks of data totals 350-450 MB/s,...