Sunday, 15 February 2015

Imaging Lenses

Imaging Lenses are used to view objects in imaging systems. Imaging Lenses are imaging components used in imaging systems to focus an image of an examined object onto a camera sensor. Depending on the lens, Imaging Lenses can be used to remove parallax or perspective error or provide adjustable magnifications, field of views, or focal lengths. Imaging Lenses allow an object to be viewed in several ways to illustrate certain features or characteristics that may be desirable in certain applications.

When optical designers attempt to compare the performance of optical systems, a commonly used measure is the modulation transfer function (MTF). MTF is used for components as simple as a spherical singlet lens to those as complex as a multi-element telecentric. In order to understand the significance of MTF, it is to consider some general principles and practical examples for defining MTF including its components, importance, and characterization.

Applications of Imaging Lenses
  • Industrial Cameras
  • Microscope Cameras
  • Integrated Optic Cameras
  • Board Cameras
  • Auto focus Cameras
  • Zoom Cameras
Some of the Imaging Lenses available with us are:-

Edmund Optics

Imaging is used to provide viewing or image capture capabilities to a wide range of applications including machine vision or inspection. Imaging setups often consist of a camera with an imaging lens, in addition to the proper illumination for the environment or application. Depending on the camera, imaging lens, or illumination source, Imaging systems can differ greatly from application to application. Cameras are designed as analog or digital for color or monochrome image capture.

Edmund Optics offers a wide range of Imaging products designed for a variety of applications. Edmund Optics offers a large selection of cameras with digital interfaces including FireWire, Camera Link, USB, or GigE, with CCD or CMOS sensors. Imaging Lenses offered include telecentric, zoom, fixed focal length, or micro-video. A variety of products designed for modifying, testing, or calibrating Imaging systems are also available, including test targets or imaging filters. Imaging accessories or adapters are available to provide additional versatility or ease-of-use.

Know More About  Imaging Lenses


Video Surveillance, Machine Vision, Intelligent Transportation Systems, Life Sciences, Defense, OEM, Computar CCTV lenses are employed extensively in high-security applications such as airports, banks, government buildings and commercial industries.

We are constantly engaged in researching the latest CCTV technology in order to meet the security challenges of today to ensure you a safe and secure future.

Contact Us at:

Menzel Vision & Robotics Pvt Ltd
Address: 4, A-Wing, Bezzola Complex,
Sion Trombay Road, Chembur
400071 Mumbai, India
Tel:(+91) 22 67993158
Fax: (+91) 22 67993159
Mobile:+91 9323786005 / 9820143131
Website :

Sunday, 8 February 2015

Premium Testing for Premium Automobile

High-Performance Imaging System with 26 Digital Cameras puts SUV instrument panel carrier to the ultimate test.

At the BMW factory in Landshut, Germany, an on-site testing facility using digital cameras from Allied Vision Technologies tests instrument panel carrier frames for the MINI Countryman. This component, unnoticed by the average person, plays an important role in the safety and quality look and feel of the vehicle: the dashboard is mounted to this structural element. Important components such as the steering column as well as knee airbag modules belong to this assembly. Furthermore, the panel’s geometry must fit perfectly with the car’s interior, allowing for custom-fit assembly and delivering an high perceived quality. 

The Challenge: 3D measurement from different angles

Ziemann & Urban, a testing and automation specialist located in Moosinning (Bavaria), was contracted by the BMW Group to develop and build a self-contained test chamber for inspection of the carrier’s geometry. Over the past 20 years, Ziemann & Urban has evolved into an established purveyor of turnkey solutions for automation testing and quality assurance. Their 35-member team designs test and measurement systems for many application fields, most notably for the automotive, plastics, semiconductor and medical technology industries.

The testing system for BMW must provide a 100% measurement of the frame’s dimensional accuracy during production and within the production environment. The position of attachment points – such as those for airbags and steering columns – must be measured three-dimensionally. Moreover, the presence and absence of burr on bore holes and openings for the assembly of interiors and other components must be monitored. The entire measurement should occur automatically within 5 seconds, and the installation must be able to inspect two product varieties – left- und right-hand drive models.

One additional technical challenge is that, due to the element’s angular form, not all test points can be detected from the same angle of view. For this reason, a mechanical rotation of the support frame was considered, to allow the cameras to visualize hidden points requiring inspection.

"Mirror, mirror, on the wall..."

Utilizing a particularly shrewd adjustment of both the test object and the cameras as well as the clever use of background illumination and tilted mirrors, Ziemann & Urban was able to forgo such an elaborate manipulation of the support frame. "Mechanically moving the object, no matter how well technically executed, brings about tolerance challenges and has a negative effect on the precision of the three-dimensional measurement," explained Markus Urban, Project Manager at Ziemann & Urban. "Doing away with it makes the measurement process simpler and faster."

The instrument panel carrier is positioned and clamped in a customized apparatus. Doing so excludes the possibility that the measurement will be corrupted by an incorrect position in the cabinet. For 3D measurements, 2 sets of 8 FireWire cameras with VGA resolution are used — 8 each for the left- and right-hand drive versions. With the aid of several laser line projectors, the object’s geometry is highlighted in the image. Measurement points are illuminated with LED spotlights as well as by surface background lighting. 

For presence detection of bore holes and openings, 6 FireWire cameras with 1.25 to 5 megapixel resolution are installed that then inspect the component from top to bottom – with tilted mirrors where applicable. Bore holes are highlighted by the light box integrated into the fixture, that illuminates the frame from below. Four more cameras with VGA resolution inspect angular test points that are undetectable from above.

In that all cameras, laser emitters and lighting units are permanently mounted and the test object is not moved, Ziemann & Urban fulfills all of the BMW Group’s precision requirements. Even deviations caused by temperature are compensated for by special decoupling devices on the cameras as well as continuous monitoring of the temperatures of the component, the measurement device, and the environment. The result is a measurement precision of approximately 25 ┬Ám, which normally is only achieved in air-conditioned inspection rooms. Measurement precision is ensured by cyclical analyses, performed in regular intervals, of the measurement equipment’s capability.

Measurement results are stored in a database and can be assigned to each individual part. For this function, the system reads out the data matrix code of each component and stores it with the measured values. 

Read More About Machine Vision Cameras for Industrial Inspection by Allied Vision

View More Machine Vision Cameras Products

To Know More About Machine Vision Cameras with FireWire and Gigabit Ethernet (GigE) interface by Allied Vision Technologies Contact us now @ 
(+91) 22 67993158 OR Email us