Engineering Jobs

Here are some current job availabilities – both in the San Francisco Bay Area and telecommuting (United States).

Some of the positions available include:

• Sr. UI Engineer
• Flash/Flex, ActionScript Engineer
• Ruby-on-Rails Engineer (Anywhere)….

For details, see http://sf-bay-area-jobs.blogspot.com/

New listings will continually be updated here and on that site. San Francisco area Engineers are encouraged to submit resumes even if there is not a job posted for your skill set, as new openings always come in!

Custom Arc Gradient Filter Development

Reynard Corporation successfully completes a Navy Phase II SBIR development

 

San Clemente, CA – Reynard Corporation, a leading global supplier of optical components and custom thin film coatings has successfully completed a Phase II SBIR development program for the Navy by delivering a specialized, multi-functional optical filter.

The filter integrated several optical functions into a single device, including:

• Narrow bandpass filter
• Wide out-of-band blocking
• Novel arc-gradient variable filter

 

The solution was based on a combination of custom designed thin film filters, utilization of specialized filter glass, and the development of proprietary tooling for the implementation of the gradient function.  The final filter met the environmental and durability requirements of MIL-PRF-13839B and MIL-C-48497A. 

The arc-gradient function was a key element that challenged the leading global optical supplier in one of its core competencies.  Not only did the gradient have to follow a very precise exponential function that changed optical density from OD 0 to OD 6 in less than 0.25 inches, but it had to make this transition in a radial-arc segment.  Specialized coating tooling, as well as metrology instrumentation were designed and built to implement and validate the gradient function.

The filter design targeted air-to-air missiles commonly used in Navy fighters, and can be adapted for the specific needs of other optical target detectors.  The delivered filter met the requirements of the program, which was to design a precision filter that would fit into a small space and provide the necessary optical filtering compatible with the unique detector design.  Reynard Corporation was able to leverage from their custom design experience and defined an approach that proved ultimately successful.   A Commercial Off-The-Shelf (COTS) design approach, utilizing available discrete optical elements could not be used due to the system requirements and limited space.

 “Using custom optical element solutions to combine multiple optical functions into a single element instead of a COTS based solution saves in overall system weight, space, and cost,” says Randy Reynard, Vice President and SBIR Program Manager, “It’s a fallacy that custom solutions are always more expensive than COTS solutions, especially when multiple optical functions are required, or large volumes are needed.”

About Reynard Corporation
Established in 1984, Reynard Corporation designs and manufactures precision thin film optical products for a global customer base, both military and commercial.  In-house operation capabilities include design, fabrication, photolithography, coating, and sub-assembly for a one-stop solution.  Contact our Sales Department for further information (949)366-8866, info@reynardcorp.com or for a free optical reference and product catalog, or visit our webpage for online ordering and reference at http://www.reynardcorp.com

Reverse Engineering, Engineering Design, Reverse Engineering Process

3D Scanner, 3D Scanning, and 3D Scanners along with technology for 3D Scanners

Reverse Engineering can be defined as the process wherein a device’s, object’s, or system’s technological principles are discovered by analyzing its operation, function, and structure. It often refers to detaching something, say- a software program, electronic equipment, or mechanical device and carrying out the analysis of its workability in detail. This is done in order to manufacture a new program or device which performs the same function without doubling anything from original.

Motivation: Reasons behind the emergence of reverse engineering include interoperability, lost documentation which means loss or non-existence of documentation of the concerned device, product analysis, security auditing, exclusion of protection of copy, circumvention of restrictions regarding access, and fraud.

‘Reverse Engineering’ of ‘mechanical devices’ : With the ever-increasing popularity of CAD, ‘reverse engineering’ has proven to be a blessing for creation of ‘3D virtual model’ of the on hand physical part to be used in 3D CAE, CAM, CAD and many other soft wares. The measuring of physical object can be done by making use of ‘#D scanning technologies’ such as computed tomography, ‘structured light digitizers’, laser scanners, and CMMs. The data that is measured usually gets represented as ‘point cloud’. It is devoid of topological information. That’s why, the processing and modelling takes place into usable format like a ‘triangular faced mesh’, CAD model, or a collection of surfaces of NURBS. Applications such as Polyworks, Image ware, Geomagic, or Rapidform are used for processing the ‘point clouds’ into the formats that can be used in applications like 3D CAE, CAM, CAD or visualization.

‘Reverse Engineering’ of ‘software’ : The term ‘reverse engineering’ differs from person to person when applied in terms of software. As per the research conducted by Cross and Chikofsy, reverse engineering can be referred to as the process that involves the analysis of the subject system for creating its representation at the higher level. This level might be called the ‘level of abstraction’. As far as software is concerned, reverse engineering can be described as an examination process only. There is no modification from the software point of view. The use of ‘software anti-tamper technology’ takes place in order to deter reengineering and reverse engineering of the software-powered systems and proprietary software.

Two major reverse engineering types exist in the present scenario. In the first type, source code is available, but program’s greater level aspects are poorly documented or invalidated. In the second type, source code does not exist. Any efforts made in this direction would be termed as ‘reverse engineering’. The 2nd use is that which majority of people know. ‘Reverse Engineering of software’ is implied at making use of ‘clean room design’ technique for avoiding infringing copyrights. In today’s world, around 95% of reverse engineering consists of ‘reverse engineering of software’.

On the other hand, ‘black box testing’ in ‘software engineering’ has many similarities to reverse engineering. The tester normally possesses the API. However, their main goal is to locate undocumented features and bugs by smashing the products from the outside. This process is used for customizing the embedded systems as well.
Article Tags: Reverse Engineering

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