Tech Briefs Magazine - November 2021 - PIT-9

previous section, we focus on the first
entry in the table, the JENOPTIK
EVIDIR. EVIDIR alpha is a family of
compact, " plug and play " , infrared
imagers that offer a variety of standard
configuration options such as video format
(VGA or QVGA), frame rate,
mechanical shutter or long-term stable
shutter-less operation, multiple standard
communication interfaces (USB,
GigE, and CMOS) and lens options to
allow imager fields of view from 5
degrees to 60 degrees.
The imagers are fully functional as
stand-alone devices, but they have been
designed to facilitate integration into
OEM (original equipment manufacturer)
applications. EVIDIR's " toolbox " approach
of available configuration options
is employed for easy customization.
Options such as lenses, shutter, video format,
and communication interface are
modular, allowing the customer to mix
and match to best suit their application.
The QVGA and VGA versions of both
the imager and radiometric imagers
share common mechanical, optical,
electrical and command interfaces to
allow for easy upgradeability and to
minimize OEM development time. The
imagers are built around state-of-the
art, 12 µm pixel, uncooled microbolometer
focal plane arrays and stable,
uniform, thermal images with better
than 30 mK NETD standard. The imager
core is a two-board stack consisting
of the focal plane array (integrated into
a printed circuit assembly) and processor
board.
The native output format of the
imager is CMOS and OEM integrators
can utilize this format to minimize
size and power or select an interface
board to convert the output to the
desired standard image formats (e.g.
USB or GigE). CMOS versions of the
imager draw <950mW for a QVGA
imager running at 60Hz. The imager
aluminium housing assembly measures
20mm ¥ 30mm ¥ 30mm and
weighs 27g without lens. There are
various lens adapters to allow a multitude
of off-the-shelf lenses to be utilized
to best match the application.
Radiometric cameras get an enhanced
calibration but are otherwise identical
to the imager versions.
Summary
Today's state-of-the-art thermal
imagers offer OEMs a higher performance,
lower cost, alternative to prior
Photonics & Imaging Technology, November 2021
Cov
ToC
QVGA and VGA thermal and radiometric
cameras on the market. When
designed appropriately, thermal imager
customization allows OEM's to tailor the
camera to best suit their application and
minimize cost.
Continued industry enhancements
will provide customers with exactly the
right product for their needs including
SXGA (1280 ¥ 1024) sensors with
12µm pitch, enhanced XGA (1024 ¥
768) sensor and VGA (640 ¥ 480) technology,
resolution enhancement, subframes,
digital electronic zoom (ezoom)
and electronic image stabilization,
shutter or shutterless operation,
additional selectable frame rates, and
optional electrical interfaces such as
CameraLink.
This article was written by Dr. Daniel
Brenner, MBA, Light & Optics Division,
JENOPTIK Optical Systems GmbH (Jena,
Germany). For more information, visit
http://info.hotims.com/79419-221.
The most trusted name in
precision laser processing.
For more than 40 years, Aerotech has set the standard
for long-term durability and accuracy in precision laser
       
       
under the rigors of 24/7 laser production.
      
    
applications than any other precision
automation company.
Visit aerotech.com/laser.
©2021 Aerotech, Inc.
Free Info at http://info.hotims.com/79419-706
9

http://info.hotims.com/79419-221 http://info.hotims.com/79419-706 http://info.hotims.com/79419-902

Tech Briefs Magazine - November 2021

Table of Contents for the Digital Edition of Tech Briefs Magazine - November 2021