Tech Briefs Magazine - March 2021 - PIT-39

Near Eye Display Measurement System

Bandpass Filters

Gamma Scientific (San Diego,
CA) is developing a new line of
the NED-LMD Near-Eye Display
Measurement System, which will
assist the user with obtaining a
158° wide field-of-view characterization of upcoming augmented
reality, virtual reality, mixed reality, and heads-up displays (AR,
VR, MR and HUDs), while also conforming to the NED metrology standards being developed by the ICDM committee of the
SID and IEC. Its small 5mm entrance pupil emulates the
human eye, while a motorized focus lens is utilized to automatically focus on the virtual image between infinity to 25 cm. It is
coupled with the GS-1290 spectroradiometer from Gamma
Scientific, which ensures high spectral precision and color
accuracy with high sensitivity and high dynamic range.

MidOpt® (Palatine, IL) has introduced the BP450 Indigo Bandpass and
the BN450 Narrow Indigo Bandpass, two
new filters designed for multi-application use. The BP450 is designed to
enhance the viewing of subjects illuminated by a 450nm blue LED. The BN450
Narrow Indigo Bandpass is suitable for
use with 3D blue laser triangulation systems used for measuring position, distance, level, displacement, proximity and profiles of objects. As with all MidOpt Bandpass filters, the BP450
and BN450 are both manufactured with MidOpt StablEDGE®
technology and are also both coated with the MidOpt BBAR
anti-reflection coating.

For Free Info Visit: http://info.hotims.com/79411-257

VCSEL Module Technology
New VCSEL module technology developed by ROHM (Kyoto,
Japan) makes it possible to modularize the VCSEL and MOSFET
elements used to drive a laser
light source into a single package. By minimizing the wiring
length between elements, the performance of each element is
maximized, resulting in a light source capable of short pulse
drive (under 10ns) that reduces susceptibility to external noise
from sunlight while enabling up to 30% higher output over
conventional solutions. As a result, when evaluating ROHM's
VCSEL module technology in spatial recognition and ranging
systems comprised of a control IC, TOF sensor (light receiving
element), and laser light source (VCSEL module), the amount
of light reflected to the TOF sensor is increased by 30% over
conventional configurations, contributing to improved accuracy in TOF systems.
For Free Info Visit: http://info.hotims.com/79411-235

High-Speed Video Measuring System

For Free Info Visit: http://info.hotims.com/79411-230

High-Performance Beam
Collimators
Optical Surfaces Ltd. (Surrey,
UK) announced a new series of
high-performance beam collimators designed for Modulation
Transfer Function (MTF) testing
of optical systems. LW-series beam collimators incorporate a
low expansion off-axis parabolic mirror, manufactured to better than lambda/10 p-v surface accuracy. The optics within the
beam collimator are secured by the use of stress-free mounts
and come pre-aligned for optimum performance. The off-axis
design of LW-series beam collimators produces no central
obscuration, thereby ensuring highly efficient transmission.
The all-reflecting design of LW-series beam collimators is
achromatic and with aluminium/magnesium fluoride coatings, can operate from the UV to the infrared without adjustment. Each system has an output port datum plane giving a
defined distance to the focus.
For Free Info Visit: http://info.hotims.com/79411-238

Optical BGA Inspection
System

The NEXIV VMZ-S3020 CNC video measuring system from Nikon Metrology, Inc. -
Americas (Brighton, MI) is suitable for
inspecting a wide variety of mechanical, electrical, electronic, molded, cast and pressed
components that fall within its 300 × 200 ×
200 mm working volume. Nikon's proprietary
optical measuring, image processing and
analysis technologies are employed to detect
feature edges at very high speed, capturing
accurately and automatically the shape and dimensions of even
the most complex components. Fast laser scanning (1,000
points/sec) can rapidly acquire the cross-sectional shape of a
surface and evaluate the relative heights, meeting the measurement needs across a wide variety of samples.

INSPECTIS AB (Solna, Sweden)
announced the launch of its new
side-view BGA inspection system,
featuring the tiniest optical probe
with built-in high-power lighting
and a 90-degree viewing angle. The Inspectis BGA system
produces high-resolution images of the extremely low-clearance areas beneath BGAs, μBGAs, CSP, CGA and FlipChip
packages with as low as 40 microns standoff. The new
INSPECTIS BGA Inspection System features a 5.0-megapixel
USB3.0 digital microscope and integrated fiber brush-light
mounted on a compact, robust stand with an XY-translation
stage. A 180-degree pivoting mechanism facilitates easy alignment of the probe along 3 different sides of the BGA
package. The BGA Inspection system is available in two system levels: Basics and ProX.

For Free Info Visit: http://info.hotims.com/79411-232

For Free Info Visit: http://info.hotims.com/79411-234

Photonics & Imaging Technology, March 2021

Cov

ToC

http://info.hotims.com/79411-230 http://info.hotims.com/79411-257 http://info.hotims.com/79411-238 http://info.hotims.com/79411-235 http://info.hotims.com/79411-232 http://info.hotims.com/79411-234

Tech Briefs Magazine - March 2021

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