DEEP SKY BLACKTM
is a low reflectivity surface treatment for optical, laser and
instrumentation applications. Equinox has developed, and continues to
refine, processes to produce optically black surfaces for stray light
control and radiator (blackbody) applications.
DEEP SKY BLACKTM
- "Photons Check in..."
- SPACE QUALIFIED
- DEEP SKY BLACK - Full
Spectrum BasicTM (DSB-FSB) has undergone
Space Qualification Testing at Sandia National Labs and performed
- Download Space Qualification test report
(zip 1.6 MB)
- DO THE TRADE-OFFS
- Maximize Optical
Performance over Largest Wavelength Range
- Maximize Mechanical
- Minimize Mechanical
- Minimize Foreign
- Minimize Post
Fabrication Process Intrusion on Opto-Mechanical
- Optimize Performance
- Reduce stray light and improve image quality in
- Detector calibration sources
- Thermal control and radiator surfaces
- Light pollution control
- Improved contrast and acuity for visuals / vision
DEEP SKY BLACKTM
is extremely absorptive over a wide range of wavelengths from ultraviolet
(UV), throught the visible, and into the
infrared (IR). The combination of surface absorptivity and mechanical
stability of the material over this range provides its unparalleled performance.
DEEP SKY BLACKTM
would typically be used in spectrometers, optical
detector assemblies, detector baffle assemblies, microscopes, camera lens
housings, calibration reference sources, medical instruments, telescopes,
scanners, and on thermal control or radiator surfaces.
Family of Products
DEEP SKY BLACK - VISTM: DSB-VIS is optimized for performance in
the visible wavelength regime.
DEEP SKY BLACK - Full Spectrum BasicTM: DSB-FSB is optimized to provide best
performance over the largest wavelength regime possible.
DEEP SKY BLACK - Full Spectrum EnhancedTM: DSB-FSE is a special variant of DSB-FSB
that has a more robust finish with the same outstanding optical
characteristics of the FSB. This product is more suited to spacecraft
applications, including those applications concerned with LEO
Specifications and Performance
Equinox Interscience, Inc. initially developed DEEP SKY BLACKTM in
an effort to improve the performance in optical instrumentation provided
to our customers within the aerospace community. The aerospace users have
had access to similar low reflectance and low scatter surface treatments
for years. The cost was typically prohibitive, making it practical for
only a select group of well-funded programs and systems.
Evolution and Development
In July of 2002, Equinox Interscience, Inc. formed an alliance with Advanced Surface
Technologies in the production of DEEP SKY BLACKTM . EI/AST operate a dedicated DSB process line within AST's
modern 30,000 sq ft,
ISO Certified facility. EI/AST have made substantial progress in
modifying and streamlining processes for manufacture of DEEP SKY BLACKTM
and as a result, has significantly reduced cost, opening the door to
those users who, in the past, would have deemed this type of surface treatment
to be desirable but unattainable for their optical system.
Innovation-Technology-Production for DEEP
Equinox Interscience, Inc. Engineering Services for DEEP SKY BLACKTM products
- we are here to help !
As a rule of thumb for any part, optical or otherwise, it is good
practice to give consideration to post fabrication processing in the
early stages of the design. This early appreciation typically results in
reduced overall cost for the part and the required tooling and packaging.
Equinox Interscience, Inc. is fully equipped to provide design guidance
for your application.
It is sometimes not possible to take in all design implications early.
Equinox Interscience, Inc. process specialists have become quite expert
in working with existing details and assemblies. Equinox Interscience,
Inc. process specialists have a wide range of knowledge on processes and
materials and sources. Should a DEEP
SKY BLACK surface not meet your need, our process
specialist will make recommendations and provide guidance in directing
you to the right process contact. Should there be no existing process
and/or material available elsewhere, we would be happy to explore
partnership options for development of a custom treatment.
Equinox Interscience, Inc. will be happy provide more current
performance data and the latest properties information upon request.
Please Call Us to Discuss Your Specific Application!
DSB Customer Information
Please complete and return this questionnaire (PDF)
or (DOC) and return to:
Equinox Interscience/Advanced Surface Technologies
Attn: Russell Mellon
PO Box 518
Pinecliffe, CO 80471-0518 USA
Guidelines regarding Application of
DEEP SKY BLACK
- DEEP SKY BLACK
works best on aluminum substrates!
- With the proper attention to tooling design and
usage, DEEP SKY BLACK fits most any geometry or part profile!
- There is no theoretical limit to size of part
treated! [ However a practical limit exists
in the size of the processing equipment used! ]
- There are physical handling considerations that
must be addressed for assembly, tooling, and packaging design!
- DEEP SKY BLACK
surfaces should not be contacted by foreign surfaces to assure best
- Equinox Interscience, Inc. has masking materials
available allowing DEEP SKY BLACK to be applied to selective
surface features! This extends the capability to utilize DEEP SKY
BLACK in combination with other treatments (e.g., black
anodize). A typical example of this approach is a lens barrel assembly
with an interior wall treated to DEEP SKY BLACK standards and
outside surfaces done in hard black anodize.
- For flight and spacecraft applications DEEP
SKY BLACK - Full Spectrum EnhancedTM
Interesting tid-bits related to system stray
- BUGS 'DO IT'
Many insects have segmented eyes. Several with many hundreds of
segments. These segments are often separated by tufts of spines and
fine short hair like protrusions which act as baffles in controlling
stray light entering a particular eye segment.
- FISH 'DO IT'
Some species of fish have a distinct red coloration in their eyes.
It's not because they're tired. Some biologists believe these fish
have the ability to pump extra blood to the eye to assist in control
of stray light entering the ocular system.
Equinox Interscience, Inc. is pleased to provide more current
performance data and the latest properties information upon request. Please
call us to discuss your specific application.
We invite you to talk with the process specialists, discuss, question,
and comment on your application needs. We are here to help!
WE ARE HAPPY TO PROVIDE
SAMPLES UPON REQUEST
A Few DEEP
SKY BLACK Customers:
AEA Technologies, United Kingdom
Cal Corp, Canada