** New ** Standard Neutral
Density Filter Offerings -- Linear and Circular ** New **
(click here for specification sheet)
WHAT
IS OPTOGRAPHICS?
Optographics is the production
of precision masters and the replication of these patterns in metallic
depositions or photographic emulsions on various substrates. At
Gurley Precision Instruments, we have taken Optographics from its infancy
to the continuously expanding state of the art that we have today. Some of
our more standardized Optographic products include:
Reticles, Resolution
Targets (including USAF & Sayce),
Gratings, Step Wedges, Optical
Rulers Field
Finders, Rapid
Comparators, Encoder Discs & Scales,
Apertures and
Grids
Lovins
Micro-Slide Field Finder and Rapid Comparator Datasheet and Pricing (.PDF
File)
General
capabilities include:
-
Precision master
generation, both linear and rotary.
-
Substrate fabrication
including shaping, drilling and grinding & polishing of glass, and
cutting and hole punching of film.
-
High vacuum deposition of
coatings.
-
Pattern replication from
prototypes to high volume on flat, curved, or odd shaped surfaces.
-
Image contrast control and
multiple image registration.
-
Assembly, including
bonding of encoder discs to hubs and reticle, or scale mounting in
holders.
- Inspection to MIL-I-45208
specifications.
 |
Patterns vary from simple cross hairs
and standard resolution targets to sophisticated sighting reticles and
registration patterns for commercial, military or aerospace
applications.
Other than chrome, we vacuum
deposit many other metals for reproducing patterns including nichrome,
aluminum, silver, copper, inconel, titanium and gold.
|
Substrate material is quite varied
due to transmission requirements, coefficient of expansion, and other
exotic demands. Besides soda-lime float glass, we
use borosilicate crown glass, quartz, fused silica, zinc sulfide, zinc
selenide, calcium fluoride, germanium, lithium niobate and sapphire to
name a few.
Our vacuum coating area can apply
special coatings such as magnesium fluoride, silicon monoxide, cerium
fluoride and zinc sulfide for their anti-reflective properties, or for
their ability to protect less durable coatings like aluminum, silver
and gold.
Our years of experience and
creative engineering staff give us the ability to tackle your most
challenging optographic problems with a degree of success unequaled in
the industry.
Your
Disc and Scale Assembly Specialists
The quality, performance, and
most importantly cost, of our discs and scales can help make your products
more competitive. We currently supply these products to several
international companies, including the semiconductor and instrumentation
manufacturing industries.
Some of the benefits we can
provide include:
General Technical
Specification for Gurley Discs and Scales:
| SPECIFICATION |
DISCS |
SCALES |
| Material |
Float Glass |
Float Glass |
| Maximum Diameter/Length, mm |
up to 315 |
up to 3200 |
| Thickness of substrate, mm |
1-6 |
1-6 |
| Coating |
Vacuum Deposited
Chrome
|
Vacuum
Deposited
Chrome |
| Transmission at 400-900 nm, % |
<3 |
<3 |
| Reflection at 400-900 nm, % |
>60 |
>60 |
| Minimum line pitch, µm |
8 |
8 |
| Minimum line width, µm |
4 |
4 |
| Shape of line |
Trapezium or Rectangular |
Rectangular |
| Accuracy: Angular/Linear |
up to ± 1 arcsec |
up to ± 1 micron/per
250 mm
|
|
Number and position of reference
marks
|
Per customers specs |
Per customer specs |
Other technical characteristics are
available. Please contact us for more information. |