UV-VIS Achromatic
Over the years, we have designed many unique achromatic
lens systems and collimators to cover the UV through visible. These
designs include monochromator input collimators, imaging systems
and other specially designed systems.
Please inquire about our library of such designs.
It is possible that we have already built a system to meet a special
application. Utilizing such a design or a modification thereof may
likely avoid the expense of a new design. Below are listed some
of our standard UV–VIS Achromatic Lenses. These are corrected
for the infinite conjugate, that is optimized for focusing an infinitely
distant object, or for collimating from a point source at the focal
point.
PLEASE NOTE: Because light sources are extended,
that is of finite size, it is difficult to describe image quality
in terms of theoretical blur-circles. These are air-spaced doublets
consisting of one element of calcium fluoride with the other of
UV grade fused silica, uncoated, mounted in our standard black anodized
cell. Design details available on request.
Catalog
Number |
Clear
Aperture |
Focal
Length |
Design
Spectrum |
Cell
Dimension |
LAU-25-100 |
22 mm |
100 mm |
200 - 500 nm |
1.5" dia x .93" |
LAU-25-200 |
22 mm |
200 mm |
200 - 500 nm |
1.5" dia x .93" |
LAU-51-200 |
48 mm |
200 mm |
200 - 500 nm |
2.5" dia x 1.2" |
Visible Achromatic
Our two-element, air-spaced achromats are designed
for diffraction-limited focusing in the visible spectrum. The lenses
are mounted in a black-anodized cell. All four surfaces are anti-reflection
coated for the visible spectrum so that transmittance exceeds 96%.
These are "fast" lenses, being f/4, and designed for focusing
or collimating.
Catalog
Number |
EFL |
BFL |
CA |
Lens 1 BK7 |
Lens 2 SF11 |
Cell
Dim. |
R1 |
R2 |
Ct |
Tair |
R3 |
R4 |
Ct |
LLA-25-100-VIS |
100 |
95.08 |
22 |
57.87 |
-62.37 |
4.5 |
0.24 |
-58.07 |
-121.45 |
4.0 |
1.5"x0.5" |
LLA-51-200-VIS |
200 |
196.32 |
48 |
114.88 |
-136.75 |
9.30 |
3.00 |
-121.45 |
-269.13 |
5.80 |
2.5"x1.0" |
LLA-76-300-VIS |
300 |
280.36 |
73 |
163.06 |
-198.00 |
11.00 |
6.20 |
-172.29 |
-385.44 |
8.00 |
3.5"x1.5" |
LLA-102-400-VIS |
400 |
382.66 |
99 |
211.99 |
-282.80 |
19.00 |
5.10 |
-249.40 |
-598.00 |
6.20 |
4.5"x1.75" |
LLA-152-600-VIS |
600 |
585.60 |
149 |
353.34 |
-385.45 |
20.0 |
0.35 |
-357.19 |
-735.50 |
12.00 |
7.0"x2.0" |
Lens dimensions are in mm. Lens cell dimensions are in inches. |
Laser Collimators
Our Laser Collimator Lenses are designed
for monochromatic operation at any laser wavelength from 400
nm to 1.5 µm, and will focus within diffraction-limit
theory. These "fast" f/4 air-spaced doublets are mounted
in a black anodized cell. All surfaces are antireflection coated
so that transmittance will exceed 96% at the specified wavelength
of operation. When ordering, specify wavelength for antireflection
coatings. Other Laser Collimator Lenses are available. Please
inquire.
|
|
Catalog
Number |
EFL |
BFL |
CA |
Lens 1 BK7 |
Lens 2 BK7 |
Cell
Dim (D x L) |
R1 |
R2 |
Ct |
T |
R3 |
R4 |
Ct |
LLS-25-80-λ |
80 |
75 |
22 |
47.65 |
-90.13 |
4.80 |
0.42 |
-54.05 |
-92.43 |
3.8 |
1.5" x .95" |
LLS-51-175-λ |
175 |
168 |
47 |
103.04 |
-212.00 |
8.00 |
1.16 |
-121.45 |
-203.95 |
5.05 |
2.5" x 1.6 |
LLS-51-250-λ |
250 |
242 |
47 |
151.43 |
-313.64 |
8.50 |
2.20 |
-169.63 |
-265.14 |
6.00 |
3.5" x 1.6 |
LLS-76-300-λ |
300 |
285 |
72 |
157.04 |
-424.00 |
10.50 |
1.60 |
-223.16 |
-424.00 |
10.00 |
3.5" x 1.5 |
LLS-102-400-λ |
400 |
384 |
98 |
235.56 |
-484.25 |
17.80 |
5.80 |
-265.14 |
-430.17 |
13.00 |
4.5" x 1.85" |
LLS-152-600-λ |
600 |
575 |
147 |
328.89 |
-471.12 |
21.00 |
1.40 |
-385.45 |
-1500 |
16.30 |
7.0" x 2.0" |
Lens dimensions are in mm. Lens cell dimensions are in inches. |
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