Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
Aspherical Glass Lenses
EYLG F
123456789101112
EYLG U
MFA
B
W
N
Lens Barrel
without
with
Series
For optical
communication systems
Product Code
Aspherical
Glass Lenses
Design No.
Lens Design
Number
Multi for 1550 nm
Multi for 1310 nm
Wide for
Optical communicasions
None
Anti-reflection Coating
Special Spec.
such as Lens
Barrel etc.
Additional Spec.
Aspherical Glass Lenses
For optical communications
Type: EYLG□F□□□□□
Features
Recommended Applications
● High numerical aperture achieved via aspherical design
● Short focal length for compact size
● Appropriate lenses and lens material available for many different applications
● Wide temperature and humidity range for increased reliability and stability
● High-quality processing,measurement techniques and precision manufacturing process
give less variation in optical properties
● RoHS compliant
✽ We can offer custam design,sampling and mass production as requested
● Coupling lens for optical communication systems
● Collimator lens for optical communication systems
These products are aspherical glass lenses by using a
press molding,
and key devices of optical electronics not only provide
compact and light weight but also high-performance
by utilizing characteristics of aspherical design.
Item Ratings
Operating Temperature Range –30 to +85 °C
Storage Temperature Range –40 to +100 °C
Explanation of Part Numbers
Ratings
■ Please contact the factory for packaging methods.
Feb. 201904
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
Aspherical Glass Lenses
Speci cations
● Lenses for Optical Communications
Part No.
Design
Wavelength
(nm)
Suitable
Wavelength
(T>97 %)
(nm)
Designed with
CG Focal
Length
(mm)
Working
Distance
(✽ L1)
(mm)
Conjugate
Distance
(✽ L2)
(mm)
Magnifi cation
CG material /
Thickness (mm)
EYLGMFW135DR
1550 1260 to 1625 – 2.51 1.68 – –
EYLGMFW192KR
1550 1260 to 1625 – 1.81 1.03 – –
EYLGMFW192WR
1550 1260 to 1625 – 1.81 0.81 – –
EYLGMFA265AR
1550 1260 to 1625 – 3.02 2.26 – –
EYLGMFW479A
1550 1260 to 1625 – 1.59 0.93 – –
EYLGMFB240BR
1310 1260 to 1625 – 1.40 1.13 10.69 5.0
EYLGMFB456R
1310 1260 to 1625 – 0.54 0.25 3.85 4.5
EYLGUFB508A
1310 1260 to 1625 – 0.55 0.25 3.98 5.3
EYLGUFB506A
1310 1260 to 1625 – 0.63 0.52 4.00 4.0
EYLGMFB245R
1310 1260 to 1625 BK7 t0.25 1.13 1.27✽ 7.50✽2.5
EYLGMFB295R
1310 1260 to 1625 – 1.35 1.27✽10.18✽4.0
EYLGMFB415R
1310 1260 to 1625 – 0.94 1.27✽ 7.56✽4.0
EYLGMFB480A
1310 1260 to 1625 – 0.93 1.20✽5.73✽2.0
EYLGMFB305R
1310 1260 to 1625 – 0.46 1.40✽3.90✽3.1
EYLGMFB502B
1310 1260 to 1625 – 0.46 1.00✽3.50✽3.1
EYLGMFB488A
1577 1260 to 1625 – 1.44 2.62✽12.02✽3.8
EYLGMFB463R
1570 1260 to 1625 – 1.48 2.15✽12.10✽4.2
EYLGMFB485A
1577 1260 to 1625 – 0.95 2.8✽8.20✽3.1
Part No.
N.A Effective Diameter
(mm) Beam
Diameter
(mm)
Dimensions (mm) Glass
Material
Lens
Shape
type
S1 S2 S1 S2 Diameter
(D)
Height
(H)
Thickness
(T)
EYLGMFW135DR
– 0.20 1.04 0.80 0.50 2.5 1.4 - K-PBK40 A-1
EYLGMFW192KR
– 0.30 1.08 0.82 0.34 2.5 1.4 - K-PBK40 A-1
EYLGMFW192WR
– 0.30 1.08 0.73 0.36 3.0 1.6 - K-PBK40 A-1
EYLGMFA265AR
– 0.22 1.33 1.14 0.60 3.0 1.6 - K-PBK40 A-1
EYLGMFW479A
– 0.26 0.82 0.70 0.26 1.8 1.4 - K-PBK40 A-1
EYLGMFB240BR
0.50 0.10 1.31 1.70 - 3.0 1.5 - K-VC89 A-2
EYLGMFB456R
0.50 0.11 0.34 0.64 - 1.8 1.0 - K-VC89 A-2
EYLGUFB508A
0.58 0.11 0.40 0.70 - 1.0 - 0.81 K-VC79 D
EYLGUFB506A
0.48 0.12 0.59 0.76 - 1.0 - 0.63 K-VC89 D
EYLGMFB245R
0.40 0.16 0.90 1.20 - 3.75 3.97 - K-VC89 B
EYLGMFB295R
0.40 0.10 1.02 1.33 - 3.75 3.90 - K-VC89 B
EYLGMFB415R
0.50 0.13 0.76 1.14 - 3.75 3.50 - K-VC89 B
EYLGMFB480A
0.40 0.20 0.91 1.10 - 4.70 3.23 - K-VC89 B
EYLGMFB305R
0.50 0.16 0.34 0.52 - 3.20 2.45 - K-VC89 B
EYLGMFB502B
0.50 0.16 0.34 0.52 - 3.23 2.10 - K-VC89 B
EYLGMFB488A
0.60 0.16 1.40 2.20 - 5.00 5.90 - K-VC89 B
EYLGMFB463R
0.59 0.14 1.60 2.12 - 5.00 4.93 - K-VC89 B
EYLGMFB485A
0.53 0.17 1.00 1.30 - 4.90 5.00 - K-VC89 B
Feb. 201904
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
Aspherical Glass Lenses
H
D
W. D
W
W. D
H
D
C. D
T
W. D
D
L1
H
L2
D
H
D
W. D
C. D
A-1
With Holder type
A-2
With Holder type
B
CAN type
C
With Holder type
D
Bare type
W.D : Working Distance
C.D : Coujugate Distance
Dimensions in mm (not to scale)
Feb. 201904
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
Aspherical Glass Lenses
EYLGUL
12345678910
EYLG U L F
M
N
Lens Barrel
without
Series
For LD applications
Product Code
Aspherical
Glass Lenses
Design No.
Lens Design
Number
Single for 700 nm
Multi for 700 nm
None
Anti-reflection Coating
Aspherical Glass Lenses
For LD applications
Type: EYLGUL□□□□□
Features
Recommended Applications
● High numerical aperture achieved via aspherical design
● Short focal length for compact size
● Appropriate lenses and lens material available for many different applications
● Wide temperature and humidity range for increased reliability and stability
● High-quality processing,measurement techniques and precision manufacturing process
give less variation in optical properties
● RoHS compliant
✽ We can offer custam design,sampling and mass production as requested
● Lens for LD applications
These products are aspherical glass lenses by using a
press molding,
and key devices of optical electronics not only provide
compact and light weight but also high-performance
by utilizing characteristics of aspherical design.
Item Ratings
Operating Temperature Range –30 to +85 °C
Storage Temperature Range –40 to +100 °C
Explanation of Part Numbers
Ratings
■ Please contact the factory for packaging methods.
Feb. 201904
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
Aspherical Glass Lenses
C. D
T
W. D
D
● Lenses for LD applications
Part No.
Design
Wavelength
(nm)
Suitable
Wavelength
(T>97 %)
(nm)
Designed with
CG Focal Length
(mm)
Working
Distance
(mm)
Magnifi cation
CG material /
Thickness (mm)
EYLGULM216 780 600 to 800 BK7 t0.25 10.00 8.85 ∞
EYLGULF273 780 660 to 700 BK7 t0.30 12.50 10.93 ∞
EYLGULF274 780 660 to 700 BK7 t0.25 6.25 4.84 ∞
EYLGULF276 780 660 to 700 BK7 t0.25 8.00 6.60 ∞
EYLGULF277 780 660 to 700 BK7 t0.30 8.98 7.72 ∞
EYLGULF279 780 660 to 700 BK7 t0.30 4.00 2.66 ∞
EYLGULF292 780 660 to 700
(T > 95 % ) BK7 t0.27 6.00 3.82 ∞
EYLGULF319 780 660 to 700
(T > 95 % ) BK7 t0.25 12.50 11.12 ∞
EYLGULM330 780 630 to 800 BK7 t0.25 3.59 2.55 ∞
Part No.
N.A Effective Diameter (mm) Dimensions (mm) Glass
Material
Lens Shape
type
S1 S1 S2 Diameter
(D)
Thickness
(T)
EYLGULM216 0.33 6.06 6.60 8.00 2.15 K-VC81 D
EYLGULF273 0.23 5.07 5.70 6.40 2.80 K-VC80 D
EYLGULF274 0.40 4.15 5.00 6.40 2.50 K-VC80 D
EYLGULF276 0.25 3.36 4.00 6.40 2.50 K-VC80 D
EYLGULF277 0.29 4.79 5.40 6.40 2.30 K-VC80 D
EYLGULF279 0.50 2.96 4.00 6.40 2.50 K-VC80 D
EYLGULF292 0.35 2.85 4.20 6.00 4.20 K-PBK40 D
EYLGULF319 0.23 5.20 5.70 8.00 2.50 K-PBK40 D
EYLGULM330 0.29 1.58 2.16 4.00 2.00 K-PBK40 D
Spci cations
D
Bare type
W.D : Working Distance
C.D : Coujugate Distance
Dimensions in mm (not to scale)
Feb. 201904
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
Aspherical Glass Lenses
Optical Glass Diagram
Spherical lens
Aspherical lens
Spherical lens
(a minimum of 3 lenses
are necessary.)
f1 to 2 mm
f1 µm or less
f1 m or less
FK
K
Bak BaLF
BaF
SSK
VC79
LaF60
KF
LLF
LF
F
PK
GFK70
CaFK95
VC81
LaF
BaaF
LaSF
SF8 SF
SF6
SFLD60
ZnSF8
DC45
KC78
LaK
LaSK
PBK 40
PSK 11
nd
Optical glass for molding
Explanation on symbols
Optical glass for molding
Optical glass with
special properties ···
Refractive index
1.95
1.90
1.85
1.80
1.75
1.70
1.65
1.60
1.55
1.50
1.45
1.40
1.95
1.90
1.85
1.80
1.75
1.70
1.65
1.60
1.55
1.50
1.45
1.40
100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15
100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15
vd Abbe number
PSK
PSK 50
,
Final Process
Coating Inspection
Glass Material
Aspherical Surface
Super Precision
Glass Molding Lens
Aspherical Surface
1) Formation of the lens barrel
Since the lenses with barrels for optical communications are integral-molded with the barrels, no further processing is
possible after the assembly. Please note that if the thickness of a lens barrel is 0.25 mm or less, the barrel tends
to expand during assembly. The lenses are designed on the assumption that the barrel is in a simple or a
two-step cylindrical shape.
2) Anti-reflective coating
a) Panasonic uses only the best glass materials and applies an anti-reflective coating to achieve the highest
possible performance.
b) Average center wavelength of a lens’ transmittance band is either 1310 or 1550 nm for optical communications.
Wide wavelength (1310 to 1550 nm) and dual wavelength (980/1550) designs are available as well. Custom
anti-reflective coatings are available upon request. Wide wavelength designs become increasingly prohibitive as
the length of lens barrel increases.
3) Custom Specification lenses
Lenses of various shapes and dimensions can be designed to meet the individual needs of customers. Please
consult with Panasonic for details.
NOTES
Peformance of Aspherical Glass Lens
Production Process of Aspherical Glass Molded Lens
Dec. 201400
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
Aspherical Glass Lenses
<Package markings>
Package markings include the product number, quantity, and country of origin.
In principle, the country of origin should be indicated in English.
Safety Precautions
(Common precautions for Aspherical Glass Lenses)
• When using our products, no matter what sort of equipment they might be used for, be sure to make a written
agreement on the specifications with us in advance. The design and specifications in this catalog are subject
to change without prior notice.
• Do not use the products beyond the specifications described in this catalog.
• This catalog explains the quality and performance of the products as individual components. Be fore use, check
and evaluate their operations when installed in your products.
• Install the following systems for a failsafe design to ensure safety if these products are to be used in equip ment
where a defect in these products may cause the loss of human life or other significant damage, such as damage
to vehicles (au to mo bile, train, vessel), traffic lights, medical equipment, aerospace equipment, elec tric heating
ap pli anc es, com bus tion/gas equipment, rotating equipment, and disaster/crime prevention equip ment.
✽ Systems equipped with a protection circuit and a protection device
✽ Systems equipped with a redundant circuit or other system to prevent an unsafe status in the event of a single fault
1) Precautions for use
• These products are designed and manufactured for general and stan dard use in general elec tron ic
equipment (e.g. AV equipment, home electric ap pli anc es, office equipment, information and com mu ni ca tion
equipment)
• These products are not intended for use in the following special conditions. Be fore using the products, care ful ly
check the effects on their quality and performance, and determine whether or not they can be used.
1. In liquid, such as water, oil, chemicals, or organic solvent
2. In direct sunlight, outdoors, or in dust
3. In salty air or air with a high concentration of corrosive gas, such as Cl2, H2S, NH3, SO2, or NO2
4. In an environment where these products cause dew condensation
• Carefully position these products so that their temperatures will not exceed the category temperature range due to
the effects of neighboring heat-generating components.
• Dust or dirt on the surface of a lens should be removed using compressed air, or by blowing air across the lens
surface.
If dust/dirt remains, wipe the lens lightly with a swab soaked in ethanol. Note that the performance or appearance
of lenses will be affected if their surfaces are scratched as a result of being rubbed strongly.
Do not cleanse lenses with water, doing so could also influence their performance or make the surfaces dull.
• Do not directly touch the surfaces of lenses when taking them out from trays. Hold the flange or lens barrel instead.
• Always use plastic tweezers when handling lenses.
2) Precautions for storage
• Always store lenses in desiccators.
• Avoid storage under conditions of high temperature and high humidity.
Dec. 201400
