AKB0000C15

Aspherical Glass Lenses
Aspherical Glass Lenses
Type: EYLG□□□□□□□
Lightweight, high-performance aspherical glass lenses
for various optical electronics applications.
Features
● "One
Shot" precision manufacturing process for an extremely compact, lightweight and high-performance lens
processing and measurement techniques for superior performance
● Short focal length for compact size
● High numerical aperture achieved via aspherical design
● Wide temperature and humidity range for increased reliability and stability
● Various lenses and lens material available for many different applications
● RoHS compliant
● High-quality
Recommended Applications
● Pickup
lens for optical drive devices
lens for laser beam printers
● Coupling lens for optical communication systems
● Image formation lens for sensors
● Collimator
Explanation of Part Numbers
1
2
3
4
E
Y
L
G
Product Code
EYLG
Aspherical
Glass Lenses
Lens Barrel
U without
with
M
5
6
D
L
Series
For Optical disc drives
For Laser beam printers
F
For Optical
Communication Systems
S
For Sensors
7
8
9
Anti-reflection Coating
A 1550 nm
B 1310 nm
C 1480 nm
W 1310 nm & 1550 nm
F Single Coating
M Multi Coating
N None
10
11
Design No.
Lens Design
Number
12
Additional Spec.
Special Spec.
such as Lens
Barrel etc.
Ratings
Item
Ratings
Operating Temperature Range
–30 to +85 °C
Storage Temperature Range
–40 to +100 °C
■ Please contact the factory for packaging methods.
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.
01 May. 2016
Aspherical Glass Lenses
Specifications
● For
storages, laser beam printers, sensors and other applications
Collimator Lens
Item Wave Length Numerical Focal Length Working Distance Lens Diameter Mass (Weight)
Cover Glass
Abbe Number
Part No.
(nm)
Aperture
(mm)
(mm)
(mm)
(mm)
(mg)
EYLGULF429
780
0.20
14.96
12.81
256
64
0.30
f6.80
EYLGULM368
780
0.33
10.00
8.60
f8.00
250
46
0.25
EYLGULF425
780
0.23
12.50
10.63
f6.40
306
53
0.30
EYLGULF274
780
0.40
6.25
4.60
f6.40
234
53
0.25
EYLGULF276
780
0.25
8.00
6.34
f6.40
250
53
0.25
EYLGULF277
820
0.30
9.00
7.43
f6.40
230
53
0.30
EYLGULF278
780
0.24
14.91
13.24
f8.20
247
64
0.30
EYLGULF387
830
0.40
4.60
3.04
f6.40
125
64
0.25
EYLGULF405
785
0.16
24.32
22.73
f9.50
322
64
0.30
EYLGULF406
785
0.39
10.00
8.46
f9.30
288
64
0.30
EYLGULF397
785
0.12
31.99
30.43
f9.30
318
64
0.30
EYLGULF398
785
0.18
20.99
19.47
f8.80
256
64
0.30
Dimensions in mm (not to scale)
EYLGULF425
f6.8
f6.3
f6.00 min.
f8.0
f7.0
f6.60 min.
f 6.4
f 5.3
f 5.1 min.
f6.08 min.
EYLGULF276
EYLGULF277
2.50
EYLGULF387
f8.2
f7.4
f7.18 min.
f6.4
f4.0
f3.7 min.
f2.92 min.
f3.4
f4.80 min.
f6.74 min.
f6.9
EYLGULF406
EYLGULF397
EYLGULF398
f9.3
f8.0
f7.8 min.
f8.8
f8.0
f7.50 min.
f9.3
f8.0
f7.80 min.
2.30
2.80
2.35
f7.49 min.
f7.7
EYLGULF278
2.50
2.30
2.50
f 6.4
f 6.0
f 5.43 min.
f9.5
f8.0
f7.80 min.
f4.18 min.
f4.6 min.
f4.7
f7.22 min.
f7.6
2.23
f6.4
f5.7
f4.00 min.
EYLGULF405
f6.4
f5.6
f5.00 min.
2.50
2.15
f5.30 min.
f5.6
f3.35 min.
EYLGULF274
2.88
EYLGULM368
3.37
EYLGULF429
f7.57 min.
f8.0
f7.2 min.
f7.4
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.
01 May. 2016
Aspherical Glass Lenses
Specifications
● For
storages, laser beam printers, sensors and other applications
Collimator Lens
Item Wave Length Numerical Focal Length Working Distance Lens Diameter Mass (Weight)
Cover Glass
Abbe Number
Part No.
(nm)
Aperture
(mm)
(mm)
(mm)
(mm)
(mg)
EYLGULF429
780
0.20
14.96
12.81
256
64
0.30
f6.80
EYLGULM368
780
0.33
10.00
8.60
f8.00
250
46
0.25
EYLGULF425
780
0.23
12.50
10.63
f6.40
306
53
0.30
EYLGULF274
780
0.40
6.25
4.60
f6.40
234
53
0.25
EYLGULF276
780
0.25
8.00
6.34
f6.40
250
53
0.25
EYLGULF277
820
0.30
9.00
7.43
f6.40
230
53
0.30
EYLGULF278
780
0.24
14.91
13.24
f8.20
247
64
0.30
EYLGULF387
830
0.40
4.60
3.04
f6.40
125
64
0.25
EYLGULF405
785
0.16
24.32
22.73
f9.50
322
64
0.30
EYLGULF406
785
0.39
10.00
8.46
f9.30
288
64
0.30
EYLGULF397
785
0.12
31.99
30.43
f9.30
318
64
0.30
EYLGULF398
785
0.18
20.99
19.47
f8.80
256
64
0.30
Dimensions in mm (not to scale)
EYLGULF425
f6.8
f6.3
f6.00 min.
f8.0
f7.0
f6.60 min.
f 6.4
f 5.3
f 5.1 min.
f6.08 min.
EYLGULF276
EYLGULF277
2.50
EYLGULF387
f8.2
f7.4
f7.18 min.
f6.4
f4.0
f3.7 min.
f2.92 min.
f3.4
f4.80 min.
f6.74 min.
f6.9
EYLGULF406
EYLGULF397
EYLGULF398
f9.3
f8.0
f7.8 min.
f8.8
f8.0
f7.50 min.
f9.3
f8.0
f7.80 min.
2.30
2.80
2.35
f7.49 min.
f7.7
EYLGULF278
2.50
2.30
2.50
f 6.4
f 6.0
f 5.43 min.
f9.5
f8.0
f7.80 min.
f4.18 min.
f4.6 min.
f4.7
f7.22 min.
f7.6
2.23
f6.4
f5.7
f4.00 min.
EYLGULF405
f6.4
f5.6
f5.00 min.
2.50
2.15
f5.30 min.
f5.6
f3.35 min.
EYLGULF274
2.88
EYLGULM368
3.37
EYLGULF429
f7.57 min.
f8.0
f7.2 min.
f7.4
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.
00 Dec. 2014
Aspherical Glass Lenses
NOTES
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.
Peformance of Aspherical Glass Lens
Optical Glass Diagram
100
1.95
f1 to 2 mm
1.85
85
80
75
70
65
60
55
50
45
40
35
f1 μm or less
Aspherical lens
15
1.95
1.85
VC81
1.75
ZnSF8
DC45
1.70
BaaF
KC78
1.80
SFLD60
SF6
LaF
LaSK
1.75
1.65
f1 μm or less
20
1.90
1.70
Refractive index
Spherical lens
25
LaSF
LaK
(a minimum of 3 lenses
are necessary.)
30
,
Optical glass for molding
Optical glass with
special properties ···
1.80
nd
90
Optical glass for molding
Explanation on symbols
1.90
Spherical lens
95
SF8 SF
1.65
LaF60
VC79 SSK
BaF
1.60
Bak BaLF
LLF
PBK 40
1.50
KF
K
1.45
1.55
LF
PK
1.50
1.60
F
PSK 50
PSK 11
GFK70 PSK
1.55
1.45
FK
CaFK95
1.40
100
95
90
85
80
75
70
vd
65
60
55
50
45
40
35
30
25
20
1.40
15
Abbe number
Production Process of Aspherical Glass Molded Lens
Aspherical Surface
Glass Material
Super Precision
Glass Molding
Lens
Aspherical Surface
Final Process
Coating Inspection
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.
00 Dec. 2014
Aspherical Glass Lenses
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. Before 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 equipment
where a defect in these products may cause the loss of human life or other significant damage, such as damage
to vehicles (automobile, train, vessel), traffic lights, medical equipment, aerospace equipment, electric heating
appliances, combustion/gas equipment, rotating equipment, and disaster/crime prevention equipment.
✽ 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 appliances, office equipment, information and communication
equipment)
• These products are not intended for use in the following special conditions. Before using the products, carefully
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.
<Package markings>
Package markings include the product number, quantity, and country of origin.
In principle, the country of origin should be indicated in English.
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.
00 Dec. 2014
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