Aspherical Glass Lenses
Aspherical Glass Lenses
EYLG
Lightweight, high-performance aspherical glass lenses
for various optical electronics applications.
Features Recommended Applications
One Sho precision manufacturing process for an Pickup lens for optical drive devices
ex tremely compact, lightweight and high-performance Collimator lens for laser beam printers
lens Coupling lens for optical communication systems
High-quality processing and measurement techniques Image formation lens for sensors
for superior performance Imaging device for CCD, CMOS
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
Explanation of Part Numbers
12 34 56 78 9 10 11 12
EY L G
Lens Barrel Series
Anti-reflection Coating Design No. Additional Spec.
Product Code
without For Optical disc drives Special Spec.
U D A 1550 mm
Lens Design
Aspherical
EYLG such as Lens
with For Laser beam printers
Glass Lenses M L B 1310 mm Number
Barrel etc.
1480 mm
C
For Optical
F
Communication Systems
Single Coating
F
For Sensors M Multi Coating
S
For Cameras N None
C
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 speci cations are each subject to change without notice. Ask factory for the current technical speci cations before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
Feb. 2006Aspherical Glass Lenses
Speci cations
For optical disc drives
Product Group Objective Lens Collimator Lens
Part No.
EYLG EYLG EYLG EYLG EYLG EYLG EYLG EYLG EYLG
50M073 UDM120 UDM123 UDM128 UDM214 UDF282 UDM124 UDM129 UDF283
Item
Wave Length (nm) 650 650 785 650 655 660 785 650 660
Numerical Aperture 0.60 0.65 0.50 0.60 0.65 0.65 0.186 0.128 0.113
Focal Length (mm) 3.30 3.05 3.00 2.33 2.17 2.31 10.74 14.15 16.00
Working Distance (mm) 1.782 1.696 1.462 1.270 1.103 1.174 7.804 8.901 12.041
Lens Diameter (mm) f5.00 f5.00 f4.00 f3.80 f3.60 f4.00 f4.50 f4.30 f4.50
Mass (Weight) (mg) 52.0 49.4 23.0 20.3 25.1 25.3 84.0 80.6 108.5
Abbe Number 64 58 64 58 53 58 64 64 64
Cover Glass (mm) 0.6 0.6 1.2 0.6 0.6 0.6 2.25 5.85 4.21
build-to-order manufacturing
Dimensions in mm (not to scale)
EYLG50M073 EYLGUDM120 EYLGUDM123
f5.00 f5.00
f4.3 f4.00
f4.3
f3.3
f
f3.96 min.
3.97 min.
f3.00 min.
f
3.54 min.
f3.50 min.
f2.66 min.
f4.00
f
4.00 f3.00
EYLGUDM128 EYLGUDM214 EYLGUDF282
f4.00
f3.80 f3.60
f3.24
f3.064 f3.12
f3.00 min.
f2.80 min.
f2.82 min.
f2.56 min. f2.64 min.
f2.44 min.
f3.00
f2.76
f2.74
EYLGUDF283
EYLGUDM124 EYLGUDM129
f4.30
f4.50
f4.50
f3.9
f4.24
f3.8
f3.62 min.
f4.00 min. f3.60 min.
f3.36 min.
f3.61 min.
f3.334 min.
f4.00 f3.80
f3.54
Design and speci cations are each subject to change without notice. Ask factory for the current technical speci cations before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
Feb. 2006
2.45 1.20
2.05
2.50 1.70
1.20
1.40
3.00
f1.35