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 optical communication systems Item Numerical Aperture Numerical Aperture Focal Length Distance Between Wave Length Thickness Lens Diameter Lens Barrel Lens Barrel (LD side) (SMF side) (mm) LD and SMF (mm) (nm) (mm) (mm) Thickness (mm) Diameter (mm) Part No. EYLGMFB100ER ✽ 0.47 0.097 1.138 8.50 1550 1.2 2.3 1.5 3.5 EYLGMFW135DR — 0.2 2.51 ∞ 1550 1.1 1.7 1.4 2.5 EYLGMFW192KR — 0.3 1.81 ∞ 1550 1.15 1.7 1.4 2.5 EYLGMFB193R 0.4 0.125 1.25 8.597 1310 1.22 2.3 3.9 3.75 EYLGMFB195R 0.6 — 0.7 ∞ 1310 0.81 2.0 2.0 3.6×3.2 EYLGMFB245R 0.4 0.16 1.13 7.5 1310 1.28 2.3 3.7 3.75 EYLGMFB285R 0.6 — 0.596 ∞ 1310 0.8 1.2 1.2 2.2×2.0 EYLGMFB295R 0.4 0.1 1.35 10.18 1310 1.35 2.3 3.9 3.75 EYLGMFB480A 0.4 0.2 0.93 5.73 1310 1.0 1.9 3.27 4.7 ✽ build-to-order manufacturing Dimensions in mm (not to scale) EYLGMFW135DR EYLGMFW192KR f3.5 f3.0 f2.6 f2.3 f2.5 f1.7 f2.5 f1.7 3.7 7.5 . (5.73) L2 (1.0) L1 (1.2) 2.17 3.23 f4.7 2.56 0.35 3.9 R0.1 max . 0.07 0.2 (1.27) 1.35 2.37 10.18 f1.9 .7 f3.75 C0 f2.3 Fiber Side f5.4 f5.1 f4.282 0.07 f4.3 f4.1 f3.3 MAX f1.2 max EYLGMFB480A R0.2 2.0 0.55 f2.3 f3.75 Fiber Side EYLGMFB295R 0.8 (1.27) 1.28 2.245 1.22 0.022 0.305 LD Side 3.6 0.015 0.2 LD Side f4.3 f4.1 f3.3 R0.1 LD Side f2.0 3.2 1.05 (1.27) 2.37 3.9 8.597 0.07 2.0 f0.81 EYLGMFB285R 2.2 0.2 EYLGMFB245R 2.0 LD Side 0.11 1.4 1.15 EYLGMFB195R f2.3 f3.75 1.0 1.03 f2.3 f4.3 f4.1 f3.3 0.2 0.2 f2.3 0.2 0.07 EYLGMFB193R 1.15 0.2 1.4 1.1 1.68 0.5 1.5 0.6 1.2 0.915 6.385 8.5 COVER GLASS : 0.3t 0.174 LD side 0.015 EYLGMFB100ER 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 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