Calcium Fluoride plano-convex lens,plano-convex lens,plano convex lens focal length,plano convex lens ray diagram
Our company can produce many kinds of flat convex Spherical Mirrors with different sizes, radii and base materials, flat convex spherical Mirrors, flat concave spherical mirrors, double convex spherical mirrors, double concave spherical mirrors, meniscus spherical mirrors and other ordinary spherical mirrors. Special spherical mirror can also be processed, such as: achromatic spherical mirror, aspheric surface and spherical mirror group.
Calcium Fluoride Plano-convex Lenses Calcium Fluoride Plano-Convex Lenses,Achromatic Lense,Achromatic Lenses,Optical Lens High Definition Gold Dragon Optics Electronic Technology CO.,Ltd , https://www.golddragon-optics.com
High precision, High challenge, High quality
Neodymium Magnet is a member of the Rare Earth magnet family, and the most permanent magnet in the world. It is composed of Neodymium (ND), Iron (Fe) and Boron (B), which makes them vulnerable to rust if they're exposed to the elements. To protect the magnet from corrosion and to strengthen the brittle magnet material, the magnet is usually coated with nickel.
NdFeB magnets Making process:
NdFeB magnet use Powder Metallurgy Process, proportion of material such as: Neodymium, dysprosium, iron, cobalt, niobium, praseodymium, aluminum, iron, and boron etc., through Mid-frequency Induction Furnace smelting to alloy steel ingot, then broken into power of 3~5um, and forming mold in magnetic field, the green bodies sintering dense and tempering in Vacuum Sintering Furnace, that can earn magnetic properties of blank of permanent magnet. After grinding, drilling, cutting and other processing, last via surface finish, it is good NdFeB magnet.
Temperature Characteristics:
Low grade Neodymium magnet may lose strength if heated above 80° C. High grade Neo magnets have been developed to function at temperatures up to 220° C with little irreversible loss.
Grade: N35-N52, 35M-52M, 33H-50H, 33SH-45SH, 30UH-42UH, 30EH-38EH, and 28AH-33AHB.
Coating: Ni, Zn, gold, copper, epoxy, chemical, parylene etc.
Shape: Arc, segment, disc, cylinder, sphere, block, ring, tile, and ect.
Magnetization orientation: Through thickness, axially, radially, multipole, diameter.
NdFeB magnets applied range:
Acoustic: Loudhailer, receiver, microphone, annunciator, sound stage, car audio etc.
Electronics: Watt-hour meter, water meter, noise meter, transducer etc,
Motor: VCM, CDDVD-ROM, dynamo, electromotor, servo motor, Pilot motors, motor, vibrator motor.
Machinery and equipment: Magnetic separator, magnetic hanging.
Materials: optical glasses such as flint glass, ultraviolet fused quartz and infrared fused quartz, as well as optical crystal materials such as calcium fluoride (CaF2), germanium (Ge), Zinc selenide (ZnSe) and silicon (Si)
Focal length: ±5mm -- ±1000mm±1%
(Germany TIROPTICS OPTOMATIC2000 test)
Outer circle: 4mm -- 200mm±0.1mm
Center thickness tolerance: ±0.1mm
Center deviation: 3-5 points
Surface accuracy: /2@
Surface quality: 40/20
Effective diameter: 90%
Plating film: according to customer requirements can be coated
In addition, we have more than a thousand kinds of standard products, and some of the standard products in stock to meet your needs
Permanent Magnet with Adhesive
HS Code: 85051110
Permanent NdFeB Magnet