Eyewear, Optical Frames, Pedicure Instruments..
Eyewear, Optical Frames, Pedicure Instruments..
A trial lens set, also known as a trial lens kit or trial frame set, is a collection of lenses used by optometrists and ophthalmologists during eye examinations to determine a patient's prescription for corrective lenses, such as glasses or contact lenses. These sets typically contain a variety of lenses with different optical powers and specifications, allowing the eye care professional to conduct a comprehensive refraction test and find the most suitable prescription for the patient. Lens Types: Trial lens sets typically include spherical lenses, cylindrical lenses, and prism lenses. Spherical lenses correct for nearsightedness (myopia) or farsightedness (hyperopia), while cylindrical lenses correct for astigmatism. Prism lenses are used to correct alignment and binocular vision issues. Lens Powers: The lenses in a trial lens set come in a range of powers, usually measured in diopters (D), which indicate the strength of the lens. Positive (+) powers are used to correct hyperopia, while negative (-) powers correct myopia. Cylinder lenses also have a cylindrical power component to correct astigmatism. Lens Diameter and Thickness: Trial lenses come in various diameters and thicknesses. Thicker lenses may have higher powers or prisms, while smaller diameters are used for more precise testing. Lens Material: Trial lenses are typically made of high-quality optical glass or plastic materials that provide accurate refractive properties and durability. Mounting System: Trial lenses are often mounted in metal or plastic rims that fit into a trial frame. The trial frame allows the eye care professional to hold and position the lenses in front of the patient's eyes during the refraction test. Accessories: Some trial lens sets may include additional accessories, such as lens holders, lens cleaning tools, and a carrying case for convenient storage and transportation. During a refraction test, the eye care professional uses the trial lens set along with a phoropter or trial frame to present different lens combinations to the patient and determine the best prescription for optimal vision correction.
Clear the inventory Preferential price Number:5000pairs Date: Welcome wholesale trade retail friends contact. If you have other needs, you can contact me.
Liquidation of inventory Cheap material Quantity: 20000 price:$0.9/ Date: It is cheap and good to clear stock. The goods go fast. The need for quick contact.
This stock is from a closed down online retailer in the UK and is worth over �£200,000, were preferably looking for a bulk buyer.
Sun shades and Eye glasses available USD1.50 per pc plus VAT 15000 pcs available
Place of Origin: China Brand Name: OEM Model Number: STD2 Material: Glass Usage: Slit lamp Structure: Plano-convex Shape: Aspheric Specifications: 20D 78D 90D
Place of Origin: China Brand Name: OEM Model Number: TLS-232 Product name: Trial Lens Set TLS-232 Application: Optical Shops Material: plastic rim, aluminum case Sphere: 68 pairs Cylinder: 38 pairs Prism: 10 pieces Accessories: 10 pieces
Diameter 1mm to 1000mm Diameter Tol. +/-0.02mm Material Bk7 sapphire fused silica,ZnS2,CaF2,Si,Ge. Surface Quality 10-5 standard Flatness 1/10 lambda Parallisam
Dia.5mm to 100mm Surface quality:60-40 Flatness: 1 lambda Tolerance:+/-0.02mm.
Size:5m-200mm Surface quality:60-40 Flatness:1/4 lambda. Tolerance:+/-0.02mm
Dia.0.2mm to 500mm surface quality:20-10 flatness:1/4lambda tolerance:+/-0.01mm AR BBAR Coating.
Sunday Optics manufacture spherical lens include: plano convex lens, plano concave lens,double convex lens, double concave lens, meniscus lens, achromatic doublet lens. Material:H-K9L JGS1 Corning 7980, Sapphire, CaF2, Silicon Germanium Size:0.1-600mm+/-0.01 Surface quality:10-5 Flatness:1/10lambda Centeration.
Material:K9 glass, JGS1 glass Dia.6mm, 9mm or customized Beam diameter: customized Fan angle:2-110 degree AR BBAR Coating.
Plano-convex lenses are used to collimate diverging light or to focus collimated light. Sunday Optical Plano convex lens diameter range from 0.1mm to 600mm, Material can be optical glass, Quartz, Sapphire, CaF2,MgF2,Infrared glass such as ZnSe,CaF2,Ge,Si...
Diameters Available:2mm to 600mm Diameter Tolerance:+0.00/-0.02mm or customer design Surface Quality:10-5 Surface Irregularity:/10 @632.8nm or customer design Thickness tolerance:+0/-0.02mm Clear Aperture:>90% of Diameter Chamfer 0.05-0.5mmx45degree,according to customers needs. Centeration:3 arcmin Coating :Single Mag2, Multiple Layers AR Coating. A:350-650nm B:650-1050nm C:1050-1585nm D: Customer Design
Meniscus lenses have positive meniscus lenses and negative meniscus lenses, they are used in telescopes, camera, collimators, laser systems. Sunday offer coatings AR,Mgaf2 on broad wavelength.
Sunday Optics manufacture Si Ge ZnSe ZnS IR spherical lens Material: Silicon Si, Germanium Ge, ZnSe, ZnS, CaF2 MgF2 Size:3mm-300mm Tolerance:+/-0.02mm Surface Quality:60-40 Fringe:3(0.5) Coating: AR BBAR 2-12um, 3-5um.
Aspherical lens by polished Material: IR Silicon,Germanium Size:10mm-150mm Surface quality:60-40. PV.
