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Информация о производителе
Компания:
Jilin Tianhua Opto-electrical Technology Development Co., Ltd
 
Адрес:
Torch road 286,High Technology district, Changchun city, Jilin Province, China
 
Телефон:
+86-431-85175526

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Bi-concave lenses with both curved sides have negative focal length, and are used for image reduction and to spread light.Material: BK7 , Silica andothersFocal length tolerance:±2% ~ ±0.5%Diameter tolerance:±0.2mm ~ ±0.05mmCenter Thickness:±0.2mm ~ ±0.03mmSurface quality:60/40 ~ 10/5Surface accuracy:λ/4@633nmCentration: 3'~1'Bevelling:
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Другие товары этого производителя :
Bi-Convex Cylindrical Lenses ()
Bi-Convex Cylindrical LensesMaterial: BK7 or other optical materialsCenter Thickness:±0.2mm ~ ±0.03mmFocal Length Tolerance±2% ~ ±0.5%Surface Quality:60/40 ~ 10/5Surface Figure:λ/2 /632.8nm ~ λ/
Bi-convex lenses ()
Bi-convex lenses are used as magnifiers, objectives, condensing systems. Since both surfaces contribute to the power of biconvex lenses, they have shorter focal length than PCX lenses of equal diamete
Dove prism ()
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Equilateral Prisms ()
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filter ()
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Flat Mirrors ()
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Fresnel lenses ()
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LED prisms ()
LED prisms:The following are parameters:1.material: BK7,Fused Silica and other optical glass2. Wavelength:632.83. Focal length tolerance:±1%4. Diameter tolerance:+0.0/-0.1mm5.Centre thickness t
Meniscus lenses ()
Meniscus lenses are convex-concave lenses. They have one outward curved face and one inward-curved face. If the outward curve is sharper than the inward curve, the lens has a positive focal length and

 
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