• Fresnel Lens for Stage Lighting
  • Fresnel Lens for Stage Lighting
  • Fresnel Lens for Stage Lighting
  • Fresnel Lens for Stage Lighting
  • Fresnel Lens for Stage Lighting

Fresnel Lens for Stage Lighting

Usage: Lighting
Type: Flat Lens
Transmittance: 90%-95%
Shape: Laminated Lenses
Material: PMMA
Lenses Color: Clear
Customization:

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Ms. Cindy Wangwang
Sales Manager
Gold Member Since 2016

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Trading Company

Basic Info.

Model NO.
HW-165185
Certification
RoHS, CE
Customized
Customized
Coating
UV
Color
Transparent
Diameter
250mm
Thickness
2mm
Groove Pitch
0.5mm
Focal Length
200mm
Transport Package
One Piece One Carton
Specification
CE, RoHs
Trademark
Haiwang(HW)
Origin
Guangdong, China
Production Capacity
1000 Pieces Per Week

Product Description

Fresnel Lens for Stage Lighting
Fresnel Lens for Stage Lighting

1. Material: borosilicate / pyrex glass / thermal endurable glass.
2. Size: diameter 130mm.
3. usage: Used for stage lighting etc.
4. Size and shape can be customized.
We have size of dia. 50mm, 80mm, 110mm, 112mm, 120mm, 130mm, 150mm, 175mm, 200mm, 250mm and 300mm available.

Regarding the packing and deliver terms please find the below information:

1. MOQ: 500pcs
2. Delivery time: 20 days after order confirmation
3. Payment terms: T/T, if by sea, please arrange the 30% deposit before production, the rest 70% against copy of BL; If by air or express, please arrange 100% before production.
4. Packaging: white paper + 5-layer standard export carton + fumigation-free pallet


Fresnel lens  Sketch :
It is a type of lens originally developed by French physicist Augustin-Jean Fresnel for lighthouses.The design of Fresnel lens enables the construction of lenses of large aperture and short focal length without the weight and volume of material that would be required in conventional lens design. Compared to conventional bulky lenses, the Fresnel lens is much thinner, larger, and flatter, capturing more oblique light from a light source.
Details:Compared to conventional bulky lenses, the Fresnel lens reduces the amount of material required compared to a conventional spherical lens by breaking the lens into a set of concentric annular sections known as "Fresnel zones", which are theoretically limitless. In the first variations of the lens, each zone was actually a different prism.

Though a Fresnel lens might look like a single piece of glass, closer examination reveals that it is many small pieces. For each of these zones, the overall thickness of the lens is decreased, effectively chopping the continuous surface of a standard lens into a set of surfaces of the same curvature, with discontinuities in steps between them.

In fact this product can be regarded as an array of prisms positioned in a circular fashion, with steeper prisms on the edges and a near flat convex center. Fresnel lenses are usually made of glass or plastic; their size varies from small to large. Since plastic lenses can be made larger than glass lenses, as well as being much cheaper and lighter, they are used to concentrate sunlight in multiple uses.
Material:3.3 borosilicate glass,a kind of optical glass.It has resistance to high temperature and high pressure.borosilicate also has good chemical stability.
optical property of borosilicate glass

Si%
over 80%
deform temp 520ºC
annealing temp 560ºC
melt temp 820ºC
refractive index 1.47
luminousness(2mm thickness) 92%
elasticity modulus 76KNmm-2
tensile strength 40-120Nmm-2
processing temp 1220ºC
coefficient of linear expansion(20-300ºC) 3.3*10-5K-1
density(20ºC) 2.23gcm-1
specific heat capacity 0.9jg-1K-1
thermal conductivity 1.2Wm-1K-1
water resistance level1




 

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Contact Supplier

Ms. Cindy Wangwang
Sales Manager
Gold Member Since 2016

Suppliers with verified business licenses

Trading Company
Number of Employees
17
Year of Establishment
2004-08-19