Fresnel Spiral Lens/Fresnel Lens/Spiral Lens/Laser Spiral Lens/IR Spiral Lens

Product Description

General Introduction: The function of Raytek spiral lens is equivalent to the spotlight in the slide. On the one hand, it can focus the light, on the other hand, it can make the light evenly shine on the projector. Compared with the flat convex lens, the spiral lens has the characteristics of thin thickness, light weight, good light transmission and easy processing. It is usually made of polypropylene or optical glass.
Fresnel Spiral lens has a plane on one side and a series of concentric grooves on the other side instead of the curved surface of the traditional lens to form a thin and light plastic plate. Each band is equivalent to an independent refraction surface. The cross section is like many small prisms, which can make the incident light converge to a common focus. Fresnel lens (Fresnel spiral lens), simply speaking, has equidistant teeth on one side of the lens. Through these teeth, it can achieve the function of light band-pass (reflection or refraction) in the specified spectral range. The traditional band-pass optical filter for polishing optical equipment is expensive. Fresnel lens can greatly reduce the cost.

Products Name: Fresnel Spiral Lens/Fresnel Lens/Spiral Lens/Laser Spiral Lens/IR Spiral Lens
Alias:Infrared spiral lens, IR spiral lens, Laser spiral lens, Fresnel lens, Soft light spiral lens, photography light spiral lens, Projector spiral lens, etc

Main Applying:

Applying 1	Laser systems
Applying 2	Infrared systems and infrared detectors and alarming system
Applying 3	Photovoltaic cells system
Applying 4	Navigation lighting system

Main Highlights:
1).Compared with most optical components, the cost is low
2). Easy to process in large area
3). Thin and light in thickness
4). Easy to carry
5). Low cost.
6).Commonly used in human infrared detection and solar focusing in photovoltaic cells(Plane incidence, plane output). Because of its concentric thread structure, the focus of each thread is the same, so it has been playing an outstanding role in the field of large area spotlight.
7).Corresponding to the focusing effect, the Fresnel lens is also commonly used to collimate the beam. As long as the point light source is placed at its focus, the objective quasi light output can be obtained( On the contrary, Fresnel lens can also emit the incident point light into the plane light.
8).Another common function of the screw lens is for magnification - magnifying glass or projection lens, etc

Main Technical Data:

Technical Data	Description & Value
Substrate	Optical glass PMMA Borosilicate glass
Size Tolerance	+/-0.1mm
Central Thickness Tolerance	+/-0.1mm
Popular Standard Size	5-500mm, or customize as per demand
Surface Finish	60-40 scratch-dig
Effective Aperture	More than 90%
Coating	Uncoating/VVis, NIR, IR, UV coating

The listed prices are only for reference. The final price is up to the substrate type, substrate grade, product size, suface finish, surface quality and Physical & Optical request standards.

Main Cooperation Materials Manufacturers: 
CORNING, OHARA, SCHOTT, LEONI, AGC,HELLMA, NIKON,VITRON,C-LASER,J-FIBER,ETC

Main Export Countries & Areas: 
Usa, Uk, Japan, Germany, Spain, France, Swiss, Korea, Russia, Pakistan, India, Portugal, Canada, New Zealand, Australia, Saudi Arab, Turkey, Finland, Poland ,etc.

Raytekoptics Extra value added services offered:
1). Optical workcraft & process solution design;
2). Rough processing raw materials;
3). Semi finishing raw materials;
4). Fabricate custom sizes and shapes;
5). Design and supply custom coatings;
6). Modify and resurface customer supplied materials;
7). Drill holes, notch glass and provide beveled substrates;
8). Precision polish optics with non-standard aspect ratios;

Payment Method: by T/T or Western Union.
Delivery time: 7-10 days.
Quality Warranty: Ruitaiphotoelectric(Raytekoptics) offers quality warranty for our optics products with "3R" policy. For any inferior-quality products, Ruitaiphotoelectric(Raytekoptics) is responsible for return, replacement and refund.