Focusing Lens/Gradient Index Lens/Plano-Convex Lens

• After-sales Service: One Year
• Warranty: One Year
• Usage: Lighting, Medical, Optical, Photography
• Type: Convex Lens
• Material: Optical Glass
• Certification: RoHS, ISO9001, CE
• Model NO.: RAY-LH091#
• Customized: Customized
• Substrate: Schott Borofloat 33 or Equivalent
• Surface Quality: 40-20 Scratch-Dig or Custom Manufacturing
• Surface Flatness: Lambda/10 at 632.8nm with Power Removed
• Coating Type: Dielectric Coating
• Wavelength Range: 488-694 Nm/700-950nm
• Transport Package: Cartons or Wood Case
• Specification: 12.7mm/25.4mm/50.8mm or custom manufacturing
• Trademark: Raytek
• Origin: China
• HS Code: 9002909090
• Production Capacity: 100000PCS Per Year

Product Description

Product Description:Focusing lens is a gradient index lens. It has the characteristics of end face focusing and imaging, as well as its cylindrical shape, so it can be used in a variety of different micro-optical systems. There are 5 basic types of focusing lenses: namely plano-convex, positive concave-convex, aspheric, diffractive and reflective lenses. The last type of mirror is usually an off-axis parabolic mirror, but some system designers use a spherical mirror with a small angle of incidence to accomplish the same function.

For monochromatic light imaging, the image surface is a plane, and the image quality is the same on the entire image surface, and the aberration is small, and there is no vignetting. A certain deflection speed of incident light corresponds to a certain scanning speed, so linear scanning can be achieved by incident light of equal angular velocity. The deflection position of the incident beam is generally placed at the focal point in front of the object space, and the principal ray of the image square is parallel to the optical axis, which can achieve consistent image quality on-axis and off-axis to a large extent, and improve illumination uniformity, and is widely used in lasers. in the marking system.

Product category:
One way to divide the lens is to divide it according to the beam focusing method, which is to use two focusing heads of reflective and transmissive focusing optical systems.

1. The transmission lens is the easiest to use. When the laser beam passes through the lens, the lens focuses the laser beam on the workpiece in the axial direction. In most industrial laser systems, the nozzle incorporates the function of gas scrubbing, that is, a gas jet is introduced at the nozzle to help improve the performance of the interaction between the laser beam and the material, and the high-speed gas flow also acts as an isolation from the optical system. The gas jet prevents material processing contaminants from entering the nozzle and contaminating the lens surface.

2. The reflective focusing system uses an additional beam deflector and a rear focusing mirror. In this condition, there are two additional optical systems, a zinc selenide window and a beam deflector, the function of the window is to seal off the focusing system above the nozzle.

Features:
Focusing lenses have the general characteristics of ordinary optical lenses but have their own unique features. It can be used to make a lens with an ultra-short focal length, and a real image can be formed on the end face, and it is easy to obtain an upright real image of the same size as the object. The difference between the self-focusing lens and the ordinary optical lens is that its focal length and the position of the principal plane change periodically with the length of the lens.

Compared with conventional lenses with the same aperture and focal length, the focusing lens has a 2x increase in focal depth, and the focal spot size maintains a resolution similar to that of ordinary lenses throughout the entire focal depth range. The lens is simple to implement, provides a feasible approach for laser processing with large depth and high resolution, and has a good application prospect in the field of laser processing. The objective-image relationship of the focusing lens directly shows the influence of this periodic change on the imaging, and the distance: takes the end face as the reference plane, thus avoiding the trouble caused by the periodic change of the position of the main plane with the length of the lens. It is very convenient to determine the reality of the image.


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