M9x0.5 mm threaded housing , single glass lens design . This single element lens gives around 15-20% increase in output compared with the 3-element lenses with a reduction in beam quality.
Specifications:
Lens Material : Single element ; Coated optical glass
Lens Holder : 9mm x 0.5mm thread , 8mm length , brass
EFL ( Effective Focal Length): 3.77mm
CA (Clear Aperture) : 2.4mm
NA (Numerial Aperture) : 0.33mm
SD (Diode to lens) : 2.9m
Coating :630-680nm
An Aspheric Lens or asphere is a lens whose surface profiles are not portions of a sphere or cylinder. In photography, a lens assembly that includes an aspheric element is often called an aspherical lens.
The asphere's more complex surface profile can reduce or eliminate spherical aberration and also reduce other optical aberrations such as astigmatism, compared to a simple lens. A single aspheric lens can often replace a much more complex multi-lens system. The resulting device is smaller and lighter, and sometimes cheaper than the multi-lens design. Aspheric elements are used in the design of multi-element wide-angle and fast normal lenses to reduce aberrations. They are also used in combination with reflective elements (catadioptric systems) such as the aspherical Schmidt corrector plate used in the Schmidt cameras and the Schmidt–Cassegrain telescopes. Small molded aspheres are often used for collimating diode lasers.
Realpoo Optics is a professional manufacturer of optical glass lenses, such as Spherical Lens, Glass Rod, Fresnel Lens, Holographic Grating etc. The optics can be offered with coating or without coating. Welcome to send your inquiry.
Contact Now
