[Focal length 10.8mm]

This product has a 1 rank lower surface quality than the spherical convex lens (SLB-P). ● Can be used in optical systems where high surface quality is not required, such as lighting or observation applications. Specifications other than surface quality are virtually the same as spherical convex lens (SLB-P). This lens is recommended unless you are using it for high-precision experiments using lasers. This is a bi-convex lens that refracts largely and shortens the focal length. In addition to non-coated products, we offer 3 types of lenses with anti-reflective membranes: visible range, near infrared and infrared areas. Spherical flat convex lens and spherical bifocal lens have chromatic aberration, and the focal length varies depending on the wavelength. The flat convex lens is directed for light in. Please make sure to let parallel light enter from the convex side. If reversed, the spherical aberration increases and the focal point may be larger and the image may appear blurry. No coated products are lost due to reflection on the front and back of the lens, and the transmittance is about 90%.