1. Lens profile
Lenses can be divided into plano-convex lenses (PCX), plano-concave lenses (PCV), bi-convex lenses (DCX), bi-concave lenses (DCV), meniscus lenses, plano-convex cylindrical lenses, circular cylindrical lenses, and aspheric lenses according to their shape and function. , In the optical path of the lens, has the functions of converging light, diverging light, beam shaping, etc. Plano-convex lens (PCX)/bi-convex lens (DCX) will converge light; plano-concave lens (PCV)/bi-concave lens (DCV) will diverge light; non The spherical lens has the function of an equal doublet lens or lens group in the optical path, which can correct axial aberrations, such as spherical aberration, chromatic aberration, etc.; the achromatic lens has the function of correcting positive chromatic aberration.
2. Lens types
2.1 K9 Plano-Convex Lens
The K9 plano-convex lens will focus the light on a single point. Its characteristic is that the focal length is positive, one of which is flat and the other is convex. Commonly used for aiming and focusing of monochromatic light sources. When in use, the convex surface faces the incident light. Huasen Optoelectronics provides plano-convex lenses without coating and anti-reflection coating. Antireflection coating options include UV, VIS, NIR, and SWIR. Germanium, silicon, or zinc selenide substrates are suitable for infrared applications, fused silica is suitable for UV applications.
2.2 K9 biconvex lens
The biconvex lens will focus the light into a point with a positive focal length and consist of two convex surfaces with equal radii. Commonly used in imaging relay systems and object imaging under limited conjugate distance. The characteristic is that the greater the conjugation ratio, the greater the aberration generated. Huasen Optoelectronics provides biconvex lenses without coating and anti-reflection coating. Antireflection coating options include UV, VIS, NIR, and SWIR. Germanium, silicon, or zinc selenide substrates are suitable for infrared applications, and fused silica is suitable for ultraviolet applications.
2.3 K9 Plano-Concave Lens
Plano-concave lenses diverge the light, with a negative focal length, one of which is flat and the other is concave. Commonly used for beam expansion, projection, and enlargement of the focal length of optical systems. Huasen Optoelectronics provides plano-concave lenses without coating and anti-reflection coating. Antireflection coating options include UV, VIS, NIR, and SWIR. Germanium, silicon, or zinc selenide substrates are suitable for infrared applications, fused silica is suitable for UV applications.
2.4 K9 biconcave lens
The double-concave lens diverges the light and has a negative focal length. It is composed of two concave surfaces with equal curvature. It is often used for beam expansion, projection, and expansion of the focal length of the optical system. Huasen Optoelectronics provides biconcave lenses without coating and anti-reflection coating. Anti-reflection coating options include UV, VIS, NIR, and SWIR. Germanium, silicon, or zinc selenide substrates are suitable for infrared applications, and fused silica is suitable for ultraviolet applications.
2.5 Meniscus lens
The meniscus lens is a meniscus lens. This lens has a convex mirror surface and a concave mirror surface. If the outward arc is greater than the inward arc, the lens has a positive focal length and serves as a magnifying glass. Huasen Optoelectronics provides meniscus lenses without coating and with IR3 anti-reflection coating. Germanium (Ge) substrates are suitable for infrared applications.
2.6 Zinc Selenide Aspheric Lens
Aspheric lenses can better correct spherical aberration and chromatic aberration and are often used in barcode scanning, laser collimation, optical imaging, and other fields. The aspheric lens is designed with a single element, which helps to minimize the number of lenses in the multi-lens optical accessory. Huasen Optoelectronics provides non-coated and anti-reflection coated aspheric lenses. Anti-reflection coating options include IR1 and NIR2. The zinc selenide substrate is suitable for infrared applications.
2.7 Positive cemented achromatic lens
The achromatic lens is used for color correction, which can greatly reduce chromatic aberration and spherical aberration. Achromatic lenses are used in related fields such as optical inspection and optical imaging. Compared with a single lens, an achromatic lens can form a smaller spot. Huasen Optoelectronics provides achromatic lenses coated with a variety of anti-reflection coatings. Anti-reflection coating options include VIS, NIR, and SWIR.
2.8 Negative cemented achromatic lens
The achromatic lens is used for color correction, which can greatly reduce chromatic aberration and spherical aberration. Achromatic lenses are used in related fields such as optical inspection and optical imaging. Compared with a single lens, an achromatic lens can form a smaller spot. Huasen Optoelectronics provides achromatic lenses coated with a variety of anti-reflection coatings. Anti-reflection coating options include VIS, NIR, and SWIR.
