Plano-Concave Lens refracts parallel light and creates diverging light, which can be used for laser beam expansion. They have a negative focal length and are used to diffuse a beam of parallel light. Flat-concave lenses are spherical on one side and flat on the other.
Product Description
►Introduction of Plano-Concave Lenses
Plano-Concave Lenses are used in science and engineering applications to refract and diverge parallel light - in a laser beam expansion, for example. They feature a one-side plane, and one-side concave, curved surface. With both surfaces being either spherical or cylindrical, the Plano-Concave lens can refract and focus beams of light along the same axis, providing a collimated beam of light.
Light entering the curved, concave surface of the Plano-Concave lens is bent away from the center, creating a diverging beam of light. The highly precise curvature of the surface allows for precise control and manipulation of the light beam expansion. Depending on the size, shape and precision of the Plano-Concave lens, this beam divergence can be from several degrees to several hundredths of a degree – ideal for laser beam expansion.
The unique design of the Plano-Concave lens provides a wide range of applications. Its ability to focus and diverge light makes it ideal for use in laser beam expansions, beam splitters, imaging systems and many more. In a laser beam expansion, the Plano-Concave lens can be used as a beam expander to redirect the generated laser beam in a new direction. The beam is converged and then reduced in size, allowing the user to focus the beam on desired targets.
The advantages of a Plano-Concave lens include improved laser beam quality, uniform output power density, reduction in aberrational effects, shorter focal lengths and higher optical transmission. Its optical glass design makes it easy to operate and maintain, and its flexibility for larger beam expansions allows for a wide range of applications. Additionally, Plano-Concave lenses are made from a variety of materials including optical glass, fused silica, silicon, and more - offering increased durability and long-term optical performance.
The Plano-Concave lens is an ideal choice for those seeking an optical component for laser beam expansion. The usability and accuracy of the lens is unparalleled, and the range of available materials ensures your lens is suited to your specific application. With a wide range of sizes and shapes, it's not hard to find the perfect Plano-Concave lens for your laser beam expansion. So, find the right lens for your application and experience the benefits of quality, precision performance.
►Specification of Plano-Concave Lenses
Specifications | Standards |
Effective Focal Length (EFL) Tolerance | ±2% |
Dimensional Tolerance | Diameter: +0.000”-0.005” |
Thickness: ±0.010” | |
Edge Thickness Variation (ETV) | <= 0.002” |
Clear Aperture (polished) | 90% of diameter |
Surface Figure at 0.63µm | Plano: 1 fringe Power |
1/2 fringe Irregularity | |
Radius: varies depending upon radius | |
Scratch-Dig | 10-20 |
AR Coating Reflectivity per Surface at 10.6µm | <= 0.20% |
RZ Optics Co., Ltd. provides Spherical Lenses with commercial quality, precision quality and high precision quality.
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