Concave-Concave Cylindrical Lenses
from CRYSTECH, Inc.
CRYSTECH is dedicated to manufacturing high precision spherical lens for solid-state leaser systems. We have over 20 years of experience in lens manufacturing, design, and coating. We provide these lenses with the material of BK7, fused silica, sapphire, CaF2, ZnSe(ZnS) and other glass raw material. [See More]
- Lens Form: Plano-Convex; Plano-Concave; Convex-Convex; Concave-Concave
- Materials: BK7 Glass; Calcium Fluoride; Sapphire; Zinc Selenide; Ultra-violet grade Fused Silica
- Lens Application: Infrared; Visible
- Surface Flatness: λ/2 (optional feature); λ/4
from Suzhou Jiujon Optics Co., Ltd
A plano-concave lens has one flat surface and one inward curved surface, which causes light rays to diverge. These lenses are often used to correct the vision of people who are nearsighted (myopic), as they cause the light entering the eye to diverge before it reaches the lens, thus allowing it to... [See More]
- Lens Form: Plano-Concave; Concave-Concave
- Surface Quality: 40-20 Scratch / Dig
- Materials: CDGM / SCHOTT
from EKSMA OPTICS
These lenses are symmetrical with equal radii on both sides. The biconcave lenses are often used to expand light beams or to increase focal lengths in optical systems, and are normally used in combination with other lenses. Among the many devices utilising biconcave lenses are laser beam expanders,... [See More]
- Lens Form: Concave-Concave
- Center Thickness: 1.7 to 4.8
- Focal Length: 12.5 to 500
- Length: 12.7 to 25.4
from Rocky Mountain Instrument/RMI Laser
Cylindrical Lenses focus incoming light in one dimension only, such as in transforming a point image into a line image or changing the height of an image without changing its width or vice versa. RMI Cylindrical Lenses are designed per customer wavelength. Both sides can be coated with an RMI high... [See More]
- Lens Form: Plano-Convex; Plano-Concave; Convex-Convex; Concave-Concave
- Surface Quality: 10-5 Scratch / Dig; 20-10 Scratch / Dig; 40-20 Scratch / Dig
- Materials: BK7 Glass; Calcium Fluoride; Germanium; Sapphire; Zinc Selenide; Ultra-violet grade Fused Silica; Fused Silica, Cleartran, Barium fluoride, Magnesium Flouride, Silicon
- Surface Flatness: λ/4
from Intrinsic Crystal Technology Co., Ltd. (ICC)
A cylindrical lens is typically used to focus, condense or expand incoming light. A cylindrical lens has one cylindrical surface, causing light to be focused in a single dimension or axis. It can also be used to expand the output of a laser diode into a symmetrical beam. ICC supply various kinds... [See More]
- Lens Form: Plano-Convex; Plano-Concave; Convex-Convex; Concave-Concave
- Length: 1.2 to 350
- Lens Application: Infrared; Visible; Ultraviolet
- Materials: BK7 Glass; Calcium Fluoride; Ultra-violet grade Fused Silica; Silicon, Other