BK7 Glass Meniscus Lenses
from CASTECH, Inc.
Other sizes and focal length are available upon request. Also the lens ring mounts are available upon request. [See More]
- Materials: BK7 Glass
- Surface Quality: 40-20 Scratch / Dig
- Diameter / Length: 25.4
- Surface Flatness: λ/4
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]
- Materials: BK7 Glass; Calcium Fluoride; Sapphire; Zinc Selenide; Ultra-violet grade Fused Silica
- Surface Flatness: λ/2 (optional feature); λ/4
- Lens Application: Infrared; Visible
- Lens Features: Mounted (optional feature)
from Gurley Precision Instruments
Used to change the focal length of another lens, The lens shape does not intriduce more spherical aberrations to the system [See More]
- Materials: BK7 Glass
- Edge Thickness: 1.4
- Center Thickness: 4
- Focal Length: 50
from CASTECH, Inc.
Other sizes and focal length are available upon request. Also the lens ring mounts are available upon request. [See More]
- Materials: BK7 Glass
- Surface Quality: 40-20 Scratch / Dig
- Diameter / Length: 25.4
- 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]
- Materials: BK7 Glass; Calcium Fluoride; Ultra-violet grade Fused Silica; Silicon, Other
- Diameter / Length: 1.2 to 350
- Lens Application: Infrared; Visible; Ultraviolet
from HG Optronics, Inc.
The Positive Meniscus Lenses are a convex-concave lens, but it is thicker at the center than at the edges. They are felt polished and are used universally in the ophthalmic industry where convention dictates that lens power be specified in Diopters. The Negative Meniscus Lenses are a convex-concave... [See More]
- Materials: BK7 Glass; Calcium Fluoride; Germanium; Ultra-violet grade Fused Silica; Optical glass, BK7,H-K9L, Fused Silica, CDGM,Schott, OHARA, YAG CaF2,Germanium etc.
- Center Thickness: 3 to 4
- Lens Application: Infrared
- Edge Thickness: 2.5 to 4.5
from Foctek Photonics, Inc.
FOCtek provides five kinds of spheric lens forms, or shapes, that determine the imaging Characteristics. of the lenses, they are plano-convex, plano-concave, Double-convex, Double-concave and Meniscus. Plano-convex lens has a positive focal length, which makes it ideal for collecting and focusing... [See More]
- Materials: BK7 Glass; Calcium Fluoride; Sapphire; H-K9, Fused Silica, N-SF10, Silicon
- Surface Flatness: λ/4; <1.5?
- Surface Quality: 10-5 Scratch / Dig; 60-40 Scratch / Dig
- Lens Features: Antireflection Coating (optional feature)
from Intrinsic Crystal Technology Co., Ltd. (ICC)
ICC spherical technology includes PITECH, high speed and CNC method, which can meet the requirements of small quantity for precision control, and large quantity for cost. All processes are completed in the factory. Our spherical lenses are widely used in a variety of industrial and detection camera,... [See More]
- Materials: BK7 Glass; Calcium Fluoride; Germanium; Zinc Selenide; BAF2, Silicon
- Lens Application: Infrared; Visible