what are concave lenses

Brand Name:FLYIN/OEM/COSTA

Model Number:short throw lens

Place of Origin:China

Optical Ultra Short Throw Lens Throw Ratio Double Concave Lenses Product Overview High-performance optical ultra short throw lens featuring double concave lenses designed for wide-angle digital projectors. Compatible with most models available in the ...

Place of Origin:Shanghai, China

Brand Name:Advance

Model Number:001

...Concave Glass Nova Display Fiber Uncoated Plano-concave Lenses Custom Meniscus Lens The Focal Length Concave Glass Nova Display Fiber Uncoated Plano-concave Lenses Custom Meniscus Lens is a precision optical component engineered for high-performance light control in display, fiber optic, and imaging systems. Designed with careful consideration of focal length and curvature, this lens family includes plano-concave...

Brand Name:Wuhan Siwer Optics

Place of Origin:Wuhan,China

...Concave Lens Plano-Concave Lenses are ideal for beam expansion, light projection, or for expanding an optical system’s focal length. Plano-Concave Lenses, which have one concave surface, are Optical Lenses with negative focal lengths. PCV Lenses should be oriented with the plano, or flat, surface towards the desired focal plane. PCV Lenses...

Brand Name:STAR OPTIC

Model Number:DCV

Place of Origin:Wuhan, China

... focal length and are best used to diverge a converging beam. Double-concave lenses can diverge a collimated beam to a virtual focus and are commonly used for image reduction and to spread light. Star Optic provides double-concave lenses in a variety of

Brand Name:UNIFORM

Model Number:AUTC-LGR-915

Place of Origin:CHINA

... aberrations. The Negative Meniscus Lens is used to increase the focal length of another lens while maintaining the angular resolution of the optical assembly Double concave lens Double-Concave Lens, also named Bi-Concave Lens, is used to

Brand Name:Sollente

Model Number:SOE-XP2015

Place of Origin:China

20mm 1W 3W Optical PMMA LED Lens Concave Frosted For Led Spotlight Lens Quick Details: 1. Dimension: Lens Diameter 20mm , holder 22mm 2. Beam Angle: 15°, 25°, 40°, 60°, 80° 3. Match Led: Cree XTE XPE XPG , SMD 3535, SMD 3030, SMD 2525 4. Materials : ...

Brand Name:Aogang Optics

Model Number: Photochromic Lenses

Place of Origin:China

... Finished Lens Blanks Transition Optical Lenses I. Technical Data: 1.60 Photochromic Semi Finished Lens Material: 1.60 Index Resin(Ne=1.61, Abbe value=32, Specific gracity=1.16) Color: Brown, Gray CONVEX SURFACE CONCAVE SURFACE Mominal Curve True Curve ...

Brand Name:WEIMENG

Model Number:WM-L-070

Place of Origin:Shaanxi,China

...Concave Dia 30mmLaser Focusing Lens FL 50mm 1000-1650nm Description: Laser Focusing Lens is made of two single lenses by gluding, the performance of multi-color (White light)imaging is much netter than thatof single lens. Achromatic lenses are glued together by two lenses...

Brand Name:JC

Model Number:QTZL-005

Place of Origin:China

...Concave Surface Mechanically Polished (One Side Flat) for Electronic Devices A concave synthetic quartz lens is a high-precision, inwardly curved optical component made from man-made silica, designed to diverge light rays, manage UV light, and improve heat resistance in electronics. These lenses...

Brand Name:MANKUN

Model Number:DK-45-12-LENS-H24

Place of Origin:China

.../S9/1202/CXM-9 Product Applications Led Lighting Lead Time 3-7 days after payment Ø50 mm low profile lenses for retrofits, downlights and

Brand Name:Silian

Model Number:Customized

Place of Origin:China

... and directional substrates, watch glass lens, optical lenses and surface acoustic wave devices; Because sapphire has good light transmittance, its infrared transmittance almost does not change with temperature, so it can be used as infrared ...

Brand Name:ChenMu

Model Number:CM-S5050-A120-12H1

Place of Origin:Zhejiang,China

Large Beam Angle 120 Degree LED Lens for 3030 Chips Optimized for Outdoor Lighting Applications Product Overview High-performance 120° beam angle lenses specifically designed for 3030 LED chips, delivering 93% efficiency for superior outdoor lighting ...

Brand Name:xinland

Model Number:Plano Convex Cylindrical Lens

Place of Origin:China

...Product Description: Cylinder Lenses are offered in both plano-concave and plano-convex configurations, they are typically used to focus incoming light to a line, or to change the aspect ratio of an image. Cylinder Lenses are available with positive or ...

Brand Name:ZKTD

Model Number:ZKTD- NCC100

Place of Origin:China

... lens, can be applied to the transparent and non-transparent lenses of plane, convex, concave and other types of surface shapes. It has no restrictions on surface finish and materials. It has the characteristics of non-contact, high precision and wide