Spherical Lens
1. Convex lenses have thin edges and thick centers, with at least one spherical surface or both surfaces spherical. Types are biconvex, plano-convex, and concave-convex. Concave lenses have thick edges and thin centers, with at least one spherical surface or both spherical. Types are biconcave, plano-concave, and convex-concave. 2. Effects on light: convex lenses converge light toward the principal axis after refraction; concave lenses diverge light away from it. 3. Foci and focal length: convex lenses converge rays parallel to the principal axis at a focus, denoted F. There is a focus on each side. Distance from focus to optical center is focal length f, equal on both sides. Concave lenses diverge parallel rays; their backward extensions meet at a virtual focus. There is one on each side, at equal distances from the optical center. This focal length indicates diverging power: shorter focal lengths produce stronger divergence and greater deflection. 4. Three special rays. For convex lenses: A. A ray parallel to the principal axis refracts through the focus. B. A ray through the focus emerges parallel to the axis. C. A ray through the optical center remains undeviated. For concave lenses: A. A parallel ray refracts so its backward extension passes through the virtual focus. B. A ray aimed at the virtual focus emerges parallel to the principal axis. C. A ray through the optical center remains undeviated. 5. Imaging: convex lenses form images by refraction, which can be upright or inverted, virtual or real, enlarged or reduced, and converge light. Concave lenses form only upright, reduced virtual images by refraction and diverge light. Lenses are widely used in security, vehicles, digital cameras, lasers, optical instruments, and other fields; applications continue expanding as markets develop.
Save to Favorites
Overview
Datasheet
Please provide your email to download the datasheet.
Invalid email format. Please try again.
Supplier Information
Related Products
-
Lens Mounting Ring *PN35038-LM315-D1 Optical Lenses Goldway
L: 11.5 mm Mounted Lens Diameter: Φ31.5 Mounted Lens Type: Cemented Lens (CT<11mm)
Oupute Technology Offers Various Sizes of Lens Mounting Rings for Singlet and Cemented Lenses, Allowing Customers to Easily Insert Optical Lenses into Optical Path Systems
-
Lens Mounting Ring *PN35039-LM315-D2 Optical Lenses Goldway
L: 16.5 mm Mounted Lens Diameter: Φ31.5 Mounted Lens Type: Cemented Lens (CT>11mm)
Oupute Technology Offers Various Sizes of Lens Mounting Rings for Singlet and Cemented Lenses, Allowing Customers to Easily Insert Optical Lenses into Optical Path Systems
-
Lens Mounting Ring *PN35040-LM125-D Optical Lenses Goldway
L: 8.5 mm Mounted Lens Diameter: Φ12.5 Mounted Lens Type: Cemented Lens
Oupute Technology Offers Various Sizes of Lens Mounting Rings for Singlet and Cemented Lenses, Allowing Customers to Easily Insert Optical Lenses into Optical Path Systems
-
C-mount Lens C0617
Optical Lenses
Tiinoptics
Focal: 6mm Format: 1/1.7" Apertuer: F2.8
-
C-mount Lens C0823
Optical Lenses
Tiinoptics
Focal: 8mm Format: 2/3" Apertuer: F2.8
Related Articles
For semiconductor, coating and laboratory vacuum chambers, thermal conductivity gauges suffer large measurement errors caused by gas type and ambient temperature.
Founded in Beijing in 2011, Beijing FJR Opto-electronic Technology Co., Ltd. specializes in R&D, manufacturing and sales of infrared thermal imaging equipment and complete optoelectronic systems.
A microlens array (MLA) is a high-precision optical component composed of hundreds or thousands of tiny, uniformly arranged micro lenses on a single flat substrate. Unlike traditional single lenses that focus one light beam, a microlens array can split, homogenize, and reshape light on a micro scale. It is widely paired with VCSELs, lasers, and image sensors, becoming a core part of modern miniature optical systems.
A laser bar is an array semiconductor laser chip integrated with dozens of emitters, which realizes hundred-watt quasi-continuous output on a single chip. With regular emitter arrangement and controllable fill factor, integrated thermal design and superior wall-plug efficiency compared to single chips, it acts as the core light source for high-power pumping, medical lasers and precision processing.
Loading...
Name
Phone
Organization
Use Case
Database Platform