Overview of Silicon Lens
Silicon lenses are widely used in infrared applications, requiring optical elements with high thermal conductivity and low weight. Silicon plano-convex lenses are ideal for optical systems that collect, focus, or collimate light in near-infrared, short-wave infrared (SWIR), medium-wave infrared (MWIR), or long-wave infrared (LWIR) spectra.
Features of Silicon Lenses
Excellent Light Transmission:
Silicon lenses have high transmittance in the visible and near-infrared spectral ranges.
High Refractive Index:
Compared to other materials, silicon lenses have a higher refractive index, which can effectively reduce the thickness of the lens.
Spherical Lens
Spherical lens, also known as a single lens, is an optical lens with a curved surface that converges or diverges light. They are widely used in imaging applications. Conjugate ratio, lens shape, radius of curvature, lens material, transmittance, wavefront aberration, scattered light, and type of coating are all features that must be considered when selecting a lens.
Types of Spherical Optics
There are two main types of spherical lenses: concave and convex. Concave lenses are thinner at the centre and thicker at the edges, while the opposite is true for convex lenses. At HS Optics, we routinely produce both types of spherical optics for a variety of imaging applications. The different formats we produce include:
Poly lenses are called convex lenses. It is thicker at the centre than at the edges. Convex lenses come in several shapes and sizes depending on how they look and work:
1. Plano-convex lenses
2. Double-convex lenses
3. Meniscus lens (concave-convex lenses)
Concave lenses. Thinner at the centre than at the edges. Concave lenses can be classified as follows:
laser optics windows are essential components used to separate different environments, such as the interior and exterior of an instrument, thereby protecting internal devices. These basic optical elements do not alter magnification but do influence the optical path. Key parameters for optical windows include light transmittance, surface accuracy, thickness, parallelism, and substrate material. Bena Optics provides high-precision windows made from various materials, including zinc selenide, germanium, silicon, barium fluoride, and calcium fluoride for infrared applications; fused silica and sapphire for spectral bands; and K9 glass for visible light. They maintain a large inventory of standard products and also offer custom optical windows tailored to specific needs.
Key Features of Optical Window
Optical windows possess high transmittance, hardness, erosion resistance, low thermal expansion, and minimal absorption loss, ensuring stable performance in various environments.
Made from materials like UV fused silica, quartz, infrared crystals, and optical glass, they offer excellent light transmission, high-temperature resistance, corrosion resistance, and electrical insulation. UV fused silica, for instance, has over 93% transmittance across the UV to IR spectrum.
Widely used in aerospace, laser systems, scientific research, and detectors, optical windows protect internal components and isolate external environments while maintaining high transmittance for specific wavelengths.
The Applications of Optical Window
Optical windows protect optical systems and sensitive electronics from external environments. Made of polished optical glass, they allow light transmission while isolating physical environments.
Optical lenses are essential elements in many optical components, primarily used for imaging, focusing, collimating, and diffusing beams. They affect the wavefront curvature of light and can either converge or diverge light, producing real or virtual images. These lenses are widely used in high-tech fields such as security, digital cameras, high-power lasers, and optical instruments.
Bena Optics currently operates two machining systems: high-speed polishing and classic polishing. High-speed polishing is mainly used for batch commercial products, while classic polishing is employed for repairs, large sizes, specific material requirements, and other special circumstances. Additionally, classic polishing serves as a pretreatment for aspherical surface processing. This dual approach allows Bena Optics to meet diverse customer needs and maintain high-quality standards across various applications.
Key Features of Spherical Lens
A spherical lens has a uniform curvature across its surface, making it widely used in optical devices like telescopes, microscopes, and camera lenses. Key features include:
Uniform Light Refraction: Acts as a collection of infinite prisms, providing uniform convergence and divergence of light, enabling image formation.
Imaging Quality: Spherical lenses have spherical aberration, where light passing through the center and edges focuses at different points, limiting high-precision imaging applications.
Application Range: Due to low cost and simple manufacturing, spherical lenses are widely used in various optical devices, especially in low-cost consumer products.
Additionally, spherical lenses are uniquely applied in coupling between optical fibers, lasers, and detectors, and in collimating fiber beams in dense wavelength division multiplexing (DWDM) systems.
The Applications of Spherical Lens
Spherical lens is used for in various optical devices for focusing, collimating, or expanding light, and forming images. Their applications span metrology, microscopy, aerospace, medical technology, laser systems, and security.
A plano-concave cylindrical lens has curvature in the vertical direction, functioning as a concave lens, while having no curvature in the horizontal direction. It is used to magnify a beam in a single direction, such as transforming a laser beam into a line or sheet of light, or altering the height of an image without changing its width. When combined with a concave cylinder lens, it can be used to shape the elliptical beam of a semiconductor laser into a circular one, among other applications.
Features of Plano Concave Cylindrical Lens
The cylindrical concave lens forms a diverging line-shaped virtual image and is primarily used to control the size of a beam in one direction. This lens consists of a flat surface and a concave cylindrical surface, with a negative focal length. Light passing through the axial meridian does not experience a change in convergence, but light passing through the refractive meridian does experience a change in convergence.
Applications of Plano-Concave Cylindrical Lenses
Beam Shaping:
Plano-concave cylindrical lenses are often used to convert collimated laser beams into line beams. By orienting the curved surface of the lens towards the light source, spherical aberration can be minimized, thereby achieving beam shaping.
Image Shaping:
A pair of plano concave lenses can be used for image shaping, particularly when it is necessary to shape a point source in one-dimensional direction.
Laser Scanning Systems:
In laser scanning systems, about plano concave lens are used to adjust the beam shape to meet scanning requirements. They can also be combined with other optical elements to achieve complex beam shaping functions.
Spectral Analysis:
During spectral analysis, plano-concave cylindrical lenses are used to adjust the divergence or convergence angle of the beam to meet different measurement needs.
Specification of Motorized Lens
Focal Length (mm) F Number Adapter Detector Field of View Rear Working Distance (mm) Interface Physical Dimension Working Temperature Coating Waterproof Rating Coating
Motorized Lens 50 1 640*512-17m 12.4°*9.9° 13 M34*0.5 L100.2 95 -40~60 IP67 HC
100 1 640*512-17m 6.2°*5° 14 M60*1 L137 116 -40~60 IP67 HC
150 1 640*512-17m 4.2°*3.3° 14 M60*1 L190 164 -40~60 IP67 HC
As a thermal imager manufacturer, we will do our best to meet all the need of customers.
Zhejiang ULIRVISION Technology Co., Ltd.(ULIRVISION) was established in 2005. ULIRVISION focuses on infrared thermal imaging, ultraviolet imaging, gas imaging, acoustic imaging technology innovation and industrialization, which is high-tech enterprise, national key software enterprise, national specialized and innovative small giant enterprise.
Zhejiang ULIRVISION Technology Co., Ltd. offers a wide range of range of infrared camera lens for infrared thermal imaging camera. Below are our featured thermal camera lens and key factors need to consider for choosing infrared camera lenses.
Thermal Infrared Lens
Manual Lens
Focal Length (mm)F Number Adapter Detector Field of View Rear Working Distance (mm)Interface Physical Dimension Working Temperature Coating Waterproof Rating Coating Manual Lens351.0640*512-17m17.7°*14.2°...
Athermalized Lens
Focal Length (mm)F Number Adapter Detector Field of View Rear Working Distance (mm)Interface Physical Dimension Working Temperature Coating Waterproof Rating Coating Thermalized Lens91.0640*480-17m72.8°*5...
Motorized Lens
Focal Length (mm)F Number Adapter Detector Field of View Rear Working Distance (mm)Interface Physical Dimension Working Temperature Coating Waterproof Rating Coating Motorized Lens501.0640*512-17m12.4°*9.9...
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