A lenticular lens array (400) for creating a visual effect for an image view ed through the lenticular lens array comprises a plurality of lenticules (402, ...

The focal length determines the lens’s magnification and the distance at which objects come into sharp focus. It affects the field of view and the capacity to photograph subjects up close or far away. The lens’s focal length determines the type of mount with which it is compatible.

The S-mount, also called the M12 Mount, holds significant popularity within compact embedded vision devices such as handheld scanners and medical diagnostic devices. Its compact dimensions render it a preferred choice for scenarios where spatial constraints are considered.

The circular polarization state is a special polarization state of elliptical polarization state, which satisfies the following conditions: 1) The field must have two orthogonal polarized components (such as x-direction and y-direction). 2) The two components mist have the same magnitude (Ex = Ey), 3) The two components must have a time-phase difference of multiples of 90 degrees. Thus the field pattern can be written as:

Camera lens mountchart

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Now that you understand what camera lens mount types are, let us learn the factors you need to consider while picking the lens mount for your application. They are as follows:

Camera lens mountcanon

When it comes to embedded vision technology, choosing the suitable lens mount is crucial for capturing high-quality images and unlocking the full potential of your devices.

Assume Ey in the mathematical expression for the electric field equals to zero, which gives the definition of electric field as:

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For instance, a lens with a focal length of 50 mm requires a larger holder height, rendering it irreconcilable with an M12 holder. M12-mount/CS-mount lenses typically have reduced focal lengths. A lens mount compatible with variable focal length lenses (zoom or varifocal lenses) could be selected for an embedded vision system that monitors production lines. This would allow the magnification to be adjusted to focus on specific aspects of the production process.

Lens mountindex

The electric field on certain propagation position will oscillate only on the x-axis with the angular frequency of omega, which is shown as below:

The lens mount is a mechanical interface that securely attaches a camera lens to an imaging device, such as a sensor or camera module. This crucial component ensures proper alignment and positioning of the lens relative to the image sensor. Typically, the lens mount includes threaded screw holes, flanges, or other mechanisms that firmly attach the lens while maintaining precise alignment.When it comes to lens mounts, there are different styles available. However, the most commonly used mounting styles in embedded camera applications are the screw threaded and bayonet types. The screw-threaded type gets its name from threading your lens onto the camera body. It provides a secure connection between the lens and the camera, ensuring stability during use. On the other hand, the bayonet type uses three to four tabs to lock a lens tightly in place.

The polarization of electromagnetic wave (EMW) is the basic property of the EMW, which is widely used and controlled in Laser3,4, interferometer5,6 and photography7. The sketch for the linear polarization (red curves) of EMW is shown in Fig.1 below.

The S-mount lens system employs a screw-threaded mounting approach and finds frequent utilization in board-level cameras. This mount type encompasses a 12mm metric thread diameter with a pitch of 0.5 mm (M12x0.5), with the “M” denoting metric dimensions measured in millimeters of the outer diameter.

The cause of the light polarization is the vibration direction of the lighting material. The natural light comes from the molecular vibration of the nuclear fusion in Sun and this vibration is homogeneous on all directions. Thus the natural light does not have a specific polarization or can be defined as non-polarized EMW.

Camera lens mounttypes

Nikon developed the F-mount, primarily used for photography and videography. Although it is less common in embedded vision, the F-mount is the optimal choice when Nikon lens compatibility is essential. It is especially important in high-end imaging systems and configurations where alignment with professional camera lenses is essential.The F-mount is a bayonet-style mount system for Nikon SLR and DSLR cameras. This mount type has a 44mm diameter and a 46.5mm flange distance. The bayonet mechanism of the F-mount adds a layer of convenience, which manufacturers of large format cameras and line scan cameras appreciate greatly. F-mount is synonymous with Nikon’s SLR camera lens mount system, indicating its widespread adoption.Scientific imaging and machine vision applications emphasizing high-resolution and line scan cameras benefit from the F-mount’s versatility. It excels in situations requiring compatibility with large matrix sensors, where its expansive format shines. The F-mount has been in active production for over half a century, making it the only SLR lens mount to reach this remarkable benchmark.

High-quality, single-mode lasers produce a low-order Gaussian irradiance profile, the TEM00 mode. A Gaussian laser beam at the same average optical power as a ...

based on the Maxwell equations9 for EMW, the electric field can be split into orthogonal x-component Exand y-component Ey10 :

The sensor size and resolution determine the area a lens must cover and the level of captured detail. Modern embedded vision applications frequently employ high-resolution sensors to satisfy stringent image quality requirements. Ensuring that the lens mount chosen can accommodate the desired resolution is essential. While an S-mount lens (also called an M12 lens, with a thread diameter of 12mm) is suitable for most sensors used in embedded vision, large sensors designed to achieve higher resolution or pixel size will need a C-mount lens.At the same time, even the 1-inch (25.4 mm) diameter of the C-mount might not be enough in certain scenarios, which is when the F-mount becomes the optimal choice. In addition, the T-mount is superior to the C-mount for larger sensors and line scan cameras due to its substantially larger diameter. A larger sensor necessitates a lens that can cover the entire image area without compromising image quality.

Thus, the similar polarization of electric field on only a specific straight direction is defined as linear polarization. On the other hand, Assume Ey equals to zero, which gives the electric field as:

the circular and elliptical polarization state can be formed by letting linear polarization wave pass through a quarter wave plate at the specific angle. And the linear polarization state can be formed by the linear polarization plate as well as the polarization rotator.

Camera Lens MountAdapter

the left circular polarization (counterclockwise) is achieved when number n equals to (4m-1) (m is integer) and the right circular polarization (clockwise) is achieved when number n equals to (4m+1).

Bestcamera lens mount

Polarize definition: To cause to divide into two conflicting or opposing groups.

The circular polarization can be seen as the superposition of two linear polarization waves having the same magnitude, orthogonal polarization direction and pi/2 phase difference. The elliptical polarization wave can be seen as the superposition of two linear polarization waves having the different magnitude, orthogonal polarization state and the stable phase difference. Above all, the linear polarization state and circular polarization state are only the special states of elliptical polarization state.

The C-mount connection comprises an imperial thread with a one-inch diameter and 32 threads per inch. This resembles a metric thread, with dimensions comparable to M25.5 x 0.75 mm.The rear focal distances of the C-mount and CS-mount connectors are an important differentiating characteristic. C-mount connectors have a fixed rear focal distance of 17.526 mm, exactly 5 mm more than CS-mount connectors. While a CS-mount lens cannot be used directly with a C-mount camera, a C-mount lens can be used with a CS-mount camera via a CS-mount adapter, typically a 5 mm spacer ring.

Some lens mounts provide manual or motorized focus adjustments, which can benefit applications requiring precise focusing. Choosing a lens-to-mount combination that assures the highest focus quality is essential. For instance, a lens mount compatible with motorized focus control may be chosen in a medical imaging system. This allows healthcare providers to remotely adjust the camera’s focus without physically interacting with it.

Our C-mount cameras stand out with their standard C-mount lens interface. This widely used lens mount in the industry offers unmatched flexibility and compatibility with various lenses. On the other hand, our S-mount cameras are ideal for applications where space is limited or where a more streamlined and compact design is essential.

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The lens’s field of view is the extent of the scene it can capture. It is affected by both the sensor’s capacity and the lens’s focal length. C-mounts are more prevalent than S-mounts in applications that need a large field of view.

Generally, with x-direction oscillation and y-direction oscillation share the same phase, the linear polarization field pattern can be express as:

Introducing TechNexion, the leading provider of cameras with C-mount and S-mount configurations. With our wide range of camera options, we cater to all your imaging needs.

A lens mount compatible with ultra-wide-angle lenses may be preferred in a robotics application that requires a wide-angle view. This would enable capturing a larger area without requiring extensive camera-to-subject distance.

C-MountLens

where Ex is the magnitude of the electric field in x-direction, Ey is the magnitude of the electric field in x-direction, Phix is the phase of the electric field in x-direction, Phiy is the phase of the electric field in y-direction and omega is the frequency of the EMW. The three major polarization state are defined based on the differences in phase and magnitude of x-direction and y-direction EMW.

Compactness is critical in applications with limited space, such as a handheld retina scanner for example. When compactness is a priority, placing the sensor near the camera housing is critical.Because of their reduced size and ubiquitous availability, developers prefer S-mount lens types over C/CS-mount lenses in most embedded vision applications. Consider the use of a body-worn camera by law enforcement officials. The lens mount should be small and lightweight to provide comfort and unobtrusiveness while capturing high-quality images.

With our wide range of camera models and features, you can select the appropriate lens type that suits your needs perfectly. Check out our embedded vision solutions here.

Whether in industrial automation, robotics, machine vision, surveillance, medical imaging, or any other industry, TechNexion’s C-mount and S-mount cameras offer options to meet your specific imaging requirements.

2020911 — The amount of polarized light depends on the angle of light propagation to the surface. The surface influences the orientation of the E and B field at most for ...

Polarization of Waves is shared under a not declared license and was authored, remixed, and/or curated by LibreTexts.

Cinemacamera lensmounts

The CS-mount is similar to the C-Mount, except it has a shorter flange focal distance, making it appropriate for smaller sensors. CS-mount lenses are commonly used in security cameras and machine vision installations because they allow for compact designs without sacrificing optical quality. This lens mount has a flange focal distance of 12.5 mm and is the ideal standard for low-cost embedded vision applications.The CS-mount’s specifications are nearly identical to the C-mount’s, except for a 5mm reduction in flange focal length. This makes CS-mount a viable solution for limited space, and the reduced focal distance allows for more streamlined designs without sacrificing optical quality.

This blog post aims to simplify the selection process by exploring popular lens mounts used in embedded vision and providing valuable insights to help you make an informed decision.

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Laser MPE Tables · File:IEC60825 MPE J s.png. Maximum permissible exposure (MPE) at the cornea for a collimated laser beam according to IEC 60825, as energy ...

The mount size is the diameter of the lens mount thread, and the flange distance is the distance between the lens mount surface and the image sensor. These parameters determine how compatible the lens is with the sensor. A larger mount size permits a larger lens, allowing more light to reach the sensor. Nonetheless, mount size is not the only factor influencing lens design; flange distance is also crucial.A shorter flange distance enables lenses to be positioned closer to the sensor, allowing for the development of shorter-focus lenses that are simpler and more cost-effective. In addition, a shorter flange distance enables the construction of more compact cameras than longer flange distances. The proper balance between mount size and flange distance is required for optimal optical image quality in embedded camera applications.If you’re developing a surveillance camera module with a small form factor, an M12 lens mount with a brief flange distance may be appropriate. In this scenario, its small size and simplicity of integration would be advantageous.

TFL (Through-Focal-Length) and TFL-II mounts are less common in embedded vision systems but have significant applications in scientific and research imaging. Due to the larger diameter of these mounts compared to the common C-mount, they are ideally suited for high-precision and resolution situations. Their primary applications include microscopy, scientific instruments, and particular industrial inspection arrangements.In contrast, the T-mount, known as the M42-mount, distinguishes itself from other mount-varieties. Sophisticated cameras predominantly employ it with large, high-resolution sensors. This mount type has a metric thread with a 42 mm diameter and 0.75 mm pitch (M42x0.75). This mount’s standard flange focal distance is 55 mm.The TFL-mount was designed for APS-C (27.9mm) sensors, which are too large for a C-mount but too small for an F-mount. The TFL-mount possesses thread dimensions of M35x0.75mm and shares the same flange distance of 17.526mm as the C-mount. The TFL-mount provides the same durability as the C-mount but accommodates larger sensors, bridging the limitations of the F-mount.

The above is a elliptical polarization which can be seen as the superposition of two circular polarization possessing different magnitude and direction. And the general elliptical polarization pattern is shown below:

The electromagnetic waves such as visible light and microwaves consist of orthogonal electric and magnetic field both orthogonal to the propagation direction of the wave. The polarization of the electromagnetic wave is meant to describe the magnitude and the direction of the electric field of the wave. Specifically, the polarization of a radiated wave is defined as "that property of a radiated electromagnetic wave describing the time-varying direction and relative magnitude of the electric field vector; the trace and magnitude of the electric field vector are observed in the direction of light propagation"1,2,

The C-mount is a well-established and widely adopted standard, particularly prominent in machine vision and industrial applications. C-mount lenses are widely utilized in robotics, automation, quality control, and surveillance systems due to their adaptability and seamless compatibility with a wide range of camera sensors.

The elliptical polarization is the general definition of the EMW polarization state whose field pattern can be expressed after make the simple math transformation of Ex and Ey:

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