Roman Pollak’s Post

The f/# (or aperture setting) of your imaging lenses significantly impacts your depth of field (DOF). This figure is a great visual way to make that relationship clear! The DOF of a lens is its ability to maintain a desired amount of image quality without refocusing if the object position is moved closer and farther from the plane of best focus Essentially, over what range are objects in focus? A low f/# (wide-open aperture) increases light throughput and diffraction-limited resolution, but it decreases DOF compared to the same lens at a higher f/# Learn more about the relationship between DOF and f/# in this application note from Edmund Optics:https://lnkd.in/e-GA-7u4 And learn more about DOF's relationship to other key parameters in this other application note: https://lnkd.in/eq8JYC6t #Imaging #MachineVision #Optics #Lenses

The back focal length or simply BFD, is a critical parameter in scientific and industrial cameras. It defines the distance between the last optical element (usually the rear lens or the image sensor) in the camera lens system and the image plane or sensor surface. Read More: https://lnkd.in/d5w67EqU #Insights #Photonics #Industry #Article #Imaging #Sensors

It's that time again...Magnification Monday! Welcome to week 7 of Magnification Monday. This week I am again using the excellent Leica Ivesta 3 stereo microscope with a Leica LED3000 ringlight and a GXM HR4 4K camera with a 0.5x camera mount. The image is taken at 20x magnification But the question is what are you looking at? Answers in the comments below. I will reveal the answer this week! #magnificationmonday #microscopemonday

Here is your answer to Magnification Monday! If you guessed a bud on a tree branch well done! Bonus marks if you can guess the type of tree this has come from. #microscopymonday #magnificationmonday

𝐒𝐏𝐀𝐃 𝐓𝐨𝐅 𝐃𝐞𝐩𝐭𝐡 𝐒𝐞𝐧𝐬𝐨𝐫 𝐈𝐌𝐗560 captures wide-range distance information with high resolution 𝐋𝐨𝐧𝐠-𝐫𝐚𝐧𝐠𝐞 𝐚𝐧𝐝 𝐡𝐢𝐠𝐡-𝐫𝐞𝐬𝐨𝐥𝐮𝐭𝐢𝐨𝐧 3𝐃 𝐦𝐞𝐚𝐬𝐮𝐫𝐞𝐦𝐞𝐧𝐭 Using SPAD (Single Photon Avalanche Diode) light-receiving pixels to detect time of flight, the IMX560 SPAD ToF Depth sensor achieves long-range, high-accuracy distance measurement. Even under multipath interference, measurements remain robust and stable, ideal in various applications. https://lnkd.in/evtUsEtN 𝐈𝐌𝐗560 𝐩𝐫𝐨𝐝𝐮𝐜𝐭 𝐢𝐧𝐟𝐨𝐫𝐦𝐚𝐭𝐢𝐨𝐧 - Pixel: SPAD (Single Photon Avalanche Diode) pixel - Effective pixels: Approx. 0.1 MP - Image size: Type 1/2.9 - Unit cell size: 10.08 μm https://lnkd.in/eFEDRquh #Sony #sonysemicon #ToF #SPAD

Discover the power of automation with Nanosurf Studio! In our latest video, see how Viewport streamlines AFM measurements by overlaying AFM topography on optical images. Watch as we capture 64 frames of an SBS-PS polymer blend in WaveMode with precision and efficiency. Watch here: https://hubs.ly/Q02ZMP4H0

If you're curious about holography, this is the most informative video I've found! It focuses mainly on optical holography, but the concepts can be applied directly to electron holography, which I'm using in my project. Although holography originally began with electron holography, the field has become more accessible in terms of equipment and expertise in optical holography. Now, we may learn from developments in optical holography and apply those insights to electron holography. It is fascinating how 3D spatial information can be encoded into a 2D space and then reconstructed later.

LIGHT MATTER INTERACTION IN OPTICS SPACE

EOtech Holographic Weapon Sights are great with 1. Night Vision - Best light transmission, and unobstructive housing. 2. Magnifiers - Holographic technology results in crisp reticles even under magnification 3. Speed - With a large generous 68 MOA cirlce with a 1 MOA center dot, you have an optic that dominates at both speed and and accuracy

How to achieve realistic lighting for accurate appearance? Learn about ray tracing techniques for optical simulation: https://lnkd.in/ews73XKe 🖥️💡 Ray tracing simulates the propagation and interaction of light in a scene, creating images with accurate lighting effects by following rays from a virtual camera. Gain a basic understanding of ray tracing, ray casting, path tracing, bidirectional path tracing, and Metropolis bidirectional path tracing. See how Ocean™ uses these advanced techniques to create highly accurate virtual prototypes and generate predictive images and data. 🌊🔬 #RayTracing #ComputerGraphics #PathTracing #BDPT #MBPT #OpticalSimulation #OceanTechnology #Innovation #TechTrends #VirtualPrototyping #LightingEffects