Frontiers in BioImaging 2018 will take place on Wednesday 27 and Thursday 28 June at the Technology and Innovation Centre, Glasgow. It will focus on the latest developments in applications of optical…

Sensorsize comparison

Optics is a branch of physics that deals with the determination of behaviour and the properties of light, along with its interactions with the matter and also ...

1inchsensor

2017518 — Con il termine di sistema di visione artificiale si intende la tecnologia che consente di realizzare sistemi di ispezione e analisi ...

Trying to decide which optical design software to use? Just try them out and decide for yourself. I like how Steve Eckhardt (great guy, btw, in case you’re looking for someone to consult with)…

Reminder: green laser pointers have a ton of IR in them. It needs to be filtered out if you don’t want it. See this old (2011!) Labrigger post.

PMT performance can degrade over time. A friend asked mine recently ask for suggestions on how to check PMT performance. In a prior post, I mentioned that the Hamamatsu PMT Handbook talks a…

The UCLA Miniscope project is an NIH BRAIN Initiative-funded project to open source head-mounted calcium imaging devices. Their web site is online now. They’ll be releasing all of the information needed for making these devices yourself, including data analysis. They’ll also… Read More

Let’s face it, digital camera sensors are measured in ridiculous ways. If you’re trying to make sense of what dimension a 1/2.8" sensor size is referring to, or if you’re wondering how thermal imaging sensor measurements are different, you’ve come to the right place.

With standard visible sensors, increasing the resolution without changing the sensor size increases the amount of detail in the image, however with thermal cameras increasing the resolution while maintaining the pixel pitch gives the same amount of detail on an image but with a wider field of view.

When smaller digital sensors were developed, they decided to measure them based on what the tube size would be if it were a 1950s video camera. As a result, camera sensors that measure themselves this way (1", 1/3", 1/2.8", etc.) typically have a diagonal measurement roughly two thirds of that diameter. However, to make matters even worse, manufacturers often wanted the sensor size to be a simpler fraction, so instead of being a more exact 9/16" or 27/32" for example, measurements were often rounded up or down to the nearest simpler fraction. This means it’s possible to have multiple digital sensors that are all classified as 1/3" sensors but with different actual dimensions.

1/1.3 inchsensorsize

Contact lens wearers who often buy color contacts must be very familiar with Russian 1day contacts from OLENS. The transparent and bright manner of these small ...

Peng Xi (Peking University) shared this resource his lab has developed: software for processing images for structured illumination (a superresolution technique). Here’s the Github repository. And here’s the paper (pay… Read More

1/1.28sensorsize

There are some companies that have no real competition. Maybe a product here-and-there in their catalog is subject to market forces, but most of their items have no competing options from other companies….

Philips offers ground-breaking solutions for underpass and tunnel lighting applications. Our tunnel luminaire products are made of high-quality components ...

If you dig deep into the technical specifications of a digital image sensor, you’ll eventually find a measurement for the “pixel pitch” of the sensor. The pixel pitch is a more precise and straightforward measurement that unfortunately isn’t mentioned often in standard camera specifications. Thermal imaging sensors on the other hand (MWIR and LWIR), as well as SWIR sensors, are all measured by their pixel pitch.

Camera sensor

2015929 — Doisneau inviò la foto alla sua agenzia, senza immaginare cosa sarebbe accaduto. ... scrittura o della sola visibilità di un'immagine.

4/3 cmos

The working distance is marked as 22 mm in this image, which is measured on-axis, from the center of the last lens. Practically, the mechanical working distance will be 20 mm.

Clarity and focus in photography starts when you preplan or pre-visualize a concept and when done properly, it provides the viewer insight into a photographer's ...

Olympus released a suite of new objectives this year, and one of them is this 10x/0.6 NA. This is probably the longest focal length (180/10 = 18 mm) objective you can get and use with… Read More

Olympus released a suite of new objectives this year, and one of them is this 10x/0.6 NA. This is probably the longest focal length (180/10 = 18 mm) objective you can get and use with…

Infiniti accounts for these differences by measuring the camera’s effective detail using PPM. We also use an internally developed tool that can preview the field of view for most sensor sizes at any focal length. Please contact us today for help with selecting the best camera for your application and budget.

— $999.00 (List Price $1,099); Panasonic Lumix G7 4K Digital Camera With 14 ... Best APS-C Sensor Mirrorless Camera. Fujifilm X-S20. 4.5 Outstanding. Pros ...

Oct 19, 2023 — A Fresnel has the capability to adjust the size of the beam from a narrow spot to a wide flood (typically 10° - 55°), making it a versatile ...

Image sensorsize

In this preprint, Stirman et al. report achieving a 3.5 mm field of view with 2-photon excitation with cellular resolution. The design involves custom scan optics and a custom objective built in the SLAB….

Austin Blanco has designed and built an open-source system for controlling complex imaging systems called TriggerScope. It’s highly customizable out of the box, and both the firmware and software are open. … Read More

The pixel pitch is quite simply the width of a pixel on the sensor, typically measured in microns (μm). This makes things simpler for calculating the overall physical sensor size, simply multiply the resolution by the pixel pitch. Unfortunately it creates confusion when it comes to how those thermal or SWIR sensor sizes affect the field of view and detail levels of the camera.

Peng Xi (Peking University) shared this resource his lab has developed: software for processing images for structured illumination (a superresolution technique). Here’s the Github repository. And here’s the paper (pay…

2019129 — Whichever one has the shortest focal length and smallest minimum aperture. I took a quick look through Nikon's wide angle lenses through 28mm, ...

Bar-Noam et al. 2016 (Shy Shoham’s lab) figured out how to image the mouse retina with 2-photon microscopy in vivo. … Read More

Austin Blanco has designed and built an open-source system for controlling complex imaging systems called TriggerScope. It’s highly customizable out of the box, and both the firmware and software are open.

In this preprint, Stirman et al. report achieving a 3.5 mm field of view with 2-photon excitation with cellular resolution. The design involves custom scan optics and a custom objective built in the SLAB…. Read More

Years ago, Benjamin Judkewitz wanted to try some new techniques out with laser scanning two-photon microscopy. However, the software we were using was rather cumbersome to modify. So he wrote his own software from…

In CMOS cameras, multiple transistors amplify the photon-to-electron charge directly from the pixel. This allows each pixel to be addressed individually, or ...

1 2 cmos

Other digital camera sensors get their size names and numbers from a much more bizarre history. When video cameras were invented back in the 1950s, they used vacuum tubes to capture the image, much like televisions of the day used vacuum tubes to display the image. These sensors were measured by the outside diameter of the tube, which typically produced a usable image about 2/3 of that size.

Andre and colleagues have a preprint up on their project generating inexpensive instrumentation for imaging and optogenetics experiments. The 100 Euro Lab: A 3-D Printable Open Source Platform For Fluorescence Microscopy,…

First let’s get the well-known 35mm format out of the way. The exact dimension of a “35mm sensor” measures 36×24mm, which doesn’t seem to have any logical relation. That’s because the name is in reference to 35mm film, which was the most common film size before digital cameras came around. It was named because it was 35mm in width, however the sprockets and information that needed to be included on the film resulted in an image size that was roughly 36×24mm. Obviously, digital sensors don’t need the sprockets and frame information, but the name stuck so that DSLR manufacturers could market their cameras as having the same size sensor as their traditional film cameras. (Thus you could use the same lenses and expect the same field-of-view.)

The UCLA Miniscope project is an NIH BRAIN Initiative-funded project to open source head-mounted calcium imaging devices. Their web site is online now. They’ll be releasing all of the information needed for making these devices yourself, including data analysis. They’ll also…

As more smaller digital sensors needed more differentiation, decimals were added for the measurements between 1/3" and 1/2", and between 1/2" and 1". We now have sensors categorized into various measurements involving fractions with decimals (1/1.9", 1/2.8", etc.), but all are still rough approximations of what the diagonal tube size might be. To make matters even worse, the practice of measuring sensors based on their diagonal measurement means that sensors with a widescreen aspect ratio fall into a different size category than a sensor that's the same width but in a 4:3 aspect ratio. Meaning a smaller widescreen sensor can offer a wider field of view than a larger “fullscreen” sensor.

This could be handy for some of you. Resonant scanners are fast, but inflexible. You can’t tell them where to go. They just oscillate at a fixed frequency. All you can do is control the…