In cocktail bars, where the focus is on the art of drink-making, spotlighting or accent lighting can be used to draw attention to the bar area. This not only highlights the skill of the bartenders but also puts the colorful drinks on display, adding to the visual experience.

If we assume that the manufacturer’s specification for the optical quality at the center of the lens is 100 lp/mm, the overall optical resolution is limited by the optical quality of the glass (100 lp/mm) or the camera pixel size (unspecified in this example) except for aperture settings f/8, f/11 and f/16 at which the system will be diffraction-limited to 89, 75 or 45 lp/mm.

If such a camera is used with the lens that was previously described as being able to resolve 100 lp/mm, the system will be limited by the lens and not the camera. This means that a camera that was capable of an optical resolution of 145 lp/mm is lens-limited to an optical resolution of 100 lp/mm.

Moreover, the intensity and direction of light also matter. Direct lighting can highlight specific areas or decor elements, while indirect lighting provides a softer, more evenly distributed light. This interplay between different types of lighting can create depth and texture, adding to the visual appeal of the bar.

In general, one should consider using a lens that has a higher optical resolution than the camera pixel-size limited resolution. In the above example of a camera with a Sony CMOS Pregius Gen2 imager with 3.45μm pixels, a lens from the 1-1955x series with an optical resolution of 200 lp/mm at the center and 160 lp/mm at the edge would provide a higher system optical resolution since it is not limited by the lens, but by the camera pixel size.

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Cameras and lenses contribute in different ways to the overall Optical Resolution of a Camera + Lens system. The lower of the two typically sets the Optical Resolution of the system. Because of this, the Optical Resolution of the overall system may be said to be camera-limited or lens-limited.

For bar owners or designers looking to captivate their clientele with the perfect ambiance, exploring diverse lighting options is crucial. From modern fixtures that make a bold statement to understated designs that create a cozy atmosphere, the right choice can significantly influence a bar's character and customer experience. Check out our selection of lighting solutions tailored for bar settings at Seus Lighting’s modern fixtures collection, where you can find the ideal elements to enhance your bar's design and functionality.

To learn more about the benefits of energy-efficient lighting and to explore various eco-friendly options that can make your home greener and more economical, visit our guide to energy-efficient light options for homes at Seus Lighting. This guide provides detailed insights into how choosing the right lights can contribute to a more sustainable lifestyle while enhancing the comfort and aesthetics of your living spaces.

Explore our comprehensive table below to see how different lighting types can dramatically alter the atmosphere of a bar. From cozy, intimate settings to lively, energetic spaces, understand the unique impact each lighting style has on various bar environments. This guide helps in making informed decisions about the perfect lighting setup for your bar's ambiance.

The optical resolution of the system in Case 1 is limited by the pixel-size of the camera at lower f/#s and it is diffraction-limited at higher f/#s.

For example, a camera that is based on Sony CMOS Pregius Gen2 imagers such as the IMX264 or IMX304 with a pixel size of 3.45μm has the capability of resolving 500/3.45 = 145 lp/mm.

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This is shown in the table below. The Numerical Aperture is calculated using the formula NA = 1/(2*f/#). The diffraction limited resolution is estimated at a wavelength of 550nm, using the Rayleigh Criterion:

It is worth noting that camera+lens systems are typically not diffraction-limited in their optical resolution except when the lens-iris is set to a very small aperture (corresponding to a large f/#, typically higher than f/8). The optical resolution of a camera+lens system is likely to be limited by the optical quality of the lens (specified in line pairs per mm) or by the size of the pixels in the camera.

Having looked at the effects of pixel-size, optical-quality and diffraction (f/#), we can draw the following inference. The limiting optical resolution of the system [in lp/mm] is based on whichever one of these three is the lowest. The following illustrative examples show how this information can be used to estimate the optical resolution of the system under different conditions.

Note that lenses with lower optical resolution can be used if optical resolution is not a paramount concern, and cost-effective, lower resolution lenses are quite usable in such applications.

For sports bars, functional and brighter lighting is key, especially in areas where screens are displayed. However, this doesn’t mean sacrificing style. Creative use of neon lights or themed fixtures can add an element of fun while maintaining the energetic vibe essential for a sports-centric environment.

Lens manufacturers typically provide this number as a specification of the optical quality of the lens. It is normally specified in line pairs per millimeter and it is a function of the optical quality of the lens, including the lens design (including the manufacturing tolerances) and the materials, which contribute to the overall Optical Resolution of the lens.

In contrast, for a luxury lounge, opulent chandeliers or designer pendant lights can make a bold statement. These fixtures not only illuminate but also serve as conversation pieces, contributing to the upscale atmosphere.

The psychology behind bar lighting is fascinating. Warm, soft lighting often creates a welcoming and relaxed environment, encouraging guests to unwind and stay longer. In contrast, cooler, brighter lights energize the space, making it ideal for bars focusing on live music or dance. The color temperature of lighting, measured in Kelvin, is crucial in this aspect. A lower Kelvin number results in a warmer, more inviting glow, while higher Kelvin numbers produce a cooler, more alerting light.

If a lens is said to be able to resolve 100 lines per millimeter, it means that the lens can resolve up to 100 equally-sized lines that are small enough to fit within a space of 1mm; for this, each line must be 0.01mm wide. This translates to an optical resolution limit of 10 μm for the system, unless limited by something else (e.g. the size of the pixels).

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From the above, one can derive the Diffraction limited resolution in lp/mm by calculating: 500/Diffraction limited spot size (in μm)

Optical Resolution is defined as the smallest sized feature that a given optical system is able to resolve. Resolution is tied to contrast – the ability of the system to discern shades of gray. For the sake of simplicity, the topic of the Optical Resolution in this article is discussed independent of contrast, with the topic of Modulation Transfer Function (MTF) covered in a separate article.

The optical resolution of the system in Case 3 is limited by the pixel-size of the camera at lower f/#s and it is diffraction-limited at higher f/#s.

The main takeaway is that the effect of diffraction on the optical resolution of a camera+lens system can usually be ignored for use-cases in which the iris of the lens is NOT stopped down, i.e. the lens-iris is set to a relatively low f/#. There are, however, use-cases in which the iris of a lens is “stopped down”, i.e. set to a high f/#. This is often done to increase the Depth of Field (DOF), therefore it is not uncommon to see the image “softening” perceptibly as the lens-iris is stopped down to improve DOF.

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Although this is not always true, cameras tend to be more expensive than lenses – therefore, the goal of most system designers is to select a camera first based on the “photonics” requirements, and then select a lens with an Optical Resolution that is better than or equal to the Optical Resolution of the camera.

Innovative lighting solutions can also play a role in enhancing the bar's theme. For a vintage-themed bar, Edison bulbs or classic chandeliers can add a touch of old-world charm. For a more modern, sleek look, LED strips and contemporary fixtures can be used to create clean lines and a minimalist feel.

When considering bar lighting, it's important to balance aesthetics with practicality. For instance, the bar counter itself needs to be well-lit for functionality, ensuring that bartenders can see clearly while preparing drinks. Pendant lights or track lighting are popular choices here, offering both ample illumination and an opportunity to introduce style elements. Above the seating areas, softer, adjustable lighting can be used to create a more relaxed ambiance. Wall sconces, table lamps, or dimmable overhead fixtures are excellent choices for these areas.

Lighting in a bar is not merely a functional necessity; it's an integral component of the establishment's character and ambiance. The right lighting sets the mood, guides the eye, and can even influence customer behavior. Whether it’s a cozy, dimly-lit corner for intimate conversations or a vibrant, brightly-lit space for lively gatherings, lighting plays a pivotal role in creating these diverse atmospheres.

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For a rustic bar, incorporating elements like lantern-style lights or fixtures made from reclaimed wood can add to the earthy, natural feel. These lighting choices not only provide warmth and comfort but also contribute to the storytelling element of the bar's design.

The following list offers targeted lighting placement ideas tailored for different areas within a bar. Whether it's highlighting the bar counter, setting the right mood in seating areas, or ensuring practical lighting in restrooms, these suggestions will help you illuminate your bar effectively and stylishly. An ideal resource for creating an inviting and well-lit bar space.

Per Nyquist, it takes a minimum of two pixels to resolve a feature in an image. The highest spatial frequency which can be resolved by a sensor, the Nyquist frequency, is effectively two pixels or one line pair. One can therefore arrive at a simple formula to estimate the camera-pixel-size limited spatial resolution of a camera:

Energy-efficient lights, such as LED bulbs, not only reduce your home's energy consumption but also lower electricity bills and minimize environmental impact. These lighting options offer longevity and quality illumination without the hefty energy usage of traditional bulbs.

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Note also that the optical resolution of the lens in lp/mm may be specified with two different numbers representing the optical resolution at the Central | Peripheral regions of the lens. For example, lenses in the 1-1955x series are specified to have Center | Edge resolutions of 100 | 160 lp/mm respectively. This constrains the lens manufacturer to ensure a higher optical quality in the center of the imaging area which tends to be more important to users. Permitting a slightly lower resolution towards the edge allows the lens manufacturer to produce more cost-effective lenses.

In the world of bar design, lighting is a powerful tool. It's not just about illumination; it's about creating an experience, setting a mood, and even impacting how long customers stay and how much they spend. With the right lighting, a bar can transform into an inviting space that reflects its unique identity and vision. Whether it's through subtle, warm glows or bold, statement pieces, lighting is a key ingredient in the recipe for a successful bar atmosphere.

The main takeaway here is that one should look at the pixel-size of the camera AND the optical resolution of the lens. The lens in our example that is specified to have 100 lp/mm optical resolution (and therefore not ideal for use with a 3.45μm pixel) would be well matched with a camera that has a limiting pixel-size of 500/100lp/mm [pixel size ≤ 5μm]. In this case, a 200 lp/mm lens would be overkill. This also means that the 100 lp/mm lens in our previous example would be well matched to a camera that had, for example, 5.5μm pixels.

The optical resolution of the system in Case 2 is limited by the optical quality of the lens at lower f/#s and it is diffraction-limited at higher f/#s.

Dive into the key factors to consider when selecting lighting for your bar in the list below. From the intensity and color temperature to energy efficiency and theme alignment, these crucial considerations ensure that your lighting choices not only enhance the bar's aesthetic but also meet practical needs. Perfect for bar owners looking to balance style with functionality.