LEDlight lens covers

A luminaire with well-directed light will necessarily be more energy efficient than a fitting that illuminates areas needlessly. This is something that needs to be considered when specifying a lighting design, especially if value engineering is a concern.

LEDLens manufacturers

The Society of Light and Lighting (SLL) has launched the latest revision of Lighting Guide LG4: Sports Lighting. As before, the aim of the guide is to create design...

Many people suppose that the main optical action of a prism is to disperse white light into its component parts, because that's what Isaac Newton used prisms ...

LEDlens types

LED’s typically have two levels of optics at play. The primary optic is the small dome that sits over the diode itself. This serves to protect and shape the output of the diode, but the light from a LED’s primary optic is too broad for most applications, lacking intensity over distance. This is why most LED fixtures use secondary optics such as lenses, reflectors, or TIR (total internal reflection) optics, to collect all available light and magnify its intensity towards a target.

Interior lighting optics is centred around creating a comfortable, productive environment for occupants, for example, within the workplace. Most interior optics are symmetrical, meaning light sources distribute light evenly in all directions. This type of light beam is recommended for both general lighting of large spaces and accent lighting for visual tasks.

Optics plays a crucial role in any lighting system’s performance. But what does the term ‘lighting optics’ mean? And why is an understanding of optics so crucial to efficient and effective LED lighting design for both exterior and interior settings?

The challenge for lighting designers when specifying luminaires for interior environments is to strike a balance between glare (unwanted bright light) and meeting the lighting needs of individual workers.

Mar 14, 2004 — It's called a condenser when additional optics are used. Its purpose is to provide a large area of light on something else. On a microscope it ...

Cheapoptics for led lighting

When you look through the lens of a microscope you see a circular area, the diameter of which is known as the field of view. To work out the field of view we need to know the field number and the magnification of the objective lens.

One solution is to use suspended luminaires with a built-in uplighter function – delivering illumination up to the ceiling as well as downwards. This helps to lower unwanted glare (otherwise known as reducing the space’s Unified Glare Rating), whilst also providing a brighter, more appealing workplace.

Bestoptics for led lighting

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Consider the image on the right as seen through the compound microscope with the eyepiece shown above. The microscope field of view when the 10X objective lens is used is found with the following formula:

The control and reduction of obtrusive light is hugely important for exterior lighting. The invention of artificial light and its application in the external environment has done much to safeguard and enhance our night-time environment. But, if not properly controlled, obtrusive light becomes light pollution and can present serious physiological and ecological problems:

Jenoptik will deploy 185 automated speed enforcement cameras by the end of summer 2025 in the city of Brampton, Ontario. The German firm's Smart Mobility ...

LEDfocusing lens

Depth of field is the range of depth that a specimen is in focus. A microscope that has a thin depth of field will have to be continuously focused up and down to view a thick specimen, as shown on the right. Different levels of this specimen are brought into focus by continuously adjusting the fine focus.

For over 80 years Edmund Optics has been a leading producer of optics, imaging, and photonics technology. Science & Technology

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A ruler is placed under a microscope and viewed using the 10X objecive lens. What is the field number on the eye piece of this microscope? 13 mm 130 mm 1.3 mm

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LED opticsexplained

All the examples above are forms of obtrusive light which can cause nuisance to others, or adversely affect fauna and flora as well as increasing energy usage and therefore energy costs. It follows that when it comes to designing a lighting system for an exterior area, it is important to ensure beam angles are set correctly.

Ultimately, good lighting design means providing the right light, at the right time, in the right place, controlled by the right system. It is the role of optics to help deliver this result.

An updated revision of SLL Lighting Guide LG14: Control of Electric Lighting has been published by The Society of Light and Lighting (SLL). The SLL is a division of the...

Polarizers are key optical elements for controlling your polarization, transmitting a desired polarization state while reflecting, absorbing or deviating the ...

20241029 — Magnification, in optics, the size of an image relative to the size of the object creating it. Linear (sometimes called lateral or transverse) magnification ...

Field of view is how much of our specimen we will be able to see through a microscope. It is simple the observable area in millimeters that we see through the ...

For example, if the field of view under low magnification using a 10X eyepiece and a 10X objective lens is 5mm the field of view when using a 40X objective lens would be 5mm X 10/40, which is 1.25 mm.

In simple terms, optics in lighting is the science of controlling the distribution of light in lighting systems. Whether a luminaire is part of a torch, a street lamp or a sophisticated stage lighting system, optics govern how its light behaves.

LEDLens Reflector

CMOS sensors are used to capture images in digital cameras, digital video cameras and digital CCTV cameras. They can also be found in devices, such as ...

In contrast to interior lighting optics, asymmetrical lighting is ideal for concentrating the light beam in one direction, so as to not illuminate areas that are not intended to be lit (obtrusive light).

Secondary optics in LED lighting is used to control the beam angle of the output light, to create either crisp-edged or diffused light, or to concentrate light in certain areas while limiting it in others. ‘Collimation’ is the process of aligning all components to bring light to its best focus. So, a perfectly collimated light beam, with no divergence, would not disperse with distance.

FOUNDATIONS OF EFFICIENT COMPRESSED AIR SYSTEMS. This course is an easy, efficient, and cost- effective method for sales and service professionals to learn ...

The field number is the diameter of the image area when seen under the eyepiece. This is often written on the side of the eyepiece, as shown on the right. In this case, the eyepiece has a field number of 20mm. So the image, when seen with the eyepiece only, has a diameter or 20 mm.