Optics Accessories

Laser lovers are everywhere while they have to admit that they're often upset by the unfocused beam of their laser pointer or handheld lasers. It's the upsetting collimated laser beam though the...

Oh! No, the lights have gone out. This looks like a job for a light bulb changer such as yourself. Following the directions in this article shall make you a professional light bulb changer.

A digital scale is a great way to get an accurate measurement of an item's weight. Most digital scales give results in two decimal places, making it automatically more accurate than a standard...

Fluorescent light bulbs are becoming more popular because they use less energy and last longer than incandescent bulbs. However, the negative effects of fluorescent bulbs must be understood...

Alkaline is the adjectival form of the noun alkali and it refers to elements that have an oxidation number (the charge on the central atom) of +2. Alkali is an ionic, basic salt of an alkaline...

A diamond tester of several years' age is no match for today's variety of diamond simulants and synthetics, especially since those simulants have all the chemical properties of a real diamond. A...

Barcodes are an easy way to track packages, manage inventory and define prices for thousands of items. Barcodes also provide a way to set up an automatic sorting system for businesses.

There are a number of factors that will affect the lifespan of batteries in a flashlight. These include what type of batteries they are (whether they're A, AA, AAA, or 9 volt), how big the...

Laser pointers are small devices that emit a beam of light that projects a small, colored dot onto a surface. The main application of a laser pointer is to call attention to specific areas during...

If you need to wire LEDs for a project there are some things to know. LEDs, also known as light emitting diodes, can be very useful because of the amount of light emitted with only very little...

Handheld scanners--scanners compact enough to fit in your hand--have many different uses. Most people know that handheld scanners are used in warehouses and grocery stores to track inventory, but...

Whiteboard projection screens are used frequently in schools, offices, and even in homes. Many people, however, don't take time to learn the disadvantages of whiteboard projection screens as...

A security camera is an invaluable part of any home or business. Though we'd all like to believe crimes will never happen to us, it is better to have a camera and not need it than need a camera...

It's hard not to see a moving LED display. They can be programmed to do whatever is needed to get a person's attention. Flashing or streaming LED displays can be purchased outright, rented or...

X-ray fluorescence (XRF) is a release of energy from an electron that is released (or ejected) from the shell (orbit path) of an atom. A special instrument called an x-ray fluorescence...

Safety goggles are protective eye-wear made of plastic or flexible rubberized material secured to the head either with a flexible rubber strap or with standard eyeglass earpieces. Safety goggles...

Safety goggles are used to protect the eyes of the wearer during activities where eye injury is a risk. From inexpensive home improvement store plastic models, to prescription goggles such as...

The purpose of a stepper motor is to create rotation from electrical current driven into the motor. It functions well in open-loop position control applications. A factory makes use of a stepper...

Like a lot of electronic equipment, motion detectors are simple in their concept. They detect changes in the nearby environment, such as a shift in the heat signature when a person enters the room...

Motion detectors are used in a wide variety of places. There are many different types such as radar motion detectors, bugler detectors, sound detectors and infrared detectors. Each type reacts to...