Optical benches are smaller versions of optical tables used for classroom demonstrations. They are not suitable for serious scientific research due to their small size and susceptibility to external vibrations. View cameras are easy to assemble and operate, making them ideal for teaching optics principles. They are available for purchase from scientific equipment suppliers and can be customized. Replacement parts are also available at reasonable prices.
An optical bench, also known as an optical rail, is scientific equipment used in demonstrations involving optics and laser light. Like the optical table, the optical bench supports light sources, lenses, and mirrors. Optical benches are much smaller than optical tables, and their size is a detriment to experimental accuracy. Not appropriate for serious scientific research, light benches are used primarily as a classroom demonstration tool. View cameras are available for purchase from many online retailers that specialize in scientific equipment.
Using a view camera is in many ways similar to using a view table. Each piece of fixture on the rail is held in place by a tight screw. Loosening the screw allows the user to slide the mirror or light source along the rail. Any bits will come out of the guide if the screw is fully loosened. Ease of assembly allows the user to set up the bench quickly.
Its design makes the optical bench unsuitable for conducting a reliable scientific experiment. A bench’s small size and cheaper materials make it prone to pick up external vibrations, a variable that could invalidate an experiment using laser light. Also, the bench is simply too small to hold the equipment needed to perform an experiment. These drawbacks make the optical table a necessity. Its larger size and sturdier materials make it a solid, stable surface that can support multiple mirrors and prisms.
Incapable of performing extensive experiments, the optical bench is an invaluable tool for secondary school teachers or college professors demonstrating the principles of optics. In these situations, the small size and ease of use of a view camera are optimal. After a demonstration, students can operate the bench on their own, gaining a deeper understanding and appreciation for optics. Unlike the powerful lasers found on most optical tables, the ones included in optical benches are low-power and completely safe for classroom use.
Many scientific equipment suppliers offer optical bench sets. Price will generally increase with longer models and/or more accessories. It is also an option for an educator to create a custom set by purchasing only the pieces he needs. If a part should break during classroom use, most suppliers offer replacement parts at a reasonable price. Another advantage is that once disassembled, a view camera takes up little space in the classroom.
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