{"id":444,"date":"2020-07-30T00:34:17","date_gmt":"2020-07-30T00:34:17","guid":{"rendered":"http:\/\/www.aveverything.com.au\/news\/?p=444"},"modified":"2020-12-15T04:19:45","modified_gmt":"2020-12-15T04:19:45","slug":"how-does-a-projector-work","status":"publish","type":"post","link":"https:\/\/www.aveverything.com.au\/news\/tips-and-advice\/how-does-a-projector-work\/","title":{"rendered":"How Does A Projector Work?"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">The projector might be considered the heart of a home theatre system, beaming your new favourite TV show, movie, or footy team onto the screen in glorious vibrant colour, and helping you relax after the day\u2019s slog.<\/span><!--more--><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">But <\/span><span style=\"font-weight: 400;\">how does a projector work<\/span><span style=\"font-weight: 400;\">, exactly? What technological wizardry is being achieved to entertain you? In this article, we\u2019ll provide a basic overview of the technology of a projector, and how it\u2019s able to beam your favourite entertainment onto the big screen.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">There\u2019s two common types of projector used in <a title=\"Home Theatre Installation Brisbane\" href=\"\/home-theatre-installation.php\">home theatres<\/a>\u2014the laser projector, and LCD projector.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">How laser projectors work<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">A laser projector uses laser beams to create images. Depending on the projector, a single laser beam can be used to create every colour that you see on your screen, or three primary colour beams can be used (red, green, and blue). The lasers are generated in the projector\u2019s laser diode module, which uses a combination of laser beams and mirrors to create a multitude of colours.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">The projector uses a number of different computer chips to create the final image. This control circuitry helps to control the temperature, monitors the power going through the system, and most importantly, interprets the signal from the lighting console or computer into something that the laser diodes and scanner can use to create imagery (the digital light processing chip, or DLP). These computer chips are just as important as the lasers themselves.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Laser projectors have been commercially available for around 5 years, and the technology has come a long way since then. They\u2019re considered to be a superior home theatre projector that can create a huge array of rich colour, be turned on and off instantly, and are highly durable.<\/span><span style=\"font-weight: 400;\">1<\/span><span style=\"font-weight: 400;\"> You can expect to pay anywhere from $1000 to $6000+ for a laser projector.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><span style=\"font-weight: 400;\">How do LCD projectors work?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">LCD (liquid crystal display) projectors work by sending lamp-generated light through a prism or series of dichroic filters, which creates red, green, and blue light. These primary colours are separated into three polysilicon panels, and by shining polarised light through them, can create individual pixels of colour to construct the images that you see on your projector screen. This technology is almost four decades old, and is still going strong.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">These types of projector tend to use metal-halide lamps, as they\u2019re capable of producing a large amount of light without overheating, as well as producing a broad spectrum of colour.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">LCD projectors have been on the market for about 40 years, and remain a popular choice today. While they can\u2019t provide the same richness of colour as laser projectors, they\u2019re still a great choice for a home theatre. You can expect to pay\u00a0<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Laser projectors have been commercially available for around 5 years, and the technology has come a long way since then. They\u2019re considered to be a superior home theatre projector that can create a huge array of rich colour, be turned on and off instantly, and are highly durable<\/span><span style=\"font-weight: 400;\"><sup>1<\/sup>.<\/span><span style=\"font-weight: 400;\"> You can expect to pay between $300 to $8000 for an LCD projector, depending on the quality of the brand. It\u2019s always best to do thorough research before investing in an expensive piece of technology.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><span style=\"font-weight: 400;\">References<\/span><\/h2>\n<ol>\n<li style=\"font-weight: 400;\"><a href=\"https:\/\/en.wikipedia.org\/wiki\/Laser_projector\" target=\"_blank\" rel=\"nofollow noopener noreferrer\"><i><span style=\"font-weight: 400;\">Laser projector<\/span><\/i><\/a><span style=\"font-weight: 400;\">, Wikipedia<\/span><\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>The projector might be considered the heart of a home theatre system, beaming your new favourite TV show, movie, or footy team onto the screen in glorious vibrant colour, and helping you relax after the day\u2019s slog.<\/p>\n","protected":false},"author":1,"featured_media":447,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-444","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tips-and-advice"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.aveverything.com.au\/news\/wp-json\/wp\/v2\/posts\/444"}],"collection":[{"href":"https:\/\/www.aveverything.com.au\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.aveverything.com.au\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.aveverything.com.au\/news\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.aveverything.com.au\/news\/wp-json\/wp\/v2\/comments?post=444"}],"version-history":[{"count":3,"href":"https:\/\/www.aveverything.com.au\/news\/wp-json\/wp\/v2\/posts\/444\/revisions"}],"predecessor-version":[{"id":448,"href":"https:\/\/www.aveverything.com.au\/news\/wp-json\/wp\/v2\/posts\/444\/revisions\/448"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.aveverything.com.au\/news\/wp-json\/wp\/v2\/media\/447"}],"wp:attachment":[{"href":"https:\/\/www.aveverything.com.au\/news\/wp-json\/wp\/v2\/media?parent=444"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.aveverything.com.au\/news\/wp-json\/wp\/v2\/categories?post=444"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.aveverything.com.au\/news\/wp-json\/wp\/v2\/tags?post=444"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}