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How Do Security Cameras Work at Night

One of the many purposes of security camera systems is to watch over properties even as it gets dark. With this, surveillance cameras sold in the market are commonly built with night vision. Night vision enables the camera to record images even with very little light. Some advanced security cameras sold today can capture videos even when it is pitch black.

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How Do Security Cameras Work at Night

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  1. How Do Security Cameras Work at Night? One of the many purposes of security camera systems is to watch over properties even as it gets dark. With this, surveillance cameras sold in the market are commonly built with night vision. Night vision enables the camera to record images even with very little light. Some advanced security cameras sold today can capture videos even when it is pitch black. Footage from night vision security cameras are either black and white or black and green. Night vision videos look like those ghost hunting clips popular on the internet. Because of this, watching night vision records can feel a bit eerie. However, there’s no denying how helpful it can be. Have you ever wondered how night vision on cameras worked, exactly? Here’s how: Infrared Illumination Infrared night vision is the most popular technology when it comes to security cameras sold in the market. The same technology is currently used for night-vision goggles. Infrared night vision works by bathing an area being surveillanced with light invisible to the naked eye. When this light detects movement, it triggers infrared illumination. This then enables the camera to capture images and record videos. Some infrared technologies in more technologically-advanced cameras work with LED lights. This transmits better quality black and white images for high-definition viewing. You might be thinking, why is night vision footage in black and white? Why monochrome? Can’t it be in colored? The reason for so being is simple. Images caught on night vision cameras are in black and white because it’s easier for the human eyes to decipher. Human eyes can make more sense of shapes when images are in black and white. Deciphering footage that come in various shades of color puts more strain in the eyes. Low-light imaging

  2. Low-light imaging works with intensifier tubes that absorb light within a security camera's reach. Once this light enters the lenses of the cameras, the device amplifies it to record clear images. The technology in low-light imaging is usually used by night-goggle manufacturers. To explain how it works, light absorbed by night vision lenses are converted into electrons. This transforms the light into an electronic signal multiplied through a photomultiplier. This then passes through a phosphor screen. After that, it creates flashes of light that result in bright images and clear footage. Every color caught by this technology is converted into a shade of green for easier viewing. You might be wondering, why green? As mentioned earlier, images in monochrome are easier for the eyes to decipher. At the same time, green is the color that human eyes are more sensitive to. This allows us to get every detail and stops us from missing anything. Given the reasons above, low-light imaging cameras help get clearer images of people. This makes it easier for viewers of the footage to identify who's who. Another wonderful thing about low-light imaging cameras is that it's more budget-friendly. These characteristics make it popular among homeowners. It’s affordable, but still gets the job done. Thermal Imaging Thermal imaging has no need of light for it to be able to record footage. Instead, it operates and records images through the temperature of subjects on camera. Certain objects shot by thermal imaging survellance cameras radiate infrared energy. This is usually because of the temperature every subject usually has. The higher the temperature of a given object, the more infrared energy will be emitted. Thus, generating clearer images. Once infrared energy is caught on cameras, a black and white thermal image will be produced.

  3. With recent innovation, some thermal cameras can now project images in color. More advanced versions of these cameras feature higher levels of thermal sensitivity. At the same time, are able to detect objects even at a distance. If you want to know more about security cameras book a FREE demo from the Melbourne Security Specialists - Precision Security Australia. Experience all the great benefits it can give you. Know what it feels like to be safe and secure round the clock. CALL 1300 766 110 to start making your business more safe and secure.

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