Posts Tagged ‘ Bullet Camera’



Varifocal Bullet Camera

Written By:
Thursday, May 31st, 2012

Security cameras are able to use two main types of lenses to focus on the parameters of their recording. It could be a fixed lens or a varifocal lens. The fixed lenses have a consistent and unchangeable length of focus, where the varifocal lenses have a length that can vary substantially. Some people have heard the varifocal lens referred to as a zoom lens, which is the purpose of the following information.

Beyond just the lens itself, you also have to consider what your lighting requirements are going to be. The iris is normally the brains behind the amount of light that is allowed to come through the lens and into the sensor chip. It could be a fixed, manual or automatic iris on the lens. This whole process controls how the iris is able to make the light flow, which controls how small or large the aperture is going to be. It is the equivalent of the pupil in the human eyeball. If you are in a low lighting situation, you will want the aperture to be wide open to help promote enough light in to be able to power up the sensor chip inside. However, in a bright lighting condition, the aperture is too minute to prevent ample lighting from flooding out the sensor chip.

If you are using the security camera inside with a consistent light source, a fixed iris lens will be able to serve the purpose you need it for. However, the actual viewing range may need to adjust the shot to tighten it up, which is where a varifocal camera can be the key to it all. Settings that have lighting conditions that vary will require an auto iris lens to help compensate for all of the differences in lighting levels. Lighting situations that remain constant for extended periods of time but change between dark and light can use a manual iris lens. These particular lenses are changed y hand to help provide you with the optimal lighting conditions.

A lens is developed using a combination of different varifocal and fixed parameters along with the help of a fixed, manual or automatic iris aperture. The vast majority of security cameras have a focal length of between 3.6 mm and 16 mm for a fixed lens, but a varifocal lens will have a length of greater than 70 mm. Shorter focal lengths will provide you with a larger viewing area; whereas, a longer length will provide you with a narrower field of view.

Varifocal cameras are extremely easy to use and versatile for all of your needs. There are multiple forms of varifocal cameras, just like there are a lot of different types of irises for the cameras. Some of these cameras are manual, which means that you are going to have to physically go out and change the length of the camera. Other types are automatic and they can be changed with a simple control that is connected with the digital video 650 tvl indoor-outdoor varifocal camerarecorder.

The key is determining whether or not you are going to need a varifocal camera or not. Cameras that are located at the end of a straight, long driveway are the perfect places for varifocal cameras. You can zoom in on the objects in the driveway, as well as those coming in and out of it and still keep everything in focus. On the other hand, consider a camera that is pointing in the direction of the doorway to help monitor movement around the door. You would not need to have a varifocal camera in place, but a fixed lens would serve the purpose just fine.

If you are searching for a digital security camera that will provide you with a tight shot, you might want to invest in a varifocal bullet camera. This particular type of camera is reasonably priced, yet it will still provide you with the high definition picture that you have been looking for. Unless you have purchased a camera that is vandal proof, you need to make sure that it is located out of sight. The nature of this type of camera makes it vulnerable to an attack from an intruder, so keeping them hidden out of view is critical.

Before you make any major purchases, you need to determine if a bullet camera is the right choice for your specific needs. Beyond just that, you need to decide if a varifocal bullet camera is going to handle your specific application. Understanding the camera lens and how it works will help provide you with the necessary knowledge to be able to make an intelligent decision when purchasing you camera.

To begin, let’s talk about the three different types of cameras. Based upon their shape, they are the dome, the box and the bullet type camera. Dome cameras tend to be used mainly inside or outside of the property. Typically, you will find them mounted to the wall or a ceiling. Their bubble design makes them less bulky than that of their box and bullet counterparts. The vandal proof dome cameras are constructed from steel with a Lexan sphere for the camera to be able to view everything in the room.

Box cameras tend to be the most popular of all the cameras on the market today. Unlike the bullet and dome cameras, the box camera is normally sold as a basic camera with no lenses, additional hardware and no weatherproofing to name a few of the features they are lacking. You will need to purchase all of the components that you need for your specific situation separately, which in the end helps to make these cameras very flexible in what they are able to do.

700tvl weatherproof varifocal IR bullet security cameraAs time goes by, the bullet cameras are becoming more and more popular. They come equipped with a variety of features right from the beginning that makes them versatile in nature. Normally, they come built with weatherproofing technology and nighttime infrared features to provide them with some of the best advantages around.

However, the varifocal bullet cameras come with their share of disadvantages. Due to the way they have to be mounted, it can be extremely difficult to make them resistant to vandalism. If this is not something that you are worried about, the bullet camera can be one of the best options for your new digital security system.

The responsibility of the camera lens lies within one main function. It is meant to gather the light that is reflected onto objects in the field of view. The sensor chips range of viewing is between ¼ to ½ inches. These lenses may be fixed or varifocal to avoid a lot of technical issues when it comes to the different types of lenses.

Fixed lenses have a specific viewing range, which may be broad or tight depending on what type of lens you are using. A lot of times the fixed lenses are not able to be replaced because they are a vital component in the way the bullet cameras work, hence the reason why they are referred to as board lenses. The only way you can change your viewing range is to use another type of lens with these cameras, if the bullet camera is compatible for that change to occur. However, since the vast majority of these cameras use board lenses, they are not able to be changed out.

One of the best solutions to a fixed lens is to use a varifocal one. While fixed lenses only offer one length, the varifocal cameras can provide you with a variety of focal lengths. The range can be as extensive as 3.8 mm all the way up to 100 mm. That is quite a large viewing range when it comes to one camera lens.

What exactly does all of this mean when you think about the range and length of the camera lens? Generally, the shorter the length of focus the wider shot you are going to receive. Essentially the 3.8 mm lens will produce the widest angle possible. When you think about the longer focal lengths, you will notice that their viewing angle is extremely small. Lenses with 100 mm focal lengths will produce the tightest camera shot available. Another way you could think about it is to imagine the varifocal bullet cameras as that of a zoom lens. The larger the maximum amount is on the lens, the higher the zoom capability will be.

If you take a bullet camera and add an adjustable lens onto it, you will be able to term it a varifocal bullet camera. This particular type of technology comes equipped with the infrared features built right into the camera. There is a lot of information when it comes to choosing the right camera for all of your needs, but we are here to help you along the way. Anytime you have questions that need answering we will we standing by to help you in any way possible. For your entire security camera needs let us be the ones to help make the decision that much easier for you.

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Bullet Camera Day Night

Written By:
Wednesday, November 16th, 2011

When looking for versatility in a digital video security camera nothing may offer you more than a bullet camera day night.  Among the most popular types of cameras these days, the bullet camera day night usually comes packed with dozens of extra features, thanks to modern technology.  In the following article, we’ll take a look at digital video security cameras and how they work and especially how a bullet camera day night works.

There are three major types of digital video security cameras based on shape; the box type, the dome type, and the bullet type which includes the bullet camera day night.  For many years the favorite has always been the box type.  Although box type cameras are somewhat obtrusive, they are versatile because you must purchase the lens separately, which allows you to change the field of view characteristics when ever you want.  Also, box type cameras are intended for indoor use, but can easily be converted to outdoor use by placing the camera in an outdoor rated housing.

Next in line is the dome camera.  Dome cameras are used indoors or outdoors but it seems as though the majority of their applications lean toward indoor installation and mounting.  These cameras are fast becoming competitive with box cameras because they are small and unobtrusive, versatile with many features, and are easy to mount to the wall or ceiling.  Dome cameras can be purchased as indoor, outdoor, or indoor/outdoor models.  The can also be sold as vandal proof because once they are properly mounted on the ceiling it would be very difficult for a vandal to change the position of the camera.

Finally, there is the bullet camera day night or just a plain bullet camera.  They are so called because their shape resembles the shape of a bullet.  Bullet cameras may be mounted in several different ways.  Regardless if they are mounted on the wall or ceiling, bullet camera mounts normally have a bit of an extension arm that aids in getting the camera in the exact position you desire.  The down side to this is that the camera can become vulnerable to vandalism because it can be easily repositioned.

Now that we’re familiar with the types of cameras, let’s talk a little bit about how a bullet camera day night works.  As a matter of fact, all three types of cameras produce digital video images in the same manner and this is how they do it.

The lens’ job is to gather the reflected light from images in its field of view, and focus them onto a very small censor chip (the chip ranges from 1/4 to 1/2 square inch).  The sensor chip is a highly specialized electronic chip that can convert light energy into electrical energy.  The electrical energy can be measured and the values used to recreate the actual image as a digital video image on an electronic display monitor.

There are two different type of bullet cameras day night:  1) Is the true day night camera and 2) is the infrared day night camera.  The true bullet camera day night has an incredibly sensitive chip that can utilize the smallest amount (starlight for example) of light to produce a full color night-time video image.  The Infrared camera is not quite as sensitive and it uses infrared Light Emitting Diodes or IR LEDs to light up its field of view.

Although this infrared light is seen and processed by the camera, the human eye cannot detect it.  Therefore, this camera’s light goes undetected while producing high definition, crisp images.  However, since IR light is outside the visible spectrum, it cannot produce color images like a bullet camera day night; IR images are monochromatic or black and white.

So a true bullet camera day night is able to produce clear, color visible video images conditions with the least amount of light available while the IR bullet camera does so by the use of IR LEDs.  Generally, the more LEDs used to produce infrared “light” the longer the range of the camera in total darkness.

To summarize, the bullet camera day night is a versatile digital video security tool.  It provides the same quality video as box camera but doesn’t require an additional housing.  It provides the capability for true day night or IR imagery like a dome camera but it has a much longer range potential due to the size and shape of the camera.

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Home Security Video Camera

Written By:
Tuesday, September 6th, 2011

In the not too distant past, home security video cameras were only for the rich and famous.  Technological advancements and becoming digital has now made home security video cameras so economically priced that there is a system available for just about any budget.

Security Camera King features a great selection of home security video camera systems.  They offer four different Digital Video Recorder (DVR) based systems:

  1. Elite-Mini Economy Series – Don’t let “mini economy” fool you.  This system comes with a full array of features and uses the latest CODEC (COmpression/DECompression utility) H.264.  The unit is accessible from smartphones such as the Iphone, Nokia, Android, Blackberry, etc.  This unit is lacking a PTZ control connection and there is no HDMI video output.
  1. Elite Mini DVR – The home video security cameras used for this system are all run on the H.264 CODEC the latest and most efficient CODEC available today.   The DVR has the ability to house one Hard Disk Drive (HDD) and a USB connection for downloading videos.  It has many of the features of our full-sized Elite DVRs but does not support a CD/DVD burner.
  1. Elite DVR – This is a full-feature packed Enterprise level H.264 real-time DVR.   The DVR supports multiple hard disk drives for extended storage times and also has room for a CD/DVD burner.  This system is installed by many high end security companies that seek a quality based security system.
  1. Ultimate DVR – This system is called the “Ultimate” because there is no better word to describe it.  This unit is not just for commercial purposes but makes for a very high end super-quality home security video camera system.  The DVR records in real-time video at 4 times the resolution of any other standalone DVR available anywhere in the industry.  In addition, the DVR can record D1 quality video in real time on all channels!  We feel that Ultimate Series DVR System has the best quality DVR in the industry.

So now that you know there are four different types of DVRs (and basically four different types of systems) available from Security Camera King you should have no problem picking the system that is right for you.  In addition any camera that we sell will work with these systems so if there is a particular home security video camera that you are looking for, chances are we have it and you can include it in your bundle package when purchasing your system.

Security Camera King offers many different types of home security video cameras.  We offer box security cameras, bullet security cameras, indoor dome security cameras, fake security cameras, vandal proof dome security cameras (which come as a standard item when purchased with a system bundle), Pan-Tilt-Zoom or PTZ cameras, Network IP security Cameras, Explosion Proof Security Cameras, and hidden cameras.

Realistically speaking, probably the most common indoor home security video camera is the dome camera.  They are small, unobtrusive, and easy to install and produce great high-quality video images.  Many are made as indoor/outdoor models.  As a matter of fact, all of the bundled systems that Security Camera King offers for sale except the Ultimate bundle, include the 420 TVL Indoor/Outdoor Vandal Resistant Dome Camera Product# OD-LX420IR50 (The Ultimate system offers the same type of camera but with a greater resolution and offers the 550 TVL Indoor/Outdoor Vandal Resistant Dome Home Security Video Camera Product# OD-LX550IR50).

Of the cameras mentioned above, those most likely to be used as home Security Video Cameras are the box cameras, the bullet cameras, and the dome cameras.

Box cameras are indoor cameras unless a separate weatherproof housing is purchased for them.  However, for inside coverage, depending on the size and decor of the rooms, they may be a bit large and stick out too much.

Bullet cameras make excellent outdoor home security video cameras because they already come with a weatherproof housing, and most come with their own InfraRed Light Emitting Diodes to record video in total darkness under infrared conditions.

The dome camera seems to be the most versatile camera as far as home security video cameras are concerned.   They have many additional features and one can purchase cameras with just about any kind of additional function.

So, if your “in the market” for a home security video camera system, contact one of our security experts via “Live Chat” or telephone.  We love to help!

 

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IR Bullet Camera

Written By:
Monday, May 2nd, 2011

When looking for versatility in a digital video security camera nothing may offer you more than an IR bullet camera (InfraRed bullet camera).  Among the most popular types of cameras these days, the IR bullet camera usually comes packed with dozens of extra features, thanks to modern technology.  In the following article, we’ll take a look at digital video security cameras and how they work and especially how an IR bullet camera works.

There are three major types of digital video security cameras based on shape; the box type, the dome type, and the bullet type.  For many years the favorite has always been the box type.  Although box type cameras are somewhat obtrusive, they are versatile because you must purchase the lens separately, which allows you to change the field of view characteristics when ever you want.  Also, box type cameras are intended for indoor use, but can easily be converted to outdoor use by placing the camera in an outdoor rated housing.

Next in line is the dome camera.  Dome cameras are used indoors or outdoors but it seems as though the majority of their applications lean toward indoor installation and mounting.  These camera are fast becoming competitive with box cameras because they are small and unobtrusive, versatile with many features, and are easy to mount to the wall or ceiling.  Dome cameras can be purchased as indoor, outdoor, or indoor/outdoor models.  The can also be sold as vandal proof because once they are properly mounted on the ceiling it would be very difficult for a vandal to change the position of the camera.

Finally, there is the IR bullet camera or just a plain bullet camera.  They are so called because their shape resembles the shape of a bullet.  Bullet cameras may be mounted in several different ways.  Regardless if they are mounted on the wall or ceiling, bullet camera mounts normally have a bit of an extension arm that aids in getting the camera in the exact position you desire.  The down side to this is that the camera can become vulnerable to vandalism because it can be easily repositioned.

Now that we’re familiar with the types of cameras, let’s talk a little bit about how they work.  As a matter of fact, all three types of cameras produce digital video images in the same manner and this is how they do it.

The lens’ job is to gather the reflected light from images in it’s field of view, and focus them onto a very small censor chip (the chip ranges from 1/4 to 1/2 square inch).  The sensor chip is a high specialized electronic chip that can convert light energy into electrical energy.  The electrical energy can be measured and the values used to recreate the actual image as a digital video image on an electronic display monitor.

There are two different sensor chips that may be used and although they may go about producing the video image differently, the both produce the same result; digital video images.  The names of these sensor chips are the Charged Coupled Device or CCD and the Complementary Metal Oxide Semiconductor or CMOS.

These sensor chips are incredibly interesting because they possess an unusual trait.  They both are sensitive to near infrared radiation.  This is the type of radiation that is given off by TV remotes, DVD players, etc.  It is harmless to humans but even better for the security camera industry, it is completely invisible.  Therefore, it could be pitch dark and the camera can still produce a video image as if a spot light were shining in its direction.

It does this by the use of InfraRed producing Light Emitting Diodes or IR LEDs.  Generally, the more LEDs used to produce infrared “light” the longer the range of the camera in total darkness.  This is where the bullet camera comes in.

Due to its shape an IR bullet camera can really pack a large array of IR LEDs around its lens.  Some camera boast as many as 78 or more and a range if 300 feet.

To summarize, the IR bullet camera is a versatile digital video security tool.  It provides the same quality video as box camera but doesn’t require an additional housing.  It provides the capability for IR imagery like a dome camera but it has a much longer range potential due to the size and shape of the camera.

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