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How to choose megapixels million HD camera surveillance camera
How to choose megapixels million HD camera surveillance camera. Heat megapixels camera continues to heat up, it also caused businesses to use its heat speculation SD product, which is the test of our engineers, the Guangzhou-season training on this issue of the electronic aspects to recognize and distinguish from megapixels Lens:
Seiko lens megapixels camera currently used has fixed focus, manual zoom, power zoom and other types. For different industrial applications, basically have more mature applications. For example, the program currently used to capture traffic areas are fixed focus lens megapixels. So there megapixels lens and normal lens What difference does?
1, sharpness difference
In the center of the imaging surface of the lens is the highest resolution, the difference of the edge. Ordinary resolution at the center of the lens can basically meet the definition, while much lower edge sharpness, overall sharpness can meet the general requirements of 440,000 pixels camera.
Determine the clarity of the lens there are three key factors: 1, the lens material and purity. Fewer impurities lenses, interference of light which produces fewer, higher screen resolution; 2, lens grinding accuracy. Grinding precision lens grinding equipment have decided on this point at present compared to the difference of foreign domestic surveillance camera lens on several of; 3, lens coating precision. Precise control of the coating process is also one of the determinants lens clarity. Also megapixels lens with aspherical lens can reduce aberrations, relative to normal lens, while improving the clarity of design miniaturization done; through a special optical design technology, from the center to the peripheral portion of the image to achieve high quality Resolving power, high-contrast picture than conventional lenses is improved by about 2.5 times higher than the resolving power, even when the image is cut or zoom function can still ensure high quality.
2, the difference in spectral transmittance ability
The spectral transmittance of the lens can also help to improve the ability to screen resolution. Broadband light transmission rate, will greatly enhance the light amount of the camera target surface. Can enhance the contrast and brightness of the screen, the details of a richer picture of performance.
3, the spectral correction capability differences
Only a broad spectrum of high-resolution imaging for transmission capacity is not enough, if the lack of spectral correction capability of the lens, but will make some wavelengths of light in the camera can not accurately target surface imaging, resulting in the generation of the virtual image. This technique is a common lens can not be achieved by coating. KOWA using ED (Extra-low Dispersion) lens, can solve this problem. For example KOWA's LMZ0812AMPDC-IR is a corresponding 3-megapixel infrared unbiased lens, can be visible and non-visible at the exact same time the target surface imaging camera to obtain high-definition picture effect.
So we need to pay attention to those issues when selecting megapixels camera it?
1, the corresponding definition
HD camcorder has just entered the market, clarity is often around 100 million pixels, engineers often feel megapixels camera too expensive. SD and HD camera lens configuration, the effect is also decent, and clarity than standard definition systems has been greatly improved. So there are a lot of system screen appears fuzzy, especially clear picture of the center, edge blur circumstances, this debugging can not achieve satisfactory results. With 2,000,000, 3,000,000, 5,000,000 cameras into the market, engineers megapixels camera is also getting to know. Start a rational choice based on the appropriate camera lens. From the definition megapixels camera division, a common 1.3-megapixel correspondence, corresponding to 2,000,000 pixels, 3 million pixel mapping, high-megapixels camera continues to heat up the heat, which also caused businesses to use its heat speculation SD product, which is the test of our engineers, the Guangzhou-season training on this issue of the electronic aspects to recognize and distinguish from megapixels Lens:
Seiko lens megapixels camera currently used has fixed focus, manual zoom, power zoom and other types. For different industrial applications, basically have more mature applications. For example, the program currently used to capture traffic areas are fixed focus lens megapixels. So there megapixels lens and normal lens What difference does?
1, sharpness difference
In the center of the imaging surface of the lens is the highest resolution, the difference of the edge. Ordinary resolution at the center of the lens can basically meet the definition, while much lower edge sharpness, overall sharpness can meet the general requirements of 440,000 pixels camera.
Determine the clarity of the lens there are three key factors: 1, the lens material and purity. Fewer impurities lenses, interference of light which produces fewer, higher screen resolution; 2, lens grinding accuracy. Grinding precision lens grinding equipment have decided on this point at present compared to the difference of foreign domestic surveillance camera lens on several of; 3, lens coating precision. Precise control of the coating process is also one of the determinants lens clarity. Also megapixels lens with aspherical lens can reduce aberrations, relative to normal lens, while improving the clarity of design miniaturization done; through a special optical design technology, from the center to the peripheral portion of the image to achieve high quality Resolving power, high-contrast picture than conventional lenses is improved by about 2.5 times higher than the resolving power, even when the image is cut or zoom function can still ensure high quality.
2, the difference in spectral transmittance ability
The spectral transmittance of the lens can also help to improve the ability to screen resolution. Broadband light transmission rate, will greatly enhance the light amount of the camera target surface. Can enhance the contrast and brightness of the screen, the details of a richer picture of performance.
3, the spectral correction capability differences
Only a broad spectrum of high-resolution imaging for transmission capacity is not enough, if the lack of spectral correction capability of the lens, but will make some wavelengths of light in the camera can not accurately target surface imaging, resulting in the generation of the virtual image. This technique is a common lens can not be achieved by coating. KOWA using ED (Extra-low Dispersion) lens, can solve this problem. For example KOWA's LMZ0812AMPDC-IR is a corresponding 3-megapixel infrared unbiased lens, can be visible and non-visible at the exact same time the target surface imaging camera to obtain high-definition picture effect.
So we need to pay attention to those issues when selecting megapixels camera it?
1, the corresponding definition
HD camcorder has just entered the market, clarity is often around 100 million pixels, engineers often feel megapixels camera too expensive. SD and HD camera lens configuration, the effect is also decent, and clarity than standard definition systems has been greatly improved. So there are a lot of system screen appears fuzzy, especially clear picture of the center, edge blur circumstances, this debugging can not achieve satisfactory results. With 2,000,000, 3,000,000, 5,000,000 cameras into the market, engineers megapixels camera is also getting to know. Start a rational choice based on the appropriate camera lens. From the definition megapixels camera division, a common 1.3-megapixel correspondence, corresponding to 2,000,000 pixels, 3 million pixel mapping, high-end, 500 million pixels corresponding product, and individual vendors have done outstanding 10,000,000 pixel mapping. Then select the camera to select the same or higher than its pixel camera lens products in accordance with the highest resolution. Such as transportation commonly used to capture 2.0 megapixel CCD camera, you should choose 25mm or 35mm pixel corresponds to 2,000,000 products based on the actual application environment. Electric current common definition zoom lens at 1.3 megapixel general correspondence. The telephoto HD lens needs are diverse, for increasing the camera resolution, KOWA launched a 5 million pixel camera corresponding HD electric zoom lens, is the industry-leading level.
2, according to the camera application consistent product selection function
Some items needed in the course of the camera with infrared lights, you should use a lens with IR function. At night to get brighter picture. Virtual focus while also reducing the problem of the night. For more demanding environments, such as with laser light, for long-range target monitoring is necessary to select the use of ED (Extra-low Dispersion) lens products. Ensure non-visible wavelengths when 900um still able to achieve more than 60% transmittance. And for this part of the application, KOWA Lens has done more than 80% transmittance. For the launch of its high-end field Infrared unbiased lens, completely solved with non-visible light, making the picture quality has previously only increase.
3, the use of auto-focus function to solve the delay problem Lens
Most HD camcorders on the market today are using IP mode output, both in the surveillance cameras inside to finish encoding. After transmission through the network, the monitoring center needs to be decoded to be displayed on the screen. We know that the camera will result in a delay in the encoding process, the network also has a transmission delay, after more devices, forwarding the longer the delay, the more the number of the monitoring center will create the delay decoding process, the delay added together, will seriously affect the operation of the monitoring personnel. For a given product coke, this part of the delay is relatively less affected. As for the use of electric zoom lens system, it brings awkward to use. On the one hand is the definition of the system, on the one hand due to the superposition of the above-mentioned delay, causing the picture is always clear focus, or focus too long, unable to quickly capture the target. In this case we must choose with auto focus functionality. Automatic gathering of the lens, the front end of the auto focusing process is completed, so that the transmission back to the center of the picture is always clear, high definition can bring the following benefits to the system: 1, to reduce the focusing operation of the camera operator to extend the motor life ; 2, because the picture is always clear, the camera encoding can have greater efficiency and a higher compression ratio, reducing resource consumption transmission and storage; 3, shortening the target acquisition time, making monitoring personnel in the unit time can View more screen, thereby increasing the effectiveness of the monitoring system.
With the popularity of high-definition cameras, more and more high-definition camera system needs access. Seiko lens, Fujinon lens, the lens manufacturers have created Unitech launched a different focal length HD products. Give engineers more options. With ED lens, autofocus functions in high-definition lens, making high power zoom lens with the standard definition of product differentiation increasingly smaller. Future trends will be great fusion products, HD products will gradually replace the existing standard definition products into the mainstream market.
Seiko lens megapixels camera currently used has fixed focus, manual zoom, power zoom and other types. For different industrial applications, basically have more mature applications. For example, the program currently used to capture traffic areas are fixed focus lens megapixels. So there megapixels lens and normal lens What difference does?
1, sharpness difference
In the center of the imaging surface of the lens is the highest resolution, the difference of the edge. Ordinary resolution at the center of the lens can basically meet the definition, while much lower edge sharpness, overall sharpness can meet the general requirements of 440,000 pixels camera.
Determine the clarity of the lens there are three key factors: 1, the lens material and purity. Fewer impurities lenses, interference of light which produces fewer, higher screen resolution; 2, lens grinding accuracy. Grinding precision lens grinding equipment have decided on this point at present compared to the difference of foreign domestic surveillance camera lens on several of; 3, lens coating precision. Precise control of the coating process is also one of the determinants lens clarity. Also megapixels lens with aspherical lens can reduce aberrations, relative to normal lens, while improving the clarity of design miniaturization done; through a special optical design technology, from the center to the peripheral portion of the image to achieve high quality Resolving power, high-contrast picture than conventional lenses is improved by about 2.5 times higher than the resolving power, even when the image is cut or zoom function can still ensure high quality.
2, the difference in spectral transmittance ability
The spectral transmittance of the lens can also help to improve the ability to screen resolution. Broadband light transmission rate, will greatly enhance the light amount of the camera target surface. Can enhance the contrast and brightness of the screen, the details of a richer picture of performance.
3, the spectral correction capability differences
Only a broad spectrum of high-resolution imaging for transmission capacity is not enough, if the lack of spectral correction capability of the lens, but will make some wavelengths of light in the camera can not accurately target surface imaging, resulting in the generation of the virtual image. This technique is a common lens can not be achieved by coating. KOWA using ED (Extra-low Dispersion) lens, can solve this problem. For example KOWA's LMZ0812AMPDC-IR is a corresponding 3-megapixel infrared unbiased lens, can be visible and non-visible at the exact same time the target surface imaging camera to obtain high-definition picture effect.
So we need to pay attention to those issues when selecting megapixels camera it?
1, the corresponding definition
HD camcorder has just entered the market, clarity is often around 100 million pixels, engineers often feel megapixels camera too expensive. SD and HD camera lens configuration, the effect is also decent, and clarity than standard definition systems has been greatly improved. So there are a lot of system screen appears fuzzy, especially clear picture of the center, edge blur circumstances, this debugging can not achieve satisfactory results. With 2,000,000, 3,000,000, 5,000,000 cameras into the market, engineers megapixels camera is also getting to know. Start a rational choice based on the appropriate camera lens. From the definition megapixels camera division, a common 1.3-megapixel correspondence, corresponding to 2,000,000 pixels, 3 million pixel mapping, high-megapixels camera continues to heat up the heat, which also caused businesses to use its heat speculation SD product, which is the test of our engineers, the Guangzhou-season training on this issue of the electronic aspects to recognize and distinguish from megapixels Lens:
Seiko lens megapixels camera currently used has fixed focus, manual zoom, power zoom and other types. For different industrial applications, basically have more mature applications. For example, the program currently used to capture traffic areas are fixed focus lens megapixels. So there megapixels lens and normal lens What difference does?
1, sharpness difference
In the center of the imaging surface of the lens is the highest resolution, the difference of the edge. Ordinary resolution at the center of the lens can basically meet the definition, while much lower edge sharpness, overall sharpness can meet the general requirements of 440,000 pixels camera.
Determine the clarity of the lens there are three key factors: 1, the lens material and purity. Fewer impurities lenses, interference of light which produces fewer, higher screen resolution; 2, lens grinding accuracy. Grinding precision lens grinding equipment have decided on this point at present compared to the difference of foreign domestic surveillance camera lens on several of; 3, lens coating precision. Precise control of the coating process is also one of the determinants lens clarity. Also megapixels lens with aspherical lens can reduce aberrations, relative to normal lens, while improving the clarity of design miniaturization done; through a special optical design technology, from the center to the peripheral portion of the image to achieve high quality Resolving power, high-contrast picture than conventional lenses is improved by about 2.5 times higher than the resolving power, even when the image is cut or zoom function can still ensure high quality.
2, the difference in spectral transmittance ability
The spectral transmittance of the lens can also help to improve the ability to screen resolution. Broadband light transmission rate, will greatly enhance the light amount of the camera target surface. Can enhance the contrast and brightness of the screen, the details of a richer picture of performance.
3, the spectral correction capability differences
Only a broad spectrum of high-resolution imaging for transmission capacity is not enough, if the lack of spectral correction capability of the lens, but will make some wavelengths of light in the camera can not accurately target surface imaging, resulting in the generation of the virtual image. This technique is a common lens can not be achieved by coating. KOWA using ED (Extra-low Dispersion) lens, can solve this problem. For example KOWA's LMZ0812AMPDC-IR is a corresponding 3-megapixel infrared unbiased lens, can be visible and non-visible at the exact same time the target surface imaging camera to obtain high-definition picture effect.
So we need to pay attention to those issues when selecting megapixels camera it?
1, the corresponding definition
HD camcorder has just entered the market, clarity is often around 100 million pixels, engineers often feel megapixels camera too expensive. SD and HD camera lens configuration, the effect is also decent, and clarity than standard definition systems has been greatly improved. So there are a lot of system screen appears fuzzy, especially clear picture of the center, edge blur circumstances, this debugging can not achieve satisfactory results. With 2,000,000, 3,000,000, 5,000,000 cameras into the market, engineers megapixels camera is also getting to know. Start a rational choice based on the appropriate camera lens. From the definition megapixels camera division, a common 1.3-megapixel correspondence, corresponding to 2,000,000 pixels, 3 million pixel mapping, high-end, 500 million pixels corresponding product, and individual vendors have done outstanding 10,000,000 pixel mapping. Then select the camera to select the same or higher than its pixel camera lens products in accordance with the highest resolution. Such as transportation commonly used to capture 2.0 megapixel CCD camera, you should choose 25mm or 35mm pixel corresponds to 2,000,000 products based on the actual application environment. Electric current common definition zoom lens at 1.3 megapixel general correspondence. The telephoto HD lens needs are diverse, for increasing the camera resolution, KOWA launched a 5 million pixel camera corresponding HD electric zoom lens, is the industry-leading level.
2, according to the camera application consistent product selection function
Some items needed in the course of the camera with infrared lights, you should use a lens with IR function. At night to get brighter picture. Virtual focus while also reducing the problem of the night. For more demanding environments, such as with laser light, for long-range target monitoring is necessary to select the use of ED (Extra-low Dispersion) lens products. Ensure non-visible wavelengths when 900um still able to achieve more than 60% transmittance. And for this part of the application, KOWA Lens has done more than 80% transmittance. For the launch of its high-end field Infrared unbiased lens, completely solved with non-visible light, making the picture quality has previously only increase.
3, the use of auto-focus function to solve the delay problem Lens
Most HD camcorders on the market today are using IP mode output, both in the surveillance cameras inside to finish encoding. After transmission through the network, the monitoring center needs to be decoded to be displayed on the screen. We know that the camera will result in a delay in the encoding process, the network also has a transmission delay, after more devices, forwarding the longer the delay, the more the number of the monitoring center will create the delay decoding process, the delay added together, will seriously affect the operation of the monitoring personnel. For a given product coke, this part of the delay is relatively less affected. As for the use of electric zoom lens system, it brings awkward to use. On the one hand is the definition of the system, on the one hand due to the superposition of the above-mentioned delay, causing the picture is always clear focus, or focus too long, unable to quickly capture the target. In this case we must choose with auto focus functionality. Automatic gathering of the lens, the front end of the auto focusing process is completed, so that the transmission back to the center of the picture is always clear, high definition can bring the following benefits to the system: 1, to reduce the focusing operation of the camera operator to extend the motor life ; 2, because the picture is always clear, the camera encoding can have greater efficiency and a higher compression ratio, reducing resource consumption transmission and storage; 3, shortening the target acquisition time, making monitoring personnel in the unit time can View more screen, thereby increasing the effectiveness of the monitoring system.
With the popularity of high-definition cameras, more and more high-definition camera system needs access. Seiko lens, Fujinon lens, the lens manufacturers have created Unitech launched a different focal length HD products. Give engineers more options. With ED lens, autofocus functions in high-definition lens, making high power zoom lens with the standard definition of product differentiation increasingly smaller. Future trends will be great fusion products, HD products will gradually replace the existing standard definition products into the mainstream market.
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