Mention Studio ran out, they naturally will when it comes to four samples:
1, main light, that is, decisions being taken by preferred lighting lighting pattern, while other lights are only played a secondary role. Panasonic Lumix DMC-ZS5 Battery Charger Modern Studio with a master of light is usually issued by the soft light lamp. Use soft light lamp, because it emits light more evenly, easy to control. So-called soft light lamp, in fact, is placed in a case where one or a few light bulbs through the soft light box covers for light scattering (made from plastics or textiles) being taken by lighting, box larger, light bulbs, the more power stronger, wider illumination. For General Photo Studio, diameter is about one square meter of soft light lamp is capable of. Distance and angle of the lighting can be adjusted as needed, based on the determination of exposure to light.
2, fill light, also known as secondary, as its name suggests, it is about the role of the shadows to supplement lighting, shadows is talking about. In fact, can be used for supplemental lighting soft light as the main beam light box, adjust it by lighting distance or power output and main beam light than. If supplemental lighting exposures 3 gear less than the main aperture, light than it is 1:3, which means that the result will be a darker shade. If the fill intensity is close to the main light, for example half-level difference between Aperture, so talking about the shadows became very. For simplicity, fill light sources can be fixed to the ceiling or wall, is controlled by adjusting the output power of the shadow of shade. As for how to Nikon D80 Battery Charger make supplemental lighting achieved compared with the main light in the best light, you can only rely on repeated tests.
3, the background light. In most cases, was opened at a distance by photo and background. As light as the distance of the light source increases significantly weakened, and farther distances than the absorbed light the background, so the background brightness of darker than the absorbed many. According to be taken in the lighting conditions of the exposure, the background will appear darker, looks like the result is absorbed into the darkness of the background. If the photographer does not mind the background effects, of course, there is no backlight. But if you want to if you want to distinguish absorbed with the background, it is necessary to separate the background lighting, so there will be a so called backlight. However, the application to take into account the background color of the background light, distance and angle of the lighting and so on, and do a bad would be self-defeating, and therefore need to repeatedly adjust the backlight to use it right. In order to evenly illuminate a seamless backgrounds, sometimes you need to use two lights.
4, light hair. Due to the development of portrait photography techniques, hair has grown from the original cast of the so-called natural beam focusing less on the end, and gradually evolved into one or more broader and soft lighting, not only makes the hair from being black, but would also sketch out the outlines of absorbed, so it is also called the "separation". This method has now run out pretty commonly used, is used for this purpose a small soft light lamp or lamps. This hair light can also be used to approach to the implementation of a beam of light reflected through the ceiling, however, to note that control lighting range, if exposure to the nose does not look good.
These 4 types of lighting is the basic method of portrait photography light, these four kinds of methods can be applied flexibly, as needed, you Panasonic Lumix DMC-ZS7 Battery Charger can simultaneously use 4 or two or three, or you can use only a main beam with reflector. As regards the use of natural light in the Studio or outdoor portrait photography, with natural light and a reflector of light source is, of course, you can also take the form of lighting combining natural light and lighting.
At this point, maybe all optical methods are involved, these methods can be enough to say, this is the conventional practice of photographers. However, portrait photography, lighting method to capture portraits of the existing disadvantages sometimes still makes people feel seems to be what, in short, in a word: wonderful enough. So, what are the entrance to solve this delicate problem? approaches, or Yes, it is to use a light--emphasis on light.
Stress function adding bright colors to portraits, a momentum, highlight the absorbed form and enhanced stereoscopic, or draw attention to emphasize lighting some attention. Studios which are usually small in tough light without scattering, there is a momentum. Therefore, setting the lights don't have too much to spend, it even used a mirror to the other light sources, such as a portable flash units, reflective screen, can play a role in stress. If you are using Flash as a light source, you can put it in a support by means of a servo-only switches, photoelectric initiator, Flash and other lighting in sync. To take advantage of the mirror, primarily to control stress range of light. In order to obtain the best results, emphasizing the side rear light normally absorbed by issue, in some cases, will be launched into the lens, only damaging the image. Therefore, in order to ensure that the lens is not under the influence of glare, emphasis should be placed between the light and a lens made of black cardboard shade on tablets.
Stressed the intensity of light is not very strict requirements, because different photographers are after effects vary, but by more than a main beam level may wish to try aperture brightness as a starting point. However stressed the intensity of light has the same light, it will also have a rather dramatic effect, because the light quality is more tough, and the illumination angle of the light with lens reflections. Said a Word by the way, if you use Flash as a stressed optical light source, then in the JVC BN-VG121 Battery Charger measurement of stress intensity of light, you should close the presence of all other light sources.
Use stress can enhance the drama of the portrait and the stereo effect, and do not bother is not expensive. As long as a little practice you can master the tactic, and the results will enable you to access more portrait work.
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The digital camera also known as digital cameras, referred to as DCS (Digital Still Camera). Its essence is a non-film camera, which uses a CCD (charge coupled device) or CMOS (complementary metal oxide semiconductor) as a media converter parts, the subject is recorded in digital form in memory.
Features: digital camera is a set of optical, mechanical, electronic, in one of the modern high-tech products, it integrates image information JVC AA-VF7 conversion, storage, and transmission components, with digital access mode, and interact with your computer and real-time shooting features. Digital cameras have the following characteristics:
Now imaging: digital camera is the electronic image can be immediately displayed on the LCD monitor, computer monitor or television, real-time monitoring of video effects, feel free to delete the ideal picture.
(2) compatible with your computer: digital camera memory image transmission to a computer image processing software, can be engaged to shear, edit, print, etc., and images stored on your computer.
Telecommunications transmission: digital cameras, the image signal is converted to electrical signal transmission (Post Video Mail Service - E-mail), telecommunications transmission network or intranet. Basic structure: The biggest difference between digital cameras and traditional film cameras in their respective internal structure and principles. They have in common is by the optical lens, viewfinder, focus system, shutter, aperture, built-in electronic flash, etc., and some digital cameras viewfinder and LCD monitor LCD. Digital cameras as well as its special structure, such as CCD or CMOS, simulation signal processor, the A / D, analog-to-digital converter, DSP digital signal processor, image processor, image memory and output control unit and so on.
The following is the main function of the main components of the digital camera:
1) The main function of the lens: the light rays to the CCD or CMOS image sensors play a role in adjusting the focal length. For fixed focus digital camera, the ideal distance between the lens objects and focal plane are accurate calculation, which fixed the position of the lens and aperture. ZOOM digital camera, a mechanical device that can drive the lens groups before and after the movement, has been to keep the lens in the focal plane central to the distance from the lens to capture the near and far objects.
2) CCD (CMOS) image sensor main functions: the lens image signal coming into the simulation signal.
3) A / D converter: the digital camera to use the A / D converter CCD-generated simulation of the electrical signal is converted to digital signals and transmitted to the image processing unit. 4) The main function of digital signal processors: the main function of the digital signal processor through a series of complex mathematical algorithms, such as addition, subtraction, multiplication, addition, integral digital image signal to optimize the white balance (including: color balance, gamma correction, edge correction, etc.).
5) The image compression main functions: digital cameras, image processing, including data compression, image compression, in order to save storage space, the use of the JPEG encoder to get the image compression for still image (JPEG format).
6) the overall control circuit functions: master program chip (MCU) to coordinate and control the metering, computing, exposure, flash control and shooting logic control. When the power is turned on, the MCU from the check function is normal, if normal, the camera is in a state of readiness.
How it works: digital cameras in the course of half pressing the shutter at the subject scene (shutter ON state, contrary to the film camera) the image of JVC BN-VG121 Battery Charger the light coming from the lens after a media converter (CCD or CMOS)
Induction will be converted into optical signals correspond to the simulated signal, the simulation of electrical signals into a digital signal by A / D Analog to Digital Converter convert, and finally through the image processor DSP (Digital Signal Processor) and the master control program chip ( MCU) in accordance with the specified file format image to a binary digital form displayed on the LCD, such as pressing the shutter, put the image into memory.
1 x main features
Si9731 battery charger is a single chip IC, under the control of the system processor to section 1 or 3 NiCd/NiMH battery pulse charging lithium-ion batteries. The low on-resistance of IC internal (RSD (CON)) of the MOSFET to pulse signals applied to JVC BN-VF808U Battery Charger system processors, achieved through changes in duty cycle conduction and switching, high current pulse charging very little heat dissipation. Si9731 also provides a trickle charge mode, you can wake up when the battery is filled to a high enough voltage processor for charging and controlling. Si9731 contains precise voltage reference and error amplifier, therefore, for lithium-ion batteries also provide constant voltage (CV) charge.
Battery as a power supply standby power system power failure, has been widely used in industrial production, transportation, communications and other industries. If the battery fails or not enough, it is possible to cause a major accident, it must be comprehensive online monitoring of the operating parameters of the battery. Is one of the important symbols of the State of JVC BN-V408U Battery Charger the internal resistance of the battery. Both soon, capacity, insufficient or improper discharge of the battery, are reflected in the change from its internal resistance. So by measuring the internal resistance of batteries, to assess the status of its work. Current measurement of battery internal resistance of common methods are:
Ultra-pole of this what is it? Rapid development in the PC industry today, the demand for PC products slowly change with the Tablet PC last year heating the mobile Internet has gradually entered from concept to consumers' lives, the various fields of work. In this day and Toshiba Satellite A80 Hinge age, but also adhere to the old routes of the original notebook is bound facing elimination, the notebook industry needs a baptism of new ideas need to evolve a new product. Super pole is the mobile Internet context of a new product form.
IC need antistatic protection circuit, some of the protection circuit is built in, and some protection from the specific application circuit. In order to properly protect the IC, we need to consider the following:
* Caused by ESD mode of transmission of the IC
* IC internal ESD protection circuitry
* Application circuit and IC internal ESD protection complement each other
* Modify the application circuit IC ESD protection
The IC's internal ESD protection can block passed to the higher energy of the sensitive circuitry inside the chip, internal clamping diodes used to protect the IC from overvoltage impact. The application circuit external decoupling capacitor to limit ESD voltage at a safe level. However, the decoupling capacitor of small capacity may affect the protection circuitry of the IC. If the use of small decoupling capacitor, typically require external ESD voltage clamping diodes.
Development of fuel cell vehicles, in addition to considering the regular vehicle security, need to consider security requirements specific to fuel cell vehicles themselves. Especially in the trunk with a bottle of hydrogen and control system of cases, study on fuel cell vehicle rear collision safety is extremely important. How to prevent and to ensure fuel cell vehicles in the event of rear collision, does not cause a hydrogen leak, control systems fail, and the circuit is on fire, this fuel cell vehicle safety issues that must be taken into account in the development process.
2 establishment of vehicle rear collision model
20th BIRTV opened in Beijing, world's leading image makers Canon XF series professional grade full HD DV products carrying debut exhibition. As a professional-level product of Canon's landmark, Canon XF series with Quan Gaoqing, tapeless and ultra-portable features won unanimous praise in the industry.
BIRTV2011 Canon booth picture
Model of high quality and versatility
Canon XF305/300 has become the industry-recognized video collection of sophisticated equipment, is the art of high-specification authoring tool, is the model for professional-grade full HD DV products. Worked for BBC and Discovery photographed documentary AlGo Canon XF305 photographed, a famous producer of United States Secretary of State to visit China's feature film this machine humanized Buy Nikon EN-EL9A Battery Charger design left a deep impression on him. He said: the Canon XF305 50M rate advantage is very clear, even when processing at a later stage, to add color correction and Visual effects, nor has a big impact on picture quality, which is important for shooting high quality documentaries.
Canon XF series rookie XF105/100 also inherited the Canon professional full HD DV products excellent origin: XF105/XF100 the mainstream of Panasonic Lumix DMC-TZ7 Battery Charger international film and television industry is widely MPEG-2LongGOP image compression format and television business-grade digital camera using the mainstream 4:2:2 of color sampling rate. This allows to embed subtitles and pull processing, synthesis of boundary between the image can get a more natural effect.
Video record MXF (MaterialeXchangeFormat) file format, it can be the image, sound, such as industry-standard packaging format for data storage. Because each video encoding different from a digital camera, so MXF package format to reattach the data into a common file format, so that in the MXF-based television system with good versatility. MXF shooting data recording metadata can also be saved with the image and sound. Metadata, when video footage archive in the file server, when you use, you can search the metadata, for more effective management of imaging materials and applications.
Canon professional DVXF series show
Canon XF series of storage media is to use a wide range of CF cards. Most of the file-based storage of business-grade digital camera records that are unique to their own media, prices were relatively high. While the CF card is often used as recording media for digital SLR camera, JVC AA-VF8 Battery Charger high versatility, and easy to buy. Scientific design of dual CF card slots have continued to record and recording functions at. In addition to CF card slot, fuselage configuration also have SD card slots can be saved static content such as images, metadata, and menu settings.
Front projection technology product miniaturization trends in recent years there have been, from the first ultra portable projectors to the nearest Pocket projector, reducing the size of the projector gradually penetrate into previously inaccessible areas of the market. While the ultimate goal should be to make this size shrink projection module can be integrated into the handheld mobile devices, such as mobile phones, multimedia players, digital cameras, digital cameras, and so on.
As more and more digital media content is integrated in the handheld mobile devices, more restricted by the size of mobile devices, such as LCD's fixed Nikon EN-EL15 Battery dimension display device to limit the display of digital media content. Projection module would be a solution of display rich content and miniaturization of contradiction between an ideal solution for handheld devices.
3M recently developed an optical engine for portable mobile devices, including LED lighting, imaging chip LCOS technology and advanced multilayer optical film material. 12.5 mm thickness of the entire optical engine, w optical efficiency of more than 5 lumens.
Design requirements
Design of a miniature projection engine need to balance several key indicators.
First, the overall dimensions. Under the influence of handheld device miniaturization trend, the projection module should minimize the size, in order to minimize the effect of module on appearance and other features.
Followed by light energy conversion efficiency and power consumption. These two indicators are part of the associated, that is, with good JVC BN-VG121US Battery Charger luminous efficiency can help reduce power consumption, but the whole module power must also take into account the driving circuit for power. Due to mainly rely on battery-powered handheld devices, supply current and energy was very limited. Excessive power consumption may result in the following three negative consequences: because an excessive current is needed and will not power on, excessively short working time, heat too large causing machine heating up too high.
Is optical image quality to be considered final.
At the same time, also needs to take into account in the design of cost, on the route choice of material and technology must be given to volume production and reduce costs.
Modules:
Shape of the projection module as shown in the figure, illumination optical system, display chip, polarizing beam splitter Prism, projection lens and shell composition.
Lighting system is based on a high brightness white LED light. Ordinary high-brightness LED focused on maximizing overall light output, but did not Panasonic Lumix DMC-FP5 Battery Charger take into account light output angle distribution (typically, Lambert Lambertian distribution). For projection applications, this large angle of diverging light cannot all be gathered to the display surface of the chip, and eventually be projected out. Therefore, 3M has designed a special optical packaging systems reduce light output distribution point as a whole to around minus 30 degrees.
3M micro-projector's core technology is based on multilayer optical films (MOF) polarizing beam splitter Prism (PBS). The Prism is made of acrylic plastic injection molding, and while traditional PBS uses the glass Prism material. Using acrylic for the beauty of the outer surface of the Prism Prism material can easily be made non-spherical, these additional degrees of freedom can greatly help reduce the complexity of the entire projection optical system.
In the current application in the PBS, 3M integrates a total of three surfaces: a surface is located in the lighting section into the surface, helping to properly fill the plastic light display chip; the other surfaces are some emergent in lighting, mirror effect; and the third at the exit surface of the projecting part of the surface, as part of the projection. After so many Samsung TL100 Battery Charger optical functional integration on the PBS, the entire optical system is significantly compact.
Plastic Prism also brings some benefits: the first is to simplify the structure, because you can directly integrate with fixed structures and PBS, no other fixed structures, and greatly improve the accuracy and reliability of the securing; followed by reducing the weight, you can meet the requirements of mobile device lightweight; and, lastly, plastic is also easier to meet the vibration reliability test requirements.
Time flies, such as electricity, only a few years, TV technology leaps. As digitalization, information the waves are ascendant, audio technology is moving from traditional analog TV to a digital approach to speed up leap; video technologies have been from an analog age to enter the digital age, more from SD technologies forward to HD technologies, digital high-definition TV technology has been a trend of TV technology in China.
TV picture quality without video and lighting technologies, TV lighting is good or bad, a direct impact on the tone, levels, color picture clarity and artistic effects, TV lighting play a vital and important position in the TV program production. As video technology ushered in digital era, especially many television digital HD Studio of built, on lighting technology made has new of more high of requirements, on Studio lighting of digital process also takes on large of leads role, TV lighting technology must for this for good prepared, regardless of in using of lighting device Shang also is in lighting design of Nikon Coolpix S80 Battery Charger concept Shang are to catch era of trend, meet Studio TV making digital era of comes.
TV programming is a building on the technical basis of artistic creation, perfect idea must use certain audio and video technology and lighting technology can be achieved. Digital HD video technology requirements for light what's so special about it? What is the digital TV lighting ideas? We must first of all from the characteristics of digital cameras to find the root of the problem.
Traditional TV aspect ratio is 4:3, HD aspect ratio for the 16:9, keeps the screen width, the image more informative, the picture contains more. In the traditional content will not be taken to the canvas, were to the fore in the HD, especially lateral, side of the Studio floor streamer and the scenery on the side of light. As the size increases, change from the perspective of photography, the installation location and angle of projection is different in the past could be up against now has to consider carefully and select. Due to the increased range of lighting, lighting light precise strengthening of the area, which requires more light quantities and automatic lamp using with computer intelligence to solve the problem.
Digital line scan HD is 1080 lines, picture clarity improved, can show picture levels increase. Not reflected in the traditional screen out or do not know of an object or light, is clearly on the HD picture is to show it. Of course, this can be done by increased basic brightness, evenness and softness of light at the end of, adjust the ratio of light to properly reflect the relationships between all levels of Nikon EN-EL5 Battery Charger the object and the object. On one hand, in order to increase the brightness of the light distribution, granularity and increase the number of used lamps; on the other hand more lamps use will generate more unreasonable in light and shadow, it's contradictory to light increased a great deal of difficulty. Emergence of a new intelligent automatic lamps providing a very good solution.
Digital HD video camera sensitivity improved, tolerance than traditional cameras have larger increase, which means that the TV picture contrast increasing, proportion of illumination lighting can be greater, lighting style for more power. Digital high definition in the Studio more require delicate, even, soft light, while the right light than through structured and succinctness, which gives lighting Arts lighting provides more room for creativity, but also increases the difficulty of lighting application. This will be a light Division is one of the issues and new development areas.
Studio digital is the trend of TV production, digital studio lighting is the only way. It would appear that the Studio lights digital we must first change our thinking, cannot be satisfied for now looks and existing technology, with new ideas for guidance, to have a look to the future of ideologies, discovery and innovation m ore selected in lighting technology and equipment, so that it can adapt to the future development of television technology, to further improve the quality of television services.
Digital lighting itself does not refer to lighting arts digital, digital actually refers to the studio lighting Studio lights digital computer intelligent system devices. It will provide more convenient and better lighting of means and methods to achieve their artistic goals. Studio lighting system is mainly formed by the lighting systems and lighting control systems, lighting systems including hanging parts, lamp parts, power distribution components; dimming section includes computerized dimming console and thyristor power control cabinet. From the development perspective of the history of lighting technology, early implementation of the digital dimming control system, even to the digital network development, to lighting and its huge impact on career development was obvious.
Looking at the local TV station Studio, large and small, technical level of the lighting system is still relatively backward. Traditional lighting system technology in China has not given enough attention and development, general lighting control system is still in the simple technology of Panasonic PV-GS83 Battery Charger digital control, and the suspenders and the executing agency for lamps using DC motor, control information is simulation information, its shortcomings are obvious:
(1) cannot be stored light distribution information
Because of the widely used by the lamps is the normal lighting of lamps or mechanization, has no memory of intelligent features and positioning, each luminaire can only be fixed using, lights of different colors, angle, light, shape must have an independent lighting to complete, light distribution of the necessary information is not stored.
In this case, each lamp is basically a scene using only in the performance, results in use of lamps and a substantial increase in, and lamps and grabbed each other, making it difficult for lighting adjustments. Many light divisions are often different areas or different scenes of different lamp consumes the same position when often only at the expense of artistic effect to the will, if used the same light, a light multi-purpose intelligent lamp, we can solve the problem.
(2) has good lighting is difficult to modify
Needed actors in performance position change resulting from variations in scenic locations, the original location lighting to make the appropriate changes and some special place, environmental impact or set location to the location of the barrier, some light lamps cannot be manually adjusted by the artificial, conventional lighting systems are very difficult to cope with the immediate completion.
(3) different performances to cloth back light
If a Studio is a children's programming on Monday, Tuesday, is a game show, is a feature on Wednesday, sth Repeating the different types of programmes each week. Program of the same type of repeat, making the scene relatively fixed, lighting design should also be relatively fixed. But in the traditional lighting system, each program is needed all over again for each light distribution. So frequently under the arrangement, is difficult to fit the traditional lighting system.
(4) poor compatibility
Different manufacturers of lighting systems, control and communication protocols are completely different products cannot be interchanged between different manufacturers, versatility, compatibility is poor.
Clearly, traditional lighting systems have been completely unable to meet the needs of digital studio lighting, Digital Studio light system design should have a new idea. With the emergence of automated intelligent lighting, inside the lamp has a micro-computer control, executing agencies using precision control of stepper motor run, with a very complex structure and function, commonly known as the intelligent lights, light is being more and more designers understand and use, is the preferred device Digital Studio light system.
Intelligent lights since its introduction in 1981 has gone through a long path of development, it allows the lighting designer to the control of all the properties of light including light intensity, color, angle, shape of the beam, the beam size, even the beam moves, to the lighting designer to provide a completely free design space.
Intelligent lights in the country in all kinds of performances, Studio programme production is applied very early, but intelligent lights are used as special effect lighting. These are two reasons, first, early video camera technology requires the basic illumination lights is high, the second is the use of early computer lamp light source power small or poor optical structure, output less light, making the computer lights for a very narrow, and JVC BN-VG121US Battery most can only be used as a special effect. Today, digital HD camera sensitivity boost, basic illumination requirement significantly lower than in the past, while a new type of intelligent lights with a greater power of the light source and high luminous efficiency of new gas-discharge light source, a new type of optical lenses and reflectors, which makes the light output of intelligent lights can be greatly improved to meet the demands of modern TV lighting, application is more extensive. Now we are going to grasp these new structures of intelligent lighting system, and use it to enrich our digital lights Studio lighting system for construction. To use them more advanced equipment, rich design means to us, will certainly bring greater fr
To said what computer lamp in construction digital lighting Studio more superior, Paul Martin (Martin Professional Lighting) computer lamp is which a most ideal of select, due to it is a manufacturing professional lighting device of famous manufacturers, has been yilai has is committed to lighting device of research and development and production, products and in stage performances, and flow performances, and Studio TV lighting making in the are most widely of application, so is worth promotion of brand. Especially MAC2000 series products development in recent years, is the most advanced representative of intelligent lights, many designs are optimized for Studio lighting requirements, required device is to build a digital studio lighting.
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