Digit Combination Number
May 7th, 2009
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Charm Mini 3 Digit Combination Number Black Lock Padlock 15B $0.99 |
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4 Digit Push Button Combination Number Luggage Travel Code Lock Padlock Silver $2.69 |
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5 Digit Push-Button Combination Number Luggage Travel Code Lock Padlock Silver $2.60 |
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Cute Mini 3 Digit Combination Number Black Lock Padlock 15B $3.99 |
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CABLE BIKE/LUGGAGE STEEL DURABLE 4 DIGIT NUMBER COMBINATION LOCK ADJUSTABLE NEW $7.88 |
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5 Digit Push-Button Combination Number Luggage Travel Code Lock Padlock Silver $2.99 |
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4 Digit Push Button Combination Number Luggage Travel Code Lock Padlock Silver $2.68 |
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5 Digit Push-Button Combination Number Luggage Travel Code Lock Padlock Silver $3.99 |
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4 Digit Push Button Combination Number Luggage Travel Code Lock Padlock Silver $2.99 |
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4 Digit Push Button Combination Number Luggage Travel Code Lock Padlock Silver $2.68 |
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5 Digit Push-Button Combination Number Luggage Travel Code Lock Padlock Silver $2.98 |
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5 Digit Push-Button Combination Number Luggage Travel Code Lock Padlock Silver $3.15 |
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4 Digit Push Button Combination Number Luggage Travel Code Lock Padlock Silver $2.68 |
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HH045 2 x Mini 3 Digit Combination Number Lock Padlock $6.99 |
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HH044 2 x Mini 3 Digit Combination Number Lock Padlock $6.99 |
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Master Lock 5400D Select Access Key Storage Box with Set-Your-Own Combination Lock, 1-Pack $19.99 If you're still hiding your spare keys under the doormat, it's time for a better, more secure solution. The Master Lock 5400D Key Safe is a hanging unit that securely holds up to five keys. Compact and durable, this key safe will open only when you enter your personalized combination.The Master Lock 5400D Key Safe At a Glance:Reinforced metal molded body Holds up to five keys Up to 10,000 combin... |
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Master Lock 5401D Select Access Wall-Mounted Key Storage Box with Set-Your-Own Combination Lock $16.67 Secure, Reliable Key StorageTrustworthy and secure, the 5401D Key Safe offers a convenient locking solution that holds up to five house or car keys. Great for people on the go, the 5401D means you'll always know exactly where your keys are. And for added peace of mind, this key safe will withstand the tools a thief might use to attempt entry.The 5401D is a great key safe for families with children... |
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Master Lock 94DSPT 3-Digit Combination Gun Lock $7.75 Because Kids Find GunsProviding ways to enhance firearm safety is a major concern. Master Lock's full line of gun locks providess gun owners with an extra measure of security against unauthorized access or tampering by children.Most gun owners hide their firearms from sight. But no matter how careful they try to be, accidents can still happen. There are numerous instances each year where a gun loc... |
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Megatronix - KPL - Illuminated Digital Keypad Car Immobilizer Security System For Starter Disable $49.95 Passively arms itself 15 seconds after ignition key removed, Bright red status LED for deterring would be thefts (* button), Valet mode so you do not have to give your code to others (# button), Has option to install emergency override switch in case of keypad failure, Has option to install emergency override switch in case of system failure... |
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Cobra 200 GTL DX 4-Band 10-Meter Amateur Radio $299.99 10 KHz control. 30W RF power. 40W dual finals. Full-featured 32.8-ft. AM/FM/SSB radio. 100W SSB. 4 bands. SWR calibration system. 6-digit frequency counter. Variable power. Antenna warning indicator. NightWatch(TM) illumination. Roger beep. Talk-back & Echo controls. Large, full-function analog meter. Frequency counter input. 1-year warranty.... |
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The Original Slick Rick's dream Encyclopedia Dreams Interpreted in 3 Digit, 4 Digit and Lotto Combinations astrology Guides and Lucky Numbers ... |
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Phonames Dictionary: A Complete Directory of Four-Digit Telephone Numbers With Their Letter Equivalents and of Four-Letter Combinations With Their T $350.00 ... |
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Assessing Math Concepts, Hiding Assessment, More/Less Trains, Combination Trains, Two-Digit Addition & Subtraction, Changing Numbers ... |
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SecurityDR Data Guard USB Thumbdrive Lock $0.49 A combination lock for USB Flash Drives!Product InformationIncludes: FTC ID Theft Protection manual.Do you carry sensitive information on your USB Flash Drive and are worried about security or data theft? Not anymore with this Digital Innovations SecurityDr Data Guard USB Thumbdrive Lock! It's the perfect tool in the fight against Identity Theft!Constructed of a rugged metal design it fits any sta... |
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Logitech Desktop MK120 Mouse and keyboard Combo (920-002565) $12.83 A durable duo that brings comfort, style and simplicity together. Your hands will enjoy the low-profile, whisper-quiet keys and standard layout with full-size F-keys and number pad. The slim keyboard isn't just sleek-it's tough with a spill-resistant design, sturdy tilt legs and durable keys. You'll be moving along smoothly with a precise, high-definition optical mouse to help you get around.... |
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What's Your Number? 3 Digit Lottery Tracker - Deborah A. Wilson - Paperback $14.25 What's Your Number? 3 Digit Lottery Tracker |
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Chrome 3 Digit Combination Lock By Trademark Tools $29.7 This great Combination Lock from Trademark Tools is useful for numerous applications from lockers and backpacks to laptop bags and more.With a durable chrome body and three digit combination you can be confident that the items you secure with this lock will stay secure.Enjoy the safe and secure benefits of this Combination Lock todayFeatures include:. Chrome body with metal pad lock. Customizable 3 digit security code. Dimensions: 2.75 x 1 x .25 inches |
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PeliLock 1506 TSA Combination Padlock - 3 Digit - Stainless Steel Shackle $11.01 Pelican PeliLock 1506 TSA Combination Padlock - 3 Digit - Stainless Steel Shackle |
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Master Lock 1850T Combination Padlock $9.88 Master Lock 1850T Combination Padlock Master Lock 1850T Combination Padlock Features: 2 Pack, 1-7/8", Stainless Steel Combination Lock, With Combination Alike, 3/4" Case Hardened Steel Shackle, 5/16" Diameter Shackle, 3 Digit Dialing, Carded. Master Lock 1850T Combination Padlock Specifications: Part Number: 1850T Item Package Quantity: 1 Item Dimensions Weight: 2.16 Ounces 2 Pack, 1-7/8" Stainless Steel Combination Lock With Combination Alike 3/4" Case Hardened Steel Shackle 5/16" Diameter Shackle 3 Digit Dialing Carded. |
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175-D - Master Lock Combination Padlock - 4 Digit - Brass - Brass $19.2 set A Personalized Combination With This Four-digit Dialing Brass Padlock. Dial Is On The Bottom Of The Lock. [MLK175D] UPC: 071649395604 UNSPC: 46171501 0.3L x 0.3W x 0.48H 0.44 LB |
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Master Lock 1850D Combination Padlock $7.66 Master Lock 1850D Combination Padlock Master Lock 1850D Combination Padlock Features: 2 Pack, 1-7/8", Stainless Steel Combination Lock, With Combination Alike, 3/4" Case Hardened Steel Shackle, 5/16" Diameter Shackle, 3 Digit Dialing, Carded. Master Lock 1850D Combination Padlock Specifications: Part Number: 1850T Item Package Quantity: 1 Weight: 12.16 Ounces |
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Sportube TSA 3 Digit Combination Lock - Black $15.96 Specially made for Sportube the TSA (Transportation Security Adminstration) approved combination lock allows TSA officers to open, inspect and securley re-lock checked luggage. |
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Phone Tones - Seven Digit Number $4.99 We believe it is important to preserve what makes music special, and make it easy to craft listening experiences. At MOG, browse millions songs and play them instantly. Or just turn on radio where you can stop and replay songs. You can also create playlists for any occasion, and even download songs to your mobile. We are dedicated to employing the cleanest but most powerful technology so you can enjoy music as much as ever. |
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A Digit Of The Moon $17.44 A Digit Of The Moon |
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A Digit Of The Moon ... $17.44 A Digit Of The Moon ... |
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Algorithms and hardware designs for decimal multiplication. $49.99 Although a preponderance of business data is in decimal form, virtually all floating-point arithmetic units on today's general-purpose microprocessors are based on the binary number system. Higher performance, less circuitry, and better overall error characteristics are the main reasons why binary floating-point hardware (BFP) is chosen over decimal floating-point (DFP) hardware. However, the binary number system cannot precisely represent many common decimal values. Further, although BFP arithmetic is well-suited for the scientific community, it is quite different from manual calculation norms and does not meet many legal requirements.;Due to the shortcomings of BFP arithmetic, many applications involving fractional decimal data are forced to perform their arithmetic either entirely in software or with a combination of software and decimal fixed-point hardware. Providing DFP hardware has the potential to dramatically improve the performance of such applications. Only recently has a large microprocessor manufacturer begun providing systems with DFP hardware. With available die area continually increasing, dedicated DFP hardware implementations are likely to be offered by other microprocessor manufacturers.;This dissertation discusses the motivation for decimal computer arithmetic, a brief history of this arithmetic, and relevant software and processor support for a variety of decimal arithmetic functions. As the context of the research is the IEEE Standard for Floating-point Arithmetic (IEEE 754-2008) and two-state transistor technology, descriptions of the standard and various decimal digit encodings are described.;The research presented investigates algorithms and hardware support for decimal multiplication, with particular emphasis on DFP multiplication. Both iterative and parallel implementations are presented and discussed. Novel ideas are advanced such as the use of decimal counters and compressors and the support of IEEE 754-2008 floating-point, including |
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Algorithms and hardware designs for decimal multiplication. $49.99 Although a preponderance of business data is in decimal form, virtually all floating-point arithmetic units on today's general-purpose microprocessors are based on the binary number system. Higher performance, less circuitry, and better overall error characteristics are the main reasons why binary floating-point hardware (BFP) is chosen over decimal floating-point (DFP) hardware. However, the binary number system cannot precisely represent many common decimal values. Further, although BFP arithmetic is well-suited for the scientific community, it is quite different from manual calculation norms and does not meet many legal requirements.;Due to the shortcomings of BFP arithmetic, many applications involving fractional decimal data are forced to perform their arithmetic either entirely in software or with a combination of software and decimal fixed-point hardware. Providing DFP hardware has the potential to dramatically improve the performance of such applications. Only recently has a large microprocessor manufacturer begun providing systems with DFP hardware. With available die area continually increasing, dedicated DFP hardware implementations are likely to be offered by other microprocessor manufacturers.;This dissertation discusses the motivation for decimal computer arithmetic, a brief history of this arithmetic, and relevant software and processor support for a variety of decimal arithmetic functions. As the context of the research is the IEEE Standard for Floating-point Arithmetic (IEEE 754-2008) and two-state transistor technology, descriptions of the standard and various decimal digit encodings are described.;The research presented investigates algorithms and hardware support for decimal multiplication, with particular emphasis on DFP multiplication. Both iterative and parallel implementations are presented and discussed. Novel ideas are advanced such as the use of decimal counters and compressors and the support of IEEE 754-2008 floating-point, including |
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Double (Association Football) $66 Used - High Quality Content by WIKIPEDIA articles! In basketball, a double is the accumulation of a double-digit number total in one of five statistical categories-points, rebounds, assists, steals, and blocked shots-in a game. There are four possible types. A double-double is the accumulation of a double-digit number total in two of the five categories in a game. The most common double-double combination is points-rebounds, followed by points-assists. Since the 1986-87 season, Karl Malone led t |
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Double (Association Football) $66 Used - High Quality Content by WIKIPEDIA articles! In basketball, a double is the accumulation of a double-digit number total in one of five statistical categories-points, rebounds, assists, steals, and blocked shots-in a game. There are four possible types. A double-double is the accumulation of a double-digit number total in two of the five categories in a game. The most common double-double combination is points-rebounds, followed by points-assists. Since the 1986-87 season, Karl Malone led t |
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Double (Association Football) $59.08 Used - High Quality Content by WIKIPEDIA articles! In basketball, a double is the accumulation of a double-digit number total in one of five statistical categories-points, rebounds, assists, steals, and blocked shots-in a game. There are four possible types. A double-double is the accumulation of a double-digit number total in two of the five categories in a game. The most common double-double combination is points-rebounds, followed by points-assists. Since the 1986-87 season, Karl Malone led t |
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Louis Poulsen PH 3+- 2+-F 1 Light Floor Lamp in Chrome - PH 3+- 2+-F $1468 PH 3+-2+ Floor is a member of the PH 3-shade family, and the principle behind the PH 3-shade fixture was made in a few hectic months in the winter of 1925-26 for a large exhibition hall in Copenhagen, Denmark called ?Forum?. This is what PH said about his new fixture in 1926:?The real innovation in the PH-fixture is that it produces lighting which is both glare free and economical. It is easy enough to create glare-free light (indirect and strongly shaded light) if a portion of the light is allowed to be wasted, and it is equally easy to make fixtures which are highly efficient if you ignore the fact that they severely irritate the eye (strong specular reflection, etc.) but it is an art to make light both economical and glare free.?Before the development of the 3-shade fixture, Poul Henningsen and Louis Poulsen had been working together on designing the fixtures for the Danish Pavilion at the World Expo in Paris, France in 1925.When Poul Henningsen designed the fixtures for the World Expo, he had already been playing with the idea that the logarithmic spiral was perhaps a suitable basis for a new shade structure.The combination of diffused reflection and a logarithmic shade curve also gave PH the opportunity to control the fixture?s glare and shading, as each shade would evenly decrease the amount of light emitted according to their distance from the bulb. The luminance transitions from shade to shade would also appear harmonic. The relative size of the shades and their positioning was determined by the need to reduce glare - the light disposition on the shades and the light distribution demands - according to some remarkably simple principles.From the beginning it was obvious that the concept was extremely flexible. Not only was it possible to get it in many different sizes, but also with different undersides - either a white painted surface, a silver-plated or gold-plated surface. These different undersides were in order to achieve different lighting properties. PH envisioned that in a restaurant you would want the light to be warm and cozy and therefore you would use a gold-plated surface, as opposed to being in a hospital or dentist office where you would use the white painted surface.The first fixtures were all made with metal shades, but PH also wanted to develop a variant of the fixture, which would show a light distribution curve with less downward lighting. The result was shades made in opal glass with a sandblasted underside. The glass shades allowed 12% of the light to penetrate and contribute to the overall lighting of the room while most of the light was still reflected outward and downward from the matte undersides of the shades. The same principles which governed the matte metal shades governed this new shade material.The PH fixtures were designed as a rational lighting system where the size of the shade, its material, and its surfaces could be combined mutually according to the nature of the assignment. Each top shade size had a corresponding set of middle and bottom shades such that the proportions between the shades were roughly 3:2:1. One of the basic models right from the beginning was a PH 5/5. The first digit in the fraction indicating the top shade?s approximate diameter, and the digit after the slash indicating that middle and bottom shades where ?born? to this particular top shade. This means that the 5/5 had a top shade with a diameter of 50 cm, 31 cm diameter middle shade and a 16.5 cm bottom shade. This combination was good when the fixture was to be hung up high, but when the pendants were hung lower it was more suitable with a combination of a large top shade and smaller middle and bottom shades. This is how the PH 2/1 or 3/2 was born.The PH3-shade system started out as a pendant solution but very quickly it also developed into other kinds of fixtures for tables, floors, walls and a great number of different chandeliers. As a result of using different sizes, materials, surfaces, colors and light s |
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Louis Poulsen PH 4+-3+ -T 1 Light Table Lamp in Chrome - PH 4+-3+ -T $3246 PH 4+-3+ Glass Table is a member of the PH 3-shade family, and the principle behind the PH 3-shade fixture was made in a few hectic months in the winter of 1925-26 for a large exhibition hall in Copenhagen, Denmark called ?Forum?. This is what PH said about his new fixture in 1926:?The real innovation in the PH-fixture is that it produces lighting which is both glare free and economical. It is easy enough to create glare-free light (indirect and strongly shaded light) if a portion of the light is allowed to be wasted, and it is equally easy to make fixtures which are highly efficient if you ignore the fact that they severely irritate the eye (strong specular reflection, etc.) but it is an art to make light both economical and glare free.?Before the development of the 3-shade fixture, Poul Henningsen and Louis Poulsen had been working together on designing the fixtures for the Danish Pavilion at the World Expo in Paris, France in 1925.When Poul Henningsen designed the fixtures for the World Expo, he had already been playing with the idea that the logarithmic spiral was perhaps a suitable basis for a new shade structure.The combination of diffused reflection and a logarithmic shade curve also gave PH the opportunity to control the fixture?s glare and shading, as each shade would evenly decrease the amount of light emitted according to their distance from the bulb. The luminance transitions from shade to shade would also appear harmonic. The relative size of the shades and their positioning was determined by the need to reduce glare - the light disposition on the shades and the light distribution demands - according to some remarkably simple principles.From the beginning it was obvious that the concept was extremely flexible. Not only was it possible to get it in many different sizes, but also with different undersides - either a white painted surface, a silver-plated or gold-plated surface. These different undersides were in order to achieve different lighting properties. PH envisioned that in a restaurant you would want the light to be warm and cozy and therefore you would use a gold-plated surface, as opposed to being in a hospital or dentist office where you would use the white painted surface. The first fixtures were all made with metal shades, but PH also wanted to develop a variant of the fixture, which would show a light distribution curve with less downward lighting. The result was shades made in opal glass with a sandblasted underside. The glass shades allowed 12% of the light to penetrate and contribute to the overall lighting of the room while most of the light was still reflected outward and downward from the matte undersides of the shades. The same principles which governed the matte metal shades governed this new shade material.The PH fixtures were designed as a rational lighting system where the size of the shade, its material, and its surfaces could be combined mutually according to the nature of the assignment. Each top shade size had a corresponding set of middle and bottom shades such that the proportions between the shades were roughly 3:2:1. One of the basic models right from the beginning was a PH 5/5. The first digit in the fraction indicating the top shade?s approximate diameter, and the digit after the slash indicating that middle and bottom shades where ?born? to this particular top shade. This means that the 5/5 had a top shade with a diameter of 50 cm, 31 cm diameter middle shade and a 16.5 cm bottom shade. This combination was good when the fixture was to be hung up high, but when the pendants were hung lower it was more suitable with a combination of a large top shade and smaller middle and bottom shades. This is how the PH 2/1 or 3/2 was born.The PH3-shade system started out as a pendant solution but very quickly it also developed into other kinds of fixtures for tables, floors, walls and a great number of different chandeliers. As a result of using different sizes, materials, surfaces, colors and |
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Louis Poulsen PH 4+-3+-F 1 Light Floor Lamp in Chrome - PH 4+-3+-F $3476 PH 4+-3+ Glass Floor is a member of the PH 3-shade family, and the principle behind the PH 3-shade fixture was made in a few hectic months in the winter of 1925-26 for a large exhibition hall in Copenhagen, Denmark called ?Forum?. This is what PH said about his new fixture in 1926:?The real innovation in the PH-fixture is that it produces lighting which is both glare free and economical. It is easy enough to create glare-free light (indirect and strongly shaded light) if a portion of the light is allowed to be wasted, and it is equally easy to make fixtures which are highly efficient if you ignore the fact that they severely irritate the eye (strong specular reflection, etc.) but it is an art to make light both economical and glare free.?Before the development of the 3-shade fixture, Poul Henningsen and Louis Poulsen had been working together on designing the fixtures for the Danish Pavilion at the World Expo in Paris, France in 1925.When Poul Henningsen designed the fixtures for the World Expo, he had already been playing with the idea that the logarithmic spiral was perhaps a suitable basis for a new shade structure.The combination of diffused reflection and a logarithmic shade curve also gave PH the opportunity to control the fixture?s glare and shading, as each shade would evenly decrease the amount of light emitted according to their distance from the bulb. The luminance transitions from shade to shade would also appear harmonic. The relative size of the shades and their positioning was determined by the need to reduce glare - the light disposition on the shades and the light distribution demands - according to some remarkably simple principles.From the beginning it was obvious that the concept was extremely flexible. Not only was it possible to get it in many different sizes, but also with different undersides - either a white painted surface, a silver-plated or gold-plated surface. These different undersides were in order to achieve different lighting properties. PH envisioned that in a restaurant you would want the light to be warm and cozy and therefore you would use a gold-plated surface, as opposed to being in a hospital or dentist office where you would use the white painted surface.The first fixtures were all made with metal shades, but PH also wanted to develop a variant of the fixture, which would show a light distribution curve with less downward lighting. The result was shades made in opal glass with a sandblasted underside. The glass shades allowed 12% of the light to penetrate and contribute to the overall lighting of the room while most of the light was still reflected outward and downward from the matte undersides of the shades. The same principles which governed the matte metal shades governed this new shade material.The PH fixtures were designed as a rational lighting system where the size of the shade, its material, and its surfaces could be combined mutually according to the nature of the assignment. Each top shade size had a corresponding set of middle and bottom shades such that the proportions between the shades were roughly 3:2:1. One of the basic models right from the beginning was a PH 5/5. The first digit in the fraction indicating the top shade?s approximate diameter, and the digit after the slash indicating that middle and bottom shades where ?born? to this particular top shade. This means that the 5/5 had a top shade with a diameter of 50 cm, 31 cm diameter middle shade and a 16.5 cm bottom shade. This combination was good when the fixture was to be hung up high, but when the pendants were hung lower it was more suitable with a combination of a large top shade and smaller middle and bottom shades. This is how the PH 2/1 or 3/2 was born.The PH3-shade system started out as a pendant solution but very quickly it also developed into other kinds of fixtures for tables, floors, walls and a great number of different chandeliers. As a result of using different sizes, materials, surfaces, colors and l |
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Louis Poulsen PH2/1-P 1 Light Pendant in Chrome - PH2/1-P $556 PH 2/1 Pendant is a member of the PH 3-shade family, and the principle behind the PH 3-shade fixture was made in a few hectic months in the winter of 1925-26 for a large exhibition hall in Copenhagen, Denmark called ?Forum?. This is what PH said about his new fixture in 1926: ?The real innovation in the PH-fixture is that it produces lighting which is both glare free and economical. It is easy enough to create glare-free light (indirect and strongly shaded light) if a portion of the light is allowed to be wasted, and it is equally easy to make fixtures which are highly efficient if you ignore the fact that they severely irritate the eye (strong specular reflection, etc.) but it is an art to make light both economical and glare free.? Before the development of the 3-shade fixture, Poul Henningsen and Louis Poulsen had been working together on designing the fixtures for the Danish Pavilion at the World Expo in Paris, France in 1925. When Poul Henningsen designed the fixtures for the World Expo, he had already been playing with the idea that the logarithmic spiral was perhaps a suitable basis for a new shade structure. The combination of diffused reflection and a logarithmic shade curve also gave PH the opportunity to control the fixture?s glare and shading, as each shade would evenly decrease the amount of light emitted according to their distance from the bulb. The luminance transitions from shade to shade would also appear harmonic. The relative size of the shades and their positioning was determined by the need to reduce glare - the light disposition on the shades and the light distribution demands - according to some remarkably simple principles. From the beginning it was obvious that the concept was extremely flexible. Not only was it possible to get it in many different sizes, but also with different undersides - either a white painted surface, a silver-plated or gold-plated surface. These different undersides were in order to achieve different lighting properties. PH envisioned that in a restaurant you would want the light to be warm and cozy and therefore you would use a gold-plated surface, as opposed to being in a hospital or dentist office where you would use the white painted surface. The first fixtures were all made with metal shades, but PH also wanted to develop a variant of the fixture, which would show a light distribution curve with less downward lighting. The result was shades made in opal glass with a sandblasted underside. The glass shades allowed 12% of the light to penetrate and contribute to the overall lighting of the room while most of the light was still reflected outward and downward from the matte undersides of the shades. The same principles which governed the matte metal shades governed this new shade material. The PH fixtures were designed as a rational lighting system where the size of the shade, its material, and its surfaces could be combined mutually according to the nature of the assignment. Each top shade size had a corresponding set of middle and bottom shades such that the proportions between the shades were roughly 3:2:1. One of the basic models right from the beginning was a PH 5/5. The first digit in the fraction indicating the top shade?s approximate diameter, and the digit after the slash indicating that middle and bottom shades where ?born? to this particular top shade. This means that the 5/5 had a top shade with a diameter of 50 cm, 31 cm diameter middle shade and a 16.5 cm bottom shade. This combination was good when the fixture was to be hung up high, but when the pendants were hung lower it was more suitable with a combination of a large top shade and smaller middle and bottom shades. This is how the PH 2/1 or 3/2 was born. The PH3-shade system started out as a pendant solution but very quickly it also developed into other kinds of fixtures for tables, floors, walls and a great number of different chandeliers. As a result of using different sizes, materials, surfaces, colors and |
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Louis Poulsen PH3-2+B 1 Light Bollard in Black - PH3-2+B $1140 PH 3-2+ Bollard is a member of the PH 3-shade family, and the principle behind the PH 3-shade fixture was made in a few hectic months in the winter of 1925-26 for a large exhibition hall in Copenhagen, Denmark called ?Forum?. This is what PH said about his new fixture in 1926:?The real innovation in the PH-fixture is that it produces lighting which is both glare free and economical. It is easy enough to create glare-free light (indirect and strongly shaded light) if a portion of the light is allowed to be wasted, and it is equally easy to make fixtures which are highly efficient if you ignore the fact that they severely irritate the eye (strong specular reflection, etc.) but it is an art to make light both economical and glare free.?Before the development of the 3-shade fixture, Poul Henningsen and Louis Poulsen had been working together on designing the fixtures for the Danish Pavilion at the World Expo in Paris, France in 1925.When Poul Henningsen designed the fixtures for the World Expo, he had already been playing with the idea that the logarithmic spiral was perhaps a suitable basis for a new shade structure.The combination of diffused reflection and a logarithmic shade curve also gave PH the opportunity to control the fixture?s glare and shading, as each shade would evenly decrease the amount of light emitted according to their distance from the bulb. The luminance transitions from shade to shade would also appear harmonic. The relative size of the shades and their positioning was determined by the need to reduce glare - the light disposition on the shades and the light distribution demands - according to some remarkably simple principles.From the beginning it was obvious that the concept was extremely flexible. Not only was it possible to get it in many different sizes, but also with different undersides - either a white painted surface, a silver-plated or gold-plated surface. These different undersides were in order to achieve different lighting properties. PH envisioned that in a restaurant you would want the light to be warm and cozy and therefore you would use a gold-plated surface, as opposed to being in a hospital or dentist office where you would use the white painted surface.The first fixtures were all made with metal shades, but PH also wanted to develop a variant of the fixture, which would show a light distribution curve with less downward lighting. The result was shades made in opal glass with a sandblasted underside. The glass shades allowed 12% of the light to penetrate and contribute to the overall lighting of the room while most of the light was still reflected outward and downward from the matte undersides of the shades. The same principles which governed the matte metal shades governed this new shade material.The PH fixtures were designed as a rational lighting system where the size of the shade, its material, and its surfaces could be combined mutually according to the nature of the assignment. Each top shade size had a corresponding set of middle and bottom shades such that the proportions between the shades were roughly 3:2:1. One of the basic models right from the beginning was a PH 5/5. The first digit in the fraction indicating the top shade?s approximate diameter, and the digit after the slash indicating that middle and bottom shades where ?born? to this particular top shade. This means that the 5/5 had a top shade with a diameter of 50 cm, 31 cm diameter middle shade and a 16.5 cm bottom shade. This combination was good when the fixture was to be hung up high, but when the pendants were hung lower it was more suitable with a combination of a large top shade and smaller middle and bottom shades. This is how the PH 2/1 or 3/2 was born.The PH3-shade system started out as a pendant solution but very quickly it also developed into other kinds of fixtures for tables, floors, walls and a great number of different chandeliers. As a result of using different sizes, materials, surfaces, colors and light |
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