A lighting device comprising first and second groups of solid state light emitters, which emit light having peak wavelength in ranges of from 430 nm to 480 nm, and first and second groups of lumiphors which emit light having dominant wavelength in the range of from 555 nm to 585 nm. In some embodiments, if current is supplied to a power line, a combination of (1) light exiting the lighting device which was emitted by the first group of emitters, and (2) light exiting the lighting device which was emitted by the first group of lumiphors would have a correlated color temperature which differs by at least 50 K from a correlated color temperature which would be emitted by a combination of (3) light exiting the lighting device which was emitted by the second group of emitters, and (4) light exiting the lighting device which was emitted by the second group of lumiphors.

Lighting device and lighting method

A multi-chip lighting emitting device (LED) lamp for providing white light includes a submount including first and second die mounting regions thereon. A first LED chip is mounted on the first die mounting region, and a second LED chip is mounted on the second die mounting region. The LED lamp is configured to emit light having a spectral distribution including at least four different color peaks to provide the white light. For example, a first conversion material may at least partially cover the first LED chip, and may be configured to absorb at least some of the light of the first color and re-emit light of a third color. In addition, a second conversion material may at least partially cover the first and/or second LED chips, and may be configured to absorb at least some of the light of the first and/or second colors and re-emit light of a fourth color. Related light fixtures and methods are also disclosed.

Multi-chip light emitting device lamps for providing high-CRI warm white light and light fixtures including the same

A white light emitting lamp is disclosed comprising a solid state ultra violet (UV) emitter that emits light in the UV wavelength spectrum. A conversion material is arranged to absorb at least some of the light emitting from the UV emitter and re-emit light at one or more different wavelengths of light. One or more complimentary solid state emitters are included that emit at different wavelengths of light than the UV emitter and the conversion material. The lamp emits a white light combination of light emitted from the complimentary emitters and from the conversion material, with the white light having high efficacy and good color rendering. Other embodiments of white light emitting lamp according to the present invention comprises a solid state laser instead of a UV emitter. A high flux white emitting lamp embodiment according to the invention comprises a large area light emitting diode (LED) that emits light at a first wavelength spectrum and includes a conversion material. A plurality of complimentary solid state emitters surround the large area LED, with each emitter emitting light in a spectrum different from the large area LED and conversion material such that the lamp emits a balanced white light. Scattering particles can be included in each of the embodiments to scatter the light from the emitters, conversion material and complimentary emitters to provide a more uniform emission.

Multiple component solid state white light

A lighting device comprises a solid state light emitter, first and second electrodes connected to the emitter, an encapsulant region comprising a silicone compound and a supporting region. The encapsulant region extends to an external surface of the lighting device. At least a portion of the first electrode is surrounded by the supporting region. The encapsulant region and the supporting region together define an outer surface which substantially encompasses the emitter. A method of making a lighting device, comprises electrically connecting first and second electrodes to an emitter; inserting the emitter into mold cavity; inserting an encapsulant composition comprising a one silicone compound; and then inserting a second composition to substantially surround at least a portion of the first electrode.

Lighting device and method of making

There is provided a lighting device which emits light with an efficacy of at least 60 lumens per watt. The lighting device comprises at least one solid state light emitter (16), e.g, one or more light emitting diodes, and optionally further includes one or more lumiphor (35). In some embodiments, the output light is of a brightness of at least 300 lumens. In some embodiments, the output light has a CRI Ra of at least 90. Also, a method of lighting, comprising supplying electricity to a lighting device which emits light with an efficacy of at least 60 lumens per watt.

Lighting device and method of lighting

An ink jet printer has: a vibration detection section to receive ink jetted from the nozzles and output a detection signal having an amplitude corresponding to a vibration generated when the ink lands; a sampling section to sample an amplitude value of the detection signal by a predetermined sampling clock signal; a storing section to store an amplitude value data of the detection signal sampled by the sampling section; a judging section to judge a jet failure of the nozzles based on the amplitude value data of the detection signal in the storing section; and a control section to control to jet the ink continuously a plurality of times with a jet drive cycle which is set by multiplying a standard drive waveform time of an ink jet signal from the nozzles by an odd number not less than five when detecting a jet failure of the nozzles.

Ink jet printer

PURPOSE:To prevent the scratch and deformation of the surface of a roller, caused by a nozzle part passing through the rollers at the time of loading a magazine, by constituting the titled device so that the roller escapes in accordance with the entry of a recording paper outlet which is inserted between pressure welding parts of upper and lower paper feed rollers CONSTITUTION:In case of loading a magazine 8 to its loading part 9, when its nozzle part 8a is inserted into a body from an inserting hole 10 as shown by an alternate long and two short dashes line, the tip of its nozzle 8a hits against a crossover part K where rotary rings 40, 40' pass each other, therefore, when it is further pressed in, the rotary rings 40, 40' are expanded and opened to the outside, and run onto the upper and lower face of the nozzle part 8a Accordingly, when the nozzle part 8b is made to go in as it is, the rotary rings 40, 40' are dropped and fitted into a notch hole 8b In this case, roller simple substances 13, 13' whose diameter is smaller than that of the rotary rings 40, 40' escape as the nozzle part 8a goes in, and they are expanded and opened without contacting the nozzle part 8a at all

Image recording device

PROBLEM TO BE SOLVED: To provide an ink jet recording device capable of suppressing curl of a recording paper sheet and minimizing accidental contact of a recording surface after recording even when an interval between guide members faced for forming a conveying passage is small. SOLUTION: The ink jet recording device performs recording onto the recording paper sheet by delivering ink drop from a nozzle disposed in a recording head. A plurality of air delivery ports are formed in one guide member forming the conveying passage of the recording paper sheet after recording and positioned on the recording surface side of the recording paper sheet, and the guide member is communicated with a blowing means via an air duct. At least while the recording paper sheet after the recording moves in a region having the guide member, a controlling means controls the blowing means to be driven. COPYRIGHT: (C)2004,JPO

Ink jet recording device

PROBLEM TO BE SOLVED: To provide an inkjet recording apparatus capable of efficiently cleaning a preliminarily discharged ink on an intermediate transfer medium, and stably forming an image. SOLUTION: The inkjet recording apparatus is equipped with a line type printing head provided with at least an ink discharging hole, the intermediate transfer medium, a pressing roller pressing a recording medium on the intermediate transfer medium to transfer the ink, and a cleaning member coming into contact with the surface of the intermediate transfer medium to clean the ink, and after the ink is discharged on the surface of the intermediate transfer medium from the line type printing head, the ink is transferred on the recording medium by the pressing roller. The inkjet recording apparatus is characterized by having a controlling means for controlling so that the preliminarily discharged ink on the intermediate transfer medium passes through a transfer region while the recording medium does not exist in the transfer region, and the pressing roller is separated from the intermediate transfer medium. COPYRIGHT: (C)2005,JPO&NCIPI

Inkjet recording apparatus

PROBLEM TO BE SOLVED: To provide an inkjet recording device which is configured to reduce clogging of nozzles, and discharge failures such as impact failures of ink droplets, by preventing a viscosity increase of ink within the nozzles at the time of capping, and inclusion of bubbles and dust SOLUTION: The inkjet recording device includes a printing head for carrying out recording by discharging ink from the nozzles to a recording medium, a capping means for covering a nozzle face where ink discharge openings of the nozzles are formed, and a capping sensor for detecting whether or not the nozzle face is covered by the capping means The inkjet recording device has a predischarge control means When the capping sensor detects that the capping means is in the middle of capping, the predischarge control means controls so that the ink is predischarged while the capping state is maintained every time a capping time exceeds a predetermined time COPYRIGHT: (C)2004,JPO&NCIPI

Hamada Shuta

Papers

Ink jet printer

Image recording device

Ink jet recording device

Inkjet recording apparatus

Inkjet recording device