936results about "Spectral modifiers" patented technology

The present technology relates to a lighting control device that enables effective use of a roof light disposed along the outer periphery of a roof window of the vehicle, a lighting control method, and a vehicle. A lighting control device includes a light control unit that controls a roof light disposed along the outer periphery of a roof window of a vehicle, on the basis of at least one of a state of the vehicle, a situation around the vehicle, a situation inside the vehicle, or an operation on the vehicle. The present technology can be applied to a vehicle that has a roof window, for example.

An illumination device includes: a light source part emitting light; a light distribution shape setter setting a light distribution shape of light from the light source part; a storage storing therein light distribution shape data related to the light distribution shape; and a controller controlling the light distribution shape setter based on the light distribution shape data. Further, the light distribution shape setter sets the light distribution shape based on a signal level input from the controller, and when changing the signal level input to the light distribution shape setter from a first level to a second level, the controller changes the signal level from the first level to a third level that is a level between the first level and the second level, and changes the signal level from the third level to the second level after maintaining the third level for a predetermined time period.

The invention discloses an illumination device, an illumination adjusting method and wafer detection equipment. The device comprises an illumination light source, an illumination adjusting device and a wafer detection device, wherein the illumination light source comprises a light-emitting surface for exporting illumination light to the outside; the light-emitting surface adjusting part is used for adjusting the position of the light-emitting surface; the objective lens group comprises a plurality of objective lenses which are different in multiplying power and can be mutually switched, calibration data are pre-stored in the controller and comprise pupil plane size information, pupil plane position information and light-emitting surface position information of the objective lenses different in multiplying power, and the controller is used for adjusting the position of the light-emitting surface by the light-emitting surface adjusting part according to the multiplying power information of the objective lenses and the calibration data. According to the invention, rapid and automatic matching between the illumination system and pupil planes of objective lenses with different multiplying powers is realized, and uneven illumination and stray light caused by mismatching of the pupil planes are effectively eliminated.

Provides is an ultra-microlight transmission device using secondary electrons according to various embodiments of the present invention for implementing the above-objects. The ultra-microlight transmission device includes a light source module configured to generate light, a housing which includes an interior space and performs spectroscopy and diffuse reflection on light introduced into the interior space, a first filter unit configured to convert the spectroscopic and diffusely reflected light into monochromatic light, and a second filter unit configured to cause diffraction and interference for the converted light.

The invention discloses a small-size wavelength conversion device and a light source device thereof, and belongs to the technical field of optical illumination. The wavelength conversion device can convert most of the exciting light with the first polarization state into excited light and change the polarization state of the remaining exciting light. The light source device comprises the wavelength conversion device, an excitation light source, a dichroscope, a shaping lens group and a reflector. Light splitting and light combination are performed through the dichroscope based on the polarization state and the wavelength, and the unused exciting light is returned to the wavelength conversion device for recycling by using the reflector, so that an independent blue light processing light path is canceled. The size of the light source is effectively reduced, the cost is reduced, and the light source is easier to adapt to an existing stage lamp structure.

The invention provides a light generating system comprising one or more light generating devices, a luminescent material, a diffuser element, a polarization changing element, central optics, and a control system, wherein: (A) the one or more light generating devices are configured to generate device light; wherein the one or more light generating devices comprise light sources selected from a laser diode and a superluminescent diode; wherein the device light received by the central optics comprises a controllable polarization; (B) the luminescent material is configured to convert at least part of the device light received by the luminescent material into luminescent material light; (C) the diffuser element is configured to diffuse at least part of the device light received by the diffuser element thereby providing diffused device light while maintaining at least part of the polarization; (D) the polarization changing element is configured in an optical path of the device light between the central optics and the diffuser element; (E) the central optics comprises (i) a central optics polarizing beam splitter, and (ii) a central optics dichroic beam splitter; wherein the central optics are configured to transmit and / or reflect device light, diffused device light, and luminescent material light, received by the central optics in dependence of one or more of their polarizations and their spectral power distributions; (F) the control system is configured to control the polarization of the device light received by the central optics; (G) the light generating system is configured to provide system light comprising one or more of diffused device light and luminescent material light; and wherein the light generating system is configured such that in a first operational mode of the light generating system (a) at least part of the device light irradiates the luminescent material via the central optics, and the luminescent material light escapes from the light generating system via the central optics, and (b) at least part of the device light irradiates the diffuser element via the central optics, and at least part of the diffused device light escapes from the light generating system via the central optics.

The starry sky projection lamp comprises an upper shell, a lower shell and an adjusting assembly, and the upper shell is provided with a first light outlet, a second light outlet and a third light outlet; a mounting cavity is defined between the upper shell and the lower shell, a controller, a battery, a nebula lamp assembly, a star lamp assembly and a moon-shaped lamp assembly are arranged in the mounting cavity, the nebula lamp assembly is used for emitting water-wave-shaped light, the star lamp assembly is used for emitting star-shaped light, and the moon-shaped lamp assembly is used for emitting moon-shaped light; the adjusting assembly comprises a base, a magnet and an iron ball, the magnet is fixedly arranged at the bottom of the lower shell, a conical hole is formed in the lower end of the magnet, the diameter of the conical hole is gradually reduced in the axial direction of the magnet towards the direction close to the lower shell, the iron ball is arranged at the upper end of the base and movably connected to the conical hole, and the magnet can attract the iron ball. Therefore, the lower shell can be fixed in a universal rotation manner. The projection angle and direction can be adjusted according to needs, so that the user experience is improved.

The invention discloses a preparation method of a low-blue-light LED panel lamp, and belongs to the technical field of LED illumination. According to the method, through blue light chip screening, composite fluorescent powder system optimization, multi-layer optical structure design and heat dissipation coordinated regulation and control, the radiation power proportion of the blue light wave band (430-460 nm) is smaller than or equal to 5%, meanwhile, it is guaranteed that the color rendering index Ra is larger than or equal to 85, and the lighting effect is larger than or equal to 100 lm / W. The core innovation of the LED lamp is that the double-effect eye protection layer of quantum dot doped silica gel and cerium yttrium aluminum garnet composite fluorescent powder is adopted, and the optical matching design of the micro-nano texture light guide plate and the gradual change type diffusion film is combined, so that the technical problems that an existing low-blue-light LED lamp is low in lighting effect, poor in color rendering property, uneven in blue light filtering and the like are solved. The blue light hazard level of the prepared LED panel lamp reaches RG0 level, and the LED panel lamp is suitable for long-time close-range illumination scenes such as classrooms, offices and bedrooms and has wide application prospects.

The invention provides a method for operating an automotive lighting device (1) comprising at least one solid-state light source. This method comprising the steps of defining a colour allowance condition (6), feeding the light source with a current value (41) which produces a luminous flux value higher than a minimum luminous flux threshold value (4), measuring the temperature in the light source, checking whether the output colour satisfies the allowance condition (6) and increasing or decreasing the current value, always keeping the current such as it produces an acceptable colour. The last step includes perform a pulse width modulation of the current value to keep an average value of the current which produces a luminous flux value higher than the minimum luminous flux threshold value (4). The invention also provides an automotive lighting device (1) comprising a control element (3) to carry out the steps of this method.

An illuminator to provide a collimated beam of light is disclosed. The illuminator includes light source modules. Each of the light source module includes a light source to emit a light, an optical lens to collect and direct the light from the light source and to output the light along a path, a color filter disposed adjacent to the optical lens and in the path of the light, in which the color filter produce a filtered light, and a collimator lens to collect and direct the associated filtered light. The collimator lenses of the light source modules direct and output each of associated filtered lights into a major collimated light beam along a major optical axis.

The utility model relates to the technical field of breeding lamps, in particular to a laying hen breeding lamp which comprises a lamp body, the lamp body is screwed on a mounting seat and supplies power, and a control module is arranged in the mounting seat to adjust the brightness of the lamp body; a lifting ring is arranged at the top of the mounting base and connected with a lifting device through a lifting rope, the lifting device comprises a pulley fixedly arranged on the top of the wall and a rocking wheel fixedly arranged on the wall, and the lifting rope surrounds the pulley and is connected to the rocking wheel. Furthermore, the primary color lens and the lamp body used for a long time are replaced, and high-altitude operation is not needed; a lampshade is arranged on the outer side of the lamp body, a clamping groove is formed in the inner side of the front end of the lampshade, and a primary color lens is clamped in the clamping groove, so that the breeding lamp emits light of different colors, and the primary color lens can be replaced to adapt to illumination colors required by laying hens in different growth periods.

The utility model relates to the field of solar lamps, and discloses an automatic dimming device of a solar lamp, which comprises a shell, an LED lamp bead is fixedly connected to the top of the inner wall of the shell, a dimming mechanism is arranged in the shell and comprises a fixed plate and a movable plate, the fixed plate is fixedly connected to the inner wall of the shell, and the movable plate is fixedly connected to the inner wall of the shell. A fixed light hole is formed in the surface of the fixed plate, the movable plate is slidably connected to the inner wall of the shell, a first variable light hole and a second variable light hole are formed in the surface of the movable plate, and a positioning mechanism rod is arranged in the movable plate. According to the utility model, different light holes can be selected to be aligned with the fixed light holes by moving the movable plate, so that the light passing area is changed to adjust the brightness of the lamp, the positioning rod is clamped into the positioning hole in the inner wall of the shell, and the position of the movable plate is fixed through friction force, so that the stable dimming arrangement and no complicated electronic element arrangement are ensured; and the fault rate and the maintenance cost are reduced.

The invention relates to an emergency lighting element (1) comprising a planar, electrically operated radiation source (2) for the planar emission of electromagnetic radiation from its front surface (3). A long-lasting phosphor layer (10) is provided over the entire surface of the front surface (3) of the radiation source (2). The radiation source (2) is designed to emit electromagnetic radiation in the visible range, and the long-lasting phosphor layer (10) is designed to partially transmit the radiation, wherein the emission of the radiation source (2) and the transmission of the long-lasting phosphor layer (10) are coordinated such that the emission of electromagnetic radiation in the visible range by the emergency lighting element (1) is at least 50% higher when the radiation source (2) is switched on than when the radiation source (2) is switched off.

This application relates to a wavelength-tunable luminaire, belonging to the field of lighting equipment technology. It includes: a light source module; a filter element disposed in the optical output direction of the light source module to change the spectral characteristics of the output light; a heat sink for mounting the light source module and providing a heat dissipation channel; and a protective housing detachably connected to the heat sink for encapsulating the light source module and the filter element and providing explosion-proof protection. The filter element is installed within the heat sink via a detachable connection structure. This application, through its detachable connection structure, allows for easy installation and replacement of the filter element without replacing the entire luminaire, reducing replacement costs and avoiding resource waste. Users can adjust the lighting wavelength according to different environments, improving the adaptability and functionality of the explosion-proof luminaire. Furthermore, the protective housing ensures the safe encapsulation of the light source module and the filter element, maintaining explosion-proof performance, making it suitable for flammable and explosive environments.

The application discloses an optical device, a laser lighting device and a vehicle, and belongs to the technical field of lasers, and comprises a fluorescent powder sheet, a reflector and a lens; the fluorescent powder sheet, the reflector and the lens are coaxially arranged along a transmission direction of a laser beam; a side of the lens facing the fluorescent powder sheet is provided with a groove, the reflector is arranged at the bottom of the groove, and the fluorescent powder sheet is arranged at a notch position of the groove; the direction of a light-receiving surface of the fluorescent powder sheet and the direction of a light-reflecting surface of the reflector are opposite to the transmission direction of the laser beam; the fluorescent powder sheet is used for emitting excited light under irradiation of the laser beam; the reflector is used for reflecting the laser beam or the excited light through the light-reflecting surface; and the lens is used for changing the direction of the excited light to form a high-beam lighting spot or a low-beam lighting spot. When the fluorescent powder sheet is broken or falls off, the laser beam is directly irradiated on the light-reflecting surface of the reflector, direct irradiation of the laser beam out of the lens to cause harm to human eyes can be avoided, and the use safety of the optical device is improved.

A wavelength conversion module includes: a phosphor member; and a light-transmissive substrate that is directly bonded to the phosphor member, wherein a higher thermal conductivity of the light-transmissive substrate is higher than a thermal conductivity of the phosphor member, and the light-transmissive substrate has a thickness in a range from 100 μm to 600 μm.

The present invention provides a light source device and method that utilizes a parallel optical module including an axicon lens to efficiently collect diverging light, collimate it, and adjust the wavelength of the desired light to pass through. A tunable wavelength light source device according to one embodiment of the present invention includes a diffused light source that irradiates diffused light, a parallel light module that collimates the light irradiated from the diffused light source, the parallel light module including an axicon lens, an angle-adjustable bandpass filter module that passes light that has passed through the parallel light module and selects a specific wavelength of the light, and a mixing module that corrects an error in wavelength that is determined by the angle of incidence of light that passes through the angle-adjustable bandpass filter module.

A light generator (1) comprising: - an optoelectronic device (11) configured to produce a first monochromatic beam (R1) so as to generate light (L1) at a first wavelength (λ1), - a phosphor layer (12) offset from said optoelectronic device (11) and configured to convert all or part of the first monochromatic beam (R1) into a second beam (R2) so as to obtain converted light (L2) at one or more second, higher wavelengths (λ2) and to diffuse it, characterized in that it comprises: - a first dichroic filter (13) configured to transmit the light (L1) emanating from the first monochromatic beam (R1) towards the phosphor layer (12) and to reflect the converted light (L2) by the phosphor layer (12), - a protective layer (15) disposed opposite the phosphor layer (12) on the side opposite the first filter Dichroic (13). Figure for the abstract: figure 1

The utility model provides a kind of instrument display structure and electric vehicle, it is related to traffic vehicle technical field, the utility model provides instrument display structure including instrument cover shell, light filter and light source component, light filter and light source component are installed in instrument cover shell;Instrument cover shell has display area, light filter is located between display area and light source component, and one side of light filter is connected with light source component, and other side is bonded with the inner wall of display area.The utility model provides instrument display structure can optimize light transmission effect, effectively alleviate the problem that traditional instrument is caused by light scattering and leads to display blur, uneven brightness, significantly enhance the definition of text and image.

This invention discloses a closed-loop optical architecture for suppressing stray light at the source of a light source, relating to the field of lighting optics design technology. The invention includes a light-emitting source and a mounting substrate, with an enclosing structure matched to the outer periphery near the light source. A continuous light-absorbing surface is formed on the inner side of the enclosing structure, corresponding to the lateral stray light overflow path of the light source, used to constrain lateral diffuse light and stray light overflow. A forward light-emitting opening is reserved at the top of the enclosing structure to avoid obstruction of the main axial light path of the light source and maintain the integrity of the forward light-emitting path. The enclosing structure adopts a double-layer composite structure, realizing lateral light absorption and structural shaping functions respectively, and can adapt to various light source arrangements such as point light sources, linear strip light sources, and multi-light source combination modules. This invention, through the bottom-layer optical path structure design of near-end enclosing light control, achieves source suppression of stray light and glare without attenuating forward light emission.

The invention provides a light generating system (1000) configured to generate system light (1001), wherein the light generating system (1000) comprises a first light generating device (110), wherein: (A) the first light generating device (110) comprises a first light source (10) and a first luminescent converter (210); (B) the first light source (10) comprises a solid state light source, wherein the first light source (10) is configured to generate first light source light (11) having a first light source centroid wavelength (λs,1) selected from the range of 380-420 nm; (C) the first luminescent converter (210) is configured to convert at least part of the first light source light (11) into first converter light (211) having a first converter centroid wavelength (λc,1) selected from the green-yellow wavelength range; (D) the first light generating device (110) is configured to generate first device light (111) having a spectral power distribution in the wavelength range of 380-780 nm with at least 60% of the spectral power provided by the first light source light (11) and at maximum 40% of the spectral power provided by the first converter light (211).

This invention provides an image forming module and projector that can achieve a desired color balance while suppressing the complexity of control. [Solution] The image forming module of the present invention comprises a first light source that emits first light, a second light source that emits second light, a first illumination optical system that generates first illumination light from the first light, a second illumination optical system that generates second illumination light from the second light, a first light modulator that modulates the first illumination light, a second light modulator that modulates the second illumination light, a photosynthesis element, and a control device. The first illumination optical system has a first light guide element that homogenizes the first light and a first parallelizing element that parallelizes the first light. The second illumination optical system has a second light guide element that homogenizes the second light and a second parallelizing element that parallelizes the second light. The control device applies the same current value to the first light source and the second light source, and the light utilization efficiencies of the first illumination optical system and the second illumination optical system are different so that the synthesized light has a desired color balance.

To provide a technique for improving light emission intensity for a wavelength conversion member.SOLUTION: A wavelength conversion member comprises a ceramic phosphor which converts the wavelength of incident light, and a reflection film arranged on the ceramic phosphor and including metal reflecting light. The reflection film includes particles formed of a material having a higher fusion point than the metal of the reflection film, and in at least one of particle-containing cross sections as a cross section of the reflection film including cross-sections of particles, the value obtained by dividing a cross-sectional area of a particles by the square of a circumferential length of the particle is 0.02 or larger.SELECTED DRAWING: Figure 1

The application discloses a vehicle lamp module and a lighting system. The vehicle lamp module comprises a base, a reflection assembly, a wavelength conversion piece, a light guide piece and a driving assembly. The wavelength conversion piece is arranged on the base. The wavelength conversion piece generates specified fluorescence under the excitation of specified laser. The specified fluorescence is reflected to a light outlet via the reflection assembly. The light guide piece is arranged on a light path where the specified laser is located, and is used for guiding the specified laser to the wavelength conversion piece. The driving assembly is in transmission connection with a laser joint. The driving assembly is used for controlling the rotation of the laser joint, so as to adjust the angle of the specified laser incident to the wavelength conversion piece. In the application, the vehicle lamp module adopts laser as a lighting light source and is connected with a fiber joint. In the case of improving the lighting brightness, the structure separation between the vehicle lamp module and the laser module is realized, and the miniaturization design of the vehicle lamp module is facilitated.

Phosphor ink compositions and systems and methods for depositing such phosphor containing ink are disclosed. An ink composition of in accordance with the present disclosure comprises a phosphor material comprising a Mn4+ doped phosphor of Formula 1 Ax[MFy]:Mn4+ (I) and at least one binder material or solvent, wherein the Mn4+ doped phosphor has a D50 particle size from about 0.5 microns to about 15 microns, and wherein the ink composition has a viscosity from more than 2,000 cP to about 30,000 cP, where A is Li, Na, K, Rb, Cs, or a combination thereof; M is Si, Ge, Sn, Ti, Zr, Al, Ga, In, Sc, Y, La, Nb, Ta, Bi, Gd, or a combination thereof; x is the absolute value of the charge of the [MFy] ion; and y is 5, 6 or 7.

To provide a phosphor wheel unit and a projection type image display device having improved cooling efficiency.SOLUTION: The phosphor wheel unit includes a phosphor wheel configured to emit fluorescent light from incident light, a motor configured to rotationally drive the phosphor wheel, a first heat exchanger having an airflow inlet surface on which a plurality of fins are arranged and into which a part or all of an airflow generated by rotation of the phosphor wheel flows, and a restriction member configured to restrict a direction of the airflow generated by the rotation of the phosphor wheel. On a plane perpendicular to the direction in which the base 107f of the phosphor wheel extends, the angle between the direction of the airflow restricted by the restriction member and the direction perpendicular to the axis of rotation of the phosphor wheel is greater than or equal to 0 degrees but smaller than or equal to 45 degrees. The airflow inlet surface is disposed on the extension of the direction of the airflow restricted by the restriction member, and the gas cooled by the first heat exchanger returns to the phosphor wheel.SELECTED DRAWING: Figure 7

The present disclosure relates to a lighting panel and a vehicle lamp. The lighting panel comprises a light-emitting substrate, a first functional layer, a second functional layer and a cover plate. The light-emitting substrate comprises a plurality of light-emitting devices. The first functional layer is arranged on one side of the light-emitting substrate. The second functional layer is arranged on the side of the first functional layer away from the light-emitting substrate. The refractive index of the second functional layer is higher than that of the first functional layer, and the refractive index of the second functional layer is also higher than that of the cover plate. The lighting panel and the vehicle lamp of the present disclosure can slow down the life attenuation rate of the lighting panel and the vehicle lamp to a certain extent.

The utility model provides a spiral composite type photographic flash lamp, which relates to the technical field of flash lamps and comprises a spiral flash lamp tube, a spiral structure of the spiral flash lamp tube forms a multi-angle light-emitting surface in the axial direction and the radial direction, and the spiral structure enables light rays to be uniformly dispersed all around; the normally-on lamp tube is fixedly arranged at the top of the spiral flash lamp tube and is used for providing continuous modeling light and an indication flash light path and providing continuous illumination and light distribution confirmation before shooting; the bottom of the transparent glass lampshade is hermetically connected with the transparent glass base, and the spiral flash lamp tube and the normally-on lamp tube are accommodated and protected in the transparent glass lampshade; the transparent glass base is provided with an electrode interface and is used for electrically connecting and supporting the spiral flash lamp tube and the normally-on lamp tube and providing a stable mounting basis at the same time, so that the problems of limited light emitting angle and non-uniform light distribution of an existing rod type flash lamp tube are solved; the light emitting depth of the annular flash lamp tube is insufficient, and the coverage range of light in the depth direction is small; and the technical problem of lack of a normally-on auxiliary light function is solved.

To provide a vehicle lighting device that can achieve dynamic lighting effects with a simpler configuration. [Solution] The invention comprises a light guide plate 31 (light-emitting part) having a light-emitting surface 31A that emits light toward the interior of the vehicle, a sheet member 70, and a housing 30 that has an opening 30A (first light-transmitting part) that covers the sheet member 70 from the interior of the vehicle and houses the sheet member 70. The sheet member 70 comprises a sheet body portion 71 that has a through hole 71A (second light-transmitting part) and covers the light-emitting surface 31A from the interior of the vehicle, and an expandable portion 72 that is elastically expandable and contractible in the vertical direction. The sheet body portion 71 is attached to the housing 30 via the expandable portion 72.