29 results about "Dichroic filter" patented technology

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

A beam combining device, enabled to combine a first beam with a second beam of a different spectrum into a combined beam, where the combination may be obtained through a device comprising two antireflective coating, a dichroic filter coating, and a reflective coating arranged on a substrate.

The invention discloses a three-mode six-port assembly which comprises an optical fiber interface, a light emitting assembly, a light receiving assembly and an optical routing system. The optical transmitting assembly comprises a first transmitting assembly, a second transmitting assembly and a third transmitting assembly, the optical receiving assembly comprises a first receiving assembly, a second receiving assembly and a third receiving assembly, and the optical routing system processes first to third wavelength transmitting optical signals and fourth to sixth wavelength receiving optical signals and comprises a combined optical path and a branched optical path. The combined optical path is provided with a first dichroic optical filter and a second dichroic optical filter which are sequentially arranged, the optical axis of the first transmitting component is aligned with the transmission optical path of the first dichroic optical filter, the second transmitting component and the third transmitting component are respectively aligned with the reflection optical paths, and the combined optical path is coupled to the optical fiber interface through the lens; the branching light path is provided with third to seventh dichroic optical filters, the optical filters are sequentially arranged along the light path, and the first, second and third receiving assemblies are respectively aligned with the emergent light paths of the corresponding optical filters. The module is small in size, free of wavelength crosstalk, adaptable to multiple rates, low in power consumption, and excellent in bandwidth and performance of each port.

A kind of plating platinum metal film capillary, gas raman spectrum detection system and use method, plating platinum metal film capillary includes silica capillary and plating film, the length of silica capillary is 5 to 20 centimeters, inner diameter is 0.5 to 2 millimeters, the inner wall, outer wall and both side end face of silica capillary are evenly plated with plating film, plating film is mirror surface platinum film, in the gas raman spectrum detection system based on plating platinum metal film capillary, laser is processed after passing through precision grinding lens, optical fiber collimating coupler, narrow band filter, long focus best shape lens, dichroic filter, pinhole plate, and enters plating platinum metal film capillary, and Raman signal is generated by two interactions with gas in plating platinum metal film capillary by the reflection of second reflector.This design not only can carry out raman spectrum detection to the gas of strong corrosivity or / and strong oxidizability, but also can reflect Raman signal multiple times, effectively improves the collection rate and durability of system's Raman signal.

The invention belongs to the technical field of solid laser pumping, and discloses a solid laser timing pumping device based on a mechanical delay device, which comprises a pumping source, a total reflective mirror, a crystal disc, an output mirror and a double-color filter which are sequentially arranged along the direction of a light path, a pumping light beam emitted by the pumping source sequentially passes through the total reflective mirror, the crystal disc and the output mirror, and the output laser passes through the double-color filter to realize the separation of the pumping light and the laser beam; the mechanical delay device drives the crystal disc to rotate intermittently, and when the pumping source emits light beams to irradiate the crystal disc in the resonant cavity, the crystal disc is in a stop state; after the irradiation of the crystal disc in the resonant cavity in the period is finished, the crystal disc enters a rotating state; and before the pumping source enters the next period of irradiation, the crystal disc in the resonant cavity is changed to the next pumping part, so that the periodic timing pumping of the solid laser is realized. The heat dissipation efficiency of the disc type solid laser is improved, and the influence of the crystal heat effect on the laser is reduced.

Laser radar include two part objective lenses that are used for imaging a target and directing probe beams to the target. Portions of tracer beams that degrade target images are attenuated with dichroic filters that block central portions of tracer beams. Local oscillator beams can be produced with a mixing lens that directs probe beams through a polarizing beam splitter to focus at or on a waveplate so that portions are reflected from the waveplate as local oscillator beams. An imaging system that is confocal with a probe beam is coupled to provide target measurements or to establish a focus of the probe beam.

This application provides a beam combining light source device for an optomechanical system, comprising: an emission module including multiple monochromatic light sources, each with a different emission wavelength, and at least one of the monochromatic light sources being a large divergence angle light source; a collimation module including collimating lens groups corresponding one-to-one with each monochromatic light source, each collimating lens group including a condenser lens and a collimating lens arranged sequentially along the optical path; and a beam combining imaging module including at least two dichroic filters and a coupling lens, each dichroic filter being obliquely disposed at the intersection of the transmission optical paths of each parallel beam, used to combine parallel beams from different directions into a combined beam propagating along the same optical axis, and image it onto the receiving surface of the optomechanical system in a critical illumination manner. This application overcomes the physical performance bottleneck of the single-lens scheme, where light collection capability and collimation accuracy cannot be simultaneously achieved, realizing large-angle light collection and high collimation output under large divergence angle light source conditions.

The invention provides a light generating system (1000) comprising (i) one or more first light generating devices (110), one or more second light generating devices (120), a light transmissive housing (500) and a light filter (550) wherein: (I) the light transmissive housing (500) comprises a light transmissive material (505) wherein the light transmissive housing (500) comprises an upstream face (501) and a downstream face (502); wherein the light transmissive housing (500) defines a housing volume (507); (II) one or more first light generating devices (110) are at least partially disposed within the housing volume (507); wherein the one or more first light generating devices (110) are configured to generate first device light (111) having an intensity at one or more wavelengths within the visible wavelength range; wherein the one or more first light generating devices (110) comprise one or more LED filaments (115) (and wherein the first device light (111) comprises filament light); (III) the one or more second light generating devices (120) comprise one or more solid state light sources; wherein the one or more second light generating devices (120) are configured to generate second device light (121) having an intensity at one or more wavelengths within the visible wavelength range, the one or more wavelengths comprising at least one or more wavelengths within the blue-green wavelength range; (IV) the filter (550) comprises a dichroic filter; wherein the filter (550) is disposed within the housing (500); wherein the filter (550) is transmissive for at least a portion of the first device light (111) and reflective for at least a portion of the second device light (121) (in the blue-green wavelength range); wherein the one or more second light generating devices (120) are configured such that at least a portion of the second device light (121) (within the blue-green wavelength range) is reflected at the filter (550) in a direction away from the one or more first light generating devices (110); and (V) the light generating system (1000) configured to generate system light (1001) comprising one or more of (i) at least a portion of the first device light (111), and (ii) at least a portion of the second device light (121); and wherein the light generating system (1000) is configured such that, in a first mode of operation of the light generating system (1000), the system light (1001) is white light having a correlated color temperature in the range from 1500 K to 6500 K.

A headset includes a first display, a second display that is smaller than the first display and has lower resolution than the first display, and a dichroic filter positioned to pass visible light from the first display toward the eye and reflect visible light from the second display toward the eye. Pixel data control circuitry is coupled to darken the first display while simultaneously activating the second display to display a pattern for testing visual acuity, responsive to a first visual acuity test selection. Other aspects are also described and claimed.

The invention relates to a method for a flow cytometer. The method comprises the following steps: emitting fluorescence of different wavelengths generated by different fluorescent substances from an optical fiber, wherein the fluorescent substances are attached to different particles in a sample fluid; magnifying an image size from an end of the optical fiber to a first bi-color filter of a first plurality of bi-color filters arranged in a row in the first decomposed imaging array; reflecting fluorescent light of a first wavelength range between the plurality of filters and the first plurality of micromirrors to collimate the fluorescent light on odd number filters and reimage the fluorescent light on even number filters; passing a different wavelength range of the fluorescent light of the first wavelength range at each of the first plurality of dual-color-direction filters to decompose a wavelength spectrum of the fluorescent light of the first wavelength range; and detecting fluorescence in each different wavelength range in the first wavelength range associated with each fluorescent substance labeled to the particles to count the number of each different particle in the sample fluid.

The utility model provides a light source which is composed of a main light-emitting device, a wavelength conversion device, a reflection device and a dichroic filter, the reflection device and the wavelength conversion device are arranged on the two sides of the dichroic filter respectively, and the light-emitting device and the wavelength conversion device are arranged on the two sides or the same side of the dichroic filter. The three-piece projector has the advantages that through the combination of the dichroic optical filter, the wavelength conversion device and the reflection device, after light emitted by a single main light-emitting device is separated, part of the light is reflected by the reflection device, part of the light is subjected to wavelength conversion and then is combined and output, and the problems that in the prior art, a three-piece projector is large in number of light-emitting devices, the structural space in the projector is limited, and cost is high are solved. The structure is complex, and the production cost is high.

A lidar includes a two-part objective for imaging a target and directing a probe beam to the target. A portion of a tracking beam that degrades the target image is attenuated with a dichroic filter that blocks a central portion of the tracking beam. A local oscillation beam can be generated with a hybrid lens that directs the probe beam through a polarizing beamsplitter to be focused at or on a waveplate so that a portion is reflected from the waveplate as the local oscillation beam. An imaging system that is confocal with the probe beam is coupled to provide a target measurement or to establish a focal point of the probe beam.

A dual-substrate dichroic beam combiner includes two substrates, and a dichroic thin-film filter coated at a nominally planar interface between the substrates. The filter is configured to combine, into a combined laser beam, two input laser beams that are incident on the filter of the combiner from opposite respective sides thereof. One input beam is transmitted by the combiner, while the other input beam is reflected. The substrates are configured to, when heated by absorption of the input laser beams in the filter, form a lens for each of the input laser beams. The lens is either (a) a negative lens for each of the input laser beams or (b) a positive lens for each of the input laser beams. The combiner thereby reduces or eliminates focusing discrepancies between the two input beams, in the combined beam, as compared to a conventional single-substrate dichroic beam combiner.

The existing solar power generation panel installed on the roof of a smart farm has problems that an amount of light transmitted into the greenhouse is significantly reduced and the transmitted light is also not uniform, and thus an area where the solar power generation panels are installed is shaded and a shadow occurs. For these reasons, an installation distribution rate of solar power generation panels installed on the roofs of smart farms is very low. A solar power generation system for smart farms includes a three-dimensional (3D) optical filter window with a function of selectively transmitting light of wavelengths applicable to smart farms, and a solar power generation module provided to protrude above an optical filter of the optical filter window to increase solar power use efficiency. Since shading occurs when a solar power generation panel is used in a smart farm to affect cultivation, there is a problem in that the solar power generation panel cannot be used on the roof of a smart farm. However, according to the above-described configuration of the present invention, the optical filter window equipped with a dichroic light filter is used to solve this problem so that there is an effect of operating a smart farm more economically.

The invention relates to an optical transmitter and receiver module (100), which includes: - an optical fibre (10), - a substrate (50) for positioning the optical fibre, - a light source (20), - a photodetector (30), and - an optical element (40). A first side face (55) of the substrate (50) and a first end face (14) of the optical fibre together form a common face. The optical element (40) includes an input face (41) on which a dichroic filter (45) is deposited, the input face being arranged to face the common face. The common face has two successive planar portions: - a first planar portion (91) defining a plane having an angle β relative to a plane (P) perpendicular to an optical axis of the optical fibre, and - a second planar portion (92) defining a plane having an angle α with respect to the optical axis.

Microscopic Raman spectroscopy device that detects and analyzes Raman scattering light emitted from sample irradiated with excitation light includes: laser light source that emits excitation light; spectrometer for measuring spectrum of the Raman scattering light; wavelength discriminator such as a dichroic filter that reflects the excitation light emitted from the laser light source toward the sample and transmits Raman scattering light emitted from the sample toward the spectrometer; condenser lens arranged between wavelength discriminator and the spectrometer for condensing the Raman scattering light passing through the wavelength discriminator; aperture arranged between the condenser lens and the spectrometer for limiting Raman scattering light incident on the spectrometer; adjusting means for adjusting to match a position of spot image of Raman scattering light condensed by condensing lens with a position of the aperture so that light amount of Raman scattering light passing through the aperture is maximized.

The invention provides a light generating system (1000) comprising a first light generating device (10), a first quarter wave plate (721), a polarization based beam director (1510), a dichroic filter (750), a luminescent material element (2000), and a light exit (1090), wherein: - the first light generating device (10) is configured to generate first device light (11); the luminescent material element (2000) is configured to convert part of the first device light (11) received by the luminescent material element (2000) into luminescent material light (201); - the light generating system (1000) is configured such that at least part of the reflected first device light (11), in an optical path (i) propagates away from the luminescent material element (2000) and (ii) also returns to the luminescent material element (2000); wherein this optical path is (a) at least twice via the polarization based beam director (1510), and (b) twice via the first quarter wave plate (721), whereby the luminescent material element (2000) converts at least part of the reflected first device light (11), received by the luminescent material element (2000) via this optical path, into further luminescent material light (201'); and - the light generating system (1000) is configured to generate system light (1001) comprising at least part of the luminescent material light (201) and at least part of the further luminescent material light (201').

A lamp assembly according to the present invention is used as a light source of a head lamp or a beacon, and comprises: a dichroic filter member that has a filter surface for transmitting light irradiated from the rear and reflecting light irradiated from both sides toward the front; a first light source irradiation unit including a green first light source provided at a side corresponding to the front side of the dichroic filter member, and a first aspherical lens provided between the dichroic filter member and the first light source in order to concentrate light irradiated from the first light source; a second light source irradiation unit which is provided on both sides of the dichroic filter member so as to match an optical axis with the first light source irradiation unit, and which includes a red second light source and a second aspherical lens provided between the second light source and the dichroic filter member in order to concentrate light irradiated from the second light source; and a third light source irradiation unit including a blue third light source and a second aspherical lens provided between the third light source and the dichroic filter member in order to concentrate light irradiated from the third light source.

An automated polymerase chain reaction (PCR) analyzer (110) for analyzing at least one sample (112) and a method of automated PCR analysis is disclosed. The automated PCR analyzer (110) comprises: - at least one controller (114); - at least one thermocycling apparatus (116) configured for subjecting the sample (112) to at least one temperature modulation controlled by the controller (114); and - at least one photometer (118) configured for detecting at least one optically detectable property of the sample (112), the photometer (118) comprising at least one excitation light source (120) configured for illuminating the sample (112) with excitation light (122), the photometer (118) further comprising at least one photodetector unit (124) configured for detecting light (123) emitted from the sample (112), the photometer (118) further comprising a movable filter cell (126) controllable by the controller (114), the movable filter cell (126) comprising a plurality of filter cell units (128), each filter cell unit (128) comprising at least one optical excitation filter element (130), at least one dichroic filter (132), at least one optical detection filter element (134) and at least one the aperture stop (174), wherein the photometer (118) comprises a working position for the filter cell units (128), wherein the movable filter cell (126) is configured for selectively positioning a selected filter cell unit (128) selected from the plurality of filter cell units (128) in the working position, wherein, in the working position, the selected filter cell unit (128) is positioned such that the excitation light (122) interacts with the optical excitation filter element (130), the dichroic filter (132) and the aperture stop (174) of the selected filter cell unit (128) and that the light (123) emitted from the sample (112) interacts with the dichroic filter (132), the aperture stop (174) and the optical detection filter element (134) of the selected filter cell unit (128).

To provide a stimulated emission depletion microscopy system that shortens scanning time while maintaining sufficient spatial resolution.SOLUTION: A stimulated emission depletion microscopy system controls a wavefront of stimulated emission depletion light into a circular shape using a wavefront control optical system 5 and controls a wavefront of excitation light into a flattened shape using a wavefront control optical system 6. By scanning, in a y-direction, the stimulated emission depletion light whose wavefront is controlled by a deflector 7, a stimulated emission depletion light group STLG arranged in parallel along the y-direction is generated. The stimulated emission depletion light group STLG and the excitation light EXLF, combined by a dichroic filter 8, are scanned in a xy-direction by a two-dimensional deflector 9, enabling simultaneous excitation and de-excitation of a plurality of regions within a single frame time of a detector and allowing fluorescence signals to be detected. Before the stimulated emission depletion light and excitation light are combined by the dichroic filter 8, the stimulated emission depletion light is scanned in the y-direction by the deflector 7 at a speed higher than the non-resonant frequency of the two-dimensional deflector 9.SELECTED DRAWING: Figure 1

In this stimulated emission depletion microscope system, a wavefront control optical system (5) controls stimulated emission depletion light such that the wavefront of the stimulated emission depletion light has an annular shape, a wavefront control optical system (6) controls excitation light such that the wavefront of the excitation light becomes flat, a deflector (7) scans the wavefront-controlled stimulated emission depletion light in the y direction to generate a stimulated emission depletion light group (STLG) in parallel in the y direction, and a two-dimensional deflector (9) scans, in the xy direction, the stimulated emission depletion light group (STLG) and the excitation light (EXLF) that have been combined by a dichroic filter (8), so that a detector simultaneously excites and de-excites a plurality of regions within one frame time of the detector and detects a fluorescence signal. Before the stimulated emission depletion light and the excitation light are combined by the dichroic filter (8), the deflector (7) scans the stimulated emission depletion light in the y direction, so that scanning is performed at a higher frequency than the non-resonance frequency that the two-dimensional deflector (9) has.

A system for sample holder scanning is provided. The system comprises: a light source; a multi-band excitation filter configured to select light of at least two excitation bands for a fluorescent dye used in the sample holder. The system further includes: a multiband dichroic filter configured to reflect light of the at least two excitation bands; and a multi-band emission filter configured to transmit the fluorescent emission light of at least two bands from each reaction site of the sample holder. The multiband dichroic filter is further configured to transmit the fluorescent emission light of the at least two bands. The system also includes an optical sensor configured to detect the fluorescent emission light of the at least two wavebands to generate an image of the sample holder.

A beam combining device, enabled to combine a first beam with a second beam of a different spectrum into a combined beam, where the combination may be obtained through a device comprising two antireflective coating, a dichroic filter coating, and a reflective coating arranged on a substrate.

The invention discloses a spectrum splitting Si / GaAs space laminated solar cell with a heat dissipation structure and a preparation method, the solar cell comprises two transparent heat conduction glass plates, and a nano composite heat dissipation structure is arranged on the two transparent heat conduction glass plates. A Si heterojunction cell and a GaAs heterojunction cell are arranged on the nanometer composite heat dissipation structure of the two transparent heat conduction glass plates, a dichroic optical filter is arranged over the Si heterojunction cell, and a light diffuser is arranged between the GaAs heterojunction cell and the dichroic optical filter. According to the invention, the Si heterojunction cell and the GaAs heterojunction cell are vertically integrated, so that the problems of lattice mismatch, thermal expansion mismatch and the like of the traditional monolithic laminated cell are avoided; the nano composite heat dissipation structure is integrated on the heat conduction glass substrate, so that thermally induced efficiency attenuation is effectively inhibited; and a new way is provided for obtaining the high-efficiency Si / GaAs laminated solar cell.

A display device including a light source module and a wavelength conversion module is provided. The light source module includes a substrate, a plurality of first LED elements and a second LED element. The first LED elements are configured for providing a plurality of first color lights, and the second LED element is configured for providing a second color light. The wavelength conversion module is overlapped and arranged on the light source module, and the wavelength conversion module includes a wavelength conversion element and at least one dichroic filter layer. The wavelength conversion element is configured to absorb the first color lights emitted by a part of the first LED elements and excite a converted light beam, wherein a color of the converted light beam is different from that of the first color lights and the second color light.

The utility model discloses a multichannel fluorescent dye optical filter combination for FISH (fluorescence in situ hybridization) detection, which comprises an excitation optical filter, an emission optical filter and a color separation optical filter, and the excitation optical filter, the emission optical filter and the color separation optical filter respectively comprise a glass substrate arranged at the bottommost layer; the glass substrate comprises a plurality of high-refractive-index coating layers and a plurality of low-refractive-index coating layers, and each high-refractive-index coating layer and each low-refractive-index coating layer are sequentially arranged on the glass substrate according to alternate sputtering; the multi-channel fluorescent dye filter combination is suitable for simultaneously detecting three fluorescent markers of enhanced cyan fluorescent protein (ECFP), fluorescein isothiocyanate (FITC) and cyan pigment 3 (CY3).

The application discloses a kind of portable space laser communication link establishment test device, comprising: beam expander subassembly, signal light receiving module, signal light emitting module, light splitter, dichroic filter, piezoelectric ceramic fast mirror, piezoelectric controller, monitoring camera, communication machine and industrial computer;Beam expander subassembly, light splitter, dichroic filter, piezoelectric ceramic fast mirror are sequentially coaxial interval arrangement;Signal light emitting module emits light sequentially through piezoelectric ceramic fast mirror light splitter, dichroic filter and beam expander subassembly;The measured space laser communication load is set on satellite.The application is integrated into a whole device by each unit used, directly powered on when using, convenient to use, improves test efficiency.The structure is simple, and the measured space laser communication load can be tracked performance test, increase the functionality and comprehensiveness of test device.

This invention discloses a variable-focus infrared lens suitable for a wide temperature field, comprising: an infrared lens base, an infrared dichroic filter assembly, a front infrared lens assembly, a rear infrared lens assembly, an infrared zoom lens assembly, and an infrared filter switching assembly; wherein the infrared dichroic filter assembly, the front infrared lens assembly, the rear infrared lens assembly, the infrared zoom lens assembly, and the infrared filter switching assembly are all fixed to the upper surface of the infrared lens base; the optical axes of the front infrared lens assembly, the rear infrared lens assembly, the infrared zoom lens assembly, and the infrared filter switching assembly are all aligned. This invention effectively improves the environmental adaptability and target acquisition capability of laser optical systems.

An apparatus (170) for performing diagnostics on an optical cable (180) in a fiber optic network (100), the apparatus comprising: a reflector (240); a dichroic filter (220) configured to output from input light emitted through the optical cable: a reflected component; and a transmission component; an optical switch (230) arranged to receive the transmission component and interface with the reflector, and configured to perform switching between optically connecting the reflector to the transmission component and disconnecting the reflector from the transmission component; and a photovoltaic PV power source (250) arranged to receive the reflected component and electrically connected with the optical switch to generate power from the reflected component and power the switching of the optical switch. A fiber optic network (100) and a method (300) of operating the network are also provided.