1439 results about "First light" patented technology

A light source unit is provided which includes:

• • a first light source which shines excitation light of a predetermined wavelength band;
  • an optical path switching device which switches in a time-sharing fashion the light shone from the first light source into first light which is shone in a first direction and second light which is shone in a second direction;
  • a light emitting plate on which a luminescent material layer is formed which emits luminescent light of a wavelength band which is different from that of the excitation light when receiving the second light; and
  • a light guiding optical system which guides the first light and the luminescent light to the same optical path.

A flashlight has a lens having an optical axis, with a first light source positioned on the optical axis. A second light source is spaced apart from the first light source away from the optical axis, and the lens has an aperture registered with the second light source. The lens may have a central portion configured to transmit axially-emitted light from the first light source, and the lens having a peripheral portion having an internally reflective surface configured to reflect laterally-emitted light from the light source in a direction more closely aligned with the optical axis. The first light source may be positioned within a recess in the lens, and the aperture may be formed in the peripheral portion of the lens. The light sources may be LEDs, and may be of different colors.

A refrigeration appliance includes an insulated cabinet forming an interior cavity. A refrigeration system cools the interior cavity. A first light source emits light into the interior cavity along a first illumination axis. A second light source for emits light into the interior cavity along a second illumination axis. A bottle storage rack is located within the insulated cabinet. The bottle storage rack includes a first rung pair, a second rung pair, and a third rung pair. The first illumination axis passes between a rung of the first rung pair and a rung of the second rung pair, and the second illumination axis passes between another rung of the second rung pair and a rung of the third rung pair.

An illumination system for use in a projector is provided. The illumination system comprises a first light source, a first timing controlling unit, a curved reflecting component and a wavelength converting component. The first light source provides a first wavelength light, while the first timing controlling unit divides the first wavelength light into a first timing portion and a second timing portion. The curved reflecting component comprises a focal point. The wavelength converting component is disposed at the focal point for converting the first timing portion of the first wavelength light into a second wavelength light.

An optically pumped magnetometer device includes a first vapor cell having a light input window; a first light source configured to produce a first light beam; a first prism optic configured to receive the first light beam from the first light source and redirect the first light beam into the first vapor cell at a non-normal direction relative to the light input window of the first vapor cell; and a first light detector configured to receive the first light beam after passing through the first vapor cell. The device may also include additional light sources and light detectors which may share the prism optic and vapor cell (or utilize another prism optic or vapor cell or both).

An apparatus and a method for eliminating glare are disclosed, wherein this method includes steps as follow. First, a first image is captured from an object when a first light source radiates light and a second light source is turned off, and a second image is captured from the object when the first light source is turned off and the second light source radiates light, wherein the first and second light sources are separate from each other. Then, a first glaring area is removed from the first image to create a first modified image, and a second glaring area is removed from the second image to create a second modified image. Then, the first and second modified images are merged to create a merged image.

A thermal detector includes: a substrate; a support member supported so that a cavity is formed between the substrate and the support member; a heat-detecting element supported on the support member; a thermal transfer member disposed over the heat-detecting element, and including a thermal collecting portion made of a material having light-reflecting characteristics and having a pattern with which a portion of light incident to a region defined by the support member as seen in plan view enters towards the support member, and a connecting portion connecting the thermal collecting portion to the heat-detecting element; a first light-absorbing layer contacting the thermal transfer member between the thermal transfer member and the support member; and a second light-absorbing layer contacting the thermal transfer member and disposed on the thermal transfer member.

A light emitting module is provided in which color unevenness of illumination light is difficult to occur. An optical member formed from a translucent material having a refractive index higher than air is interposed between a first light emitting part and a second light emitting part. A side surface of the optical member has a region facing a first sealing member, and the region is at least partially in contact with a surface of the first sealing member. The side surface of the optical member has a region facing a second sealing member, and the region is at least partially in contact with a surface of the second sealing member. In plan view, an upper surface of the optical member does not substantially overlap either of an upper surface of a first light emitting element or an upper surface of a second light emitting element.

A method of forming assist feature patterns includes providing an original layout pattern having at least a first region defined therein, the first region having a first light transmission rate larger than 0%; performing a search step to the original layout pattern to define at least a second region having a second light transmission rate equal to 0% in the original layout pattern; forming a plurality of assist features in the second region to increase the second light transmission rate to larger than 0%; and outputting the original layout pattern and the assist features to a reticle blank.

The embodiment of the invention provides a display device and a driving method thereof, which relate to the technical field of display, and aim to improve the light transmittance of an optical component setting area and improve the influence of the optical component setting area on display. The display device includes a display panel. The display panel comprises a display area, sub-pixels and a driving chip, wherein the display area includes a first display area and an optical component setting area; the sub-pixels comprise a first sub-pixel located in the first display area and a second sub-pixel located in the optical component setting area; the first sub-pixel comprises a first pixel circuit and a first light-emitting element, and the second sub-pixel comprises a second light-emitting element; and the driving chip comprises a data signal output module which is electrically connected with the first pixel circuit and is used for outputting a first data signal to the first pixel circuit, thereby enabling the first pixel circuit to drive the first light-emitting element to emit light, and a driving current signal output module which is electrically connected with the second light-emitting element and is used for outputting a second driving current signal to the second light-emitting element to drive the second light-emitting element to emit light.

The backlight assembly includes a light source and a light guide plate. The light source includes a plurality of light generating parts that generate a first light. The light guide plate includes side surfaces, a light exiting surface and a light reflecting surface. The light exiting surface has a plurality of luminance-compensating patterns. The light reflecting surface faces the light exiting surface. The first light enters into the light guide plate via the light incident surface to form a second light. The second light is reflected on the light reflecting surface toward the light exiting surface to form a third light. The third light exits from the light guide plate via the light exiting surface. The luminance-compensating patterns uniformize a luminance of the third light. A thickness of the light guide plate decreases in a direction from the light incident surface to a center of the light guide plate.

A device includes a display and a first light source configured to emit light, wherein the first light source is proximate to the display. The device further includes a first camera disposed behind the display, wherein the first camera is configured to detect reflections of the light emitted by the first light source. The first camera is further configured to capture a first image based at least in part on the reflections, wherein the reflections are partially occluded by the display. The device also includes a second camera proximate to the display, wherein the second camera is configured to capture a second image. In addition, the device includes a depth map generator configured to generate depth information about one or more objects in a field-of-view (FOV) of the first and second cameras based at least in part on the first and second images.

The invention provides a lighting system (1) with at least two subsets (SS1, AS1) of light sources, wherein one or more first subsets (SS1, SS2, . . . ) provide first light (111) mimicking the solar light (during the day) and with the first light (111) having a variable direction, and wherein one or more second subsets (AS1, . . . ) provide second light (211) mimicking the sky (without the sun, as the sun is provided by the first subset(s)) 5 (during the day). Especially, the color and/or color temperature of the first light (111) is variable, in addition the variability in direction. The lighting system may further comprise a control system (20) configured to control the color and intensity of the first light and/or second light.

A device according to the present invention includes at least one first light amount adjustment blade moving rectilinearly in a direction crossing a light passage direction and at least one second light amount adjustment blade pivoting within a plane crossing the light passage direction. When a light passage aperture of a polygonal shape formed by annularly superposing the first light amount adjustment blade and the second light amount adjustment blade is enlarged, a shape of the light passage aperture comes close to a circular shape from a polygonal shape.

The invention discloses an on-orbit self-calibration device of a space laser communication terminal and a calibration method of the on-orbit self-calibration device. The on-orbit self-calibration device comprises a beacon light emitting end, a first light splitting piece, a relay branch, a color separation piece, an optical antenna, a first reflecting mirror, a beacon light receiving end, a signallaser emitting end, a second light splitting piece, a second reflecting mirror and a signal laser receiving end. An all-optical reflecting prism is connected to an optical antenna, a transmitting optical path is returned to a receiving system of the all-optical reflecting prism along the original path, and relative deviation positions and deviation values of beacon light and signal laser transmitting and receiving optical axes of a laser communication terminal are subjected to rapid self-calibration. Optical axis deviation calibration is realized without cooperation of a ground optical communication system and other on-orbit satellite laser communication terminals, and rapid mutual positioning and tracking of the laser communication terminals are ensured through a deviation value algorithm compensation mode; and the labor, time, difficulty and cost of the debugging stage of the laser communication terminal during on-orbit operation of the satellite are greatly reduced.

The embodiment of the invention discloses a bimodal microimaging system and method; the bimodal microimaging system comprises an optical diffraction tomography subsystem and a structured light illumination fluorescence imaging subsystem; the optical diffraction tomography subsystem is used for carrying out unmarked optical diffraction tomography based on the first laser so as to obtain an opticaldiffraction tomography image of the sample; the structured light illumination fluorescence imaging subsystem is used for performing fluorescence imaging based on the second laser so as to obtain a structured light illumination fluorescence image of the sample; the bimodal microimaging system comprises a first light source and a second light source which are independent of each other, wherein the first light source is used for emitting the first laser, and the second light source is used for emitting the second laser.

The invention discloses a camera module and a mobile terminal with the same. The camera module comprises a first light path conversion assembly, a lens, a second light path conversion assembly, an image sensing element and at least one circuit board, the first light path conversion assembly comprises a first prism and a first driving part, and the first driving part is connected with the first prism to drive the first prism to rotate; the lens comprises a plurality of lenses and is arranged towards the emergent surface of the first prism; the second light path conversion assembly comprises atleast one prism, a second driving piece and a third driving piece; the prism to which the initial incident plane belongs is connected with the second driving piece so as to be driven to rotate; and the image sensing element is arranged opposite to the final emergent surface of the at least one prism, and the at least one prism is connected with the third driving piece in the opposite direction soas to be driven to move. Therefore, under the condition that the position of the lens is kept fixed, automatic focusing and optical anti-shake are realized, and power consumption of the motor can be saved by driving the relatively light prism.

A diffractive optical element, comprises a first diffractive structure to generate n₁₁-th order diffracted ray when a first light flux having λ1 (nm) of a wavelength comes in and to generate n₂₁-th order diffracted ray (n₁₁.≧n₂₁) when a second light flux having λ2 (nm) (λ2>λ1) comes in; and a second diffractive structure to generate n₁₂-th order diffracted ray when the first light flux comes in and to generate n₂₂-th order diffracted ray (n₁₂.≧n₂₂) when the second light comes in. The diffractive optical element satisfies the following formula: δφ_A12≠δφ_B12, where δφ_A12={n₁₁·λ₁/(N₁₁−1)}/{n₂₁·λ₂/(N₂₁−1)}, and δφ_B12={n₁₂·λ₁/(N₁₂−1)}/{n₂₂·λ₂/(N₂₂−1)}, wherein N₁₁, N₂₁ are refractive index of the first diffractive structure respectively for λ₁ and λ₂, and N₁₂, N₂₂ are refractive index of the second diffractive structure respectively for λ₁ and λ₂.

A liquid droplet measurement apparatus has: a first laser light source emitting a laser light; a first optical device which makes, in terms of a beam cross-section of the laser light, a beam width in a direction perpendicular to a direction of ejection of a liquid droplet, greater than a beam width in the direction of ejection of the liquid droplet, and makes light intensity of the laser light fall within a prescribed range within a range where variation in a position of the liquid droplet occurs in the direction perpendicular to the direction of ejection of the liquid droplet, at a position where the laser light from the first laser light source is irradiated onto the liquid droplet ejected; a first light receiving device which receives the laser light that has been irradiated onto the liquid droplet by the first optical device and generates a determination signal; and a first liquid droplet characteristics calculation device which calculates at least one of a volume of the liquid droplet and a velocity of the liquid droplet, from the determination signal generated by the first light receiving device.

Alight source apparatus includes a light source, a first polarization separator that transmits a first polarization component of first light in the first direction and reflects a second polarization component of the first light in a second direction, a second polarization separator that reflects the first polarization component of the first light in the second direction, a first reflector that reflects the second polarization component of the first light, a first retarder between the first polarization separator and the first reflector, a wavelength converter that converts the first light into second light and outputs the second light, a first color separator, a second retarder, a second color separator, and a third retarder.

The invention discloses a sunlight direct illumination system and a control method of the sunlight direct illumination system. The sunlight direct illumination system comprises a light guider, a first signal collector, a second signal collector, a plurality of reflector sets and a control module, wherein the first signal collector and the second signal collector are arranged on a reflection light path of the light guider; the light guider is provided with a light reflection plane, a linear motor used for controlling the direction of the light reflection plane and a slant angle sensor; the slant angle sensor, the first light signal collector and the second light signal collector are connected to the control module; the linear motor of the light guider is also connected to the control module; the control module, the slant angle sensor, the first light signal collector, the second light signal collector and the linear motor of the light guider form a closed-loop control system. The sunlight direct illumination system can automatically track a signal blind region generated when the system deviates from sunlight all the time after sunlight appears and effectively solve the off-target problem as soon as possible to find a target, and therefore it is guaranteed that the system enters a normal working state.

An optoelectronic device for measuring the water content in a plant element and an apparatus designed to evaluate and monitor in real time the state of hydration of the plant covers. The device includes an optoelectronic probe connected to a measurement module, the probe including: i) a first light source emitting at a wavelength corresponding to a strong water absorption band; ii) optionally, a second light source emitting at a wavelength close to the first source and weakly absorbed by water; and iii) a photo receiver having a spectral response that corresponds to the emission bands of the first light source or of the first and second light sources, the device including elements for modulating the average optical power emitted by the light source or sources at a defined frequency, and elements for synchronously detecting the light received by the photoreceiver.

The invention discloses a super-resolution microscopy method and system based on saturated pumping-stimulated emission detection and belongs to fields of super-resolution microscopy imaging and nonlinear optics. The system comprises a light source module, a detection module and a processing module, wherein a sample is put between the light source module and the detection module, the light source module comprises a first light source emitting excitation light, a second light source emitting reading light, a modulation device, a dichroscope and a galvanometer scanner, the detection module comprises a photo detector, the photo detector is connected with a lock-in amplifier, and the lock-in amplifier is in communicated connection with the processing module. On the basis of confocal microscopy,saturated excitation light is introduced and is limited in time domain, so that the sample can be entangled with a fluorescent high-order harmonic signal; in addition, another beam of reading laser is introduced, so that to-be-emitted fluorescence is emitted in a form of stimulated emission light, finally, a high-order harmonic signal of the stimulated emission light is demodulated through phase-locked detection, so as to obtain a final imaging result.

The embodiment of the invention provides a laser radar calibration device and method. The device comprises: a laser radar platform deck used for bearing a to-be-calibrated laser radar; the coarse positioning module which is used for acquiring a first light spot image of a laser beam of the to-be-calibrated laser radar; the movable fine positioning module which is used for adjusting a second shooting position based on the first light spot image and acquiring a second light spot image of the laser beam, wherein the resolution of the second light spot image is higher than that of the first lightspot image; the control module which is used for determining a target position of the light spot in a preset coordinate system based on the second light spot image; and determining an actual emergenceangle of the laser beam at least based on the target position.

The invention provides an optical image fusion system and method for an infrared unit and a night vision device. The system comprises a night vision device. A beam splitter including a first side surface and a second side surface that are opposite to each other is arranged obliquely at the upstream of the light path of the night vision device. Long-wave infrared light emitted by a target object is reflected by the first side surface and the reflected light passes through a first light converging device; near-infrared light of the target object passes through the first side surface and the second side surface successively and then enters the night vision device; the reflected light passes through the first light converging device and then the light is imaged at a photodetector; an electrical signal output by the photodetector is sent to a processing unit; the processing unit converts the electrical signal into an image signal; a display displays a visible light image of thermal imaging of the corresponding target object according to the image signal; the visible light image is converged by a second light converging device and then the converged light is reflected by the second side surface; and the reflected light enters the night vision device. The optical image fusion system has an advantage of point-to-point fusion.

The invention discloses an optical system and wearable equipment. The optical system comprises a light source, a compensating mirror group, a waveguide and a reflecting unit, wherein the compensatingmirror group is arranged on the light transmission path of the light source, the incident plane of the compensating mirror group is opposite to the emergent plane of the light source, and the compensating mirror group performs first light path adjustment on the light emitted by the light source; the waveguide is provided with a target incident plane, a first light guide part and a target emergentplane, the target incident plane is opposite to the emergent plane of the compensating mirror group, and the first light guide part is located between the target incident plane and the target emergentplane; and the reflecting surface of the reflecting unit is opposite to the target emergent surface, and the reflecting unit performs second light path adjustment on the light subjected to the firstlight path adjustment so as to reflect parallel light. The optical system can effectively ensure the integrity of light transmission, reduce the light loss, ensure the imaging quality and improve theviewing experience effect of human eyes by adjusting the light path twice.

Provided are a method and an apparatus for measuring a 3-dimensional (3D) position and an orientation of an object. The apparatus includes: a height measurement unit including a first light source and a first image sensor receiving light that is emitted from the first light source to the object and reflected from the object; a position measurement unit including a second light source, and a second image sensor receiving light that is emitted from the second light source to the object and reflected from the object; a tilt angle measurement unit including a third light source and a third image sensor receiving light that is emitted from the third light source to the object and reflected from the object; and a controlling unit selectively powering on or off the first, second, and third light sensors, and calculating a height variation, a position variation and tilt angles of the object by using images that are respectively formed on the first, second, and third image sensors.

The invention is suitable for the technical field of laser radars, and provides a frequency-modulated continuous wave laser radar, which comprises a frequency-modulated light source, a transceiver module and a silicon optical chip, the silicon optical chip is connected between the frequency modulation light source and the transceiver module, and the silicon optical chip comprises a first waveguide layer and a second waveguide layer which are arranged in sequence; wherein the optical power capable of being accommodated by the first waveguide layer is greater than the optical power capable of being accommodated by the second waveguide layer, and two interlayer mode converters are formed between the first waveguide layer and the second waveguide layer; a first light splitting unit is integrated on the first waveguide layer, the first light splitting unit is used for splitting a received laser beam into at least one beam of detection light and at least one beam of local oscillation light, and the optical power of each beam of local oscillation light is smaller than or equal to 50 mW; and a coherent receiving module is integrated on the second waveguide layer. The frequency-modulated continuous wave laser radar provided by the invention is small in size and high in integration level.

The embodiment of the invention discloses a multi-line laser radar calibration method, device and system. The method comprises the steps of collecting light spot images formed by laser beams emitted by at least two laser emitters in the multi-line laser radar in a calibration environment, wherein the calibration environment comprises at least two reference points with a preset distance; determining a first distance between adjacent light spots in the light spot image according to the light spot image and a preset distance; determining a second distance between the first light spot in the adjacent light spots and the multi-line laser radar and a third distance between the second light spot in the adjacent light spots and the multi-line laser radar according to the laser beams received by the multi-line laser radar; and according to the first distance, the second distance and the third distance, determining an actual vertical angle between adjacent laser emitters in the multi-line laserradar, and calibrating the actual vertical angle between the adjacent laser emitters. According to the embodiment of the invention, the calibration speed and accuracy of the multi-line laser radar areimproved.

An optical communication device and a method for transmitting and receiving information are disclosed. The optical communication device includes: at least two light sources including a first light source and a second light source; and a controller, which can drive the first light source and the second light source through at least two driving modes. The at least two driving modes comprise a firstdriving mode and a second driving mode. The first driving mode and the second driving mode have the same or different frequencies, and the device is used for transmitting first information when the first light source and the second light source are driven in the same driving mode. When the first light source and the second light source are driven in different driving modes, other information different from the first information is transmitted.