74 results about "Reflection illumination" patented technology

The invention relates to the technical field of near-to-eye display, in particular to a miniature biprism projection system for a reflection illumination light source and near-to-eye display equipment. The miniature biprism projection system comprises an illumination light source, an image source, a first prism and a second prism, wherein the second prism is arranged between the first prism and the image source; the second prism is used for receiving the illumination light rays output by the illumination light source, reflecting the illumination light rays twice and then emitting the illumination light rays to the image source; the image source reflects the illumination light to form image light, and the image light is refracted by the second prism, then enters the first prism, is reflected twice in the first prism, and then is emitted to the exit pupil position. According to the projection system, the illumination light path and the imaging light path share the second prism, the illumination light is reflected twice by the second prism to the image source, the image light is refracted by the second prism, reflected twice by the first prism and then emitted to the exit pupil position, light path folding is achieved, and the size of the projection system is greatly reduced.

A film thickness measurement device and a detection device, the film thickness measurement device comprising: a light source module configured to provide an illumination beam in a preset wavelength range; the reflection assembly is configured to partially cut into the illumination light beam and partially reflect the illumination light beam; the transmission assembly is configured to receive the illumination light beam reflected by the reflection assembly and output the illumination light beam to a to-be-tested piece; receiving an information light beam formed by reflecting the illumination light beam by the to-be-detected piece, and outputting the information light beam to a first light beam detection module; and the first light beam detection module is configured to receive the information light beam output by the transmission assembly, at least detect the light intensity of the information light beam and output a corresponding first detection result. The device provided by the utility model does not need a beam splitter, the information light beam is not reflected or diffracted, the signal intensity of the information light beam received by the first light beam detection module is high, the measurement time is reduced, and the detection accuracy is improved.

A semiconductor measurement apparatus includes an illumination unit configured to provide illumination light including linearly polarized light beams having different wavelengths, an optical unit including an objective lens configured to allow the illumination light to be incident on a sample, the optical unit being configured to transmit reflection light generated when the illumination light is reflected from the sample, a self-interference generator configured to self-interfere the reflection light transmitted from the optical unit and transmit the reflection light to a first image sensor, for each wavelength, and a controller. The controller is configured to process a measurement image output by the image sensor to divide the measurement image into a first image representing an intensity ratio of a polarization component of the reflection light and a second image representing a phase difference of the polarization component of the reflection light, for each wavelength.

Method for optically inspecting containers, where the containers are transported to an inspection unit with an illumination unit and with a camera, where light emitted from a planar light-emitting surface of the illumination unit is transmitted or reflected via said containers, where the camera records in at least one camera image at least one of the respective containers and the light transmitted or reflected via them, where the light emitted from the light-emitting surface is locally encoded on the basis of a wavelength property and is recorded by the camera in such a way that different emission locations of the light-emitting surface can be distinguished from one another in the at least one camera image, and that the image processing unit evaluates the at least one camera image for location information of the emission locations, in order to distinguish the defects from the foreign objects.

The invention discloses a fundus imaging system, which includes an optical path folding lens set, a virtual reality display, visible light fixation lamps, an illumination module, an image sensor, and a processor. The virtual reality display and the human eye are located on different sides of the optical path folding lens set. The virtual reality display forms images on the retina of the fundus of the human eye through the optical path folding lens set. The visible light fixation lamps are sequentially turned on to guide the eyeball of the human eye to rotate. When the visible light fixation lamp is turned on, the illumination module emits illumination light through the optical path folding lens set to illuminate the retina. The retina reflects the illumination light to form fundus light. The image sensor receives fundus light through the optical path folding lens set to form a sub-fundus image. The processor stitches all sub-fundus images into a full-fundus image and drives the virtual reality display to display the full fundus image.

1. The name of this design product: Lens and reflector cup assembly (Firefly-Starry Sky). 2. Purpose of the product of this design: installed on a lamp, wherein the lens is used for light distribution of the light source, such as for light distribution of LED lamps, and the reflector cup is used to refract and / or reflect the light of the light source on the lighting lamp. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the key points of the design: Design 1 Stereoscopic drawing 1. 5. Designate Design 1 as the base design. 6. Other situations that need explanation Other explanations: In design 1, the Q part is a light-transmitting material, such as a transparent material; in design 2, the Q part is a light-transmitting material, such as a transparent material; in design 3, the Q part is a light-transmitting material, such as a transparent material.

The invention discloses a lens flash elimination method, an image capturing apparatus and an image measuring apparatus. The lens flash elimination method performs the steps of: acquiring an image by irradiating the coaxially reflected illumination light at varying irradiation intensities and capturing an image at each irradiation intensity when the object is not placed on the stage; a step for capturing an image of the object by irradiating the object placed on the stage with coaxially reflected illumination light at any irradiation intensity; a step for estimating an image for correction on the basis of the image acquired in the image acquisition step, the image for correction being an image at an irradiation intensity irradiated when the measurement object is captured; and a step for generating a corrected image in which lens flash is eliminated from the image of the object by obtaining a difference between the image of the object and the image for correction.

A system includes at least a plane semi-reflecting mirror, a light source which is configured to emit a continuous illumination and an event camera to generate events when the object exhibits at least one movement. The plane semi-reflecting mirror is arranged so that it reflects at least the illumination toward the event camera in order to dazzle the camera. The system makes it possible to limit the memory and energy consumption required for monitoring.

An observation apparatus includes: an illumination optical system provided below an installation position of a multi-well plate; a reflector provided above the installation position, the reflector being configured to reflect light emitted from the illumination optical system; and an observation optical system provided below the installation position, the observation optical system being configured to condense the light reflected by the reflector. The reflector is installed such that a marginal ray to enter the observation optical system travels via a peripheral well different from an on-axis well located on an optical axis of the observation optical system before reflection due to the reflector.

This application relates to a method and device for detecting appearance defects using an integrated array optical system, belonging to the field of product appearance defect detection technology. It includes a housing, a lens holder, and a main control module. The lens holder forms a detection chamber, and its inner wall is equipped with multiple arrayed lenses, which, together with a light source cover and a light guide, constitute a uniform reflection illumination system. During detection, the object to be inspected is placed in the detection chamber, and multiple lenses simultaneously acquire multi-angle appearance images of its periphery, bottom, and top. These images are then transmitted to a host computer via the main control module for defect comparison. Through the array lenses and integrated optical design, it can achieve blind-spot-free imaging in a confined space, effectively eliminating specular reflections and shadow interference, and significantly improving the ability to acquire defect features of complex surfaces such as irregular three-dimensional surfaces and inner walls. It also possesses modular customization capabilities, allowing for rapid adaptation to various parts such as lead screws, inverters, and shock absorbers. It offers high detection efficiency and good stability, making it suitable for automated mass production.

A top plate design is described that allows a quick change of the reflector plates, for example, in the top plate assembly.  Using various techniques, the reflector plates or, in some examples, sources of illumination, are held in place by a vacuum during operation.  This technique holds the reflector plates securely without top-side fixturing, maximizing the available active area of a substrate.  A vacuum secures the panel or wafer without contacting the active areas, allowing for non-contact inspection and metrology. The top plate also facilitates the use of interchangeable reflector plates, enabling backlit or reflective illumination of the substrate’s features.

The present invention proposes a gaze point-based random light cutting method, firstly, a light source tree based on a balanced binary tree is constructed for the light source of the current scene; then a G buffer is constructed, wherein the G buffer contains normals, albedo, velocity, and brightness frame buffer; in order to improve rendering performance without reducing the perceived quality, the method proposes a construction algorithm of a spatiotemporal-brightness perception sensitivity map and light cutting based on the gaze point; in order to further improve rendering performance, the method proposes a selection algorithm based on multi-resolution illumination samples; finally, the diffuse reflection and glossy reflection illumination results of each pixel are calculated, and the diffuse reflection and glossy reflection illumination results are merged to obtain the output image of the current frame. The present invention has a frame rate of 53-110fps, supports fully dynamic scenes containing more than 250,000 dynamic light sources and dynamic diffuse reflection / mirror / glossy objects, and can provide high-quality lighting effects for high-perception sensitive areas of the human visual system in VR head-mounted displays.

The utility model discloses a reflective unilateral lighting system and a sewing machine in the technical field of sewing machine lighting. The reflective unilateral lighting system comprises a main body assembly, the reflecting plate is arranged on one side of the main body assembly and is fixedly connected with the bottom end of the main body assembly; the soft light cover is arranged below the reflecting plate and is fixedly connected with the main body assembly; the luminous body is arranged between the soft light cover and the reflecting plate; a light-transmitting area is arranged on the soft light cover, and the light-emitting body is located at the end, close to people, of the light-transmitting area. According to the utility model, an asymmetric light path is realized through a reflection illumination mode, the unilateral illumination effect on the bedplate is achieved, a lamplight irradiation area is concentrated in a sewing area, light rays are prevented from directly irradiating eyes, the damage to the eyes is reduced, and the sewing operation efficiency is ensured.

The invention relates to the technical field of photovoltaics, and particularly discloses a double-sided solar cell based on high-viscosity molten selenium (Se) and a preparation method of the double-sided solar cell. In order to solve the problems of complicated equipment, high cost, damage to functional layers and the like caused by dependence on a magnetron sputtering process in the prior art, the invention provides an innovative solution that high-viscosity molten selenium is used as a photovoltaic absorption layer and an adhesive, and two pre-deposited charge transport layers (CTL, CTL, CTL, CTL, CTL, CTL, CTL, CTL, CTL, CTL, CTL, CTL, CTL, CTL and CTL) comprising an electron transport layer ETL and a hole transport layer HTL is directly bonded to form a double-sided solar cell. According to the method, a traditional magnetron sputtering process is abandoned, the bottom functional layer is prevented from being damaged by plasmas, and meanwhile the material utilization rate and the process compatibility are improved. The efficiency of the double-sided cell reaches 10.01% under the reflection illumination of 0.5, and the indoor photovoltaic efficiency of the double-sided cell reaches 26.17% under the reflection illumination of 0.8. The method is suitable for the field of building integrated photovoltaic (BIPV), and has remarkable industrialization value.

The embodiment of the utility model provides a light source device which comprises a light source, a first wavelength conversion device, a light guide piece and a second wavelength conversion device, the first wavelength conversion device receives and converts at least part of exciting light into first excited light, and the light guide piece is used for guiding the first excited light and first residual exciting light. The second wavelength conversion device receives and converts at least part of the first residual exciting light guided by the light guide piece into second excited light, and the first residual exciting light, the second residual exciting light, the first excited light and the second excited light penetrate through the second wavelength conversion device. The energy of the exciting light is absorbed by the first wavelength conversion device, the energy of the exciting light transmitted to the second wavelength conversion device is reduced, rapid temperature rise of the second wavelength conversion device is avoided, the heat dissipation area of the first wavelength conversion device adopting reflection illumination is larger, the heat dissipation effect is better, and the heat dissipation requirement of a follow-up high-power light source is met. The embodiment of the utility model further provides lighting equipment.

The invention relates to a for controlling a light source, the method using (a) at least one pose estimate of a camera configured to capture one or more images of a scene of interest which comprises at least one landmark, as said light source is operated to emit light which illuminates said scene of interest, (b) a landmark map comprising at least 3D location information of a plurality of landmarks comprising the at least one landmark in the scene of interest, (c) an illumination model describing a relationship between an emission illumination power and a reflection illumination power, wherein said emission illumination power is the power of light emitted by the light source to illuminate said scene of interest, and said reflection illumination power is the illumination power of light reflected by one or more landmarks in said scene of interest and received by the camera, wherein the method comprises the following steps:(1) determining, for at least one of the plurality of landmarks, at least one emission illumination power of light to be emitted by the light source, and an illumination time during which the light source should be operated to emit light which has an emission illumination power which is equal to the at least one emission illumination power, using (i) the at least one pose estimate of the camera, (ii) the 3D location information of the at least one of the plurality of landmarks, (iii) the illumination model; and (2) operating the light source to emit light which has an emission illumination power which is equal to the at least one emission illumination power, for a time period which is equal to the determined illumination time course; and (3) updating the illumination model parameters, wherein the illumination model parameters which are updated comprise reflectivity parameters of at least one landmark.

In summary, the invention relates to a method for determining visibility in a vehicle and to a vehicle. The vehicle comprises at least one headlight 1, 3, wherein each headlight 1 provides a light profile 5 and thus a pattern 7, wherein a light profile 6 reflected from the pattern 7 is detected, wherein at least one gradient field 15, 15b is provided based on the reflected light profile 6, wherein the gradient field 15, 15b is compared with a target gradient field 15a. A comparison of the reflected light profile 6 with an expected light profile is also possible. If the light profile deviates significantly from the expected light profile or from the target gradient field with the gradient field, fog can be inferred. Depending on the respective deviation, the speed and / or the headlight can be adjusted accordingly.

Each example relates to a system (110) for an ophthalmic microscope system, a method and a computer program product, and a corresponding ophthalmic microscope system. The system is configured to obtain imaging sensor data from an optical imaging sensor (122) of a microscope of the ophthalmic microscope system. The system is configured to determine information regarding an anatomical feature of the eye represented in the imaging sensor data. The system is configured to control an illumination system (130) of the ophthalmic microscope system to adjust characteristics of a light beam used for red reflex illumination of the eye based on the information regarding the anatomical feature.

1. Name of the Design Product: Road Guardrail Induction Lamp. 2. Use of the Design Product: An attached multi-purpose induction lamp sign for installation on road guardrails, providing pedestrian induction lighting and motor vehicle light retro-reflection lighting. 3. Design Key Points of the Design Product: Lies in the shape. 4. Picture or Photo that Best Illustrates the Design Key Points: Perspective View 1.

Devices, methods, and systems related to surgical microscopes using red reflected illumination are provided. According to one aspect of the present invention, there is a red reflective surgical microscope system that may have a red reflective illumination source, an objective lens, and an aperture stop. In some embodiments, an aperture stop is located between the illumination source and the objective lens. An image of the aperture stop may be imaged near the objective lens, and a size of a light beam reflected from the objective lens is shortened based on a proximity of the image of the aperture stop to the objective lens. Other embodiments described herein include a red reflective surgical microscope system for use in conjunction with OCT and coupled via a dichroic mirror in which an obstacle is configured to minimize glare by being positioned on or adjacent a side of the dichroic mirror that does not reflect OCT light. Other embodiments include a tilted white light illumination source. Additional embodiments are also described herein.

The application discloses a kind of comprehensive microscopic measurement system and its measurement method of multi-parameter synchronous measurement, solve the measurement mode single of existing microscopic measurement system, cannot realize the demand of in-situ measurement multiple optical parameters problem, specifically including objective table, transmission illumination module, imaging module and reflection illumination module;Objective table is used to carry the sample piece to be measured;Transmission illumination module is set below objective table, to emit transmission measurement light to the sample piece to be measured on objective table;Reflection illumination module is set in the side of objective table, for emitting reflection measurement light;Imaging module is set above objective table, for receiving transmission measurement light or reflection measurement light, to measure corresponding parameter.The comprehensive microscopic measurement system and its measurement method can realize the imaging of light-transmitting / non-light-transmitting sample piece, three-dimensional topography, phase modulation quantity, polarization modulation quantity and other physical measurements, meet multiple measurement requirements, significantly improve measurement efficiency and multifunctionality.

The utility model discloses a kind of microscopic imaging devices, including holding assembly and the optical system with illumination light path and imaging light path, imaging light path has objective lens, first beam splitter, barrel lens and imaging element successively installed on holding assembly, illumination light path has light source and illumination mirror group successively installed on holding assembly;Wherein, first beam splitter is located at the intersection of imaging light path and illumination light path, for reflecting illumination signal and transmitting the reflection signal of sample, the entrance pupil distance of barrel lens is between 120mm to 180mm, objective lens can be removed from optical system and set on holding assembly;Light source is movably set on holding assembly, and the movable direction of light source is parallel to the optical axis of illumination light path;The utility model's microscopic imaging device at least has following beneficial effect: when objective lens parameter changes, only need to adjust the axial distance between illumination mirror group and light source this one parameter, greatly simplify the assembly, debugging and maintenance process of device.

In various examples, computing system display settings may be configured automatically based at least on display illumination patterns. For example, a system(s) may determine one or more locations of one or more displays associated with a computing device based at least on image data depicting a user of the computing device. In some instances, the image data may be captured during a period of time in which the display(s) may be operating at one or more respective frequencies. During this period of time, the system(s) may cause the display(s) to operate at the respective frequency(ies), and the image data may depict one or more reflections of the display(s) off one or more portions of the user. The system(s) may then determine the location(s) of the display(s) based at least on correlating one or more frequencies associated with the reflection(s) to the respective frequency(ies) of the displays.

An in-chamber device and method for calibrating a tunable-focus camera system may include an optical chamber that includes a housing, camera sensor, camera receiving lens, and illumination source. The housing may define an aperture, and the camera sensor may be disposed within the housing. The camera receiving lens may be disposed in the aperture and configured to enable light external of the optical chamber to be focused onto the camera sensor. The illumination source may be configured to output an illumination signal that is incident the camera receiving lens along a first axis via the camera receiving lens. The illumination signal may be reflected from a reflective element as a reflected illumination signal back through a second axis via the camera receiving lens so as to enable the reflected illumination signal to be sensed. The optical chamber may be used to automatically calibrate the tunable-focus camera system periodically or aperiodically.

The present invention provides an endoscope which can prevent the generation of light spots caused by illumination light reflected in a nozzle and obtain a good observation image. The endoscope (10) is provided with an observation window (34), illumination windows (44, 46) arranged around the observation window (34), and a nozzle (40) having a fluid injection port (52) opening toward the observation window (34) on the front end surface (28) of the front end body (30) of the insertion part (12), the nozzle (40) having an irradiated surface irradiated with the illumination light emitted from the illumination window (46), at least a part of the irradiated surface includes a scattering suppression portion (58A) composed of a mirror surface, and the scattering suppression portion (58A) reflects the illumination light in a direction different from that of the observation window (34).

There are included a three-dimensional location estimating part that estimates a three-dimensional location of a lighting device in an environment from an image photographed by a photographing device that is mounted on a mobile unit to photograph an environment around the mobile unit; a location information obtaining part that obtains location information of the mobile unit; a road surface reflection region estimating part that estimates a road surface reflection region in an image photographed by the photographing device at a second time point of the mobile unit, based on a three-dimensional location of the lighting device estimated from an image photographed by the photographing device at a first time point of the mobile unit and based on the location information obtained at the second time point, the road surface reflection region being a region where illuminating light radiated from the lighting device is reflected; and an environment recognizing part that recognizes an environment from an image region excluding the road surface reflection region where the illuminating light is reflected.

The utility model discloses an electric bicycle headlight which is characterized in that a reflecting lamp cup is arranged inside a barrel cavity, a lens is fixed at a front-end barrel opening of a lamp barrel, a ring is fixedly connected with the outer wall of the front-end barrel opening of the lamp barrel, the inner wall of a cavity opening of the barrel cavity is fixedly connected with the reflecting lamp cup, and the reflecting lamp cup is integrally formed; the reflecting lamp cup comprises a central funnel-shaped light reflecting cup and a V-shaped outer ring reflecting cup, and a central funnel-shaped light reflecting cavity and a V-shaped outer ring reflecting cavity are correspondingly formed in the reflecting lamp cup; the V-shaped outer ring reflection cavity surrounds the central funnel-shaped light reflection cavity; a central main illumination LED lamp is fixed in the center of the bottom of the central funnel-shaped light reflection cavity; an outer ring auxiliary lighting LED lamp is fixed to the bottom of the V-shaped outer ring reflection cavity in a surrounding mode. The central funnel-shaped light reflection cavity and the V-shaped outer ring reflection cavity of the product are independent from each other to form a double-cavity reflection cup, optical crosstalk is avoided, light source reflection between external light irradiation does not influence each other, and the reflection illumination effect of the central main illumination LED lamp and the outer ring auxiliary illumination LED lamp is good.

Imagining using reflected illuminated structures (“IRIS”) in accordance with embodiments of the invention are disclosed. In one embodiment, an IRIS device is provided, the IRIS device comprising: a projector; a camera; a processor operatively connected to the projector and the camera; and a memory storing instructions that, when executed by the processor, cause the image capture device to: project, using the projector, a plurality of illuminated structures onto an object having an optically transparent, translucent, or opaque surface; and capture, using the camera, image data comprising a reflection of the plurality of illuminated structures from the optically transparent, translucent, or opaque surface of the object.

A high-end safe box capable of illuminating the interior comprises a box door and a box body, the box door is connected to the box body through a hinge, an annular frame is arranged on the back face of the box door, and the high-end safe box is characterized in that an illuminating device is arranged on the side wall, close to the hinge, of the annular frame, and a light source of the illuminating device can illuminate the interior of the box body from the box door. A reflector is arranged on the rear side in the cabinet body and can reflect a light source of the lighting device. The safe box has the advantages that when the cabinet door of the safe box is in an open state, light emitted by the light source of the lighting device is emitted from the outside of the safe box body to the inside of the safe box body, and even if a plurality of shelves are arranged in the safe box, the lighting device can illuminate all spaces in the safe box body. And the reflector is arranged on the rear side of the safe box body and can reflect light emitted by the light source of the lighting device, so that the reflector can enhance the brightness in the safe box body.