290 results about "Led illumination" patented technology

The invention provides a focusing method, device and equipment. The method comprises the following steps: determining pixel offset between a red channel image and a green channel image of a tissue slice; the red channel image and the green channel image are a red channel image and a green channel image of a tissue slice in a ghosting image captured by the color image sensor when a red light filter, a green light filter and double optical wedges in the focusing module are modulated at the same time; determining an out-of-focus distance according to the pixel offset and a preset corresponding relation; the preset corresponding relation is the corresponding relation between the pixel offset and the defocus distance; and focusing according to the out-of-focus distance. According to the method provided by the embodiment of the invention, the problem that positive and negative defocusing directions cannot be distinguished through a single-frame image in a phase shift detection automatic focusing technology based on image monochromatic double-hole modulation is solved, and the problem of time waste caused by high-speed switching of an illumination light source in an automatic focusing technology based on red-green double-LED illumination is solved; and meanwhile, the problem that a phase shift detection automatic focusing technology based on pupil segmentation images is relatively small in focusing range is solved.

The invention relates to the technical field of intelligent lighting control, and discloses an LED lighting energy-saving control system based on data judgment, which comprises a data sensing module, a scene recognition module, a strategy storage module and a driving control module, the data sensing module is used for collecting personnel dynamic behavior information and environment illumination intensity information in an illumination area; the scene recognition module outputs a corresponding scene recognition signal by receiving, fusing and analyzing the sensing data; a mapping relation table is stored in the strategy storage module; and the driving control module queries the mapping relation table through the scene identification signal to obtain the illumination control parameter of the target, and converts the illumination control parameter into an instruction signal for driving the LED lamp. According to the invention, through multi-dimensional data fusion and scene adaptive control, refined energy saving of the lighting system is realized on the premise of ensuring comfort.

A multi-color LED illumination device and specifically a lens comprising a cylindrical opening extending into the lens from a light entry region at which one or more LEDs are configured. A concave spherical surface extends across the entirety of the light exit region of the lens, and a TIR outer surface shaped as a CPC extends between the light entry region and the light exit region. There are various diffusion surfaces placed on the sidewall surface of the cylindrical opening, as well as its upper planar surface and, depending on whether glare control is not needed, the exit surface of the lens. Lunes can also be configured on the sidewall surfaces of the cylindrical opening and if lessening glare is needed, also on the TIR outer reflective surface. The combination of lunes, diffusion elements, and the overall configuration of the lens provides improved color mixing and output brightness.

The invention relates to Eu (II) doped double perovskite red fluorescent powder as well as a preparation method and application thereof, and belongs to the technical field of inorganic luminescent materials. According to the red fluorescent powder capable of being excited by the blue light, disclosed by the invention, high-performance red light emission is realized by doping Eu < 2 + > with an oxide Sr2B1-xB 'O6 (wherein B is lutetium (Lu), B' is tantalum (Ta) or niobium (Nb), and x is greater than or equal to 0.01 and less than or equal to 0.10 as a matrix). The novel red fluorescent powder can be applied to white light LED illumination. When the fluorescent powder is used in combination with green light or yellow light fluorescent powder in the prior art, efficient white light is expected to be realized under the excitation of blue light, so that the color rendering performance of a white light LED is absolutely improved.

The invention discloses an LED intelligent adjustment method and system based on full spectrum analysis, and the method comprises the steps: carrying out the spectrum analysis of a plurality of LED lights, extracting a peak wavelength and a full width at half maximum parameter, carrying out the spectrum fitting based on a Gaussian function, and screening out a qualified LED group; the method comprises the following steps: carrying out actual illumination application by utilizing an LED group, obtaining an original image and an illumination feedback image, dividing regions according to image sizes, comparing image attribute differences of different regions, screening out a comparison image region, carrying out color feature extraction on the basis of the comparison image region, forming a first color feature set and a second color feature set, and fusing the feature sets by adopting a DCA feature fusion algorithm to obtain a first color feature set and a second color feature set. Forming first and second fusion features; and calculating the difference between the first fusion feature and the second fusion feature through a standard Euclidean distance method, and evaluating and adjusting the lamp effect of the LED group according to the difference. According to the invention, accurate model selection and application of full-spectrum-based LED light can be realized, accurate evaluation of the full-spectrum LED illumination effect is realized, and illumination requirements under multiple scenes are met.

The invention discloses an LED eave lamp system and an intelligent control method thereof, and relates to the technical field of LED illumination. The LED eave lamp system comprises a power supply, an LED lamp strip body, a controller, a first mobile terminal and a second mobile terminal. The LED lamp strip body comprises a strip-shaped substrate, white light lamp beads and colorful light lamp beads, the white light lamp beads and the colorful light lamp beads are arranged on the strip-shaped substrate, at least one white light lamp bead is arranged between every two adjacent colorful light lamp beads, the power of the white light lamp beads is smaller than that of the colorful light lamp beads, the colorful light lamp beads are provided with lenses, and the lenses adjust the light emitting range. One end of the controller is connected with a power supply, and the other end of the controller is connected with the LED lamp strip body; the first mobile terminal sends a first control instruction to the controller through the wireless communication module; and the second mobile terminal sends a second control instruction to the controller through the APP, so that the white-light lamp beads and the colored-light lamp beads are controlled to emit light independently, and a light emitting mode matched with the scene where the LED eave lamp is located is generated. Therefore, intelligent dynamic control is realized, diversified requirements are met, and user experience is improved.

The invention relates to the technical field of LED illumination, and provides a constant current detection control circuit and device for a DC-DC LED dimming power supply. Comprising an MOS driving module; the driving module is used for receiving dimming control signals and generating driving voltage; a BUCK voltage reduction module; the voltage reduction module is used for reducing the driving voltage to generate an equivalent voltage signal; the peak current acquisition module is used for transmitting the LED output current to the MCU processor and determining a driving pulse width correction signal; and the current compensation calculation module is used for determining a compensation control signal according to the driving pulse width correction signal. The MCU is adopted as a control chip, an independent programming mode is adopted, and a corresponding peripheral acquisition circuit is matched to replace a drive control circuit with a BUCK drive IC as a core, so that the flexibility of BUCK drive application design is improved, and the BUCK drive circuit is not limited by the defects of a drive chip.

An intraoral three-dimensional imaging device comprises a monocular blue light speckle structured light projector, a white light LED illumination module, a macro RGB camera, a depth decoding module, an inertial measurement unit IMU module and an oral cavity scanning head, the monocular blue light speckle structured light projector emits blue light speckle coding patterns, the white light LED illumination module emits white light, the monocular blue light speckle structured light projector and the white light LED illumination module project alternately, and the blue light speckle coding patterns and the white light are coded. After being reflected by the 45-degree mirror surface of the oral cavity scanning head, the light is irradiated to the oral cavity teeth, then the macro RGB camera collects the irradiated oral cavity tooth image, and RGBD data is output after the monocular structure light depth decoding of the depth decoding module. The device has the advantages of being small in size, good in imaging effect of resisting high reflection or semitransparent of a dental face, high in 3D modeling precision, high in generation speed and capable of removing the influence of water mist in an oral environment.

The invention provides a multi-mode intelligent control method and system for an LED lighting device, and relates to the technical field of intelligent control, and the method comprises the steps: carrying out the continuous multi-period environment sensing of the LED lighting device, obtaining the environment data of a plurality of periods, constructing a multi-environment database, traversing the database, carrying out the mode recognition of the LED lighting device, determining a first lighting mode, carrying out the fuzzy reasoning, and obtaining a second lighting mode. According to the fuzzy control data set, lighting preference analysis and clearness processing are carried out, a lighting control recommendation mode is generated to carry out lighting simulation control, and mode switching is carried out on the first lighting mode based on a feedback result in combination with the lighting control recommendation mode to generate a mode switching scheme to carry out intelligent control. According to the invention, the problems of poor flexibility and adaptability of LED illumination control and insufficient diversified response capability of user demands are solved, and the effects of improving the flexibility and adaptability of LED illumination control and improving the use satisfaction and illumination efficiency of users are achieved.

The invention belongs to the field of fluorescent materials. The invention provides a spray drying preparation method of colorful fluorescent powder. The spray drying preparation method comprises the following steps: (1) preparing colorful carbon quantum dots; (2) preparing a colorful carbon quantum dot solution; (3) dialyzing the colorful carbon quantum dot solution in the step (2) by using a dialysis bag, or mixing the colorful carbon quantum dot solution with a carrier solution to obtain a mixed solution; and (4) preparing the colorful fluorescent powder: setting parameters of a spray drying device, sucking the mixed solution in the step (3) into the spray drying device at a constant speed through a rubber tube under magnetic stirring for spray drying, and collecting a solid powder product which is the colorful fluorescent powder. The invention also provides the colorful fluorescent powder. The invention also provides application of the colorful fluorescent powder. The colorful fluorescent powder is used for preparing display devices, laser illumination, LED illumination or noctilucent materials. The preparation and synthesis method of the fluorescent powder is simple, the reaction repeatability is high, and production can be expanded.

The invention discloses an LED lamp energy-saving control system and method, and relates to the technical field of LED illumination. The LED lamp energy-saving control system comprises a fault positioning module, an operation state analysis module and an environment adaptability evaluation module. According to the method, the change condition of PWM adjusting parameters of the LED lamp in the PWM dynamic dimming process is monitored in real time, fault positioning and prompting are carried out based on the change condition of the PWM adjusting parameters, then the external interference condition of the LED lamp in the PWM dynamic dimming process is analyzed, and finally the influence degree of the luminous efficiency of the LED lamp in the fault positioning process is analyzed. Therefore, the fault positioning efficiency of the LED lamp in the dynamic dimming process is improved, and the problem that the relevance between the fault positioning efficiency and the light emitting efficiency of the LED lamp in the dynamic dimming process is not high in the prior art is solved.

A smart home monitoring device is configured to plug into an electrical outlet and includes a multi-sensor array, excluding audio and video sensors, for monitoring environmental conditions, behavioral patterns, and odor-related indicators within a monitored environment. The device includes Bluetooth Low Energy communication with angle-of-arrival capability to enable sub-meter asset tracking, and supports home automation control through programmable automation frameworks such as IFTTT or Node-RED to initiate safety responses. The system further provides multi-tiered burglar detection through correlated event analysis across multiple sensor inputs, and generates health-related risk indicators based on detected patterns. Visual indicators, including multi-color LED illumination and blinking patterns, are used to communicate alert types and severity levels. The system enables non-intrusive monitoring while supporting proactive safety, security, and health management.

The invention provides an LED outdoor light pollution suppression system and method in combination with a generative adversarial network, and relates to the field of intelligent illumination. In an outdoor LED illumination scene, a cloud teacher model and a local student model are organically combined through a cold start mechanism and real-time online guidance, so that the LED outdoor light pollution suppression efficiency is improved. And adaptive control of multi-target constraints such as illumination uniformity, energy consumption, glare index and the like in a variable environment is realized. In addition, cold start is carried out in different scenes through the model snapshot library, new snapshots are solidified when the performance is excellent, and a cumulative evolutionary mechanism is formed. Thus, when the system encounters a similar scene again, the existing excellent snapshots can be loaded immediately, the algorithm efficiency is improved, and the scheme robustness and the long-period self-adaptive capacity are enhanced.

The invention discloses a method for accelerating a rice breeding process based on LED illumination, and belongs to the technical field of agriculture. According to the precise regulation and control method based on LED illumination, an LED spectrum combination and photoperiod scheme suitable for different growth stages of rice is designed, in combination with optimization of illumination intensity, uniformity and dynamic spectrum, rapid growth, blooming and fruiting of plants are effectively promoted, the photosynthesis efficiency is improved, high-yield and high-quality rice cultivation is finally achieved, and the method is suitable for large-scale popularization and application. Through dynamic spectrum regulation and control, accurate temperature and humidity adjustment and multi-generation rapid screening processes, the growth cycle of rice is greatly shortened, meanwhile, accurate nutrition supply is combined, plants with target characters are rapidly screened out, the breeding efficiency is improved, and through linkage optimization of illumination, temperature and humidity and nutrition regulation and control and combination of an automatic irrigation technology, the breeding efficiency is improved. Manual intervention and management errors are remarkably reduced, the environment control precision is improved, and the method has high adaptability and expansibility and can be widely applied to phytotron planting of other crops.

The invention discloses a coding LED illumination light source and an active hyperspectral imaging system, and effectively overcomes the defects of insufficient luminous flux and low signal-to-noise ratio in the current active hyperspectral imaging system based on the LED illumination light source. The system comprises an LED control module, an LED light-emitting module, a heat dissipation module, a focusing and dodging module, an imaging lens, an image detector, a computer and the like. The method is characterized in that coding illumination is carried out through a plurality of LEDs with different wavelength combinations based on a spectrum calculation principle, the illumination intensity of the active hyperspectral imaging system is multiplied, and the signal-to-noise ratio and the sampling speed of the system are improved. The invention provides a novel active hyperspectral imaging mode which can effectively meet the application requirements in different scenes such as high-resolution microscopic hyperspectral imaging and video-level high-speed hyperspectral imaging.

The invention discloses an LED lighting control system based on wireless networking, and relates to the technical field of lighting control, node position parameters Pos are obtained through calculation, so that a spatial relation table Srt is generated and updated, the spatial relation of a lamp can be automatically updated after nodes are newly added, nodes are replaced or the environment is changed, and manual coordinate reconfiguration is not needed; the uniformity evaluation module accurately identifies a space region with insufficient illumination or excessive illumination by calculating an illumination uniformity coefficient Luc, an over-bright ratio Ovl and a dark ratio Drk, and generates a region set Seg, so that a problem is positioned to a specific region coordinate; and finally, the illumination uniformity is issued to corresponding nodes in the node set Set through wireless networking to execute dimming, so that automatic optimization of the illumination uniformity is completed under the condition of not depending on manual intervention. The system dynamically adapts to changes of a space structure and use conditions, and long-term stable and energy-saving illumination uniformity control is achieved.

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 utility model discloses an illumination adjusting device, and relates to the technical field of illumination adjusting devices, the illumination adjusting device comprises a cultivation rack, a cultivation tray, a light gathering plate, an illumination adjusting plate, an LED illumination plate, a spacing rod, a mounting box and a sunshade net, the outer wall of the spacing rod is provided with a storage motor, the inner wall of the mounting box is provided with an adjusting thread groove, and the storage motor is connected with the storage motor. An adjusting threaded rod is mounted on the inner wall of the adjusting threaded groove, an extrusion plate is mounted on the outer wall of the adjusting threaded rod, and a sunshade net is arranged on the inner wall of the mounting box. By installing the shading mechanism, one end of a shading net is moved into the mounting box, then an adjusting threaded rod is rotated to move in an adjusting threaded groove, an extrusion plate moves, the shading net is fixed into the mounting box, the shading net and an LED illumination plate move synchronously, and the distance is fixed due to the fact that the length of a distance rod is fixed. If the illumination intensity is reduced, the illumination intensity can be reduced, and the LED lamp can be used according to different requirements.

The present technology comprises a single-aperture snapshot multi-spectral imaging device generally consisting of at least a color camera, a customized Octa-Band optical filter, a motorized zoom lens, and an 8-wavelength multi-color LED illumination system. The present technology also comprises a method about designing time sequences and combinations of LED illuminations, along with an unmixing algorithm for 8 MSI images generation. According to the present device and method, it is capable of fast multi-spectral image acquisition speed (<100 milliseconds), fast post-processing speed based on adopting a single aperture system without disparity correction calculation, adjustable FOVs, smaller form factors and lower costs, and high precision of spectral information.

A device and method for solving the problem of the collimation of an output beam of an LD / LED for illumination, the device comprising an LD / LED, which is configured to output ultraviolet light or blue light; a lens group, which comprises a total internal reflection spherical lens and a GRIN lens and is configured to collimate an output beam of the LD / LED; and a spot analyzer, which is configured to analyze spots of the beam output by the LD / LED by means of the lens group. The present invention further relates to the method for solving the problem of the collimation of an output beam of an LD / LED for illumination. By using the device and method for solving the problem of the collimation of an output beam of an LD / LED for illumination, a total internal reflection spherical lens and a GRIN lens are added into the device; and by means of adjusting the heights of and the working distance between the total internal reflection spherical lens and the GRIN lens, the collimation of an output beam of an LD / LED is realized. A beam is collimated and shaped by means of the device, thus reducing the output light loss of the LD / LED, and improving the lighting effect and thermal stability of an LD / LED illumination light source. The device has a compact structure, rapidly and easily collimates and shapes the beam, and has a good collimation effect.

The invention belongs to the technical field of polymer light diffusion plates, and relates to a micro-nano composite structure polymer light diffusion plate and a preparation method and application thereof.The preparation method comprises the following steps that S1, an aluminum substrate is sequentially subjected to high-strength oxidation, denudation, mild oxidation and chambering treatment; constructing an aluminum oxide substrate with a micron pit and ordered nano gradient hole composite structure; s2, nickel is deposited on the aluminum oxide substrate through electrochemical deposition; further modifying fluorosilane to obtain a flexible reusable nickel template; s3, coining a flexible reusable nickel template on the polymer plate, or spin-coating the pre-polymerized precursor on the surface of the polymer plate and then coining; and after curing, stripping the flexible reusable nickel template to obtain the polymer light diffusion plate with the micro-nano composite structure. The micro-nano composite structure polymer light diffusion plate prepared by the invention has relatively high total light transmittance and diffusion light transmittance, has efficient radiation cooling and super-hydrophobic antifouling capabilities, and is used in LED illumination display and / or heat dissipation.

A multi-color LED illumination device and specifically a lens comprising a cylindrical opening extending into the lens from a light entry region at which one or more LEDs are configured. A concave spherical surface extends across the entirety of the light exit region of the lens, and a TIR outer surface shaped as a CPC extends between the light entry region and the light exit region. There are various diffusion surfaces placed on the sidewall surface of the cylindrical opening, as well as its upper planar surface and the exit surface of the lens. Lunes can also be configured on the sidewall surfaces of the cylindrical opening. The combination of lunes, diffusion elements, and the overall configuration of the lens provides improved color mixing and output brightness using three interactions in a first portion of light and two interactions in a second portion of light. Those interactions includes two refractions either with an intermediate reflection or not, all of which are necessary to achieve the improved performance of the multi-color LED illumination device and lens hereof.

The invention discloses an LED lighting electricity consumption abnormity monitoring method and system based on the Internet of Things, and relates to the technical field of intelligent lighting and energy-saving control. The system comprises a power utilization detection terminal, a wireless communication module, a data management platform, a front-end display terminal and an early warning module, and the power utilization detection terminal integrates a current sensor, a voltage sensor, an illuminance sensor and a control module and is used for collecting real-time power utilization information and environmental parameters of LED lighting equipment; the wireless communication module is used for uploading the collected data to a remote server; the data management platform analyzes the collected data, compares the data with an energy-saving threshold value set by the system, and judges whether an abnormal power consumption condition exists or not; the early warning module sends alarm information through instant messaging means such as a nailing interface, and assists operation and maintenance personnel in positioning abnormal equipment in time and taking energy-saving optimization measures. The system has the characteristics of energy conservation, high efficiency, intelligent monitoring and timely early warning, and is suitable for various indoor and outdoor LED illumination application scenes.

The utility model discloses a DC-DC boost circuit used for LED illumination, which adopts a three-pin inductor realized by a first coil and a second coil to replace a traditional two-pin inductor of a single coil, and connects a drain electrode of an MOS tube in a switch control circuit to a second connecting end of the inductor, that is, the drain electrode of the MOS tube is connected with an output end of the DC-DC boost circuit through the second coil. At the moment, the maximum voltage capable of being output by the output end of the DC-DC booster circuit is related to the turn number ratio N of the second coil to the first coil, N = N2 / N1, N1 is the coil turn number of the first coil, N2 is the coil turn number of the second coil, the larger N is, the higher the maximum voltage capable of being output by the output end of the DC-DC booster circuit is, and the larger N is. The value of N is set, so that the maximum voltage output by the output end of the DC-DC booster circuit can exceed the withstand voltage of the MOS tube; the driving circuit has the advantages that the driving circuit can be used for driving the LED light-emitting module with the working voltage higher than that of the MOS tube withstand voltage in the switch control circuit, and the application range is wide.

The application relates to the technical field of isotope detection, in particular to an isotope abundance and ratio detection device and method based on molecular emission spectrum. The device comprises a computer and a long-pulse laser unit, an optical path transmission unit, an LED illumination focusing unit, a three-dimensional displacement table and a spectrometer connected with the computer. The existing viewpoint considers that long-pulse laser is not conducive to micro-area excitation and high-resolution spectrum acquisition due to its wide pulse width, and is less applied in isotope subtle spectral line difference identification. The application breaks through the molecular emission cascade mechanism, enhances the signal intensity, realizes the possibility of micro-area high-resolution isotope molecular detection, generates plasma by in-situ laser ablation, induces molecular emission spectrum, realizes rapid, accurate and real-time in-situ detection of the isotope abundance and ratio in the sample. The device has few optical elements, simple structure and convenient optical path adjustment, and is conducive to miniaturization and on-site application promotion.

A photochemical reactor can include a plurality of flow cells whose illuminated internal surfaces coincide with a Φ = Φ * iso-flux boundary. Identical cells can be connected by short, small-diameter interconnects to form a cell chain of pitch p, and multiple chains can be arranged in parallel to meet throughput while maintaining residence-time and pressure-drop limits. Each cell can be illuminated by opposed, orthogonally oriented LEDs in 2-LED, 4-LED, or 6-LED topologies. In some embodiments, 6-LED illumination can be provided by a wireless cube LED apparatus having six emitters on orthogonal faces, a centrally located receiver coil, rectifier, and current driver. The cube can insert into keyed pockets that set optical standoff δ and orientation. A controller can sweep a transmitter frequency to select an operating frequency f_T* that maximizes received power for the installed receiver-coil geometry.

The utility model relates to the technical field of test tools, in particular to an electrostatic discharge tester fixing tool, which is characterized in that a portal frame is fixed on a base, a vertical lifting sliding table is arranged below the portal frame in a sliding manner, a horizontal product carrying plate is connected to the vertical lifting sliding table, and the product carrying plate is used for placing a product to be tested; a first clamping plate is fixed to the portal frame, a first support plate is vertically fixed to the first clamping plate, a second support plate is vertically fixed to the first support plate, a second clamping plate is connected to the inner side of the second support plate through an adjusting screw, and the position of the second clamping plate corresponds to the position of the first clamping plate. An ESD experimental instrument is clamped and fixed between the second clamping plate and the first clamping plate; the portal frame is connected with an LED lighting assembly used for lighting a product. Compared with the prior art, the fixing jig for the ESD tester has the advantages that by arranging a clamping structure for an ESD experimental instrument, the handheld operation fatigue can be effectively relieved, the product carrier plate can horizontally move and lift, the accurate alignment of an instrument gun head and a product can be favorably realized through the LED illumination and the magnifying glass, and the working efficiency is improved.

The utility model discloses a dimming power supply for outdoor LED lighting, which relates to the field of electric power storage equipment and comprises a device main body, the device main body is of a hollow structure, a partition plate is arranged in the device main body, and the interior of the device main body is divided into an upper slot and a lower slot by the partition plate. According to the utility model, the sliding handle is used for moving, the sliding handle is matched with the induction plate, electric signals are transmitted, different electric transmission plates are triggered, and different lighting plates are lighted, so that the different lighting plates are controlled to be turned on, and at the moment, the lighting voltage is adjusted, and the lighting effect is improved. If the arranged induction rod is in contact with the trigger switch, all the lighting plates can be turned on, at the moment, the brightness of the lighting plates is adjusted, and the needed lighting effect is achieved through cooperation of the lighting plates.

Dual Function Orthodontic Bracket with LED illumination

A scanner is provided having an integrated or retrofitted amber filter placed in front of white illumination LEDs. When an object / item is placed within a field of view of a lens of the scanner, the white illumination LEDs are illuminated and pass through the amber filter, which filters out light in the light spectrum of approximately 340-500 nm. The object / item is illuminated with light approximately above 500 nm and reflected back through a portion of the lens that covers an imaging sensor resulting in an object / item image in the light spectrum approximately above 500 nm, which improves the user experience by removing the glaring blue light component of the white LEDs illumination while not impacting the performance of the object / item recognition when processed for a transaction being conducted at a transaction terminal that is interfaced to the scanner.