Showing papers on "Illumination angle published in 2014"

Refining Space Object Radiation Pressure Modeling with Bidirectional Reflectance Distribution Functions

Abstract: High-fidelity orbit propagation requires detailed knowledge of the solar radiation pressure on a space object. The solar radiation pressure depends not only on the space object’s shape and attitude, but also on the absorption and reflectance properties of each surface on the object. These properties are typically modeled in a simplistic fashion, but are here described by a surface bidirectional reflectance distribution function. Several analytic bidirectional reflectance distribution function models exist, and are typically complicated functions of illumination angle and material properties represented by parameters within the model. In general, the resulting calculation of the solar radiation pressure would require a time-consuming numerical integration. This might be impractical if multiple solar radiation pressure calculations are required for a variety of material properties in real time; for example, in a filter where the particular surface parameters are being estimated. This paper develops a method...

Directional absorption by phased arrays of plasmonic nanoantennae probed with time-reversed Fourier microscopy

Abstract: We demonstrate that an ordered array of aluminum nanopyramids, behaving as a phased array of optical antennae, strongly modifies light absorption in thin layers of dye molecules. Photoluminescence measurements as a function of the illumination angle are performed using a time-reversed Fourier microscope. This technique enables a variable-angle plane-wave illumination of nanostructures in a microscope-based setup. Our measurements reveal an enhancement of the light conversion in certain directions of illumination, which indicate the efficient diffractive coupling between the free space radiation and the surface plasmons. Numerical simulations confirm that surface modes supported by the periodic array enhance the intensity of the pump field in the space between particles, where the dye molecules are located, yielding a directional plasmonicmediated enhancement of the optical absorption. This combined experimental and numerical characterization of the angular dependence of light absorption in nanostructures can be beneficial for the design and optimization of devices in which the harvesting of light plays a major role.

Assembly for light sheet microscopy

Abstract: The invention relates to an assembly for light sheet microscopy. Said assembly comprises illumination optics having an illumination lens (5) for illuminating a sample (3), which is located on a sample carrier in a medium (2), wherein the sample carrier is aligned in respect of a flat reference surface (4), over an illumination beam path having a light layer, wherein the optical axis (6) of the illumination optics (5) and the light layer are in a plane which, together with the normal of the reference surface (4), includes an illumination angle (s) different from zero, and detection optics having a detection lens (7) in a detection beam path having an optical axis (8) which, together with the normal of the reference surface (4), includes a detection angle (5) which is different from zero. The assembly furthermore comprises a separating layer system having at least one layer made of a specified material having a specified thickness which separates the medium (2) from the illumination lens (5) and the detection lens (7), wherein the separating layer system contacts the medium (2) together with a base area (9) aligned parallel to the reference surface (4), at least in the region accessible for the illumination lens (5) and the detection lens (7) for illumination or detection. The assembly finally also comprises a correction lens system having at least one correction lens (10, 11, 12) for reducing such aberrations which occur due to the oblique passage of illumination light and/or light to be detected through interfaces of the separating layer system. In an assembly according to the invention, the correction lens system is arranged between the illumination lens (5) and the separating layer system and/or between the detection lens (7) and the separating layer system.

Flexible mask illumination setup for serial multipatterning in Talbot lithography

Abstract: A flexible illumination system for Talbot lithography is presented, in which the Talbot mask is illuminated by discrete but variable incidence angles. Changing the illumination angle stepwise in combination with different exposure doses for different angles offers the possibility to generate periodic continuous surface relief structures. To demonstrate the capability of this approach, two exemplary micro-optical structures were manufactured. The first example is a blazed grating with a stepsize of 1.5 μm. The second element is a specific beam splitter with parabolic-shaped grating grooves. The quality of the manufacturing process is evaluated on the basis of the optical performance of the resulting micro-optical elements.

Reflection measurement and visual evaluation of the luminosity of skin coated with powder foundation

Abstract: This article aims to identify the essential components of the luminosity of skin coated with powder foundation, based on two processes: reflection measurement and visual evaluation of the skin surface. The luminosity refers to the state of being “luminous,” “brilliant,” or “radiant” of the foundation-coated skin. First, a flat piece of artificial skin is used, and an experimental device is developed to visually evaluate the appearance of the foundation-coated artificial skin at different conditions of viewing angle, illumination angle, and illumination intensity. The luminosity score is analyzed from the point of view of optical reflection. Next, the same assessment of luminosity is executed for real human skin. The luminosity is evaluated for cheek and forehead coated with powder foundation at different observation conditions using another experimental device. Finally, all luminosity scores are analyzed in color spaces to identify the color region relating to luminosity perception. © 2012 Wiley Periodicals, Inc. Col Res Appl, 39, 45–55, 2014

Devices, systems, and methods for classifying materials based on a bidirectional reflectance distribution function

Abstract: Systems, devices, and methods for classifying a sample by material type measure a reflection of a sample at an illumination angle and an observation angle in at least two spectral bands, calculate a feature value for the sample based on an estimated ratio value of the at least two spectral bands of the measured reflection, and classify the sample based on the feature value.

Arrangement for light sheet microscopy

Abstract: The invention relates to an arrangement for light sheet microscopy. Said arrangement comprises an illumination optical unit having an illumination objective (5) for illuminating a sample (3), which is situated on a sample carrier in a medium (2), with a light sheet via an illumination beam path. The optical axis (6) of the illumination objective and the light sheet lie in a plane which forms an illumination angle (β) which is different from zero with the normal to a planar reference surface (4) with respect to which the sample carrier is aligned. The arrangement furthermore comprises a detection optical unit having a detection objective (7) in a detection beam path, the optical axis (8) of which forms a detection angle (δ) which is different from zero with the normal to the reference surface (4). The arrangement finally comprises a separating layer system having at least one layer composed of a predefined material having a predefined thickness which separates the medium (2) from the illumination objective (5) and the detection objective (7), wherein the separating layer system is in contact with the medium (2) with a base surface aligned parallel to the reference surface (4), at least in the region accessible for the illumination objective (5) and the detection objective (7) for illumination and detection, respectively. In such an arrangement, the detection objective (7) comprises a first adaptive optical detection correction element, which is arranged in the beam path or can be introduced into the latter. Alternatively or additionally, the illumination objective (5) comprises a first adaptive optical illumination correction element, which is arranged in the beam path or can be introduced into the latter. The two correction elements make it possible to reduce aberrations which arise on account of the oblique passage of light to be detected and/or of light for illuminating the sample (3) through interfaces of the separating layer system, for a predefined range of detection angles (δ) and/or of illumination angles (β) and/or for a predefined range of the thickness of the at least one layer of the separating layer system.

Microscope and Method for SPIM Microscopy

Abstract: A method for SPIM microscopy with a microscope winch includes (1) an illumination arrangement for illuminating a sample with a substantially planar light sheet, and (2) a detection arrangement for detecting light emitted by the sample with an objective. The sample is displaced through the light sheet in direction of the objective's optical axis, and the sample is illuminated under a first illumination angle and a second illumination angle. A plurality of sample planes are then detected at each illumination angle and stored as at least a first image stack and a second image stack. The image stacks are aligned relative to one another, and are combined in one image stack. A the three-dimensional image stack is projected into a two-dimensional rendering, sample features are aligned, a coordinate transformation is determined, and the coordinate transformation for alignment is applied to the combined image stack.

Smart headlight of matrix type for automobile

Abstract: The present invention relates to a smart vehicle-headlight of a matrix type. In particular, a plurality of LEDs are arranged by columns and rows to form a headlight in a matrix type. An illumination distance and an illumination angle are adjusted to secure a sight according to a straight section, a curved section, and a sloped section of a road on which a vehicle passes during driving, and a driving direction and a driving speed of the vehicle. Moreover, the smart vehicle-headlight changes at least one of colors, brightness, chroma, illuminance, and luminance by sensing a distance between the vehicle and an adjacent vehicle so as to enable to a driver to exactly and stably recognize a safe distance.

Three-dimensional intelligent digitalization generation method and system based on two-dimensional shadow information

Abstract: The invention relates to a three-dimensional intelligent digitalization generation method and system based on two-dimensional shadow information. The method includes the step of generating two-dimensional shadows, the step of building a three-dimensional model and the step of hiding two-dimensional information, wherein in the step of generating the two-dimensional shadows, images or pictures are converted into two-dimensional shadow images through an image processing technology; in the step of building the three-dimensional model, pixels in the two-dimensional shadow images generate two-dimensional point cloud data, third-dimensional coordinate data are given, and three-dimensional point cloud data are sequenced again to form the three-dimensional model; in the step of hiding the two-dimensional information, the three-dimensional point cloud data are itemized in the two-dimensional direction and stacked in the third-dimensional direction to form multiple branches, and perspective projection transformation is carried out on the three-dimensional point cloud data so that information of the two-dimensional shadow images is hidden in the three-dimensional model. By means of the method, the shadow, presented through projection according to the illumination angle, of the three-dimensional model where the two-dimensional shadow information is hidden is of the shape of the original images or pictures.

Phase correlation based local illumination-invariant method for multi-tempro remote sensing image matching

Abstract: . This paper aims at image matching under significantly different illumination conditions, especially illumination angle changes, without prior knowledge of lighting conditions. We investigated the illumination impact on Phase Correlation (PC) matrix by mathematical derivation and from which, we decomposed PC matrix as the multiplication product of the illumination impact matrix and the translation matrix. Thus the robustness to illumination variation of the widely used Absolute Dirichlet Curve-fitting (AD-CF) algorithm for pixel-wise disparity estimation is proved. Further, an improved PC matching algorithm is proposed: Absolute Dirichlet SVD (AD-SVD), to achieve illumination invariant image alignment. Experiments of matching DEM simulated terrain shading images under very different illumination angles demonstrated that AD-SVD achieved 1/20 pixels accuracy for image alignment and it is nearly entirely invariant to daily and seasonal solar position variation. The AD-CF algorithm was tested for generating disparity map from multi-illumination angle stereo pairs and the results demonstrated high fidelity to the original DEM and the Normalised Correlation Coefficient (NCC) between the two is 0.96.

Angle-adjustable polarized LED down lamp

Abstract: The utility model relates to the technical field of LED lighting lamps, in particular to an angle-adjustable polarized LED down lamp which comprises an LED light engine and a down lamp front cover mounted in a light outgoing direction of the LED light engine. A deviated reflection cup is mounted in the down lamp front cover, an angle adjusting structure is arranged between the down lamp front cover and the LED light engine, the down lamp front cover is rotatably connected with the LED light engine through the angle adjusting structure, and the LED light engine and the inner wall face of the deviated reflection cup form a deviation angle. Deviation angle of the LED light engine is adjusted through the angle adjusting structure, and flexible adjusting of illumination angle of the LED light engine is realized; emergent light is ejected after being reflected by the deviated reflection cup, so that emitted light of the angle-adjustable polarized LED down lamp is soft and not dazzling.

Imaging catoptric EUV projection optical unit

Abstract: An imaging catoptric optical unit has at least four mirror, which image an object field in an object plane into an image field in an image plane. A first chief ray plane of the optical unit is prescribed by propagation of a chief ray of a central object field point during the reflection at one of the mirrors. A second chief ray plane of the optical unit is prescribed by propagation of the chief ray of the central object field point during the reflection at one of the other mirrors. The two chief ray planes include an angle that differs from 0. In an alternative or additional aspect, the imaging optical unit, considered via the image field, has a maximum diattenuation of 10% or a diattenuation that prefers a tangential polarization of the imaging light for a respectively considered illumination angle. The result of both aspects is an imaging optical unit in which bothersome polarization influences are reduced during the reflection of imaging light at the mirrors of the imaging optical unit.

Continuous surveillance of points by rotating floodlights

Abstract: Let P and F be sets of n ≥ 2 and m ≥ 2 points in a plane, respectively. We study the problem of finding the minimum angle α ϵ [2Π/m, 2Π] such that one can install at each point of F a stationary rotating floodlight with illumination angle α, initially oriented in a suitable direction, in such a way that, at all times, every target point of P is illuminated by at least one floodlight. All floodlights rotate clockwise at unit speed. We provide bounds for the case in which the elements of P ⋃ F are on a given line, and present exact results for the case in the plane in which we have two floodlights and many target points. We further consider the non-rotating version of the problem and look for the minimum angle α such that one can install a non-rotating floodlight with illumination angle α at each point of F, in such a way that every target point of P is illuminated by at least one floodlight. We show that this problem is NP-hard and hard to approximate.

Illumination optical unit for a metrology system and metrology system comprising such an illumination optical unit

Abstract: An illumination optical unit serves for illuminating objects to be examined by a metrology system. The illumination optical unit has an optical pupil shaping assembly for generating a defined distribution of illumination angles of illumination light over an object field in which an object to be examined can be arranged. An optical field shaping assembly for generating a defined intensity distribution of the illumination light over the object field is disposed downstream of the pupil shaping assembly in the beam path of the illumination light. The field shaping assembly has at least one optical field shaping element arranged in the region of a pupil plane of the illumination optical unit. This results in an illumination optical unit which ensures an illumination which can be set in a defined manner with regard to an intensity distribution and an illumination angle distribution over the entire object field.

Flashlight with adjustable illumination angle

Abstract: The utility model discloses a flashlight with an adjustable illumination angle. The flashlight comprises a body, a lamp holder, an LED lamp set and illumination angle adjusting assemblies. The interior of the body is of a cavity structure, a lithium battery is arranged in the cavity structure, the lamp holder is arranged at the front end of the body and is in a cone shape, the cross section of the lamp holder is sequentially increased from inside to outside, and the interior of the lamp holder is of a cavity structure. The LED lamp set is arranged in the lamp holder and electrically connected with the lithium battery so that a power source can be provided for the LED lamp set to work. The illumination angle adjusting assemblies are arranged along the periphery of the inner wall of the lamp holder, light rays emitted out by the LED lamp set are refracted by the illumination angle adjusting assemblies and are then transmitted to the outer portion of the lamp holder so that illumination can be conducted, the refraction angle of the illumination angle adjusting assemblies can be adjusted, and thus the illumination angle obtained after refraction can be controlled. The flashlight with the adjustable illumination angle is simple in structure, reasonable in design, convenient to operate, adjustable in illumination angle, suitable for various environments and high in practicability.

Sun visor system and automobile with same

Abstract: The utility model provides a sun visor system and an automobile with the same. The sun visor system comprises an automatic sun visor arranged at the top of the automobile, and further comprises a processor, an illumination measurement instrument and a binocular camera. The illumination measurement instrument is used for measuring illumination angle and intensity and is connected with the processor. The processor receives signals of illumination angle and intensity transmitted from the illumination measurement instrument. The binocular camera used for measuring location of eyes of a driver in the automobile is also connected with the processor, and the processor receives location signals of driver's eyes transmitted by the binocular camera. Besides, the automatic sun visor is connected with the processor, the processor sends a control signal to the automatic sun visor according to the illumination angle and intensity and the location information of eyes of the driver, and the automatic sun visor extends and retracts according to the control signal. The sun visor is adjusted according to the illumination automatically, so that the problem of inattention of the driver adjusting the sun visor is avoided, and driving safety and comfort are improved.

Detection device, illunimation, detection method, and method of manufacturing substrate

Abstract: Provided are a detection device that can detect foreign matters adhered to a detection surface of a detected object in a highly precise manner, illunimation, a detection method, and a method of manufacturing a substrate. The detection device of the technology has illumination of light containing blue or purple wavelengths onto a detection surface of a detected object with an illumination angle lower than 10 degrees.

An adjustable sensitivity shadow moiré technique for surface morphology measurement

Abstract: In this paper, an adjustable sensitivity of measurement system based on the shadow moire technique is proposed. In this measurement system, an adjusting mechanism can control the illumination angle to change the moire contour intervals and vary the moire fringe spacing correspondingly. In the experiments of this paper, the suitable density of the moire fringe can effectively reduce the influence of the noise of the image and keep adequate accuracy of the measurement system simultaneously. An accurate evaluation method for determining the sensitivity is proposed for the measurement system. By using the phase stepping technique, the proposed measurement system can analyse the fringe pattern and measure the surface profile accurately. Some samples are measured to validate the feasibility of the proposed system, and the experimental results verify the effectiveness of the developed three-dimensional profilometer to be applied for various microscale measurement applications.

Vehicle headlamp illumination angle detection method, device and system based on vertical plane

Abstract: The invention discloses a vehicle headlamp irradiation angle detection method, device and system based on the vertical face. According to the vehicle headlamp irradiation angle detection method, device and system based on the vertical face, the irradiation image of a vehicle headlamp on the vertical face is obtained by means of a vehicle-mounted front visual angle camera, a detection result including the coordinates of the light beam features of the headlamp on the irradiation image is obtained by means of the image processing algorithm, the direction vector from the origin of the world coordinate system of the headlamp to the light spot formed after the light beam features of the headlamp irradiate on the vertical face is calculated according to the detection result, and headlamp irradiation angle detection is accomplished automatically according to the direction vector from the origin of the world coordinate system of the headlamp to the light spot formed after the light beam features of the headlamp irradiate on the vertical face. Compared with the prior art, the method has the advantage that the method is not limited to specific environment and equipment requirements of a vehicle detection station. Compared with the manual naked-eye adjustment method, the method has the advantage that the accuracy of vehicle headlamp irradiation angle detection is higher.

Novel table lamp with adjustable illumination angle

Abstract: Provided is a novel table lamp with the adjustable illumination angle. Connection sliding blocks are arranged among lamp poles, and therefore a lampshade can be fixed at any spatial position, orientated illumination toward any spatial direction can be achieved, and the problems that the illumination position of a common table lamp can not be fixed easily and the adjustment range of the illumination angle of the common table lamp is limited are solved. The novel table lamp comprises the lampshade, a lampshade fixing rod, the upper lamp pole, the lower lamp pole, the fixed lamp pole, the connection sliding blocks, a lamp holder and a hinge. The friction force of the connection sliding blocks and the lamp poles is utilized for achieving spatial position fixing of the lampshade and orientated illumination. The novel table lamp has the advantages of being simple in structure, simple and elegant in modeling, convenient to use, and capable of being adjusted and fixed to any spatial position flexibly and accurately.

LED spotlight with light uniformizing function

Abstract: The utility model discloses an LED spotlight with a light uniformizing function. The LED spotlight with the light uniformizing function comprises a diffuser plate and a reflection cup, wherein one end of the reflection cup is closed, the other end of the reflection cup is open, the diffuser plate is arranged at the top end of the closed portion of the reflection cup, and according to the distribution curve flux capable of being met by the inner wall of the reflection cup, the distance between the inner wall of the reflection cup and the half light intensity position is 0.2 m, the illumination angle is -30 degrees to 30 degrees, the illumination angle becomes smaller gradually from the half light intensity position to the farthest light intensity position, and the illumination angle of the farthest light intensity position is -10 degrees to 10 degrees. According to the LED spotlight with the light uniformizing function, uniform light mixing of the LED lamp can be achieved, stray light is eliminated after light distribution, the optical efficiency is high, and the efficiency of the spotlight is high.

Detection warning indicator

Abstract: The utility model discloses a detection warning indicator which comprises a body, a sensing module group, and a light-emitting assembly. The body is provided with a first surface, a second surface, and an outer ring surface, wherein the first surface and the second surface are opposite to each other, and the outer ring surface is connected with the first surface and the second surface. The body defines an axial direction according to the outer ring surface. The light-emitting assembly is disposed on the body, and comprises a laser light-emitting element and a control element. The laser light-emitting element can send out laser light which transmits outwards from the outer ring surface of the body along a light-emitting direction. The control element can control the laser light-emitting element to move for changing the light-emitting direction of the laser light. The illumination angle of the laser light can be adjusted through the movement of the control element, thereby guiding the direction of an escape exit more clearly, and bringing convenience to persons for escaping.

Multifunctional illumination flashlight

Abstract: The invention relates to an illumination flashlight, in particular to an illumination flashlight with various illumination functions. The illumination flashlight adopts the following technical scheme that the multifunctional illumination flashlight is characterized in that four walls, positioned in a lamp holder installing accommodating cavity part, of a case are transparent, a lamp holder is rotationally arranged in the lamp holder installation accommodating cavity, and a lamp light reflection region is optionally aligned with a lamp holder cover or the upper and lower sides of the lamp holder installation accommodating cavity of the case when the lamp holder rotates, so the lamp light illumination angle change is realized. Through the adoption of the scheme, the invention aims at overcoming the defects in the prior art to provide the novel multifunctional illumination flashlight capable of being used as a flashlight and capable of being used as a mine lamp.

Laser night vision device capable of time-sharing illumination

Abstract: The utility model discloses a laser night vision device capable of time-sharing illumination. The laser night vision device comprises an illumination module and a camera, wherein the illumination module comprises a laser illuminator, the camera is fixedly arranged, the laser illuminator rotates left and right relative to the camera and is connected with a driving mechanism, and the driving mechanism drives the laser illuminator to rotate. According to the utility model, due to design of the rotatable laser illuminator, illumination light spots can be glanced at within a view field of the camera, and longer illumination distance and larger illumination angle can be ensured; and thus, the laser night vision device can monitor a view field that is longer in distance and larger in area.

Optical-axis fine tuning laser zoom illumination module

Abstract: The utility model relates to an optical-axis fine tuning laser zoom illumination module. The module comprises a semiconductor laser, a collimation optical lens group, a homogenization expanded beam optical lens group and an angle control optical lens group. A front segment of the semiconductor laser is successively provided with the collimation optical lens group, the homogenization expanded beam optical lens group and the angle control optical lens group. A lower end of the semiconductor laser is provided with an optical axis fine tuning apparatus. The optical axis fine tuning apparatus comprises upper and lower support plates. The two support plates are connected through two or more than two spring bolts. The spring bolts are adjusted. A horizontal degree of the optical axis fine tuning apparatus is changed so as to change a horizontal degree of the semiconductor laser. An optical axis direction of the laser zoom illumination module is adjusted so that the optical axis direction is coaxial with a lens optical axis direction of a camera. By using the illumination module, an illumination angle of the laser zoom illumination module matches with a field angle of a camera lens; the illumination angle of the laser zoom illumination module is changed so as to realize monitoring without blind angle at night; an illumination blind area and a ''flashlight effect'' are avoided.

Improvement of image quality by polarization mixing

Abstract: Information about the polarization of light is valuable because it contains information about the light source illuminating an object, the illumination angle, and the object material. However, polarization information strongly depends on the direction of the light source, and it is difficult to use a polarization image with various recognition algorithms outdoors because the angle of the sun varies. We propose an image enhancement method for utilizing polarization information in many such situations where the light source is not fixed. We take two approaches to overcome this problem. First, we compute an image that is the combination of a polarization image and the corresponding brightness image. Because of the angle of the light source, the polarization contains no information about some scenes. Therefore, it is difficult to use only polarization information in any scene for applications such as object detection. However, if we use a combination of a polarization image and a brightness image, the brightness image can complement the lack of scene information. The second approach is finding features that depend less on the direction of the light source. We propose a method for extracting scene features based on a calculation of the reflection model including polarization effects. A polarization camera that has micro-polarizers on each pixel of the image sensor was built and used for capturing images. We discuss examples that demonstrate the improved visibility of objects by applying our proposed method to, e.g., the visibility of lane markers on wet roads.

Support base special for port LED (light-emitting diode) projection lamp

Abstract: The utility model discloses a support base special for a port LED (light-emitting diode) projection lamp. The support base comprises a straight plate, a left connecting plate and a right connecting plate, wherein the left and right connecting plates are positioned on the left and right sides of the straight plate respectively, and are perpendicular to the straight plate; the straight plate and the left and right connecting plates are integrally formed; circular arc angle regulation holes are formed in the left and right connecting plates; angle dials are arranged beside the corresponding circular arc angle regulation holes of the left and right connecting plates, and correspond to the circular arc angle regulation holes; circular connecting through holes are formed in the circle centers of the corresponding circular arc angle regulation holes of the left and right connecting plates. According to the support base, an illumination angle of the LED projection lamp can be accurately positioned at one time by mounting personnel; the support base has the advantages of convenience for use and simple structure.

Apparatus for controlling rear camera of vehicle and method thereof

Abstract: The present invention relates to a device for controlling a rear camera for a vehicle and a method thereof. The control method includes a step of allowing a control unit to receive detection signals from a sensor when a shift lever is shifted into a reverse position and a step of controlling the illumination angle of the rear camera by controlling an angle control unit according to the detection signals. According to the present invention, since the illumination angle of the rear camera is automatically controlled toward an obstacle according to the detection signals of a rear sensor, a driver can easily grasp the situation of the obstacle, thereby improving driver safety and convenience when moving a vehicle backward. [Reference numerals] (AA) Start; (BB) End; (S110) Shift a shift lever into a reverse position?; (S120) Display an image of a rear camera; (S130) Receive detection signals from a rear sensor; (S140) Change the illumination angle of the rear camera according to the detection signals; (S150) Unlock the reverse position of the shift lever?; (S160) Re-shift the shift lever into the reverse position?; (S170) Shift the shift lever into a parking position?; (S180) Set time passes after unlocking?; (S190) Initialize the illumination angle of the rear camera

Indoor LED (Light-Emitting Diode) lamp with adjustable illumination angle and intensity

Abstract: The utility model discloses an indoor LED (Light-Emitting Diode) lamp with an adjustable illumination angle and intensity. The indoor LED lamp comprises an LED power supply, an LED base plate and LED chips arranged on the LED base plate, wherein the LED power supply is electrically connected with the LED chips; the LED base plate is shaped like a hollow cylinder; the LED chips are uniformly distributed on the outer surface of the LED base plate; the LED chips axially arranged are in a chip group; a partition plate outwards radiating and extending is arranged between the two adjacent chip groups; and the tail end of each partition plate is connected with a light deflector plate. The indoor LED lamp disclosed by the utility model has the beneficial effect that most light emitted by the LED chips reaches an illumination area after being refracted by the light deflector plate, and a small part of the light is refracted or transmitted to the surroundings, so that the whole space has weak light, thereby not only keeping high efficiency of an illumination system, but also effectively reducing glaring, improving visual effect and realizing energy conservation and environment protection of a light source for household illumination.