522results about "Condensers" patented technology

The invention discloses an illumination device, an illumination adjusting method and wafer detection equipment. The device comprises an illumination light source, an illumination adjusting device and a wafer detection device, wherein the illumination light source comprises a light-emitting surface for exporting illumination light to the outside; the light-emitting surface adjusting part is used for adjusting the position of the light-emitting surface; the objective lens group comprises a plurality of objective lenses which are different in multiplying power and can be mutually switched, calibration data are pre-stored in the controller and comprise pupil plane size information, pupil plane position information and light-emitting surface position information of the objective lenses different in multiplying power, and the controller is used for adjusting the position of the light-emitting surface by the light-emitting surface adjusting part according to the multiplying power information of the objective lenses and the calibration data. According to the invention, rapid and automatic matching between the illumination system and pupil planes of objective lenses with different multiplying powers is realized, and uneven illumination and stray light caused by mismatching of the pupil planes are effectively eliminated.

A penta prism collimator having four freeform surfaces that fold the optical path of light received from a microdisplay collimates light for coupling to a waveguide. In some embodiments, the freeform surfaces are toroidal surfaces made from a single injection-molded element, such as a single piece of plastic. The freeform surfaces collimate the light at a variety of distances from an input pupil of a waveguide, allowing for more freedom of placement within a frame of a WHUD.

A finger-worn wearable ring device may include a ring-shaped housing, a printed circuit board, and a sensor module that includes one or more light-emitting components and one or more light-receiving components. The wearable ring device may further include a communication module configured to wirelessly communicate with an application executable on a user device.

The invention relates to a headlight for a motor vehicle. The headlight includes at least one light source and an optical system with a plurality of optical components to shape the light emitted by the at least one light source and to project it into the space outside the motor vehicle in such a way that a dipped beam distribution of the headlight, which has a light-dark boundary, is produced, and light portions located above this light-dark boundary in order to implement an OS function. The headlight further includes at least one refractive structure on at least one of the optical components and has a plurality of structural elements, the structure being set up to deflect light passing through the optical component into a region above the light-dark boundary in order to implement the OS function, at least one of the structural elements being of annular or partially annular design.

An illumination system 700 having a first and second telescope each comprising a respective array of micro-lenses 604, 606 and 704, 706 which are optically coupled to form respective arrays of micro-l

The utility model provides a groove type compound paraboloid light guide photoelectric integrated lighting device which can overcome the defects, achieve efficient light condensation and effective light guide and combine the power generation function. The groove-type compound paraboloid light guide photoelectric integrated lighting device comprises a groove-type compound paraboloid condenser, a light guide cavity and a groove-type compound paraboloid condenser, wherein the groove-type compound paraboloid condenser is used for focusing part of solar rays and transmitting the solar rays to the light guide cavity; the groove type compound paraboloid condenser is also used for focusing the other part of solar rays on the solar photovoltaic module; a diffuser is arranged at a light outlet of the light guide cavity, and the light guide cavity is used for transmitting light transmitted by the groove type compound paraboloid condenser to the diffuser; the diffuser is used for scattering light into a use environment to realize a lighting function; and the solar photovoltaic module is used for directly converting the gathered light into electric energy.

The invention relates to a method for determining position information relating to an object that has at least one surface for reflecting electromagnetic radiation and that is located in a vehicle, the method including the following: detecting, by means of at least one sensor, in particular at least one camera, electromagnetic radiation reflected from the at least one reflective surface of the object and originating from one or more vehicle-mounted sources of the electromagnetic radiation; determining, detecting or retrieving design details relating to the object; and determining position information relating to the object from the reflected electromagnetic radiation using the design details relating to the object and position information from the one or more vehicle-mounted sources of the electromagnetic radiation and the at least one sensor.

The invention relates to a lighting device comprising a lighting module (2) including an optical output (22) configured to emit a light beam (5) having an angular spread, said module (2) comprising a light source (20) configured to generate the light beam and an optical diffuser (21) arranged to receive and diffuse the beam towards the optical output (22), such that the downstream value (θ2) of the angular spread downstream of the diffuser is greater than the upstream value (θ1) of the angular spread upstream of the diffuser. A control module (3) is configured to emit a control signal (CTRL) having an alarm value when the value of the angular spread of the light beam emitted by the optical output (22) passes below a first threshold, the control module (3) comprising a photoreceptor (30) optically coupled to the optical output (22) and configured to measure a light intensity, wherein the control module (3) is configured to output the control signal (CTRL) having the alarm value when the value of the light intensity falls below a second threshold, the device (1) further comprising a control circuit (4) configured to deactivate the light source (20) upon reception of the control signal (CTRL) having the alarm value. The invention also relates to an imaging system comprising such a device.

Provided is an optical device including: a lens including a first surface and a side surface; a display device disposed on a first side surface among the side surface of the lens and displaying a first image in a first region and a second image in a second region; a first reflector disposed in the lens and reflecting the first image incident on the first side surface of the lens to the first surface; a second reflector disposed in the lens and reflecting the second image incident on the first side surface of the lens to the first surface; a first condenser disposed between the lens and the first region of the display device and focusing the first image on the first reflector; and a second condenser disposed between the lens and the second region of the display device and focusing the second image on the second reflector.

A light source module includes a substrate, light sources positioned on an upper surface of the substrate, and an optical member including light control parts and positioned above the substrate such that the light sources are arranged between the substrate and the optical member.

An optical device comprises a first optical element (101), a second optical element (102), and a third optical element (103). The first optical element is rotatable with respect to the second optical element around a geometric optical axis (108) of the optical device, and the third optical element is linearly moveable with respect to the second optical element along the geometric optical axis. The first and second optical elements comprise surfaces (104, 105) facing towards each other for changing a width of a light distribution pattern in two perpendicular directions in response to rotating the first optical element with respect to the second optical element. The second and third optical elements comprise surfaces (106, 107) facing towards each other for changing the width of the light distribution pattern in only one direction in response to linearly moving the third optical element with respect to the second optical element.

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 present invention provides a light source device and method that utilizes a parallel optical module including an axicon lens to efficiently collect diverging light, collimate it, and adjust the wavelength of the desired light to pass through. A tunable wavelength light source device according to one embodiment of the present invention includes a diffused light source that irradiates diffused light, a parallel light module that collimates the light irradiated from the diffused light source, the parallel light module including an axicon lens, an angle-adjustable bandpass filter module that passes light that has passed through the parallel light module and selects a specific wavelength of the light, and a mixing module that corrects an error in wavelength that is determined by the angle of incidence of light that passes through the angle-adjustable bandpass filter module.

The present invention relates to an emitter having at least one light source and a lens for shaping a beam for illuminating a target area. According to the invention, the lens has a through opening for allowing passage of an unreflected and undeflected direct light beam, on the input side of which the light source is positioned, wherein an inner circumferential surface enclosing said through opening at least partially forms a light entrance surface of the lens, at which some of the light rays emitted by the light source enter the lens, and are deflected by the lens by way of total internal reflection and are emitted as an indirect light beam from a light exit surface, wherein said inner circumferential surface is contoured in such a way that Fresnel reflections occurring at said inner circumferential surface are emitted through said through opening and illuminate the target area as part of the direct light beam and / or of the indirect light beam.

A vehicle headlight (1) includes a light source (20), a meta-lens (30) including a meta-region in which a plurality of nanostructures (35) each having a width smaller than a largest wavelength of light (L) emitted from the light source (20) is arranged and through which the light (L) emitted from the light source (20) is transmitted, and a projection lens (50) through which the light (L) emitted from the meta-lens (30) is transmitted. The meta-lens (30) reduces a divergence angle of the light (L) incident on the meta-region from the light source (20) and emits the light (L), and in a case where the light source (20) is viewed from a side of the projection lens (50) through the meta-region, an image (20') of the light source (20) appears at a position farther than a position of the light source (20), and also appears smaller than an image (20") of the light source (20) seen in a case where a convex lens (30") is arranged instead of the meta-lens (30) so as to emit the light (L) from the light source (20) at the same divergence angle as the light emitted from the meta-lens (30), and the light source (20) is viewed from the side of the projection lens (50) through the convex lens (30").

This utility model discloses a focusing lens for outdoor solar light source collection, including a focusing lens body, a connecting ring, and a mounting base. The connecting ring is located at the bottom of the lens body, and the mounting base is located at the bottom of the connecting ring. A gate cut edge is provided on one side of the connecting ring and the mounting base. This utility model, through an innovative parabolic injection gate design, changes the traditional flow mode where the gate is perpendicular to the product's Z-axis direction. This makes the injection pressure consistent with the direction of the parabolic tangent of the arc vector, allowing the fluid to more easily reach the top of the sphere. Under the same injection pressure, the product surface can more easily reach a saturated state, ensuring that the surface accuracy meets optical requirements. This effectively solves the problem of shrinkage and unsaturation caused by conventional gate designs, improves the accuracy of the optical surface, and thus enhances the focusing effect of the focusing lens, enabling the product to focus at a point and meet the high requirements of outdoor solar light source collection.

The present disclosure is directed to examples of an apparatus. In one embodiment, the apparatus includes a light entry segment that receives light emitted from a light emitting diode (LED), a total internal reflection (TIR) segment to reflect the light towards an optical axis of the LED, and a light redirection segment comprising a plurality of light redirecting segments to redirect the light emitted from the light emitting diode and the light reflected by the TIR segment at an angle greater than 45 degrees relative to an optical axis of the LED.

The light guide (110) includes a body (120) having a substantially plane exit surface (112) and an entrance surface (122) configured to capture an incident light flux (F106) emitted by a light-emitting diode (106). The entrance surface (122) includes a central face (124) astride a median plane (M120) and, on each side of the median plane (M120), a first lateral face (131) and a second lateral face (132), so that the incident light flux (F106) is divided into three distinct light fluxes. The body (120) further includes external reflecting faces, each configured to reflect light fluxes associated with each lateral face toward the exit surface (112).

A cap for an optical module includes features that aid in adhesive attachment. In some examples, the cap includes a standoff configured to initiate capillary action upon contacting adhesive on a substrate to move the cap toward the substrate and an alignment feature configured to control lateral movement of the cap with respect to the substrate as the capillary action moves the cap toward the substrate. In other examples, the cap includes a standoff configured to initiate movement of an adhesive away from a substrate via surface tension and wetting upon contacting the adhesive and an alignment feature is configured to control lateral movement of the cap with respect to the substrate as the adhesive moves away from the substrate.

An optical product comprising a base member and an optical multilayer film formed directly on or indirectly above a film formation surface of the base member. The optical multilayer film reflects light on a short wavelength side and suppresses reflection of light on a longer wavelength side than the light on the short wavelength side, and has a first layer to an eighth layer counted from the base member side, the first layer is a first Al layer, the second layer is a first low-refractive-index layer, the third layer is a first high-refractive-index layer, the fourth layer is a second low-refractive-index layer, the fifth layer is a second Al layer, the sixth layer is a third low-refractive-index layer, the seventh layer is a second high-refractive-index layer, and the eighth layer is a fourth low-refractive-index layer.

This invention relates to a head-up display for a vehicle, comprising an imaging unit for generating an image and an optical unit for projecting the image through a mirror unit. The imaging unit (1) has a folding mirror arranged at an angle of attack between the light source and a display element transmitted through the light source, relative to the propagation direction of light incident from the light source onto the folding mirror. The folding mirror has microstructures having first mirror surfaces arranged at a first angle different from the angle of attack of the folding mirror, the microstructures being spaced apart from each other in a manner forming gaps, and second surfaces arranged at a second angle within these gaps. A polarizer guides first-polarized light to the display element and second-polarized light into these gaps. A phase delayer converts the polarization of the light guided into these gaps into the first polarization. The light guided into the gaps is directed toward the display element after passing through these gaps.

An amplified laser device is provided with one or more Micro-Electro-Mechanical System (MEMS) Micro-Mirror Arrays (MMAs) having tip, tilt and piston capability positioned on either side of the optical amplifier to correct the profile of the beam to improve the gain performance of the optical amplifier or to compensate for atmospheric distortion while steering the amplified beam over a FOR. The MEMS MMAs may be positioned in front of, behind or on both sides of the amplifier. The MEMS MMAs can be configured to optimize the combined amplifier performance, static and time varying, and compensation for atmospheric distortion together or separately.

A packaged light emitting diode (109) comprises a light emitting diode die (110) and a cylindrical lens (112). The cylindrical lens is provided directly over a light emitting surface of the light emitting diode die. The cylindrical lens (112) is advantageously provided as a truncated substantially oblate ellipsoidal lens (112a) in a body having two first truncations (114) and one second truncation (116). As an alternative, the cylindrical lens (112) is provided as an aspherical lens (112b) in a modified ellipsoidal body having again two first truncations (114) and one second truncation (116). Light emitted through the lens (112, 112a; 112, 112b) has a narrow angular distribution along a first axis and a broad angular distribution along a second axis, orthogonal to the first axis. A touch sensitive apparatus comprising one or more such packaged light emitting diodes, being integrated within a top light-guiding plate (10) of said apparatus, is also described.

A method for operating a high-resolution headlight of a vehicle, wherein the headlight is configured to project symbols (1, 2, 3) into the exterior space of the vehicle, and wherein the method comprises the following steps: in a first period, a first symbol (1) is projected into the exterior space of the vehicle; in a second period, a second symbol (2) is projected into the exterior space of the vehicle, wherein the second symbol (2) differs from the first symbol (1) and wherein the second period is temporally arranged after the first period; in a third period, which is temporally arranged between the first and the second period, a temporally changing third symbol (3) is projected into the exterior space of the vehicle, wherein the temporal change of the third symbol (3) corresponds to a transition from the first symbol (1) to the second symbol (2) by morphing.

The present disclosure relates to an illumination optics system for a wearable AR display system, the illumination optics comprising: a spatial light modulator and a plurality of illumination sources; wherein the illumination sources are arranged to illuminate the spatial light modulator, the spatial light modulator is arranged to modulate light from the illumination sources; and wherein light from each of the plurality of illumination sources is mutually incoherent. The disclosure also relates to a wearable augmented reality display comprising the illumination optics system.

The invention relates to an illumination device (10) for generating linear illumination in a longitudinal direction, comprising: a lens element (12) defining an optical center plane (16) in the longitudinal direction and having a constant cross-sectional profile over at least one section; one or more light sources (14, 14 ') arranged on one side of the lens element in the longitudinal direction, the lens element having a transparent lens body, the lens body comprising: one or more coupling-in surfaces (60, 61, 62) facing the light sources through which light emitted by the light sources enters the lens body; one or more reflective surfaces (68, 69) on which at least part of the coupled light is totally reflected within the lens body; and one or more coupling-out surfaces (70, 71, 72) through which the coupled-in light exits from the lens body, and wherein the lens element and the one or more light sources are arranged such that light exiting from the lens body through the coupling-out surfaces converges.

A beam splitter lens (1) for the production of a multi-beam emitter, the beam splitter lens comprising at least two simple lenses (3a, 3b, 3c, 3d), each simple lens being able to project a collimated beam (23a, 23b, 23c, 23d) from light captured at a focal point defined by the configuration of the lens, Each simple lens is configured so that it possesses its own individual focal point (4a, 4b, 4c, 4d), which is distinct from the focal point of another lens.