12 results about "Bicone" patented technology

A broadband omni-directional bicone antenna. The antenna can comprise conductive surfaces of conical voids provided within a solid dielectric structure. The outside surface of the solid structure can support a radio frequency (RF) lens geometry operable for beam forming. The beam forming can modify the elevation pattern of the electromagnetic radiation from the bicone antenna. The solid dielectric structure may be machined or molded from a single piece of material. The conical voids provided within the solid structure can be metallized to provide conductive bicone radiators. The outer surface beam shaping lenses can be zoned or continuous and can provide elevation patterns with increased gain, cosecant squared falloff, or various other patterns. The beam shaping lens may be formed from any low-loss dielectric. Alternatively, the lens may be formed from a less dense material such as dielectric foam that can support radial conductive beam forming vanes.

The invention relates to the technical field of optical design, in particular to a design method of a deformable optical system, which comprises the following steps of: calculating focal lengths of the deformable optical system on an XOZ plane and a YOZ plane respectively according to a deformation ratio of the deformable optical system, and selecting a combination form of lenses as a combination of a rotational symmetric lens and a double-conical-surface lens; the method comprises the following steps: designing a double-conical-surface lens in a lens combination, determining the position of the double-conical-surface lens in the lens combination, designing a first optical subsystem on an XOZ plane and a second optical subsystem on a YOZ plane respectively, combining the first optical subsystem and the second optical subsystem to obtain a deformed optical system, and performing system optimization on the deformed optical system to obtain a final deformed optical system. The deformable optical system designed by the invention has the advantages of high optimization degree of freedom, strong aberration correction capability, no additional lens, light structure and space saving.

The present invention relates to the field of optical design technology and specifically provides a method for designing an anamorphic optical system. Based on the deformation ratio of the anamorphic optical system, the focal lengths of the anamorphic optical system in the XOZ plane and the YOZ plane are calculated. A rotationally symmetric lens and a biconical lens combination are selected, and the position of the biconical lens in the lens combination is determined. A first optical subsystem in the XOZ plane and a second optical subsystem in the YOZ plane are designed, respectively. The first and second optical subsystems are combined to obtain the anamorphic optical system, and the anamorphic optical system is then systematically optimized to obtain the final anamorphic optical system. The anamorphic optical system designed by the present invention has a high degree of optimization freedom, strong aberration correction capability, requires no additional lenses, and has a lightweight structure that saves space.

A container for hermetically sealing certified reference materials includes a top, a bottom, and a sidewall spanning between the top and the bottom to define an interior. The container further includes an opening disposed in an upper surface of the top that provides access to the interior. The container also includes a depressed ring formed in the upper surface of the top, the depressed ring may be concentric with the opening. The container includes an induction seal bonded to the upper surface of the top of the container, wherein the induction seal is at least partially disposed in the al least one depressed ring. An intermediate portion of the container disposed between the top and the bottom may have a generally truncated bicone shape. The container may also include a set of threads proximate to the top to enable a screw cap to be attached to the container.

Optoelectronic sensor with a light transmitter (1) for emitting a light signal through a collimator (2) into an object area (3) on a first optical axis (4), with a receiver (5) and a receiver lens (6) for receiving the light signal reflected by an object on a second optical axis (7), wherein the receiver lens (6) contains a main lens (8) for imaging the object area (3) and an additional lens (9) for detecting the near range, wherein the additional lens (9) has a two-dimensionally parameterizable freeform surface which directs the light more strongly in the direction of the second optical axis (7), the closer a reflecting object is to the sensor, characterized in that the additional lens (9) is arranged downstream of the main lens (8) in the beam path and is raised with respect to a surface of the main lens (8) facing the receiver (5).a biconic surface (10) refracting rays from the near field with two different focal lengths f1 and f2, and a surface (11) reflecting rays from the near field, wherein the receiver lens (6) is penetrated by rays reflected from the surface (11) in such a way that the rays reflected from the surface (11) are refracted at the biconic surface (10) and directed onto the receiver (5).

Optoelectronic sensor with a light transmitter (1) for emitting a light signal through a collimator (2) into an object area (3) on a first optical axis (4), with a receiver (5) and a receiver lens (6) for receiving the light signal reflected by an object on a second optical axis (7), wherein the receiver lens (6) contains a main lens (8) for imaging the object area (3) and an additional lens (9) for detecting the near range, wherein the additional lens (9) has a two-dimensionally parameterizable free-form surface which directs the light more strongly in the direction of the second optical axis (7), the closer a reflecting object is to the sensor, characterized in that the additional lens (9) is arranged downstream of the main lens (8) in the beam path and is raised with respect to a surface of the main lens (8) facing the receiver (5).a biconic surface (10) refracting rays from the near field with two different focal lengths f1 and f2, and a surface (11) reflecting rays from the near field, wherein the receiver lens (6) is penetrated by rays reflected from the surface (11) in such a way that the rays reflected from the surface (11) are refracted at the biconic surface (10) and directed onto the receiver (5).

Systems and methods are provided for improving overall vision in patients suffering from a loss of vision in a portion of the retina (e.g., loss of central vision) by providing a piggyback lens which in combination with the cornea and an existing lens in the patient's eye redirects and / or focuses light incident on the eye at oblique angles onto a peripheral retinal location. The piggyback lens can include a redirection element (e.g., a prism, a diffractive element, or an optical component with a decentered GRIN profile) configured to direct incident light along a deflected optical axis and to focus an image at a location on the peripheral retina. Optical properties of the piggyback lens can be configured to improve or reduce peripheral errors at the location on the peripheral retina. One or more surfaces of the piggyback lens can be a toric surface, a higher order aspheric surface, an aspheric Zernike surface or a Biconic Zernike surface to reduce optical errors in an image produced at a peripheral retinal location by light incident at oblique angles.

The present invention relates to an optical structural component (1) for minimizing or preventing bird strikes. The optical structural component (1) comprises a carrier element (2), a high-reflection area (3) and a reflection area (4). The optical structural component is characterized in that a biconical reflectivity difference between a first biconical reflectivity of the high-reflection area (3) and a second biconical reflectivity of the low-reflection area (4) is greater than or equal to 5%, and a VIS transmittance ratio between a first VIS transmittance and a second VIS transmittance is greater than or equal to 70% and less than or equal to 200%.

[Task] A display device and a head-up display device will be provided, which can further increase the uniformity. [Solution] A display device 10, which emits a display light L representing an image, is provided with a light source 19 which emits an illumination light IL, a third lens 53 which collimates the illumination light IL from the light source 19, surfaces 51i, 51o, 52i, 52o which are distributed on the light axis of the illumination light IL which has been collimated by the third lens 53 and are positioned on the light axis of the collimated illumination light IL, and a display surface 18a which receives the illumination light IL distributed by the surfaces 51i, 51o, 52i, 52o and emits the display light L, and is provided in an orientation in which it is inclined with respect to the light axis of this emitted display light L. One of the surfaces 51i, 51o, 52i, 52o is a Fresnel lens surface, which is provided in an orientation in which it runs along the display surface 18a.One of the surfaces 51i, 51o, 52i, 52o other than the Fresnel lens surface is a cylindrical lens surface or a biconical lens array surface.

The present invention discloses a device for detecting the wall thickness and wall thickness difference of a double cone, comprising a workbench, a computer, a double cone positioning seat, a large cone measuring assembly and a small cone measuring assembly; the double cone positioning seat, the large cone measuring assembly and the small cone measuring assembly are installed on the workbench, the double cone positioning seat clamps the double cone workpiece and enables the double cone workpiece to rotate; the large cone measuring assembly and the small cone measuring assembly are arranged close to the large end of the double cone workpiece; the large cone measuring assembly and the small cone measuring assembly can respectively detect the wall thickness of the large cone part and the small cone part of the double cone workpiece. The present invention can automatically detect the wall thickness of the double cone, automatically read data, automatically analyze, process and evaluate, automatically save and output, reduce the influence of human factors on the measuring structure, greatly improve the measurement accuracy, and have a high degree of automation, simplify the detection process, and improve the detection work efficiency.

The invention discloses a front flat type free ring curved surface myopia correction lens for XR glasses and a manufacturing method, the front flat type free ring curved surface myopia correction lens comprises a lens base body, the lens base body is provided with a lens front surface and a lens rear surface, and the lens front surface is arranged to be an optical plane; the rear surface of the lens is arranged to be a free ring curved surface, the free ring curved surface is arranged to take a biconical curved surface as a substrate and superpose XY polynomial high-order terms, and the free ring curved surface is used for synchronously correcting defocus, astigmatism, field curvature and distortion in a full view field; according to the lens, the front surface optical plane is adopted to achieve accurate attachment to a display module, the rear surface is of a free ring curved surface structure, a lens-eye combined optical model and a global optimization algorithm are combined, cooperative correction of full-view-field aberration is achieved, and the peripheral view definition and wearing comfort are remarkably improved.

The invention relates to the technical field of radiation measurement, in particular to a visible-terahertz low-frequency-band bispectral radiation synchronous measurement optical system, which comprises a main reflector which is a double-conical-surface reflector, is provided with different curvature radiuses and cone coefficients in the meridian direction and the sagittal direction, and is used for receiving wide-spectrum radiation; forming a primary light spot comprising a short wave band and a long wave band; the double-plane auxiliary reflecting mirror is used for carrying out amplitude separation on the light beams of the short-wave band and the long-wave band in the initial light spots according to the space direction; and the final reflecting mirror is also a double-conical-surface reflecting mirror and is used for carrying out refocusing and aberration correction on the short-wave-band light beam and the long-wave-band light beam respectively and guiding the light beams to different areas which are spatially isolated on the focal plane detector. According to the system and system disclosed by the embodiment of the invention, synchronous imaging of two wavebands in the same view field and area is realized, a space registration error is effectively avoided, and data space consistency and time synchronization of multiband radiation measurement are remarkably improved.