13 results about "Optical routing" patented technology

This disclosure discloses a photographic optical system comprising five lenses. The five lenses, arranged sequentially from the object side to the image side along the optical path, are a first lens, a second lens, a third lens, a fourth lens, and a fifth lens. Each of the five lenses has an object-side surface facing the object side and an image-side surface facing the image side. The first lens has positive refractive power. The object-side surface of the second lens is concave near the optical axis. The fifth lens has negative refractive power, and its image-side surface is concave near the optical axis. Under certain conditions, the photographic optical system can simultaneously meet the requirements of miniaturization and high image quality. This disclosure also discloses an image-capturing device having the above-described photographic optical system and an electronic device having the image-capturing device.

A communication system that includes a master communication device, a service communication device, and passive optical routing devices is provided. The master communication device obtains first signal from data source or modem and directs first laser beam carrying the first signal in a downstream path to the service communication device directly or via the plurality of passive optical routing devices. The service communication device demodulates the first signal from the first laser beam, re-modulates the demodulated first signal into a plurality of different radio frequency (RF) signals associated with different communication protocols having different communication ranges, and serves a plurality of end-user devices based on wireless communication capabilities of the plurality of end-user devices and the re-modulation of the demodulated first signal into the plurality of different RF signals.

An image capturing optical system includes seven lenses. The seven lenses are sequentially arranged along an optical path from an object side to an image side as a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. The seven lenses respectively have an object side surface facing an object side direction and an image side surface facing an image side direction. The third lens has a negative refractive power. The fifth lens has a concave object side surface at a vicinity of an optical axis. The sixth lens has a positive refractive power. The seventh lens has a negative refractive power. The seventh lens has a convex object side surface at a vicinity of an optical axis. The seventh lens has a concave image side surface at a vicinity of an optical axis, and the image side surface of the seventh lens has at least one inflection point. When certain conditions are satisfied, the image capturing optical system can simultaneously satisfy the requirements of miniaturization and high imaging quality. The present disclosure also discloses an image capturing device having the image capturing optical system and an electronic device having the image capturing device.

This disclosure presents a camera optical lens assembly comprising eight lenses. The eight lenses are arranged sequentially from the object side to the image side along the optical path: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, and an eighth lens. Each of the eight lenses has an object-side surface facing the object side and an image-side surface facing the image side. The first lens has negative refractive power. The image-side surface of the second lens is concave near the optical axis. The object-side surface of the fifth lens is convex near the optical axis. The sixth lens has negative refractive power. The image-side surface of the sixth lens is concave near the optical axis. The seventh lens has positive refractive power. The image-side surface of the eighth lens is concave near the optical axis. The image-side surface of the eighth lens has a point of inflection. Under certain conditions, the camera optical lens assembly can simultaneously meet the requirements of wide viewing angle, miniaturization, and high image quality. This disclosure also discloses an image-capturing device having the above-described camera optical lens assembly and an electronic device having the image-capturing device.

A waveguide optical splitter comprises a main light path extending along the light source transmission direction and a plurality of optical fibers arranged in the main light path for transmitting the light source; a plurality of light splitting path groups are connected to the main light path, the main light path is formed by the one end of the plurality of optical fibers, each light splitting path group is formed by the other end of the plurality of optical fibers grouped in different numbers, and the plurality of light splitting path groups are arranged around the axis of the main light path; the number of optical fibers in the light splitting path group increases successively from inside to outside along the radial direction of the main light path; compared with the prior art, the number of optical fibers in the plurality of light splitting path groups is different, and the number of optical fibers in the light splitting path increases successively from inside to outside along the radial direction of the main light path; when the light source enters the optical splitter, the number of optical fibers in the outer ring of the light splitting path is more than that in the inner ring of the light splitting path, so that the light intensity of the light source entering the plurality of light splitting path groups of the optical splitter is uniformly distributed, thereby improving the uniformity of the light source transmission and improving the effect of the light source transmission.

The application discloses an optical path switching device and method, an optical handle and a laser treatment instrument, and relates to the technical field of optics. The optical path switching device comprises a motor, a first reflector, a first limiting module and a driving controller. The distance between the first reflector fixed on the rotating shaft of the motor and the first limit is detected through the first limiting module, so that when the motor drives the first reflector to a position at a first preset distance from the first limit, the rotating speed of the motor is automatically reduced, and the first reflector moves at a reduced speed towards the first limit until it stops at the first limit, so that the first reflector at the first limit can adjust the transmission path of the preset wavelength light to a second preset optical path. Since the speed of the first reflector moving to the first limit gradually decreases, the first reflector can accurately stop at the first limit, the error caused by inertia when the motor stops rotating is reduced, and the accuracy of the optical path switching is improved.

This invention proposes a bidirectional synchronous high-speed imaging and diagnostic system for electric thruster plasma oscillation. It comprises a vacuum chamber, an electric thruster, a vacuum chamber observation window, electric thruster plasma, a reflector assembly, a side-viewing optical path, a high-speed camera, a data processing system, and a high-speed camera's imaging range and a front-viewing optical path. The electric thruster, vacuum chamber observation window, and reflector assembly are bolted together inside the vacuum chamber. The electric thruster plasma is generated by the electric thruster and adheres to its outer surface. The side-viewing and front-viewing optical paths are formed by the reflector assembly. The high-speed camera is placed outside the vacuum chamber, with its imaging range directly facing the vacuum chamber observation window to capture the side-viewing and front-viewing optical paths. The electric thruster and its plasma are the subjects of the imaging. Compared to traditional bidirectional synchronous high-speed imaging, this invention establishes a bidirectional optical path to simultaneously introduce images of the side and front of the electric thruster into the lens of a single high-speed camera, requiring only a single high-speed camera. This reduces the financial and time costs of experiments and improves research efficiency.

A photographic optical lens assembly includes seven lenses. The seven lenses are sequentially arranged along an optical path from an object side to an image side as a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. The seven lenses respectively have an object side surface facing an object side direction and an image side surface facing an image side direction. The second lens object side surface is convex at a vicinity of an optical axis, and the second lens image side surface is concave at the vicinity of the optical axis. The fifth lens has positive refractive power. The seventh lens has negative refractive power, and the seventh lens object side surface is concave at the vicinity of the optical axis. The photographic optical lens assembly further includes a stop, and the stop is located between the second lens and the third lens. When certain conditions are met, the photographic optical lens assembly can simultaneously meet the requirements of miniaturization and high imaging quality. The disclosure also discloses an image capturing device having the above photographic optical lens assembly and an electronic device having the image capturing device.

A camera lens assembly includes seven lenses. The seven lenses are sequentially arranged along an optical path from an object side to an image side as a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens. The first lens has positive refractive power, and a first lens object side surface is convex at a vicinity of an optical axis. The second lens has negative refractive power. A third lens object side surface is convex at a vicinity of an optical axis. A sixth lens object side surface is convex at a vicinity of an optical axis, a sixth lens image side surface is concave at a vicinity of an optical axis, and the sixth lens has at least one inflection point. The seventh lens has negative refractive power, and a seventh lens object side surface is concave at a vicinity of an optical axis. When certain conditions are met, the camera lens assembly can simultaneously meet the requirements of miniaturization, large imaging area and high imaging quality. The disclosure also discloses an image capturing device having the camera lens assembly and an electronic device having the image capturing device.

This application relates to the field of optical communication and optical network technology, and discloses an optical routing method, computer device, and readable storage medium. The method includes acquiring optical routing information, which includes an optical routing path and control parameters of each control node in the optical routing path; determining the initial spatial phase distribution required for the optical signal to transmit along the optical routing path based on the control parameters; generating an optical signal according to the initial spatial phase distribution and sending the optical signal to a first control node in the optical routing path; the first control node adjusting the initial spatial phase distribution to a first spatial phase distribution based on its own first control parameters, and controlling the optical signal transmission along the optical routing path based on the first spatial phase distribution. Its beneficial effect is that it can improve the response speed during optical signal transmission.

To provide an optical system and image projection device that can improve adjustment accuracy. [Solution] The optical system 100 according to the embodiment comprises a first optical system 110 which is a refractive optical system including a plurality of lenses, and a second optical system 120 which includes one optical element 121 having a transmitting surface and a reflecting surface, and is an optical system 100 which magnifies and images an image displayed on an image display element 130 onto a projection surface as a conjugate surface of the image display element 130 through the first optical system 110 and the second optical system 120, and is an optical system 100 which images the image displayed by the first optical system 110 as an intermediate image 133, and magnifies the intermediate image 133 with the second optical system 120 and images it onto a projection surface 140, and the second optical system 120 includes a first transmitting surface T1, a first reflecting surface R1, a second reflecting surface R2 and a second transmitting surface T2 in the order in which the light of the image from the first optical system 110 passes, and the optical path between each surface is formed of one medium, and the first reflecting surface R1 and the second transmitting surface T2 are formed of one continuous surface.

The present disclosure discloses a photographic optical lens assembly, which includes three lenses. The three lenses are sequentially arranged along an optical path from an object side to an image side as a first lens, a second lens and a third lens. The three lenses respectively have an object side surface facing an object side direction and an image side surface facing an image side direction. The first lens has a positive refractive power, the object side surface of the first lens is convex at a vicinity of an optical axis, and the image side surface of the first lens is concave at the vicinity of the optical axis. The third lens has a negative refractive power, the image side surface of the third lens is concave at the vicinity of the optical axis, and the image side surface of the third lens has at least one inflection point. When certain conditions are met, the photographic optical lens assembly can simultaneously meet the requirements of miniaturization and high imaging quality. The present disclosure also discloses an image capturing device having the above photographic optical lens assembly and an electronic device having the image capturing device.