Huawei Technologies Co., Limited

Aac Optics Solutions Pte. Ltd.

Changzhou Raytech Optronics Co., Ltd.

Aac Acoustic Technologies (shenzhen) Co., Ltd.

Qing Zhao

Lei Zhang

Yanmei Wang

Hiroyuki Teraoka

Li Zeng

Hui Wang

Xiaolu Song

Guoxiang Cao

Jun Liu

Wen Sun

Yong Wu

Lei Gao

Yanli Xie

Yi Ji

Junjie Yan

Yanbo Li

Zhen Dong

Ruiqiang Ji

Wei Tian

Tao Tian

Haiming Fan

Jibin Zhou

Yuxiang Zhou

Jinyuan Xie

Xiaosong Hou

Pengxiao Ge

A camera optical lens is provided, including from an object side to an image side: a first lens; a second lens having negative refractive power; a third lens; a fourth lens; a fifth lens; a sixth lens; a seventh lens; an eighth lens; and a ninth lens, wherein the camera optical lens satisfies the following conditions: 2.00≤f1/f≤5.50; and 1.50≤d15/d16≤9.00, where f denotes a focal length of the camera optical lens; f1 denotes a focal length of the first lens; d15 denotes an on-axis thickness of the eighth lens; and d16 denotes an on-axis distance from an image side surface of the eighth lens to an object side surface of the ninth lens. The above camera optical lens can meet design requirements for large aperture, wide-angle and ultra-thinness, while maintaining good imaging quality.

Camera optical lens

The present disclosure discloses a camera optical lens, which includes, from an object-side to an-image side: a first lens having a positive refractive power, a second, third, fourth, fifth, sixth, seventh and eight lens, which satisfies following conditions: 0.95≤f/TTL; −4.00≤f2/f≤−2.00; and 2.50≤(R7+R8)/(R7−R8)≤15.00; where f denotes a focal length of the camera optical lens; TTL denotes a total optical length from an object-side surface of the first lens to an image surface of the camera optical lens along an optic axis; f2 denotes a focal length of the second lens; R7 denotes a curvature radius of an object-side surface of the fourth lens; R8 denotes a curvature radius of an image-side surface of the fourth lens. The camera optical lens can achieve good optical performance while meeting the design requirement for large aperture, long focal length and ultra-thinness (in a camera optical lens with the long focal length).

The present disclosure relates to the field of optical lenses and provides a camera optical lens. The camera optical lens includes, from an object side to an image side: an aperture; a first lens having a positive refractive power; a second lens having a negative refractive power; a third lens having a positive refractive power; a fourth lens having a negative refractive power; a fifth lens having a negative refractive power; a sixth lens having a positive refractive power; and a seventh lens having a negative refractive power. The camera optical lens satisfies following conditions: 3.00&#x2264;v1/v2&#x2264;4.20; and &#x2212;21.00&#x2264;f2/f1&#x2264;&#x2212;5.00, where f1 denotes a focal length of the first lens; f2 denotes a focal length of the second lens; v1 denotes an abbe number of the first lens; and v2 denotes an abbe number of the second lens.

The present disclosure relates to the field of optical lenses and provides a camera optical lens. The camera optical lens includes, from an object side to an image side: 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. The camera optical lens satisfies following conditions: 1.90&#x2264;f/f&#x2264;3.00; f&#x2264;0.00; and 1.55&#x2264;n&#x2264;1.70, where f denotes a focal length of the camera optical lens; fdenotes a focal length of the first lens; fdenotes a focal length of the second lens; and ndenotes a refractive index of the third lens. The present disclosure can achieve high optical performance while achieving ultra-thin, wide-angle lenses having a big aperture.

Camera optical lens including eight lenses of +&#x2212;+&#x2212;+&#x2212;+&#x2212; or +&#x2212;+&#x2212;&#x2212;&#x2212;+&#x2212; refractive powers

The present disclosure relates to the field of optical lenses and provides a camera optical lens. The camera optical lens includes, from an object side to an image side: a first lens having a positive refractive power; a second lens having a negative refractive power; a third lens having a negative refractive power; a fourth lens; a fifth lens; and a sixth lens. The camera optical lens satisfies following conditions: 3.00&#x2264;f2/f3&#x2264;4.00; and 3.00&#x2264;d1/d3&#x2264;5.00. The camera optical lens can achieve a high imaging performance while obtaining a low TTL.

The present disclosure relates to the field of optical lenses and provides a camera optical lens. The camera optical lens includes, from an object side to an image side: a first lens made of a plastic material; a second lens made of a plastic material; a third lens made of a plastic material; a fourth lens made of a glass material; a fifth lens made of a glass material; a sixth lens made of a plastic material; and a seventh lens made of a plastic material. The camera optical lens satisfies following conditions: 1.51&#x2264;f1/f&#x2264;2.50; 1.70&#x2264;n4&#x2264;2.20; 2.00&#x2264;f3/f4&#x2264;5.00; &#x2212;10.00&#x2264;(R13+R14)/(R13&#x2212;R14)&#x2264;10.00; and 1.70&#x2264;n5&#x2264;2.20. The camera optical lens can achieve a high imaging performance while obtaining a low TTL.

Camera optical lens including seven lenses of ++++&#x2212;+&#x2212; refractive powers

The present disclosure relates to the field of optical lenses and provides a camera optical lens. The camera optical lens includes, from an object side to an image side: an aperture; a first lens having a positive refractive power; a second lens having a negative refractive power; a third lens having a positive refractive power; a fourth lens having a positive refractive power; and a fifth lens having a negative refractive power. The camera optical lens satisfies following conditions: 0.80&#x2264;f1/f&#x2264;0.90; 70.00&#x2264;f3/f&#x2264;120.00; and &#x2212;450.00&#x2264;(R5+R6)/(R5&#x2212;R6)&#x2264;&#x2212;430.00, where f denotes a focal length of the camera optical lens; f1 denotes a focal length of the first lens; f3 denotes a focal length of the third lens; R5 denotes a curvature radius of an object side surface of the third lens; and R6 denotes a curvature radius of an image side surface of the third lens.

A cavity filter includes a cavity, a cover plate, a tuning component, and a resonant column. The cover plate is connected to the cavity, and the cover plate is configured to cover the cavity to form a resonant cavity. A through hole is provided on the cover plate, and the tuning component passes through the through hole and is fastened on the cover plate. The tuning part includes a high-conductivity part and a non-conductivity part, the high-conductivity part is located in the cavity, and the resonant column is in the cavity.

Cavity filter

An optical module structure includes a substrate, an optical chip and an electrical chip that are fixedly coupled to the substrate. The optical module structure further includes an optical coupling structure fixedly coupled to the optical chip. A side of the optical chip that faces the substrate has a first reference plane, and at least one first alignment mark is provided on the first reference plane. The optical coupling structure has a second reference plane, and at least one second alignment mark is provided on the second reference plane. The first reference plane is aligned with the second reference plane, and the first alignment mark is aligned with the second alignment mark.

Optical module structure and fabrication method for optical module structure

Embodiments of this application disclose an ODU and a transmit power control method for an ODU. The ODU includes a controller, a radio frequency processor, a waveguide channel, an antenna, a wave-absorbing block, a detector, and a motor controller. The controller is configured to obtain target transmit power, first transmit power, and a to-be-transmitted first radio frequency signal, and generate a control signal based on a difference between the target transmit power and the first transmit power. The radio frequency processor is configured to: perform frequency conversion on the first radio frequency signal to obtain the second radio frequency signal, and transmit the second radio frequency signal, where the second radio frequency signal is transmitted to the antenna through the waveguide channel. The wave-absorbing block has one end located in the waveguide channel and the other end connected to the motor controller. The motor controller is configured to drive, according to the control signal, the wave-absorbing block to move, so that the first transmit power is consistent with the target transmit power. In this way, according to the embodiments of this application, transmit power can be accurately adjusted, and the ODU can transmit a radio frequency signal at relatively low transmit power.

ODU and transmit power control method for ODU

Embodiments of the present invention provide a tunable filter and a tunable filtering device. The tunable filter includes: a cavity, a filtering component that is in the cavity and that is provided on a first surface thereof with at least one through hole, a drive mechanism, and at least one first adjustable component and at least one second adjustable component that are connected to the drive mechanism and that run through the first surface of the cavity; one end of one first adjustable component is disposed opposite to one of the at least one through hole; one end of one second adjustable component is disposed opposite to a position between two adjacent through holes in the at least one through hole; and the drive mechanism controls the at least one first adjustable component to synchronously move, and controls the at least one second adjustable component to synchronously move.

Tunable filter and tunable filtering device

The present disclosure provides a camera lens which has good optical properties, is ultra-thin, and includes five lenses having a bright F-number of less than 2.05. The camera lens includes, from an object side to an image side, a first lens having a positive refractive power, a second lens having a negative refractive power, a third lens having a negative refractive power, a fourth lens having a positive refractive power and a fifth lens having a negative refractive power. The camera lens satisfies specified relational expressions.

Camera lens

An optical coupling apparatus and method are described. An embodiment of an optical coupling apparatus may include a first optical chip, a second optical chip, and an optical writing waveguide block. In the apparatus, the first optical chip is coupled to the optical writing waveguide block in a first coupling manner, and the second optical chip is coupled to the optical writing waveguide block in a second coupling manner. Furthermore, in the apparatus, the first optical chip is optically interconnected to the second optical chip by using the optical writing waveguide block. Compatibility between a plurality of coupling manners is therefore enabled by using the technical solutions described herein.

Optical coupling apparatus and method

A tunable filter includes a first waveguide body, a second waveguide body, a metal plate, a tuning piece, and a driving piece. A first cavity is disposed in the first waveguide body, and a second cavity is disposed in the second waveguide body. The metal plate is sandwiched between the first waveguide body and the second waveguide body, multiple windows are disposed on the metal plate, and the first cavity and the second cavity are in communication and are symmetrically distributed on both sides of the metal plate. The tuning piece includes a dielectric pull-rod and multiple metal sheets connected to the dielectric pull-rod, the dielectric pull-rod protrudes out of the first waveguide body and is connected to the driving piece, the multiple metal sheets are disposed inside the first cavity, and the multiple metal sheets are disposed corresponding to the multiple windows.

Growing community of inventors

Shenzhen, China

Qing Zhao