Appotronics Corporation Limited

Huawei Technologies Co., Limited

Zte Corporation

International Business Machines Corporation

Tencent Technology (shenzhen) Company Limited

Xi'an Zhongxing New Software Co., Ltd.

Emomo Technology Co., Ltd

Mgi Tech Co., Ltd.

Bgi Shenzhen

Tp-link Systems Inc.

Intellindust Information Technology (shenzhen) Co., Ltd.

Lin Wang

Fei Hu

Yi Li

Wei Sun

Xiaofeng Tang

Shijie Li

Hongxiu Zhang

Weiliang Zhang

Qiongwen Liang

Junjian Zhang

Wei Yu

Wenwei Zhang

Kai Yang

Fen Liu

Bo Lin

Eyal Shlomot

Peng Wang

Wei Wei

Peng Zhang

Yu Liu

Jie Wang

Yuliang Dong

Wenji Tang

Liquan Yuan

Xin Yu

Yi Lin

Snezana Drmanac

Hao Xu

Liping Wang

Matthew H Zemke

Lei Liao

Libin Zhang

Zhigang Wang

Dezhi Zhang

Chongjun Xu

Jinliang Dai

Xiaolian Zhou

Ming Kong

Boshan Zhang

Yue Zheng

Xiao Zhou

Shangli Liang

Yulong Zhang

Liping Liu

Caizhi Zhu

Hong Lei

Matthias Graefe

Zeda Tang

Xibo Mo

Zhiyi Lu

Lili Zhai

Peizhe Ru

An optical film and an optical imaging system are provided. The optical film includes a first lens layer, a first deflection layer, a reflection layer, a second deflection layer, and a second lens layer. The second lens layer is attached to a windshield. The reflection layer is configured to reflect an image light beam to form a first reflected light beam and the first lens layer and the first deflection layer are configured to amplify and/or deflect the first reflected light beam, to guide the first reflected light beam to a field-of-view direction. The second lens layer and the second deflection layer are configured to amplify and/or deflect a second reflected light beam, to guide the second reflected light beam to a first direction. The second reflected light beam is formed by that the windshield reflects the image light beam. The field-of-view direction is different from the first direction.

Optical film and optical imaging system

The present disclosure provides a method for waking up a camera and apparatus thereof. The method includes: acquiring at least one wake-up signal for waking up the camera; performing pre-determined signal processing on the acquired wake-up signal to extract indicative features; determining wake-up scenario information corresponding to the acquired wake-up signal based on the indicative features; determining, based on the determined wake-up scenario information, an activation scheme corresponding to the wake-up scenario information, wherein the activation scheme defines activation priority at least one functional module in the camera in the wake-up scenario; and activating at least one functional module based on activation priority defined in the determined activation scheme.

Camera and wake-up method thereof

A projection screen, with a design in which the apexes of multiple triangular pyramidal units of the projection screen in an array arrangement change gradually according to a predetermined relation, an image light shone from a projector is reflected by a microstructure layer having the triangular pyramidal units and then converged in a range centered around the human eyes, so as to reduce the degree of difference in brightness at different viewing positions, thus ensuring that the projection screen is provided with excellent uniformity and high gain.

Projection screen

Provided is a recombinant KOD polymerase, which is the following A) or B): the polymerase shown in A) is a protein having DNA polymerase activity that is obtained by modifying amino acid residues in at least one of the following 18 positions in a wild-type KOD DNA polymerase amino acid sequence: 675th, 385th, 710th, 674th, 735th, 736th, 606th, 709th, 347th, 349th, 590th, 676th, 389th, 589th, 680th, 384th, 496th and 383rd; the polymerase described by B) is a protein having DNA polymerase activity that is derived from A) by adding a tag sequence to an end of the amino acid sequence of the protein shown in A).

Recombinant KOD polymerase

An LED display screen, comprising: an LED array, consisting of multiple LED light-emitting units and used for emitting a light; an optical diffusion film, provided at a light exit side of the LED array; a matrix shading frame, comprising multiple hollow shading gratings, the hollow shading gratings corresponding one-to-one to the LED light-emitting units; and a substrate, used for supporting the LED array and the matrix shading frame, where the light emitted by the LED light-emitting units, after running through the hollow shading gratings, is diffused to a viewer side via the optical diffusion film, and the LED light-emitting units emit the light towards the hollow shading gratings.

LED display screen

A head-up display screen, a head-up display assembly, and a vehicle are provided. The head-up display screen is attached to an inner side of an attachment surface of a windshield and configured to reflect image light emitted towards the windshield. The head-up display screen includes a functional layer, a reflective layer, and a protective layer that are sequentially arranged in a direction from the windshield to a driving position. The functional layer includes prism microstructures protruding from the inner side of the attachment surface of the windshield. The reflective layer is at least attached to lower inclined surfaces of the prism microstructures and is configured to reflect the image light towards the driving position. The protective layer covers the reflective layer and the functional layer.

Head-up display screen, head-up display assembly, and vehicle

The present application provides a projection screen and a projection system. The projection screen includes an optical structure layer and a reflective layer, where the optical structure layer includes a plurality of microstructure units; each of the plurality of microstructure units include a first sidewall and second sidewalls; the reflective layer covers at least part of the first sidewall to form a first working surface, and the reflective layer covers at least part of the second sidewalls to form second working surfaces, respectively; the first working surface deflects an input image beam, and at least part of the input image beam is transmitted to viewer's field and the second working surfaces; and the second working surfaces deflect an input image beam came from the first working surface, and the input image beam came from the first working surface is transmitted to the viewer's field. The present application improves the brightness evenness of the projection screen.

Projection screen and projection system

A transparent projection screen and a manufacturing method. The transparent projection screen is for receiving projection light and transmitting ambient light and comprises a first substrate layer, a Fresnel structure layer, a surface diffusion layer, a nano metal plating layer, and a binding adhesive layer. The Fresnel structure layer is disposed on the first substrate layer and comprises a prism surface. The surface diffusion layer is disposed on a portion of the prism surface. The nano metal plating layer is disposed on the surface diffusion layer. The binding adhesive layer is disposed on the nano metal plating layer and fills and levels the prism surface. The projection light passes the first substrate layer and is incident on the prism surface and then reflected thereby. The ambient light passes the binding adhesive layer, the nano metal plating layer, the surface diffusion layer and the first substrate layer, and is emitted.

Transparent projection screen, and manufacturing method for same

A wire grid structure and a manufacturing method therefor, and a projection screen are provided. The manufacturing method includes: extruding a molten mixed material body in a melt extruder to a casting roll to form a casting piece; patterning the casting piece by means of an impression roll to form a precursor having a preset wire grid structure pattern, where the precursor is wound on the impression roll and has a first dimension in a height direction; stretching the precursor by a first group of stretching rolls and a second group of stretching rolls in two opposite directions along a direction perpendicular to the height direction to form the wire grid structure, a preset distance being configured between the first group of stretching rolls and the second group of stretching rolls. The wire grid structure has a second dimension in the height direction that is greater than the second dimension.

Wire grid structure and manufacturing method therefor, and projection screen

A method and an apparatus for generating image data, which relate to the technical field of image processing. The method comprises: obtaining a first pixel value of each pixel in a first image based on original pixel values of the first image acquired by an image acquisition device when ambient light brightness is greater than a first preset brightness threshold; obtaining a second pixel value of each pixel by dividing the first pixel value of this pixel by a preset multiple; the second preset brightness threshold is less than the first preset brightness threshold; obtaining a third pixel value of each pixel by adding Poisson noise based on a total system gain of the image acquisition device on the basis of the second pixel value of this pixel; generating original pixel values of a target image which corresponds to the first image for which the ambient light brightness is less than the second preset brightness threshold based on respective third pixel values. In this way, the generation efficiency of image data can be improved.

Method and apparatus for generating image data

A projection screen includes an optical collimating layer and a surface diffusion layer which are arranged in sequence. A grating absorption layer for absorbing ambient light from various directions except a projection light direction is also provided between the optical collimating layer and the surface diffusion layer. The grating absorption layer includes a plurality of light-absorption ring-shaped units with different radii. The plurality of light-absorption ring-shaped units are arranged in a concentric ring. Each of the light-absorption ring-shaped units consists of a plurality of gratings arranged in the circumferential direction of the concentric ring. By taking a vertical symmetrical center line of the projection screen as a center, in a direction extending along the circumferential direction of the concentric ring to the left side and the right side of the projection screen, the distance between two adjacent gratings in the same light-absorption ring-shaped unit gradually increases.

A projection screen and a projection system using the projection screen. The projection screen includes a microstructure layer and a light absorbing layer sequentially stacked from the side where a projected light is introduced. The microstructure layer includes multiple microstructure units. Each microstructure unit includes one reflective surface and one lens surface opposite the reflective surface; moreover, the reflective surface is provided at a position matching the focus of the lens surface. The projection screen and the projection system can resist ambient light and have a high gain and a high contrast.

A projection screen and a processing method therefor, wherein the projection screen comprises, in sequence from the incident side of projection light, a diffusion layer, a microlens array and a substrate. The inner side of the substrate is provided with a Fresnel microstructure, and part of the surface of the Fresnel microstructure is provided with a reflecting layer while the remaining part of the surface is a light absorbing layer. The microlens array is used for focusing the projection light on the reflecting layer. The reflecting layer is used for reflecting projection light back to the field of view of viewers. Ambient light is mostly absorbed by the light absorbing layer. The settings of the structure and dimension of the microlens array enable the projection light to be only incident onto the reflecting layer of the Fresnel microstructure and the ambient light to be mostly absorbed by the light absorbing layer.

Projection screen and processing method therefor

A screen splicing structure is provided. The screen splicing structure includes a substrate layer, a middle adhesive layer, and a surface layer. The substrate layer includes a first substrate and a second substrate. The second substrate is spliced with the first substrate, and a seam is formed at a splicing place. The surface layer and the middle adhesive layer are stacked. The surface layer covers the seam by bonding the middle adhesive layer and the substrate layer. The peeling strength of the surface layer and the substrate layer is greater than or equal to 1,000 gf/inch. A method for forming the screen splicing structure is also provided.

Screen splicing structure and method for forming screen splicing structure

A total reflection screen comprises a light diffusion layer, a total reflection layer and a light absorption layer arranged sequentially from an incidence side of the projected light. The light absorption layer can absorb an incident light. The light diffusion layer is used for increasing a divergence angle of emergent light. The total reflection layer comprises a plurality of microstructure units that is rotationally symmetrical and extends continuously in a plane of the total reflection screen. Each of the microstructure units comprises a first material layer disposed at the side of the light diffusion layer and a second material layer disposed at the side of the light absorption layer. The interface between the first material layer and the second material layer is comprised of two intersecting planes, which are disposed in such a way that the projected light is subjected to total reflection continuously at the two intersecting planes.

Total internal reflection screen and projection system

Growing community of inventors

Shenzhen, China

Lin Wang