Hon Hai Precision Industry Co., Ltd.

Tsinghua University

Aac Optics (suzhou) Co., Ltd.

Changzhou Raytech Optronics Co., Ltd.

Longhorn Intelligent Tech Co., Ltd.

Huawei Technologies Co., Limited

Hong-fu Jin Precision Industry (shenzhen) Co., Ltd.

Oracle America, Inc.

Sz Dji Osmo Technology Co., Ltd.

Aac Optics (changzhou) Co., Ltd.

Feng Drake Zhu

Shou-Shan Fan

Liang Liu

Yang Wei

Lin Xiao

Chun-sheng Li

Haitao Yang

Lin Yang

Yu-Hua Mao

Zhiqing Zhu

Kai-Li Jiang

Zhuo Chen

Kuan-Hong Hsieh

Xiao-Guang Li

Jie Tang

Han-Che Wang

Shin-Hong Chung

Chun Li

Xingwei Huang

Yi Hao

Fen Li

Xue-qing Li

Jin Ping Zu

Chibing Chen

Xiao Liang Chen

Xinsheng He

Xue-Qiang Zhang

Chuan Peng

The present invention discloses a camera optical lens including, from an object side to an image side in sequence, a first lens having a positive refractive power, a second lens having a negative refractive power, a third lens having a refractive power, a fourth lens having a positive refractive power, a fifth lens having a negative refractive power; wherein the camera optical lens satisfies the following conditions: 0.85≤f1/f≤1.20, 2.50≤f2/f5≤6.00, −30.00≤(R5+R6)/(R5−R6)≤−3.00, 1.30≤d8/d9≤3.00, and 2.00≤R9/R10≤10.00. The camera optical lens according to the present invention has excellent optical characteristics, such as large aperture, wide angle, and ultra-thin.

Camera optical lens

The present disclosure provides a camera optical lens including, from an object side to an image side in sequence: 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; wherein the first lens has a positive refractive power, the camera optical lens satisfies conditions of: 0.95≤f/TTL; 3.00≤f2/f≤5.50; and 3.00≤(R13+R14)/(R13−R14)≤25.00. The camera optical lens can achieve good optical performance while meeting the design requirements for long focal length and ultra-thinness.

The present disclosure discloses 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, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and an eight lens, which satisfies following conditions: 0.95≤f/TTL; −3.50≤f2/f≤−1.80; and 0.30≤(R5+R6)/(R5−R6)≤0.90; where 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; f denotes a focal length of the camera optical lens; f2 denotes a focal length of the second lens; R5 denotes a curvature radius of an object-side surface of the third lens; R6 denotes a curvature radius of an image-side surface of the third lens. The camera optical lens can achieve good optical performance while meeting the design requirement for long focal length and ultra-thinness.

A 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 positive 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, and satisfies: 1.20≤f2/f1≤7.00; 1.50≤R6/R5≤5.00; and 1.20≤d5/d6≤2.00, where f1 and f2 respectively denote focal lengths of the first and second lenses; R5 and R6 respectively denote central curvature radii of object side and image side surfaces of the third lens; d5 denotes an on-axis thickness of the third lens; and d6 denotes an on-axis distance from the image side surface of the third lens to an object side surface of the fourth lens, thereby achieving good optical performance while satisfying design requirements for ultra-thinness, a wide angle and a large aperture.

A 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 and a sixth lens. The camera optical lens satisfies conditions of &#x2212;4.00&#x2264;f2/f&#x2264;&#x2212;1.50, &#x2212;10.00&#x2264;f4/f5&#x2264;&#x2212;2.00, &#x2212;20.00&#x2264;(R5+R6)/(R5&#x2212;R6)&#x2264;&#x2212;2.00, R10/R9&#x2264;&#x2212;3.00, and 2.00&#x2264;d1/d2&#x2264;7.00. Here f denotes a focal length of the camera optical lens, f2 denotes a focal length of the second lens, f4 denotes a focal length of the fourth lens, f5 denotes a focal length of the fifth lens, R5 denotes a curvature radius of an object-side surface of the third lens, R6 denotes a curvature radius of an image-side surface of the third lens, R9 denotes an curvature radius of an object-side surface of the fifth lens. The camera optical lens of the present disclosure has excellent optical performances, and meanwhile can meet design requirements of a large aperture, a wide angle and ultra-thin.

A camera optical lens includes a first lens to a fifth lens. The camera optical lens satisfies 1.80&#x2264;f1/f&#x2264;3.50; 1.25&#x2264;d7/d9&#x2264;1.80; 0.40&#x2264;f4/f&#x2264;0.90; 3.50&#x2264;R9/R10&#x2264;7.50; and 1.00&#x2264;R3/R4&#x2264;2.00, where f denotes an total focal length of the camera optical lens, f1 denotes a focal length of the first lens, f4 denotes a focal length of a fourth lens, R3 denotes a curvature radius of an object side surface of a second lens, R4 denotes a curvature radius of an image side surface of the second lens, R9 denotes a curvature radius of an object side surface of the fifth lens, R10 denotes a curvature radius of an image side surface of the fifth lens, d7 denotes an on-axis thickness of the fourth lens, and d9 denotes an on-axis thickness of the fifth lens. The camera optical lens meets design requirements of a large aperture, a wide angle, and ultra-thinness while having good optical performance.

A folding grow light has a main body with a main body housing. A driver is installed to the main body. The folding grow light has a right folding arm and a left folding arm. The right folding arm holds at least three linear arrays of LED lights perpendicular to the right folding arm. The left folding arm holds at least three linear arrays of LED lights perpendicular to the left folding arm. A right front main joint and a right rear main joint connect the main body to the right folding arm. The right folding arm rotates from a first position that is folded in a vertical orientation to a second position that is unfolded in a horizontal orientation.

Folding grow light

A power supply method includes detecting whether a battery is newly connected to an unused battery interface of an electronic device during operation of the electronic device. The power supply method also includes, based on detecting that the battery is newly connected to the unused battery interface, and determining that a capacity of the newly connected battery is greater than a capacity of a currently operating battery, controlling the newly connected battery to function as an operating battery to provide an electric power to the electronic device.

Power supply method, power supply device, and electronic device

A grow light has a frame that includes a first frame rail and a second frame rail. The frame includes a first reflector. The first reflector extends from the first frame rail to the second frame rail. The frame has a second reflector. The second reflector extends from the first frame rail to the second frame rail. The frame has a right outside crossbar extending from the first frame rail to the second frame rail, and a left outside crossbar extending from the first frame rail to the second frame rail. Tube lights are elongated and extend from the frame. The tube lights have a vertical mode and a horizontal mode. The tube lights include a first tube light and a second tube light.

Grow light

A data processing method is provided, wherein the method includes for each region in multiple regions, generating, according to a correspondence between location information of a user in a user group and the region, a user appearing information bit set corresponding to the region, where a bit value of each bit in the user appearing information bit set indicates whether a corresponding user in the user group appears in the region; receiving a request message carrying a region indication parameter; querying, according to the region indication parameter, for a user appearing information bit set corresponding to a region indicated by the region indication parameter, and performing data processing according to the found user appearing information bit set. Thus, a user appearing information bit set corresponding to a region is generated, thereby reducing data storage space, and increasing computing efficiency and a computing speed when performing data processing.

Data processing method and apparatus

A statistical system and method for generating patterns and performing online handwriting recognition based on those patterns. A plurality of predetermined patterns may be generated by performing feature extraction operations on one or more character samples utilizing a Gabor filter. An online handwritten character may be acquired. The online handwritten character may be pre-processed. One or more feature extraction operations, utilizing a Gabor filter, may be performed on the online handwritten character to produce a feature vector. One or more patterns may be generated, using a statistical algorithm, for the online handwritten character, based on the feature vector. The online handwritten character may be statistically classified based on a comparison between the one or more patterns generated for the online handwritten character and the plurality of predetermined patterns.

Statistical online character recognition

A digital photo frame (DPF) includes a power source, a display panel, a light detector, a motion detector, a processing unit, and a power management unit. The light detector is configured to detect the ambient brightness. The motion detection unit is configured to detect whether anyone is around. The processing unit is connected to the light detector and the motion detector. If the motion detector detects someone is around the DPF and the light detector detects the ambient brightness is below a predetermined value, the processing unit controls the power management unit to provide power to the display panel.

Intelligent digital photo frame

An exemplary method for manufacturing a field electron emission source includes: providing a substrate (); depositing a cathode layer () on a surface of the substrate; providing a carbon nanotube paste, coating the carbon nanotube paste on the cathode layer; calcining the carbon nanotube paste to form a carbon nanotube composite layer (); and, irradiating the carbon nanotube composite layer with a laser beam of a certain power density, thereby achieving a field electron emission source.

Field electron emission source having carbon nanotubes and method for manufacturing the same

A method for making a field emission lamp generally includes the steps of: (a) providing a cathode emitter; (b) providing a transparent glass tube having a carbon nanotube transparent conductive film and a fluorescent layer, wherein the carbon nanotube transparent conductive film and the fluorescent layer are both disposed on an inner surface of the transparent glass tube; (c) providing a first glass feedthrough, a second glass feedthrough, and a nickel pipe, wherein the first glass feedthrough has an anode down-lead pad and an anode down-lead pole connected to the anode down-lead pad, and the second glass feedthrough has a cathode down-lead pole; (d) securing the nickel pipe to one end of the cathode emitter and securing the other end of the cathode emitter to one end of the cathode down-lead pole of the second glass feedthrough; and (e) melting and assembling the first and second glass feedthroughs to ends of the transparent glass tube respectively.

Method for making field emission lamp

A method for manufacturing a field emission electron source, the method comprising the steps of: preparing a substrate, a carbon nanotubes slurry, and a conductive slurry; applying a conductive slurry layer onto the substrate; applying a layer of carbon nanotubes slurry onto the conductive slurry layer; and solidifying the substrate under a temperature of 300 to 600 degrees centigrade so as to form the field emission electron source.

Growing community of inventors

Beijing, China

Feng Drake Zhu