Wide angle lens system having front negative and rear positive groups

• 1. 一种具有前-后稀释功能的血液透析系统 [P] . 中国专利： CN209236982U . 2019.08.13
• 2. 具有前和后成像系统的打印机 [P] . 中国专利： CN105682929B . 2017.03.15
• 3. Wide angle lens system has negative first, and positive second, lens groups, front and rear positive sub-lens groups, and two focusing lens groups. [P] . 德国专利： DE10142603A1 . 2002-03-14

  机译： 广角镜头系统具有负第一和正第二透镜组，前后正子透镜组以及两个聚焦透镜组。

• 4. Wide angle lens system having front negative and rear positive groups [P] . 英国专利： GB2304925A . 1997-03-26

  机译： 具有前负片和后正片组的广角镜头系统

• 5. Wide angle lens system having front negative and rear positive groups [P] . 英国专利： GB2304925A8 . 1997-04-01

  机译： 具有前负片和后正片组的广角镜头系统

• 1. The effect of positive/negative ion on the dust grain charging process in a Vasyliunas-Cairns (VC)-distributed dusty plasma system [J] . N AHMAD, A A ABID, Y AL-HADEETHI, 等离子体科学和技术（英文版） . 2019,第006期
• 2. Experimental study on interaction between a positive mass and a negative effective mass through a mass-spring system [J] . Jiao Zhou, Yong Cheng, Hongkuan Zhang, 力学快报(英文版) . 2015,第005期
• 3. Mild hypothermia as a treatment for central nervous system injuries Positive or negative effects? [J] . Rami Darwazeh, Yi Yan 中国神经再生研究（英文版） . 2013,第028期
• 4. Side slip angle estimation and active front steering system based on lateral acceleration data at centers of percussion with respect to front/rear wheels [C] . Toshihiro Hiraoka, Hiromitsu Kumamoto, Osamu Nishihara 自動車技術会大会 . 2002
• 5. Polymer-based wide-angle micro-optic lens system with dynamically variable focal length and field of view. [D] . Agarwal, Mangilal. 2004
• 6. Preventing condensation of objective lens in noncontact wide-angle viewing systems during vitrectomy [O] . Jung Pil Lee, Jinsoo Kim, Inwon Park, 2018
• 7. Liquid crystal hyperbolic metamaterial for wide-angle negative-positive refraction and reflection [O] . Pawlik, Grzegorz, Tarnowski, Karol, Walasik, Wiktor, 2014
• 8. Lens System Having Wide Angle Objectives [R] . Baker, J. G. 1980

• 1. The realization of a wide-angle voice transmission non-line-ofsight ultraviolet communication system [J] . Yangyang Deng ,Yuehui Wang ,Yiqing Zhang . 半导体学报:英文版 . 2021,第9期
• 2. Asymmetric Fuzzy Control of a Positive and Negative Pneumatic Pressure Servo System [J] . Gang Yang ,Jing-Min Du ,Xiao-Yun Fu . 中国机械工程学报 . 2017,第006期
• 3. 棉酚经加S9组份前、后诱发人体淋巴细胞SCE频率的研究 [C] . 蔡有余 . 中国遗传学环境诱变剂专业委员会第二次学术讨论会 . -1
• 4. 清毒片与养正片减轻急性白血病化疗后肝肾损害与骨髓抑制的临床实验观察 [A] . 余婷君 . 2009