CN109358469B - 一种用于投影设备幕布的防异动支撑机构 - Google Patents
一种用于投影设备幕布的防异动支撑机构 Download PDFInfo
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- CN109358469B CN109358469B CN201811380926.2A CN201811380926A CN109358469B CN 109358469 B CN109358469 B CN 109358469B CN 201811380926 A CN201811380926 A CN 201811380926A CN 109358469 B CN109358469 B CN 109358469B
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- 230000007246 mechanism Effects 0.000 title claims abstract description 36
- 208000012661 Dyskinesia Diseases 0.000 title claims abstract description 11
- 230000002265 prevention Effects 0.000 title claims abstract description 8
- 230000000694 effects Effects 0.000 abstract description 18
- 238000004140 cleaning Methods 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
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- 238000000034 method Methods 0.000 description 1
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/58—Projection screens collapsible, e.g. foldable; of variable area
Abstract
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CN201811380926.2A CN109358469B (zh) | 2018-11-20 | 2018-11-20 | 一种用于投影设备幕布的防异动支撑机构 |
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CN201811380926.2A CN109358469B (zh) | 2018-11-20 | 2018-11-20 | 一种用于投影设备幕布的防异动支撑机构 |
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CN109358469A CN109358469A (zh) | 2019-02-19 |
CN109358469B true CN109358469B (zh) | 2020-12-18 |
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB887916A (en) * | 1958-08-30 | 1962-01-24 | John Michael Denton | Improvements in or relating to projection screens |
GB941198A (en) * | 1960-05-14 | 1963-11-06 | Herbert Riedel | An improved collapsible stand for a flexible projection screen |
EP0499160A3 (en) * | 1991-02-09 | 1993-03-31 | Dai Nippon Printing Co., Ltd. | Transmission type projection screen assembly |
CN107367896A (zh) * | 2017-07-25 | 2017-11-21 | 张家港宝视特影视器材有限公司 | 快速安装折叠便携式幕布支架 |
CN207181943U (zh) * | 2017-09-19 | 2018-04-03 | 惠州市特乐影视设备有限公司 | 一种快速安装银幕支架 |
CN207897415U (zh) * | 2018-01-31 | 2018-09-25 | 西安航空学院 | 一种单手持握折叠摘果器 |
CN208027589U (zh) * | 2018-02-05 | 2018-10-30 | 蔡发章 | 一种互联网教学用展示装置 |
-
2018
- 2018-11-20 CN CN201811380926.2A patent/CN109358469B/zh active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB887916A (en) * | 1958-08-30 | 1962-01-24 | John Michael Denton | Improvements in or relating to projection screens |
GB941198A (en) * | 1960-05-14 | 1963-11-06 | Herbert Riedel | An improved collapsible stand for a flexible projection screen |
EP0499160A3 (en) * | 1991-02-09 | 1993-03-31 | Dai Nippon Printing Co., Ltd. | Transmission type projection screen assembly |
CN107367896A (zh) * | 2017-07-25 | 2017-11-21 | 张家港宝视特影视器材有限公司 | 快速安装折叠便携式幕布支架 |
CN207181943U (zh) * | 2017-09-19 | 2018-04-03 | 惠州市特乐影视设备有限公司 | 一种快速安装银幕支架 |
CN207897415U (zh) * | 2018-01-31 | 2018-09-25 | 西安航空学院 | 一种单手持握折叠摘果器 |
CN208027589U (zh) * | 2018-02-05 | 2018-10-30 | 蔡发章 | 一种互联网教学用展示装置 |
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CN109358469A (zh) | 2019-02-19 |
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Effective date of registration: 20201130 Address after: Room 276, 2 / F, Rixin international commercial center, 555 Qianjiang Road, Shangcheng District, Hangzhou City, Zhejiang Province Applicant after: Hangzhou HAILEI Technology Co.,Ltd. Address before: 510140 Shop 17, 403 Guangfuzhong Road, Liwan District, Guangzhou City, Guangdong Province Applicant before: Wang Jianwei Applicant before: Deng Hanfeng Applicant before: Wang Chengfen |
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EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20190219 Assignee: Hangzhou Kongfan Technology Co.,Ltd. Assignor: Hangzhou HAILEI Technology Co.,Ltd. Contract record no.: X2021330000380 Denomination of invention: An anti movement support mechanism for projection equipment curtain Granted publication date: 20201218 License type: Common License Record date: 20211011 |
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EC01 | Cancellation of recordation of patent licensing contract | ||
EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Hangzhou Kongfan Technology Co.,Ltd. Assignor: Hangzhou HAILEI Technology Co.,Ltd. Contract record no.: X2021330000380 Date of cancellation: 20230301 |
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Effective date of registration: 20240426 Address after: Room 407-10, floor 4, building 2, Haichuang science and technology center, Cangqian street, Yuhang District, Hangzhou City, Zhejiang Province, 311100 Patentee after: Zhejiang Zhiduo Network Technology Co.,Ltd. Country or region after: China Address before: Room 276, 2 / F, Rixin international commercial center, 555 Qianjiang Road, Shangcheng District, Hangzhou City, Zhejiang Province Patentee before: Hangzhou HAILEI Technology Co.,Ltd. Country or region before: China |