|
|
|
制版照相机 制版照相机是将原稿拍摄成制版用的底片的光学机械。由底架(或吊架)、镜箱、原稿架及光源等部件组成。镜箱的前端是镜头板,上面装有镜头。后部是装感光片的暗盒或吸气板。在暗盒或吸气板上有安装玻璃网屏的网屏架及对光用的毛玻璃。镜箱的前、后端用可伸缩的皮腔连接。常用的光源是在支架上装有反光罩的卤素灯或氙灯。有的还附有拍摄透射稿的透射专用光源。摇动照相机后部的两根螺旋杆,可以分别使原稿架及镜箱前端的镜头板沿着装在底架(或吊架)上的两条平行滑轨前后移动。镜头的焦距、原稿与镜头的距离、镜头与感光片的距离决定在感光片上的图像尺寸与原稿相比的缩放倍率。新型的制版照相机采用微处理机控制,具有计算曝光时间自动曝光、自动对焦、自动换镜头等多种功能。有的机身后部与显影机相连接,曝光后,感光片自动进入显影机,显影、定影、烘干后,送出底片。由于电子分色机的发展十分迅速,制版照相机在照相分色上的用途大部分被电子分色机替代。但在印刷行业中,制版照相机的用途仍然十分广阔,例如拍摄单******片、说明文字及线条图案等。不过,除大幅面的地图外,都不需要大幅面的制版照相机。因而,制版照相机正在向小型化、全自动化方向发展。 欢迎在此交流讨论制版照相机操作经验与维护检修及故障分析、排除方法。 |
|
反向链接 | 主题工具 | 显示模式 |
![]() |
#1 (永久链接) |
印前上尉
![]() 同城: 未知
|
![]()
Blue Bay Asia Ain Sokhna units and their areas
Blue Bay Marseilia Ain Sokhna is a huge coastal project with integrated facilities and services, built on an area of about 58 acres, and designed in a smart way to ensure that there is no congestion or overcrowding between the buildings inside. and her beauty. As soon as your eyes fall on the design of Blue Bay Sokhna chalets, you will immediately realize how much sophistication and luxury you will live inside; The residential units are unique in their decor and calm colors that give a feeling of relaxation and psychological comfort, and their spaces vary to suit the different tastes and needs of customers and investors. Blue Bay Sokhna was built in two phases; Each stage includes a number of residential buildings, each of which contains 3 floors, and on one floor there are 2 chalets; So that the chalets space starts from 96 square meters. Prices and payment systems in Blue Bay Blue Bay Asia Sokhna Village is your summer paradise that enjoys various vibrant views of wide green spaces and wonderful views of the amazing water nature with chalets designed in a dazzling Thai Asian style that makes a sense of comfort just by looking at it; How about staying there?! In addition to the various spaces provided by the Queen Company for the project; It also offers competitive prices suitable for all customers and investors, and the customer can own his unit through an easy and convenient payment system, and this can be clarified through the following: Chalets prices inside the resort start from 1,500,000 EGP. The customer pays the unit price equally within 6 years after paying 5% of the value of the contract as a down payment. Enjoy many amenities, recreation and other scenic landscapes, along with a group of modern facilities, swimming pools and recreational activities within the village of Blue Bay Marseille Ain Sokhna. For more details, contact us. The company that owns Blue Bay Asia Sokhna Marseilia Group for Real Estate Development is the executor of Marseilia Blue Bay, Ain Sokhna and has a wide reputation in the Arab Republic of Egypt and the Arab world. Blue Bay Asia Ain Sokhna is one of the most luxurious and finest tourist resorts, which have been designed in an unconventional way for lovers of tranquility and beauty. The company has undertaken many projects that have achieved extraordinary success; Including the following: Cascadia North Coast Village. Marseilia Beach Village 1. Blue Bay Joury Ain Sokhna Resort. Golden Yard Compound, Administrative Capital. Florence Mega Mall. Marseilia Land El Alamein, North Coast. |
![]() |
![]() |
书签 |
当前查看此主题的会员: 1 (0 位会员和 1 位游客) | |
|
|
![]() |
||||
主题 | 主题作者 | 版面 | 回复 | 最后发表 |
إحجز شاليهك في the groove ain sokhna بمساحة 120 متر | saly yasser | 制版照相机 | 1 | 22-06-27 2022-06-27 16:44 |