泽连斯基首次公开指责中国,久操尤物视频在线观看,岳乱久久,国内3P在线

撥號18861759551

你的位置:首頁 > 技術(shù)文章 > 了解中性密度濾鏡

技術(shù)文章

了解中性密度濾鏡

技術(shù)文章

Understanding Neutral Density Filters

Neutral Density (ND) filters are designed to reduce transmission evenly across a portion of a specific spectrum. ND filters are typically defined by their Optical Density (OD) which describes the amount of energy blocked by the filter. A high optical density value indicates very low transmission, and low optical density indicates high transmission (Equations 1 – 2). ND filters can be stacked to achieve a custom optical density. To calculate the final system OD, simply add the OD of each filter together.

 

 

Example 1: What is the transmission if OD 0.3 and OD 1.5 filters are stacked?

 

Example 2: How can I build a filter with 0.5% Transmission?

 

ODtotal of 2.3 could be created by stacking OD 0.3 + OD 2.0 or OD 1.0 + OD 1.3.

 

Types of Neutral Density Filters

There are two types of ND filters: reflective and absorptive. Reflective ND filters consist of thin film optical coatings, typically metallic, that have been applied to a glass substrate. The coating can be optimized for specific wavelength ranges such as UV-VIS or NIR. The thin film coating primarily reflects light back toward the source. Special care should be taken to ensure the reflected light does not interfere with the system setup. Absorptive ND filters utilize a glass substrate to absorb light by a specific percentage.

聯(lián)系我們

地址:江蘇省江陰市人民東路1091號1017室 傳真:0510-68836817 Email:sales@rympo.com
24小時在線客服,為您服務(wù)!

版權(quán)所有 © 2025 江陰韻翔光電技術(shù)有限公司 備案號:蘇ICP備16003332號-1 技術(shù)支持:化工儀器網(wǎng) 管理登陸 GoogleSitemap

在線咨詢
QQ客服
QQ:17041053
電話咨詢
0510-68836815
關(guān)注微信
久久综合国产精品台湾中文娱乐网| 超级碰碰人妻中文字幕| 国产涩涩免费| 国产精品国产三级国产AV小说 | 国产乱码日韩一区二区三区| 天天射天久久| 亚洲高清在线无码视频| 国产精品白色| 老司机精品无码免费视频| 亚洲精品中文字幕制服丝袜 | 三a视频在线观看日本| 污污的网站在线看| 国产一级片内射视频播放探花| av色综合网点| 亚洲性无码| 在线激情网址| 好好日网中文字幕| www.国产高清69| 久久久天海翼三区四区| 日韩精品成人在线免费观看| 日韩久久精品国产免费观看频道| 熟fu色| 久久精品国产清自在天天线| 香蕉大香蕉在线网| 中文字幕有码~第一页| 日韩成一区二区| 日日夜夜黄色AV| 亚洲成人污高清| 久久亚洲国产高清| av. 3p. 在线| 人人操夜夜操| 久久久久久AV无码免费精品| 性色蜜桃av| 亚洲AV乱码一区二区三区乱码| 中文字幕综合亚洲一区| 免费人禽AV网站| 国产精品成人福利电影| 都市激情 亚洲 欧美| 国产成人精品免费视频大全app| a级片高清无码播放| 久久久久久久AV无码免费网站|