Unverified85% confidenceFactTime unknown
光学质量看镜片镀膜，全表面多层镀膜（FMC）透光率＞90%，'蓝膜'单层镀膜透光率低偏色，ED/APO消色差镜片可消除行星边缘紫边
1
Sources
85%
Confidence
Long-term
Relevance
-
First Seen
Sources
Related Entities
Related Claims
Unverified镀膜质量看颜色：镜片呈蓝紫色多层增透膜(FMC)透光率＞90%，呈红色/橙色的是廉价单层镀膜甚至染色玻璃，透光差且成像发暗80% similarUnverified防蓝光实现方式分为基材吸收（镜片本身泛黄、过滤率高但色偏大）和表面镀膜（镜片透明、有蓝紫色反光、色偏小但过滤率通常20%-25%），追求视觉无色偏优先选镀膜型79% similarUnverified镜片镀膜等级从低到高为：单层镀膜(C)、全表面镀膜(FC)、多层镀膜(MC)、全表面多层镀膜(FMC)，儿童望远镜至少选FC级避免眩光和偏色，认准蓝紫或绿色镀膜反光79% similarUnverified防蓝光镜片按阻隔波段分两类：反射膜片主要阻隔415-455nm短波蓝光(阻隔率通常20-40%)但镜片近无色偏；基材染色片可阻隔更宽波段(阻隔率可达60%以上)但镜片明显泛黄。日常办公选反射膜片，重度屏幕/护眼选染色片77% similarUnverified选购时看镜片透光率参数：优质防蓝光镜片可见光透光率应≥90%，若厂商只标'防蓝光'却不标透光率和具体阻隔波段，多为低端染色片77% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/153323API
curl https://kongchang.com/api/v1/knowledge/claims/153323MCP
get_claim(id=153323)