首页
产品
黄页
商标
征信
会员服务
注册
登录
全部
|
企业名
|
法人/股东/高管
|
品牌/产品
|
地址
|
经营范围
发明名称
ANNULAR OPTICAL MEMBER
摘要
An annular optical member of synthetic resin is provided, having a bottomed inner groove on an inner peripheral surface thereof, wherein the bottom of the bottomed inner groove has a rough surface which defines an inner anti-reflection surface.
申请公布号
US5221993(A)
申请公布日期
1993.06.22
申请号
US19900630085
申请日期
1990.12.19
申请人
ASAHI KOGAKU KOGYO KABUSHIKI KAISHA
发明人
NOMURA, HIROSHI
分类号
G02B7/02;G02B7/04;G02B7/10
主分类号
G02B7/02
代理机构
代理人
主权项
地址
您可能感兴趣的专利
VACUUM SUCKER AND AIR EJECTOR CONTROL VALVE FOR VACUUM SUCKER
METHOD AND DEVICE FOR AUTOMATICALLY CORRECTING ROBOT ACTION ERROR
INDUSTRIAL ROBOT
ARTICLE GRIPPER
FEEDOUT DEVICE FOR STAPLE IN ELECTRICALLY-DRIVEN STAPLER
COOLANT FEEDING DEVICE FOR LATHE
FEED MECHANISM FOR STAPLE IN ELECTRICALLY-DRIVEN STAPLER
POSITIONING DEVICE
SHAPING DEVICE FOR REINFORCEMENT MEMBER FOR CONSTRUCTION
HALF NUT DEVICE FOR AUTOMATIC FEED DRILLING MACHINE
METALLIC FLUX CORED WIRE FOR GAS SHIELDED ARC WELDING
POSITIONING JIG FOR WELDING
SETTING SYSTEM FOR SLIDING NOZZLE REFRACTORY
MEASURING, CONTROL AND ADJUSTING SYSTEM FOR DETECTING LOCKING FORCE, TIE BAR FORCE AND CASTING FORCE OF DIE-CAST MACHINE
METHOD AND DEVICE FOR PROCESS CONTROL OF DIE-CAST MACHINE
FORMATION OF CASTING MOLD FOR PRECISION CASTING
TRANSFER DEVICE FOR PRESS
METHOD FOR FORMING RECESSED PART IN HOLLOW MEMBER
PRODUCTION OF THIN CAST SLAB FOR GRAIN-ORIENTED SILICON STEEL SHEET
MANUFACTURE OF LAMINATED IRON CORE