Title:
再帰性光学スクリーン及びそれを用いた観察装置
Document Type and Number:
Japanese Patent JP4050672
Kind Code:
B2
Abstract:
The invention relates to a reflexive optical screen that can show bright images with efficiency, and a viewing system that incorporates the same, and provides a reflexive optical screen 10 comprising a plurality of zonal V-grooved reflecting surfaces substantially concentrically located within a given surface and having a retrorelection action. Each of the zonal V-grooved reflecting surfaces comprises mutually orthogonal two conical facets 2 and 3 in a section orthogonal to a ridgeline of a V groove, and the conical facets 2 and 3 of each of the zonal V-grooved reflecting surfaces are located such that a bisector 5 for angles that the two conical facets 2 and 3 make in a section of each of the zonal V-grooved reflecting surfaces is oriented in the direction of a light ray incident on a position thereof.
Inventors:
Takakichi Kenno
Application Number:
JP2003289906A
Publication Date:
February 20, 2008
Filing Date:
August 08, 2003
Export Citation:
Assignee:
Olympus Endo Technology America Inc.
International Classes:
G03B21/60; G02B5/12; G02B6/26; G03B21/10; G03B21/56; H03K19/177
Domestic Patent References:
| JP2000162710A | ||||
| JP3194532A | ||||
| JP52111726A | ||||
| JP1085829U | ||||
| JP56016120A | ||||
| JP1161228A | ||||
| JP200562313A |
Attorney, Agent or Firm:
Hiroshi Nagisawa
Ryukichi Abe
Hirukawa Masanobu
Norihiko Uchida
Hideo Sugai
Kenji Aoki
Akira Yonezawa
Ryukichi Abe
Hirukawa Masanobu
Norihiko Uchida
Hideo Sugai
Kenji Aoki
Akira Yonezawa