JPH0392604U - - Google Patents

Info

Publication number
JPH0392604U
JPH0392604U JP177290U JP177290U JPH0392604U JP H0392604 U JPH0392604 U JP H0392604U JP 177290 U JP177290 U JP 177290U JP 177290 U JP177290 U JP 177290U JP H0392604 U JPH0392604 U JP H0392604U
Authority
JP
Japan
Prior art keywords
grating pattern
substrate
hologram element
reflective film
reflective
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP177290U
Other languages
English (en)
Other versions
JP2565887Y2 (ja
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1990001772U priority Critical patent/JP2565887Y2/ja
Publication of JPH0392604U publication Critical patent/JPH0392604U/ja
Application granted granted Critical
Publication of JP2565887Y2 publication Critical patent/JP2565887Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Holo Graphy (AREA)
  • Optical Head (AREA)

Description

【図面の簡単な説明】
第１図は本考案一実施例のホログラム素子の断
面図で第２図の−線断面図、第２図は同ホロ
グラム素子の平面図、第３図は他の実施例を示す
同平面図、第４図は上記ホログラム素子を用いた
ホログラム光ヘツドの構成説明図、第５図は従来
のホログラム素子の断面図で第６図の−線断
面図、第６図は腐食状態を示した同ホログラム素
子の平面図である。 １２……ホログラム素子、２１……ガラス基板
（基板）、２２……格子パターン、２３……反射
膜、２４……ホログラム面（反射面）、２６……
反射膜直接被覆領域。

Claims (1)

  1. 【実用新案登録請求の範囲】 基板上に格子パターンを形成し、この格子パタ
    ーン上に反射膜を被覆した反射型のホログラム素
    子において、 前記格子パターンを前記基板の外形より小さく
    形成し、この格子パターンの外周に、前記基板上
    に反射膜を直接形成してなる反射膜直接被覆領域
    を設けたことを特徴とするホログラム素子。
JP1990001772U 1990-01-12 1990-01-12 ホログラム素子 Expired - Lifetime JP2565887Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990001772U JP2565887Y2 (ja) 1990-01-12 1990-01-12 ホログラム素子

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990001772U JP2565887Y2 (ja) 1990-01-12 1990-01-12 ホログラム素子

Publications (2)

Publication Number Publication Date
JPH0392604U true JPH0392604U (ja) 1991-09-20
JP2565887Y2 JP2565887Y2 (ja) 1998-03-25

Family

ID=31505667

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990001772U Expired - Lifetime JP2565887Y2 (ja) 1990-01-12 1990-01-12 ホログラム素子

Country Status (1)

Country Link
JP (1) JP2565887Y2 (ja)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6140272U (ja) * 1984-08-15 1986-03-14 凸版印刷株式会社 カ−ド

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6140272U (ja) * 1984-08-15 1986-03-14 凸版印刷株式会社 カ−ド

Also Published As

Publication number Publication date
JP2565887Y2 (ja) 1998-03-25

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term