JPS58192617U - optical low pass filter - Google Patents

optical low pass filter

Info

Publication number
JPS58192617U
JPS58192617U JP1982090234U JP9023482U JPS58192617U JP S58192617 U JPS58192617 U JP S58192617U JP 1982090234 U JP1982090234 U JP 1982090234U JP 9023482 U JP9023482 U JP 9023482U JP S58192617 U JPS58192617 U JP S58192617U
Authority
JP
Japan
Prior art keywords
pass filter
low pass
optical low
provides
birefringent plate
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
JP1982090234U
Other languages
Japanese (ja)
Other versions
JPS6217778Y2 (en
Inventor
浅井田　貴
Original Assignee
ソニー株式会社
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 by ソニー株式会社 filed Critical ソニー株式会社
Priority to JP1982090234U priority Critical patent/JPS58192617U/en
Publication of JPS58192617U publication Critical patent/JPS58192617U/en
Application granted granted Critical
Publication of JPS6217778Y2 publication Critical patent/JPS6217778Y2/ja
Granted legal-status Critical Current

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Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は光学的ローパスフィルタの従来例を示す要部横
断面図、第２図は従来例におけるローパスフィルタ特性
を示す特性図、第３図は本考案に、係る光学的ローパス
フィルタの一実施例を示す要部横断面図、第４図は本考
案の実施例におけるローパスフィルタ特性を示す特性図
である。 ５・・・・・・光学的ローパスフィルタ、６・・・・・
・第１複屈折板、７・・・・・・十波長板、８・・間第
２複屈折板、１１・・・・・・撮像部。FIG. 1 is a cross-sectional view of main parts showing a conventional example of an optical low-pass filter, FIG. 2 is a characteristic diagram showing low-pass filter characteristics in the conventional example, and FIG. 3 is an implementation of the optical low-pass filter according to the present invention. FIG. 4 is a cross-sectional view of a main part showing an example, and FIG. 4 is a characteristic diagram showing low-pass filter characteristics in an embodiment of the present invention. 5... Optical low pass filter, 6...
・First birefringence plate, 7... ten wavelength plate, 8... second birefringence plate, 11... imaging section.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 離散的撮像系における空間サンプリング周波数ｆｓに対
して＋ｆｓに最初のトラップポイントを与える第１の複
屈折板とｆｓに最初のトラップポイントを与える第２の
複屈折板とを直列配置して成る光学的ローパスフィルタ
。An optical system consisting of a first birefringent plate that provides an initial trap point at +fs and a second birefringent plate that provides an initial trap point at fs, arranged in series with respect to the spatial sampling frequency fs in a discrete imaging system. low pass filter.
JP1982090234U 1982-06-18 1982-06-18 optical low pass filter Granted JPS58192617U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1982090234U JPS58192617U (en) 1982-06-18 1982-06-18 optical low pass filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1982090234U JPS58192617U (en) 1982-06-18 1982-06-18 optical low pass filter

Publications (2)

Publication Number Publication Date
JPS58192617U true JPS58192617U (en) 1983-12-21
JPS6217778Y2 JPS6217778Y2 (en) 1987-05-08

Family

ID=30098770

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1982090234U Granted JPS58192617U (en) 1982-06-18 1982-06-18 optical low pass filter

Country Status (1)

Country Link
JP (1) JPS58192617U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5114033A (en) * 1974-06-20 1976-02-04 Westinghouse Electric Corp
JPS5445152A (en) * 1977-09-17 1979-04-10 Victor Co Of Japan Ltd Optical comb type filter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5114033A (en) * 1974-06-20 1976-02-04 Westinghouse Electric Corp
JPS5445152A (en) * 1977-09-17 1979-04-10 Victor Co Of Japan Ltd Optical comb type filter

Also Published As

Publication number Publication date
JPS6217778Y2 (en) 1987-05-08

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