JPS5424651A - Schmitt lens of projection type television - Google Patents

Schmitt lens of projection type television

Info

Publication number
JPS5424651A
JPS5424651A JP9006477A JP9006477A JPS5424651A JP S5424651 A JPS5424651 A JP S5424651A JP 9006477 A JP9006477 A JP 9006477A JP 9006477 A JP9006477 A JP 9006477A JP S5424651 A JPS5424651 A JP S5424651A
Authority
JP
Japan
Prior art keywords
lens
schmitt
projection type
type television
point
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.)
Pending
Application number
JP9006477A
Other languages
Japanese (ja)
Inventor
Takashi Kataki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP9006477A priority Critical patent/JPS5424651A/en
Publication of JPS5424651A publication Critical patent/JPS5424651A/en
Pending legal-status Critical Current

Links

Landscapes

  • Transforming Electric Information Into Light Information (AREA)

Abstract

PURPOSE: To readily and stringently determine the shape of the lens by letting the face on the point B side of the lens wherein the light of a spot light source is reflected on spherical face and converges on the other one point B be a spherical face centering at the point B.
COPYRIGHT: (C)1979,JPO&Japio
JP9006477A 1977-07-27 1977-07-27 Schmitt lens of projection type television Pending JPS5424651A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9006477A JPS5424651A (en) 1977-07-27 1977-07-27 Schmitt lens of projection type television

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9006477A JPS5424651A (en) 1977-07-27 1977-07-27 Schmitt lens of projection type television

Publications (1)

Publication Number Publication Date
JPS5424651A true JPS5424651A (en) 1979-02-24

Family

ID=13988113

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9006477A Pending JPS5424651A (en) 1977-07-27 1977-07-27 Schmitt lens of projection type television

Country Status (1)

Country Link
JP (1) JPS5424651A (en)

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