JPS5665102A - Optical device - Google Patents

Optical device

Info

Publication number
JPS5665102A
JPS5665102A JP14176579A JP14176579A JPS5665102A JP S5665102 A JPS5665102 A JP S5665102A JP 14176579 A JP14176579 A JP 14176579A JP 14176579 A JP14176579 A JP 14176579A JP S5665102 A JPS5665102 A JP S5665102A
Authority
JP
Japan
Prior art keywords
absorbent
light
plate
filter
diagonal
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
JP14176579A
Other languages
Japanese (ja)
Inventor
Takashi Nagata
Yoshiharu Yamamoto
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP14176579A priority Critical patent/JPS5665102A/en
Publication of JPS5665102A publication Critical patent/JPS5665102A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0018—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means for preventing ghost images

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Surface Treatment Of Optical Elements (AREA)

Abstract

PURPOSE:To prevent flare ghosts owing to reflection of diagonal luminous fluxes in an optical low-pass filter of a single tube type colar camera, by providing a light absorbing layer on the side face of an optical anisotropic crystal constituting the filter. CONSTITUTION:In a single tube type color camera, the image of a subject by an imaging optical system 2 is formed on the photoelectric surface of an image pickup tube 2 by way of a birefringent plate of crystal or the like and a stripe filter 4 for color separation. Normal light and extraordinary light are spacially separated by the plate 3 and space frequency filter characteristics are shown. A light absorbent 10 is coated on the side face 6 parallel to the optical axis 1 of the plate 3, and a diagonal luminous flux 9 is scattered and absorbed by the pigments contained in the absorbent 10, whereby flare ghosts are prevented. The carbon vacuum deposited or sputtered on a satin surface is used as the absorbent. In addition, stray light is suppressed more by the absorbent of a refractive index close to that of the plate 3.
JP14176579A 1979-10-31 1979-10-31 Optical device Pending JPS5665102A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14176579A JPS5665102A (en) 1979-10-31 1979-10-31 Optical device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14176579A JPS5665102A (en) 1979-10-31 1979-10-31 Optical device

Publications (1)

Publication Number Publication Date
JPS5665102A true JPS5665102A (en) 1981-06-02

Family

ID=15299650

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14176579A Pending JPS5665102A (en) 1979-10-31 1979-10-31 Optical device

Country Status (1)

Country Link
JP (1) JPS5665102A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63124213U (en) * 1987-02-05 1988-08-12
EP0573843A2 (en) * 1992-06-08 1993-12-15 Matsushita Electric Industrial Co., Ltd. Lens holder and method for making a thin film

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63124213U (en) * 1987-02-05 1988-08-12
EP0573843A2 (en) * 1992-06-08 1993-12-15 Matsushita Electric Industrial Co., Ltd. Lens holder and method for making a thin film
EP0573843A3 (en) * 1992-06-08 1994-12-14 Matsushita Electric Ind Co Ltd Lens holder and method for making a thin film.
US5612085A (en) * 1992-06-08 1997-03-18 Matsushita Electric Industrial Co., Ltd. Lens holder and method for making a thin film

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