GB1214717A - Arrangement for providing a reference mark in optical apparatus - Google Patents

Arrangement for providing a reference mark in optical apparatus

Info

Publication number
GB1214717A
GB1214717A GB2214668A GB2214668A GB1214717A GB 1214717 A GB1214717 A GB 1214717A GB 2214668 A GB2214668 A GB 2214668A GB 2214668 A GB2214668 A GB 2214668A GB 1214717 A GB1214717 A GB 1214717A
Authority
GB
United Kingdom
Prior art keywords
hologram
image
axis
optical
reference mark
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.)
Expired
Application number
GB2214668A
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.)
Alcatel Lucent SAS
Original Assignee
Compagnie Generale dElectricite SA
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 Compagnie Generale dElectricite SA filed Critical Compagnie Generale dElectricite SA
Publication of GB1214717A publication Critical patent/GB1214717A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/22—Processes or apparatus for obtaining an optical image from holograms
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/02—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices involving prisms or mirrors
    • G02B23/10—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices involving prisms or mirrors reflecting into the field of view additional indications, e.g. from collimator
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Optics & Photonics (AREA)
  • Holo Graphy (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

1,214,717. Utilising holograms. COMPAGNIE GENERALE D'ELECTRICITE. May 9, 1968 [May 10, 1967] No.22146/68. Heading G2J. A reference mark is formed at a desired position along the optical path of an optical apparatus by locating in said apparatus at least one hologram of a desired reference mark, a source of coherent light and an optical system to form the holographic image at the required position. The hologram may be either aligned with the optical axis or located along a line perpendicular to that axis, the image being transmitted along the axis via a semi-transparent plate. In one embodiment a hologram 16, Fig.1b, is located in an arm perpendicular to the main axis of the apparatus, being illuminated by a coherent light source 12, the image being deflected by plate 19. In a further embodiment the hologram 16 is used to provide a visual image 24, Fig.2, of cross-wires at the focal point of a collinator lens 18 a distance P from that lens located externally of the apparatus. Another alternative in a microscope similar to Fig.1b, utilizes a hologram to provide a cross-wire reference image between the two lenses of the eyepiece and coincident with the image of the object under view. In a final embodiment a single hologram with two superimposed references marks is used in a sighting device to provide two aligned but spaced real images on the optical axis of the device.
GB2214668A 1967-05-10 1968-05-09 Arrangement for providing a reference mark in optical apparatus Expired GB1214717A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR105964A FR1532389A (en) 1967-05-10 1967-05-10 Device providing a mark image in an optical device

Publications (1)

Publication Number Publication Date
GB1214717A true GB1214717A (en) 1970-12-02

Family

ID=8630611

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2214668A Expired GB1214717A (en) 1967-05-10 1968-05-09 Arrangement for providing a reference mark in optical apparatus

Country Status (7)

Country Link
BE (1) BE714277A (en)
CH (1) CH479880A (en)
DE (1) DE1772321A1 (en)
FR (1) FR1532389A (en)
GB (1) GB1214717A (en)
LU (1) LU55989A1 (en)
NL (1) NL6806127A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50147931A (en) * 1974-05-20 1975-11-27
JPS52116259A (en) * 1976-07-16 1977-09-29 Ogoshi Takaaki Measuring method
US4200380A (en) * 1977-10-06 1980-04-29 Canon Kabushiki Kaisha Camera provided with means for giving information about photographing
GB2140168A (en) * 1983-04-05 1984-11-21 Fuji Photo Film Co Ltd Automatic focusing

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT323808B (en) * 1969-12-19 1975-07-25 Siemens Ag METHOD FOR MANUFACTURING SEMI-CONDUCTOR COMPONENTS WITH HOLOGRAPHIC PROJECTION OF THE ETCHING PATTERNS AND ARRANGEMENT FOR THEM
US3633988A (en) * 1970-07-10 1972-01-11 Us Navy Helmet-mounted holographic aiming sight
JPS5332048A (en) * 1976-09-07 1978-03-25 Canon Inc Information mark display device
JPS5518664A (en) * 1978-07-27 1980-02-08 Canon Inc Information mark display device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50147931A (en) * 1974-05-20 1975-11-27
JPS5827504B2 (en) * 1974-05-20 1983-06-09 キヤノン株式会社 Information display method on image monitor
JPS52116259A (en) * 1976-07-16 1977-09-29 Ogoshi Takaaki Measuring method
US4200380A (en) * 1977-10-06 1980-04-29 Canon Kabushiki Kaisha Camera provided with means for giving information about photographing
GB2140168A (en) * 1983-04-05 1984-11-21 Fuji Photo Film Co Ltd Automatic focusing

Also Published As

Publication number Publication date
FR1532389A (en) 1968-07-12
LU55989A1 (en) 1968-07-12
DE1772321A1 (en) 1971-01-28
NL6806127A (en) 1968-11-11
BE714277A (en) 1968-10-28
CH479880A (en) 1969-10-15

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees