FR2271591A1 - Optical magnifier for weak-sighted reader - allows normal reading position to be maintained when magnifier placed on horizontal surface - Google Patents

Optical magnifier for weak-sighted reader - allows normal reading position to be maintained when magnifier placed on horizontal surface

Info

Publication number
FR2271591A1
FR2271591A1 FR7403882A FR7403882A FR2271591A1 FR 2271591 A1 FR2271591 A1 FR 2271591A1 FR 7403882 A FR7403882 A FR 7403882A FR 7403882 A FR7403882 A FR 7403882A FR 2271591 A1 FR2271591 A1 FR 2271591A1
Authority
FR
France
Prior art keywords
magnifier
horizontal surface
weak
maintained
reading position
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
FR7403882A
Other languages
French (fr)
Other versions
FR2271591B1 (en
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.)
RETHORE GERARD FR
Original Assignee
RETHORE GERARD FR
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 RETHORE GERARD FR filed Critical RETHORE GERARD FR
Priority to FR7403882A priority Critical patent/FR2271591A1/en
Publication of FR2271591A1 publication Critical patent/FR2271591A1/en
Application granted granted Critical
Publication of FR2271591B1 publication Critical patent/FR2271591B1/fr
Granted 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
    • G02B27/02—Viewing or reading apparatus
    • G02B27/021—Reading apparatus

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Telescopes (AREA)
  • Lenses (AREA)

Abstract

The magnifying device (1) comprises a means of allowing the use of the apparatus on a horizontal surface (2) which supports the object to be viewed, (2) the observer being able to position himself in a natural and comfortable manner i.e. without being obliged to cast his look vertically across the magnifying device or to apply his eye (4) or eyes to the eye-piece of the device. A means (7, 8) is provided whereby a large horizontal binocular field of view is assured through a similar optical system of high magnification, without appreciable aberration right up to the limits of the field.
FR7403882A 1974-01-31 1974-01-31 Optical magnifier for weak-sighted reader - allows normal reading position to be maintained when magnifier placed on horizontal surface Granted FR2271591A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7403882A FR2271591A1 (en) 1974-01-31 1974-01-31 Optical magnifier for weak-sighted reader - allows normal reading position to be maintained when magnifier placed on horizontal surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7403882A FR2271591A1 (en) 1974-01-31 1974-01-31 Optical magnifier for weak-sighted reader - allows normal reading position to be maintained when magnifier placed on horizontal surface

Publications (2)

Publication Number Publication Date
FR2271591A1 true FR2271591A1 (en) 1975-12-12
FR2271591B1 FR2271591B1 (en) 1977-06-10

Family

ID=9134529

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7403882A Granted FR2271591A1 (en) 1974-01-31 1974-01-31 Optical magnifier for weak-sighted reader - allows normal reading position to be maintained when magnifier placed on horizontal surface

Country Status (1)

Country Link
FR (1) FR2271591A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4099851A (en) * 1976-05-07 1978-07-11 Gerard Rethore Reading aid

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4099851A (en) * 1976-05-07 1978-07-11 Gerard Rethore Reading aid

Also Published As

Publication number Publication date
FR2271591B1 (en) 1977-06-10

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