CA1314032C - Diffusion platelet - Google Patents

Diffusion platelet

Info

Publication number
CA1314032C
CA1314032C CA000605098A CA605098A CA1314032C CA 1314032 C CA1314032 C CA 1314032C CA 000605098 A CA000605098 A CA 000605098A CA 605098 A CA605098 A CA 605098A CA 1314032 C CA1314032 C CA 1314032C
Authority
CA
Canada
Prior art keywords
platelet
slit lamp
light emergence
instrument
ground glass
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 - Fee Related
Application number
CA000605098A
Other languages
English (en)
French (fr)
Inventor
Udo Mauersberger
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.)
Carl Zeiss AG
Original Assignee
Carl Zeiss AG
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 Carl Zeiss AG filed Critical Carl Zeiss AG
Application granted granted Critical
Publication of CA1314032C publication Critical patent/CA1314032C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
    • G02B5/0221—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures the surface having an irregular structure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
    • A61B3/12—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
    • A61B3/13—Ophthalmic microscopes
    • A61B3/135—Slit-lamp microscopes
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
    • G02B5/0231—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures the surface having microprismatic or micropyramidal shape
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/0257—Diffusing elements; Afocal elements characterised by the diffusing properties creating an anisotropic diffusion characteristic, i.e. distributing output differently in two perpendicular axes
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0273—Diffusing elements; Afocal elements characterized by the use
    • G02B5/0278—Diffusing elements; Afocal elements characterized by the use used in transmission

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Medical Informatics (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biophysics (AREA)
  • Molecular Biology (AREA)
  • Ophthalmology & Optometry (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Light Sources And Details Of Projection-Printing Devices (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Eye Examination Apparatus (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
CA000605098A 1988-07-09 1989-07-07 Diffusion platelet Expired - Fee Related CA1314032C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEG8808871.5 1988-07-09
DE8808871U DE8808871U1 (de) 1988-07-09 1988-07-09 Diffusionsplättchen für Spaltlampengeräte

Publications (1)

Publication Number Publication Date
CA1314032C true CA1314032C (en) 1993-03-02

Family

ID=6825857

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000605098A Expired - Fee Related CA1314032C (en) 1988-07-09 1989-07-07 Diffusion platelet

Country Status (6)

Country Link
US (1) US4936673A (en])
JP (1) JPH0612731Y2 (en])
AT (1) AT397341B (en])
CA (1) CA1314032C (en])
DE (1) DE8808871U1 (en])
NL (1) NL8901479A (en])

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10108254A1 (de) 2001-02-21 2002-08-22 Leica Microsystems Optische Betrachtungseinrichtung mit Vorrichtung zur partiellen Reduktion der Intensität der Beleuchtung
ES2281301B1 (es) 2006-10-16 2008-07-16 Universidad Complutense De Madrid Dispositivo de iluminacion con filtro terapeutico y profilactico para ojos sanos, pseudo-afaquicos y/o en proceso de neurodegeneracion.
US7832903B2 (en) * 2006-11-07 2010-11-16 Universidad Complutense De Madrid Illumination system fitted with a therapeutic/prophylactic filter for healthy eyes, pseudoaphakic eyes or eyes suffering neurodegeneration
US7914177B2 (en) 2006-11-07 2011-03-29 Universidad Complutense De Madrid Prophylaxic/therapeutic vehicle filter component for healthy eyes, pseudoaphakic eyes or eyes suffering neurodegeneration
ES2289957B1 (es) 2007-02-07 2008-12-01 Universidad Complutense De Madrid Fuente de iluminacion con emision reducida de longitudes de onda corta para la proteccion de ojos.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3944343A (en) * 1974-08-16 1976-03-16 Codman & Shurtleff, Inc. Light inclining accessory for slit lamp

Also Published As

Publication number Publication date
NL8901479A (nl) 1990-02-01
JPH0213504U (en]) 1990-01-29
US4936673A (en) 1990-06-26
JPH0612731Y2 (ja) 1994-04-06
AT397341B (de) 1994-03-25
ATA135289A (de) 1993-08-15
DE8808871U1 (de) 1988-09-01

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Legal Events

Date Code Title Description
MKLA Lapsed