NL8901479A - Diffusieplaatje. - Google Patents

Diffusieplaatje. Download PDF

Info

Publication number
NL8901479A
NL8901479A NL8901479A NL8901479A NL8901479A NL 8901479 A NL8901479 A NL 8901479A NL 8901479 A NL8901479 A NL 8901479A NL 8901479 A NL8901479 A NL 8901479A NL 8901479 A NL8901479 A NL 8901479A
Authority
NL
Netherlands
Prior art keywords
diffusion plate
slit lamp
light
illumination
lamp device
Prior art date
Application number
NL8901479A
Other languages
English (en)
Dutch (nl)
Original Assignee
Zeiss Carl Fa
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 Zeiss Carl Fa filed Critical Zeiss Carl Fa
Publication of NL8901479A publication Critical patent/NL8901479A/nl

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)
  • Optical Elements Other Than Lenses (AREA)
  • Light Sources And Details Of Projection-Printing Devices (AREA)
  • Eye Examination Apparatus (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
NL8901479A 1988-07-09 1989-06-09 Diffusieplaatje. NL8901479A (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8808871 1988-07-09
DE8808871U DE8808871U1 (de) 1988-07-09 1988-07-09 Diffusionsplättchen für Spaltlampengeräte

Publications (1)

Publication Number Publication Date
NL8901479A true NL8901479A (nl) 1990-02-01

Family

ID=6825857

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8901479A NL8901479A (nl) 1988-07-09 1989-06-09 Diffusieplaatje.

Country Status (6)

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

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
CA1314032C (en) 1993-03-02
AT397341B (de) 1994-03-25
DE8808871U1 (de) 1988-09-01
JPH0612731Y2 (ja) 1994-04-06
JPH0213504U (cs) 1990-01-29
US4936673A (en) 1990-06-26
ATA135289A (de) 1993-08-15

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Legal Events

Date Code Title Description
A1B A search report has been drawn up
BV The patent application has lapsed