SE9804247D0 - Color selecting retroreflector - Google Patents

Color selecting retroreflector

Info

Publication number
SE9804247D0
SE9804247D0 SE9804247A SE9804247A SE9804247D0 SE 9804247 D0 SE9804247 D0 SE 9804247D0 SE 9804247 A SE9804247 A SE 9804247A SE 9804247 A SE9804247 A SE 9804247A SE 9804247 D0 SE9804247 D0 SE 9804247D0
Authority
SE
Sweden
Prior art keywords
lens
curvature
mirror
optical
retroreflector
Prior art date
Application number
SE9804247A
Other languages
Swedish (sv)
Other versions
SE512516C2 (en
SE9804247L (en
Inventor
Lars Danielsson
Staffan Niemann
Original Assignee
East Of Sweden Ab
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 East Of Sweden Ab filed Critical East Of Sweden Ab
Priority to SE9804247A priority Critical patent/SE9804247L/en
Publication of SE9804247D0 publication Critical patent/SE9804247D0/en
Priority to AU20173/00A priority patent/AU2017300A/en
Priority to PCT/SE1999/002270 priority patent/WO2000034807A1/en
Publication of SE512516C2 publication Critical patent/SE512516C2/en
Publication of SE9804247L publication Critical patent/SE9804247L/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/12—Reflex reflectors
    • G02B5/126—Reflex reflectors including curved refracting surface

Abstract

The present invention concerns a retroreflective device that is composed of an optical substrate (10) exhibiting an array of optical elements, the individual element pairs consisting of a focusing part, lens (12), and a reflecting part, mirror (13) and where the two parts have the shape of opposite spherical calottes with coinciding centres of curvature. The relation between the radii of curvature of the lens (12) and the mirror (13) has been adapted to the dispersion relation of the optical substrate (10) so that a preferred wavelength region is favoured. One characteristic following from this design is that the incident light defines the optical axis and that only the geometrical dimensions of the lens array limit the useable angles of incidence.
SE9804247A 1998-12-08 1998-12-08 Color selecting retroreflector SE9804247L (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE9804247A SE9804247L (en) 1998-12-08 1998-12-08 Color selecting retroreflector
AU20173/00A AU2017300A (en) 1998-12-08 1999-12-06 Wavelength-selective retro-reflector
PCT/SE1999/002270 WO2000034807A1 (en) 1998-12-08 1999-12-06 Wavelength-selective retro-reflector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9804247A SE9804247L (en) 1998-12-08 1998-12-08 Color selecting retroreflector

Publications (3)

Publication Number Publication Date
SE9804247D0 true SE9804247D0 (en) 1998-12-08
SE512516C2 SE512516C2 (en) 2000-03-27
SE9804247L SE9804247L (en) 2000-03-27

Family

ID=20413588

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9804247A SE9804247L (en) 1998-12-08 1998-12-08 Color selecting retroreflector

Country Status (3)

Country Link
AU (1) AU2017300A (en)
SE (1) SE9804247L (en)
WO (1) WO2000034807A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1317088B1 (en) * 2000-12-21 2003-05-26 Giorgio Corradi RETRO-REFLECTIVE FILM AND METHOD FOR MANUFACTURING IT, IN PARTICULAR FOR ROAD SIGNAGE.
SE530341C2 (en) 2006-08-22 2008-05-06 Rolling Optics Method and apparatus for angular determination with retroreflective film
DE102019209508A1 (en) 2019-06-28 2020-12-31 Deutsches Zentrum für Luft- und Raumfahrt e.V. Method and device for detecting a spatial area by means of radar waves

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4036552A (en) * 1975-02-10 1977-07-19 Minnesota Mining And Manufacturing Company Retroreflective material made by recording a plurality of light interference fringe patterns
SE503429C2 (en) * 1994-06-06 1996-06-10 Industrimateriel Ab retroreflector

Also Published As

Publication number Publication date
SE512516C2 (en) 2000-03-27
AU2017300A (en) 2000-06-26
SE9804247L (en) 2000-03-27
WO2000034807A1 (en) 2000-06-15

Similar Documents

Publication Publication Date Title
US5452126A (en) Lightweight binocular telescope
EP1660919B1 (en) Retroreflective device comprising gradient index lenses
AU2002212636A8 (en) Directed reflectors and systems utilizing same
ATE428127T1 (en) FIXED CATADIOPTRIC LENS WITH A SINGLE POINT OF VIEW
JPS6380196A (en) Sighting instrument
EP0051976A3 (en) Optical refractor for diffusing light
CA2280531A1 (en) F-sin (.theta.) lens system and method of use of same
EP0730180A3 (en) Reflecting type of zoom lens
WO2002033449A3 (en) Optical collimation lens
GB2421584A (en) Optical device with converging and diverging elements for directing light
EP0825466A3 (en) Optical element, optical system using optical element, and optical device with optical element
US4554448A (en) Optical elements
WO2002075348A3 (en) Omni-directional radiation source and object locator
MY125452A (en) Optical system with grating element and imaging device using the same
US20230213746A1 (en) Methods and devices for optimizing contrast for use with obscured imaging systems
JP4149265B2 (en) Low cost infrared camera
CA2492785A1 (en) Light receiving element module
SE9804247D0 (en) Color selecting retroreflector
JPS57195205A (en) Optical waveguide
US3054899A (en) Optical scanning system
KR870010410A (en) Lens
US20220382059A1 (en) Coupling feature for data glasses for coupling ambient light into an ambient light sensor located inside the spectacle frame
SE503429C2 (en) retroreflector
RU2012154841A (en) MIRROR AUTOCollimation Spectrometer
TWM636496U (en) Telescope device for portable electronic product

Legal Events

Date Code Title Description
NUG Patent has lapsed

Ref document number: 9804247-6

Format of ref document f/p: F