CA2158917A1 - Colour deformable mirror device having optical thin film interference colour coatings - Google Patents

Colour deformable mirror device having optical thin film interference colour coatings

Info

Publication number
CA2158917A1
CA2158917A1 CA002158917A CA2158917A CA2158917A1 CA 2158917 A1 CA2158917 A1 CA 2158917A1 CA 002158917 A CA002158917 A CA 002158917A CA 2158917 A CA2158917 A CA 2158917A CA 2158917 A1 CA2158917 A1 CA 2158917A1
Authority
CA
Canada
Prior art keywords
colour
optical thin
thin film
film interference
deformable mirror
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
CA002158917A
Other languages
French (fr)
Other versions
CA2158917C (en
Inventor
Li Li
Jerzy A. Dobrowolski
Peter D. Grant
Brian Thomas Sullivan
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.)
National Research Council of Canada
Original Assignee
National Research Council Of Canada
Li Li
Jerzy A. Dobrowolski
Peter D. Grant
Brian Thomas Sullivan
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 National Research Council Of Canada, Li Li, Jerzy A. Dobrowolski, Peter D. Grant, Brian Thomas Sullivan filed Critical National Research Council Of Canada
Publication of CA2158917A1 publication Critical patent/CA2158917A1/en
Application granted granted Critical
Publication of CA2158917C publication Critical patent/CA2158917C/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
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/0816—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements
    • G02B26/0833—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements the reflecting element being a micromechanical device, e.g. a MEMS mirror, DMD
    • G02B26/0841—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements the reflecting element being a micromechanical device, e.g. a MEMS mirror, DMD the reflecting element being moved or deformed by electrostatic means

Abstract

A semiconductor device comprises a plurality of coloured deformable mirrors controllable by electrical circuitry. Groups of mirrors, responsive to the electronic signals, are selectably operable to reflect incident light. The deformable mirrors are coated with an optical thin film interference colour coating having at least a layer that is substantially transparent to the visible light. As well the optical thin filminterference colour coating includes at least one further layer that is partially absorbing with respect to the visible light. The spectral reflectance and absorptance of the deformable mirror is modified in order to obtain a desired reflectance colour by the process of optical interference enhanced absorption in the optical thin film interference colour coating. The optical thin film interference colour coating has predetermined layer thicknesses and materials; the substantially transparent layer substantially determines the desired reflected colour.
CA002158917A 1994-09-28 1995-09-20 Colour deformable mirror device having optical thin film interference colour coatings Expired - Fee Related CA2158917C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/314,003 US5619059A (en) 1994-09-28 1994-09-28 Color deformable mirror device having optical thin film interference color coatings
US08/314,003 1994-09-28

Publications (2)

Publication Number Publication Date
CA2158917A1 true CA2158917A1 (en) 1996-03-29
CA2158917C CA2158917C (en) 2002-02-05

Family

ID=23218113

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002158917A Expired - Fee Related CA2158917C (en) 1994-09-28 1995-09-20 Colour deformable mirror device having optical thin film interference colour coatings

Country Status (2)

Country Link
US (1) US5619059A (en)
CA (1) CA2158917C (en)

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Also Published As

Publication number Publication date
US5619059A (en) 1997-04-08
CA2158917C (en) 2002-02-05

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