FI63118C - Laogblaendande samlingslins foer en oh-projektor - Google Patents

Laogblaendande samlingslins foer en oh-projektor Download PDF

Info

Publication number: FI63118C
Authority: FI; Finland
Prior art keywords: lens; lenses; stepped; staggered; cylindrical
Prior art date: 1974-08-21

Application number

FI752349A

Other languages

English (en)

Finnish (fi)

Swedish (sv)

Other versions

FI63118B (fi

FI752349A (de

Inventor

Raymond Harry Andersson

Gregory Scott Lewer

Terrence Michael Conder

Donald John Newman

Original Assignee

Minnesota Mining & Mfg

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.)

1974-08-21

Filing date

1975-08-20

Publication date

1983-04-11

1975-03-03 Priority claimed from US05/554,417 external-priority patent/US3982822A/en

1975-08-20 Application filed by Minnesota Mining & Mfg filed Critical Minnesota Mining & Mfg

1976-02-22 Publication of FI752349A publication Critical patent/FI752349A/fi

1982-12-31 Application granted granted Critical

1982-12-31 Publication of FI63118B publication Critical patent/FI63118B/fi

1983-04-11 Publication of FI63118C publication Critical patent/FI63118C/fi

Links

239000011521 glass Substances 0.000 claims description 20
239000000463 material Substances 0.000 claims description 11
230000000694 effects Effects 0.000 claims description 8
230000004313 glare Effects 0.000 description 14
229920003023 plastic Polymers 0.000 description 14
239000004033 plastic Substances 0.000 description 14
230000003287 optical effect Effects 0.000 description 10
238000000465 moulding Methods 0.000 description 6
239000011248 coating agent Substances 0.000 description 5
238000000576 coating method Methods 0.000 description 5
229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 5
238000004519 manufacturing process Methods 0.000 description 4
229920003229 poly(methyl methacrylate) Polymers 0.000 description 4
239000004926 polymethyl methacrylate Substances 0.000 description 4
229920005989 resin Polymers 0.000 description 4
239000011347 resin Substances 0.000 description 4
229920006217 cellulose acetate butyrate Polymers 0.000 description 3
239000004417 polycarbonate Substances 0.000 description 3
229920000515 polycarbonate Polymers 0.000 description 3
RKDVKSZUMVYZHH-UHFFFAOYSA-N 1,4-dioxane-2,5-dione Chemical compound O=C1COC(=O)CO1 RKDVKSZUMVYZHH-UHFFFAOYSA-N 0.000 description 2
VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 2
239000003570 air Substances 0.000 description 2
230000001174 ascending effect Effects 0.000 description 2
229920000642 polymer Polymers 0.000 description 2
VXHYVVAUHMGCEX-UHFFFAOYSA-N 2-(2-hydroxyphenoxy)phenol Chemical compound OC1=CC=CC=C1OC1=CC=CC=C1O VXHYVVAUHMGCEX-UHFFFAOYSA-N 0.000 description 1
KUBDPQJOLOUJRM-UHFFFAOYSA-N 2-(chloromethyl)oxirane;4-[2-(4-hydroxyphenyl)propan-2-yl]phenol Chemical compound ClCC1CO1.C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 KUBDPQJOLOUJRM-UHFFFAOYSA-N 0.000 description 1
OXQGTIUCKGYOAA-UHFFFAOYSA-N 2-Ethylbutanoic acid Chemical compound CCC(CC)C(O)=O OXQGTIUCKGYOAA-UHFFFAOYSA-N 0.000 description 1
ZAWQXWZJKKICSZ-UHFFFAOYSA-N 3,3-dimethyl-2-methylidenebutanamide Chemical compound CC(C)(C)C(=C)C(N)=O ZAWQXWZJKKICSZ-UHFFFAOYSA-N 0.000 description 1
NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
PYGXAGIECVVIOZ-UHFFFAOYSA-N Dibutyl decanedioate Chemical compound CCCCOC(=O)CCCCCCCCC(=O)OCCCC PYGXAGIECVVIOZ-UHFFFAOYSA-N 0.000 description 1
101100128278 Mus musculus Lins1 gene Proteins 0.000 description 1
WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 description 1
230000004075 alteration Effects 0.000 description 1
238000005452 bending Methods 0.000 description 1
230000006835 compression Effects 0.000 description 1
238000007906 compression Methods 0.000 description 1
239000012141 concentrate Substances 0.000 description 1
238000010276 construction Methods 0.000 description 1
238000001816 cooling Methods 0.000 description 1
239000000498 cooling water Substances 0.000 description 1
229910052802 copper Inorganic materials 0.000 description 1
239000010949 copper Substances 0.000 description 1
230000001066 destructive effect Effects 0.000 description 1
230000009977 dual effect Effects 0.000 description 1
239000000428 dust Substances 0.000 description 1
229920001971 elastomer Polymers 0.000 description 1
OBNCKNCVKJNDBV-UHFFFAOYSA-N ethyl butyrate Chemical compound CCCC(=O)OCC OBNCKNCVKJNDBV-UHFFFAOYSA-N 0.000 description 1
125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
239000005329 float glass Substances 0.000 description 1
239000004811 fluoropolymer Substances 0.000 description 1
229920002313 fluoropolymer Polymers 0.000 description 1
210000003128 head Anatomy 0.000 description 1
238000005286 illumination Methods 0.000 description 1
238000002844 melting Methods 0.000 description 1
230000008018 melting Effects 0.000 description 1
230000005499 meniscus Effects 0.000 description 1
125000005395 methacrylic acid group Chemical group 0.000 description 1
238000000034 method Methods 0.000 description 1
238000005065 mining Methods 0.000 description 1
230000000116 mitigating effect Effects 0.000 description 1
239000004014 plasticizer Substances 0.000 description 1
229920001296 polysiloxane Polymers 0.000 description 1
239000011253 protective coating Substances 0.000 description 1
230000000630 rising effect Effects 0.000 description 1
239000005336 safety glass Substances 0.000 description 1
238000006748 scratching Methods 0.000 description 1
230000002393 scratching effect Effects 0.000 description 1
238000007789 sealing Methods 0.000 description 1
230000035939 shock Effects 0.000 description 1
229920002379 silicone rubber Polymers 0.000 description 1
239000004945 silicone rubber Substances 0.000 description 1
239000002904 solvent Substances 0.000 description 1
229920001897 terpolymer Polymers 0.000 description 1

Classifications

- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
- G02B19/0009—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having refractive surfaces only
- G02B19/0014—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having refractive surfaces only at least one surface having optical power
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
- G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/02—Simple or compound lenses with non-spherical faces
- G02B3/08—Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/132—Overhead projectors, i.e. capable of projecting hand-writing or drawing during action
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/418—Refractive
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2551/00—Optical elements

Landscapes

Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Optics & Photonics (AREA)
Overhead Projectors And Projection Screens (AREA)
Projection Apparatus (AREA)
Lenses (AREA)
Liquid Crystal (AREA)

FI752349A 1974-08-21 1975-08-20 Laogblaendande samlingslins foer en oh-projektor FI63118C (fi)

Applications Claiming Priority (4)

Application Number	Priority Date	Filing Date	Title
US49913874A	1974-08-21	1974-08-21
US49913874		1974-08-21
US55441775		1975-03-03
US05/554,417 US3982822A (en)	1975-03-03	1975-03-03	Composite Fresnel lens assembly

Publications (3)

Publication Number	Publication Date
FI752349A FI752349A (de)	1976-02-22
FI63118B FI63118B (fi)	1982-12-31
FI63118C true FI63118C (fi)	1983-04-11

Family

ID=27053045

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI752349A FI63118C (fi)	1974-08-21	1975-08-20	Laogblaendande samlingslins foer en oh-projektor

Country Status (9)

Country	Link
JP (1)	JPS5343825B2 (de)
AU (1)	AU475642B2 (de)
BR (1)	BR7505320A (de)
DE (1)	DE2537547C3 (de)
FI (1)	FI63118C (de)
FR (1)	FR2282656A1 (de)
GB (1)	GB1520471A (de)
IT (1)	IT1041287B (de)
SE (1)	SE418423B (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2472197A1 (fr) *	1979-12-18	1981-06-26	Cintra Daniel	Lentille de fresnel et son application a la television
DE4207940C2 (de) *	1992-03-12	1995-08-17	Gerd Kueppersbusch	Etikettiereinrichtung
US5296882A (en) *	1992-12-21	1994-03-22	Minnesota Mining And Manufacturing Company	Overhead projector with catadioptric fresnel lens
JP2957910B2 (ja) *	1994-07-08	1999-10-06	大日本スクリーン製造株式会社	照明装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3511563A (en) *	1967-11-14	1970-05-12	Minnesota Mining & Mfg	Projector
DE2317830C3 (de) *	1973-04-09	1980-06-19	Ernst Leitz Wetzlar Gmbh, 6300 Lahn- Wetzlar	Durchlicht-Schreibprojektor

1975
- 1975-08-11 SE SE7508976A patent/SE418423B/xx not_active IP Right Cessation
- 1975-08-20 JP JP10109575A patent/JPS5343825B2/ja not_active Expired
- 1975-08-20 BR BR7505320*A patent/BR7505320A/pt unknown
- 1975-08-20 FR FR7525722A patent/FR2282656A1/fr active Granted
- 1975-08-20 GB GB34651/75A patent/GB1520471A/en not_active Expired
- 1975-08-20 DE DE2537547A patent/DE2537547C3/de not_active Expired
- 1975-08-20 IT IT51014/75A patent/IT1041287B/it active
- 1975-08-20 FI FI752349A patent/FI63118C/fi not_active IP Right Cessation
- 1975-08-20 AU AU84117/75A patent/AU475642B2/en not_active Expired

Also Published As

Publication number	Publication date
BR7505320A (pt)	1976-08-03
JPS5343825B2 (de)	1978-11-22
AU475642B2 (en)	1976-08-26
SE7508976L (sv)	1976-02-23
JPS5152827A (de)	1976-05-10
GB1520471A (en)	1978-08-09
FI63118B (fi)	1982-12-31
DE2537547A1 (de)	1976-03-11
AU8411775A (en)	1976-08-26
FR2282656B1 (de)	1978-04-07
DE2537547C3 (de)	1981-05-27
FR2282656A1 (fr)	1976-03-19
FI752349A (de)	1976-02-22
SE418423B (sv)	1981-05-25
IT1041287B (it)	1980-01-10
DE2537547B2 (de)	1980-10-02

Legal Events

Date	Code	Title	Description
2004-08-31	MM	Patent lapsed	Owner name: MINNESOTA MINING AND MANUFACTURING COMPANY

Publication	Publication Date	Title
US7619824B2 (en)	2009-11-17	Variable optical arrays and variable manufacturing methods
US4666248A (en)	1987-05-19	Rear-projection screen
US3972593A (en)	1976-08-03	Louvered echelon lens
EP0333502B1 (de)	1994-09-21	Von innen beleuchtetes retro-reflektierendes Lichtzeichen
US7817909B2 (en)	2010-10-19	Optical device and light source
US7268950B2 (en)	2007-09-11	Variable optical arrays and variable manufacturing methods
US2804801A (en)	1957-09-03	Projection screens
JPH02108006A (ja)	1990-04-19	高いコントラストの放射状光ファイバ拡散フェースプレート
US20130063956A1 (en)	2013-03-14	Diffuser-integrated prism sheet for backlight units and method of manufacturing the same
CN101008778A (zh)	2007-08-01	宽视角薄膜单元及包括该薄膜单元的投影屏幕和显示设备
EP0569530A1 (de)	1993-11-18	Verkehrszeichensystem mit schrägen linsen
US4766684A (en)	1988-08-30	Lenticular screen for outdoor display
FI63118C (fi)	1983-04-11	Laogblaendande samlingslins foer en oh-projektor
US3964821A (en)	1976-06-22	Reflex reflecting system for road surface marking
US4606609A (en)	1986-08-19	Projection screen
US4118114A (en)	1978-10-03	Low-glare overhead projector
WO2005050264A2 (en)	2005-06-02	Variable optical arrays and variable manufacturing methods
CN209746177U (zh)	2019-12-06	一种光学透镜
US3958348A (en)	1976-05-25	Slide filing plate
US5936769A (en)	1999-08-10	Reflecting sheet
US5165186A (en)	1992-11-24	Sign readable at speed
GB1152019A (en)	1969-05-14	Optical Systems
CN216814049U (zh)	2022-06-24	一种切割成像灯镜头
CA1040466A (en)	1978-10-17	Low-glare overhead projector
CN211203923U (zh)	2020-08-07	照明模组、车灯及车辆