DD237722A5 - Einfache linse mit zwei asphaerischen brechenden oberflaechen - Google Patents
Einfache linse mit zwei asphaerischen brechenden oberflaechen Download PDFInfo
- Publication number
- DD237722A5 DD237722A5 DD85281876A DD28187685A DD237722A5 DD 237722 A5 DD237722 A5 DD 237722A5 DD 85281876 A DD85281876 A DD 85281876A DD 28187685 A DD28187685 A DD 28187685A DD 237722 A5 DD237722 A5 DD 237722A5
- Authority
- DD
- German Democratic Republic
- Prior art keywords
- lens
- substrate
- reading
- preform
- optical
- Prior art date
Links
- 239000000758 substrate Substances 0.000 claims abstract description 21
- 229920003023 plastic Polymers 0.000 claims abstract description 9
- 230000003287 optical effect Effects 0.000 claims description 20
- 230000005855 radiation Effects 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 4
- 239000000969 carrier Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 230000001771 impaired effect Effects 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 239000010453 quartz Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 241000282461 Canis lupus Species 0.000 description 2
- 230000004075 alteration Effects 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- CPBQJMYROZQQJC-UHFFFAOYSA-N helium neon Chemical compound [He].[Ne] CPBQJMYROZQQJC-UHFFFAOYSA-N 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1372—Lenses
- G11B7/1374—Objective lenses
-
- 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
- G02B3/04—Simple or compound lenses with non-spherical faces with continuous faces that are rotationally symmetrical but deviate from a true sphere, e.g. so called "aspheric" lenses
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Lenses (AREA)
- Optical Head (AREA)
- Glass Compositions (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL8403198A NL8403198A (nl) | 1984-10-22 | 1984-10-22 | Enkelvoudige bi-asferische lens. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DD237722A5 true DD237722A5 (de) | 1986-07-23 |
Family
ID=19844640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DD85281876A DD237722A5 (de) | 1984-10-22 | 1985-10-18 | Einfache linse mit zwei asphaerischen brechenden oberflaechen |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US4641929A (fr) |
| EP (1) | EP0179531B1 (fr) |
| JP (1) | JPS61107201A (fr) |
| AT (1) | ATE40010T1 (fr) |
| AU (1) | AU4888585A (fr) |
| CA (1) | CA1267014A (fr) |
| DD (1) | DD237722A5 (fr) |
| DE (1) | DE3567543D1 (fr) |
| NL (1) | NL8403198A (fr) |
| SG (1) | SG52490G (fr) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8502225A (nl) * | 1985-06-10 | 1987-01-02 | Philips Nv | Replika lens en methode voor de vervaardiging ervan. |
| GB8606838D0 (en) * | 1986-03-19 | 1986-04-23 | Combined Optical Ind Ltd | Lens |
| JPH087329B2 (ja) * | 1986-05-19 | 1996-01-29 | コニカ株式会社 | 光情報の記録再生用光学系 |
| JPS6310119A (ja) * | 1986-07-02 | 1988-01-16 | Matsushita Electric Ind Co Ltd | 大口径単レンズ |
| GB2200763B (en) * | 1987-01-28 | 1991-02-13 | Combined Optical Ind Ltd | Stand magnifiers and lens |
| JPH0823626B2 (ja) * | 1987-07-29 | 1996-03-06 | コニカ株式会社 | 光ディスク用対物レンズ |
| JPH01136111A (ja) * | 1987-11-24 | 1989-05-29 | Minolta Camera Co Ltd | 単玉コリメータレンズ |
| US4932763A (en) * | 1988-07-28 | 1990-06-12 | Canon Kabushiki Kaisha | Aspherical single lens system for use with optical cards |
| JPH02223906A (ja) * | 1989-02-24 | 1990-09-06 | Hoya Corp | 有限系大口径非球面レンズ |
| JPH02119601U (fr) * | 1989-03-13 | 1990-09-26 | ||
| JPH02245715A (ja) * | 1989-03-17 | 1990-10-01 | Hoya Corp | 低分散ガラスモールド非球面単レンズ |
| US4979807A (en) * | 1989-04-12 | 1990-12-25 | Canon Kabushiki Kaisha | Biaspherical single lens for an optical information recording-reproducing apparatus |
| NL8901245A (nl) * | 1989-05-19 | 1990-12-17 | Philips Nv | Retrofokus objektieflens en optische aftastinrichting voorzien van een dergelijke lens. |
| US5572362A (en) * | 1992-04-20 | 1996-11-05 | Mitsubishi Denki Kabushiki Kaisha | Condenser lens, polarizing element, light source apparatus, and projection display apparatus |
| US5384659A (en) * | 1992-04-20 | 1995-01-24 | Mitsubishi Denki Kabushiki Kaisha | Condenser lens, polarizing element, light source apparatus, and projection display apparatus |
| FR2696609B1 (fr) * | 1992-10-02 | 1994-12-09 | Sagem | Tête d'analyse de télécopieur à réduction d'échelle. |
| JPH07140381A (ja) * | 1993-11-18 | 1995-06-02 | Sony Corp | コマ収差補正方法 |
| JPH0954247A (ja) * | 1995-08-10 | 1997-02-25 | Fuji Photo Optical Co Ltd | 光記録媒体読取用レンズ |
| JPH0954246A (ja) * | 1995-08-10 | 1997-02-25 | Fuji Photo Optical Co Ltd | 光記録媒体読取用レンズ |
| US6183108B1 (en) | 1998-03-30 | 2001-02-06 | Michael A. Herold | Lighting apparatus with convex-convex lens assembly |
| AT501203A1 (de) * | 2004-12-20 | 2006-07-15 | Ge Jenbacher Gmbh & Co Ohg | Linse für einen lasergezündeten verbrennungsmotor |
| US7826148B2 (en) * | 2007-02-15 | 2010-11-02 | Visera Technologies Company Limited | Aspheric lens structures and fabrication methods thereof |
| US10969560B2 (en) | 2017-05-04 | 2021-04-06 | Lightpath Technologies, Inc. | Integrated optical assembly and manufacturing the same |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3535023A (en) * | 1967-07-15 | 1970-10-20 | Director Of National Aerospace | Pipe lens having an inner surface of revolution |
| FR2271585B1 (fr) * | 1974-05-14 | 1976-10-15 | Philips Nv | |
| JPS5858887B2 (ja) * | 1976-08-17 | 1983-12-27 | 日立電線株式会社 | 管路気中送電線の接続方法 |
| JPS5913721B2 (ja) * | 1978-10-31 | 1984-03-31 | 富士通株式会社 | 球レンズ光学系 |
| JPS55127510A (en) * | 1979-03-26 | 1980-10-02 | Canon Inc | Aspherical lens of ophthalmologic apparatus |
| NL8103323A (nl) * | 1981-07-13 | 1983-02-01 | Philips Nv | Enkelvoudige lens met een sferisch en een asferisch brekend oppervlak. |
| NL8304212A (nl) * | 1983-12-07 | 1984-10-01 | Philips Nv | Enkelvoudige collimatorlens met een asferisch oppervlak. |
-
1984
- 1984-10-22 NL NL8403198A patent/NL8403198A/nl not_active Application Discontinuation
-
1985
- 1985-01-07 US US06/689,672 patent/US4641929A/en not_active Expired - Fee Related
- 1985-10-16 EP EP85201693A patent/EP0179531B1/fr not_active Expired
- 1985-10-16 DE DE8585201693T patent/DE3567543D1/de not_active Expired
- 1985-10-16 AT AT85201693T patent/ATE40010T1/de not_active IP Right Cessation
- 1985-10-17 CA CA000493204A patent/CA1267014A/fr not_active Expired - Lifetime
- 1985-10-18 DD DD85281876A patent/DD237722A5/de not_active IP Right Cessation
- 1985-10-21 JP JP60233566A patent/JPS61107201A/ja active Pending
- 1985-10-21 AU AU48885/85A patent/AU4888585A/en not_active Abandoned
-
1990
- 1990-07-04 SG SG52490A patent/SG52490G/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61107201A (ja) | 1986-05-26 |
| SG52490G (en) | 1990-08-31 |
| EP0179531B1 (fr) | 1989-01-11 |
| US4641929A (en) | 1987-02-10 |
| NL8403198A (nl) | 1986-05-16 |
| CA1267014A (fr) | 1990-03-27 |
| DE3567543D1 (en) | 1989-02-16 |
| AU4888585A (en) | 1986-05-01 |
| EP0179531A1 (fr) | 1986-04-30 |
| ATE40010T1 (de) | 1989-01-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ENJ | Ceased due to non-payment of renewal fee |