SE7714278L - OPTICAL APPARATUS - Google Patents
OPTICAL APPARATUSInfo
- Publication number
- SE7714278L SE7714278L SE7714278A SE7714278A SE7714278L SE 7714278 L SE7714278 L SE 7714278L SE 7714278 A SE7714278 A SE 7714278A SE 7714278 A SE7714278 A SE 7714278A SE 7714278 L SE7714278 L SE 7714278L
- Authority
- SE
- Sweden
- Prior art keywords
- image
- grooves
- viewer
- view
- enlarged
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title abstract 2
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/0081—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means for altering, e.g. enlarging, the entrance or exit pupil
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Microscoopes, Condenser (AREA)
- Lenses (AREA)
Abstract
The output aperture of a normal microscope generally has only a limited diameter, with the result that the eye of the viewer must be in a precisely defined position in order to observe the image. Multilens elements are already known with the aid of which it is possible by rotation to view a completely enlarged field, but with the disadvantage of a degraded image quality at the image centre. The invention eliminates this disadvantage by means of an essentially planar optical device, corresponding sets of parallel grooves being present on two parallel surfaces (42, 44) of the device in such a way that the grooves in one surface are arranged transverse to the grooves in the other surface. The action of the device provided with grooves consists in the provision of an enlarged aperture with perfect image quality, specifically both in the state of rest and during rotation of the device about an axis (46). The viewer (50) sees an enlarged image with a complete field of view. The viewer can easily change the position of his head without the complete field of view thereby being lost. <IMAGE>
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB228577A GB1586701A (en) | 1977-01-20 | 1977-01-20 | Disc with line transmitters |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE7714278L true SE7714278L (en) | 1978-07-21 |
| SE425579B SE425579B (en) | 1982-10-11 |
Family
ID=9736875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE7714278A SE425579B (en) | 1977-01-20 | 1977-12-15 | OPTICAL SYSTEM |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS5393024A (en) |
| CA (1) | CA1098352A (en) |
| CH (1) | CH619791A5 (en) |
| DE (1) | DE2801262C2 (en) |
| FR (1) | FR2378293A1 (en) |
| GB (1) | GB1586701A (en) |
| SE (1) | SE425579B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3224227C1 (en) * | 1982-06-29 | 1983-12-15 | C. Reichert Optische Werke AG, 1170 Wien | Projection device for microscopes |
| FR2638858B1 (en) * | 1988-11-04 | 1991-02-08 | Rossignol Gerard | OPTO-MECHANICAL THREE-DIMENSIONAL IMAGE PROJECTION AND OBSERVATION DEVICE |
| US6028704A (en) * | 1993-05-17 | 2000-02-22 | Freeman; Robin John | Optical instrument and optical element thereof |
| GB9310077D0 (en) * | 1993-05-17 | 1993-06-30 | Freeman Robin J | Optical instrument |
| US6608720B1 (en) | 1997-06-02 | 2003-08-19 | Robin John Freeman | Optical instrument and optical element thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3453035A (en) * | 1963-11-04 | 1969-07-01 | Diffraction Ltd Inc | Optical system with diffraction grating screen |
| GB1275917A (en) * | 1968-12-12 | 1972-06-01 | Vision Eng | Improvements in high magnification optical apparatus |
| JPS5019936A (en) * | 1973-06-28 | 1975-03-03 |
-
1977
- 1977-01-20 GB GB228577A patent/GB1586701A/en not_active Expired
- 1977-12-15 SE SE7714278A patent/SE425579B/en not_active IP Right Cessation
-
1978
- 1978-01-09 JP JP60278A patent/JPS5393024A/en active Pending
- 1978-01-09 CH CH16978A patent/CH619791A5/en not_active IP Right Cessation
- 1978-01-09 FR FR7800464A patent/FR2378293A1/en active Granted
- 1978-01-12 DE DE19782801262 patent/DE2801262C2/en not_active Expired
- 1978-01-19 CA CA295,266A patent/CA1098352A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2801262C2 (en) | 1984-01-19 |
| FR2378293B3 (en) | 1980-10-03 |
| DE2801262A1 (en) | 1978-07-27 |
| JPS5393024A (en) | 1978-08-15 |
| CA1098352A (en) | 1981-03-31 |
| FR2378293A1 (en) | 1978-08-18 |
| CH619791A5 (en) | 1980-10-15 |
| GB1586701A (en) | 1981-03-25 |
| SE425579B (en) | 1982-10-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NAL | Patent in force |
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| NUG | Patent has lapsed |
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