IE33592L - Microscopes or screen projectors - Google Patents
Microscopes or screen projectorsInfo
- Publication number
- IE33592L IE33592L IE137869A IE137869A IE33592L IE 33592 L IE33592 L IE 33592L IE 137869 A IE137869 A IE 137869A IE 137869 A IE137869 A IE 137869A IE 33592 L IE33592 L IE 33592L
- Authority
- IE
- Ireland
- Prior art keywords
- microscope
- faces
- screen
- microscopes
- lenticular
- Prior art date
Links
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
- G02B21/18—Arrangements with more than one light path, e.g. for comparing two specimens
- G02B21/20—Binocular arrangements
- G02B21/22—Stereoscopic arrangements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/36—Microscopes arranged for photographic purposes or projection purposes or digital imaging or video purposes including associated control and data processing arrangements
- G02B21/364—Projection microscopes
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Astronomy & Astrophysics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Microscoopes, Condenser (AREA)
- Overhead Projectors And Projection Screens (AREA)
- Lenses (AREA)
Abstract
1275917 Microscopes or screen projectors with enlarged exit pupils VISION ENG Ltd 1 Oct 1969 [12 Dec 1968] 59137/68 Heading G2J A microscope having no eye-pieces or a screen projector has means to position and illuminate an object to be viewed and an optical device for producing enlarged exit pupils which comprises in the light path to the eye of an observer a multiplicity of lenticular faces which are traversed within the light path such that when the motion of said faces exceeds the persistence of vision the angle of light egress is multiplied with respect to the angle of light incidence. In a microscope, a primary image at B is further imaged by an objective C and projection lens D and then passes through a beamsplitter prism E to collimator lens F abutting a rotating disc G having the lenticular reflective faces thereon. The magnified images so produced are further enlarged by field lens H and finally appear as enlarged exit pupils (approximately 2 inches to 5 inches in diameter) at normal interpupilliary distance. The lenticular faces on disc G may also be formed on an endless belt of aluminized plastics material (27) Fig. 5 (not shown), which is rotated or motor driven on rollers (29). In a profile screen projector they may be embossed as convex protrusions on a transparent plate, Fig. 4 (not shown). A non-stereoscopic microscope and a research microscope having the optical device are also described. Applications for such microscopes and screen projectors may be teaching aids, small screen displays and in sales promotion films.
[GB1275917A]
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5913768A GB1275917A (en) | 1968-12-12 | 1968-12-12 | Improvements in high magnification optical apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
IE33592L true IE33592L (en) | 1970-06-12 |
IE33592B1 IE33592B1 (en) | 1974-08-21 |
Family
ID=10483127
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IE137869A IE33592B1 (en) | 1968-12-12 | 1969-10-03 | Improvements in high magnification optical apparatus |
Country Status (9)
Country | Link |
---|---|
JP (1) | JPS5019936B1 (en) |
BE (1) | BE741175A (en) |
CH (1) | CH507525A (en) |
DE (1) | DE1962223B2 (en) |
FR (1) | FR2025931A1 (en) |
GB (1) | GB1275917A (en) |
IE (1) | IE33592B1 (en) |
NL (1) | NL142790B (en) |
SE (1) | SE379100B (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4099831A (en) * | 1971-11-29 | 1978-07-11 | Vision Engineering, Ltd. | High magnification optical apparatus with rotatable reflective lenticulated surface |
GB1586701A (en) * | 1977-01-20 | 1981-03-25 | Vision Eng Ltd | Disc with line transmitters |
GB8901477D0 (en) * | 1989-01-24 | 1989-03-15 | Vision Eng | Optical instrument |
US6608720B1 (en) | 1997-06-02 | 2003-08-19 | Robin John Freeman | Optical instrument and optical element thereof |
GB2464953A (en) * | 2008-10-30 | 2010-05-05 | Vision Eng | Optical instrument comprising an arrangement to increase the exit pupil size. |
-
1968
- 1968-12-12 GB GB5913768A patent/GB1275917A/en not_active Expired
-
1969
- 1969-10-03 IE IE137869A patent/IE33592B1/en unknown
- 1969-10-07 SE SE1375369A patent/SE379100B/xx unknown
- 1969-11-03 BE BE741175D patent/BE741175A/xx unknown
- 1969-11-06 CH CH1653469A patent/CH507525A/en not_active IP Right Cessation
- 1969-11-20 FR FR6939973A patent/FR2025931A1/fr active Pending
- 1969-12-04 NL NL6918219A patent/NL142790B/en not_active IP Right Cessation
- 1969-12-09 JP JP9843169A patent/JPS5019936B1/ja active Pending
- 1969-12-11 DE DE19691962223 patent/DE1962223B2/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
NL6918219A (en) | 1970-06-16 |
NL142790B (en) | 1974-07-15 |
DE1962223A1 (en) | 1970-07-09 |
DE1962223B2 (en) | 1976-01-29 |
IE33592B1 (en) | 1974-08-21 |
FR2025931A1 (en) | 1970-09-11 |
GB1275917A (en) | 1972-06-01 |
BE741175A (en) | 1970-04-16 |
CH507525A (en) | 1971-05-15 |
JPS5019936B1 (en) | 1975-07-10 |
SE379100B (en) | 1975-09-22 |
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