GB228125A - Improvements in optical apparatus for educational purposes - Google Patents
Improvements in optical apparatus for educational purposesInfo
- Publication number
- GB228125A GB228125A GB31162/24A GB3116224A GB228125A GB 228125 A GB228125 A GB 228125A GB 31162/24 A GB31162/24 A GB 31162/24A GB 3116224 A GB3116224 A GB 3116224A GB 228125 A GB228125 A GB 228125A
- Authority
- GB
- United Kingdom
- Prior art keywords
- optical apparatus
- beneath
- lens
- casing
- educational purposes
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B25/00—Eyepieces; Magnifying glasses
- G02B25/002—Magnifying glasses
- G02B25/007—Magnifying glasses comprising other optical elements than lenses
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Toys (AREA)
- Instructional Devices (AREA)
Abstract
228,125. Bignold, E. J. Jan. 21, 1924, [Convention date]. Fittings, internal.-A number of small objects for nature study are mounted on a rotatable table or support 14 beneath a lens 15 which may be adjusted for focussing. The lens 15 and support 14 are mounted in a casing 10 beneath which is a magazine fitted with shelves 18 to receive additional mounts. Within the open portion 11 of the casing 10, mirrors 17 are arranged to reflect light upon the object under examination.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU228125X | 1924-01-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB228125A true GB228125A (en) | 1925-03-05 |
Family
ID=3711966
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB31162/24A Expired GB228125A (en) | 1924-01-21 | 1924-12-29 | Improvements in optical apparatus for educational purposes |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB228125A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5561604A (en) | 1988-12-08 | 1996-10-01 | Hallmark Cards, Incorporated | Computer controlled system for vending personalized products |
-
1924
- 1924-12-29 GB GB31162/24A patent/GB228125A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5561604A (en) | 1988-12-08 | 1996-10-01 | Hallmark Cards, Incorporated | Computer controlled system for vending personalized products |
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