GB398100A - Means for the division of a beam of light into two equal and parallel components - Google Patents
Means for the division of a beam of light into two equal and parallel componentsInfo
- Publication number
- GB398100A GB398100A GB512133A GB512133A GB398100A GB 398100 A GB398100 A GB 398100A GB 512133 A GB512133 A GB 512133A GB 512133 A GB512133 A GB 512133A GB 398100 A GB398100 A GB 398100A
- Authority
- GB
- United Kingdom
- Prior art keywords
- prism
- parallel
- layer
- light
- reflected
- 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
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/14—Beam splitting or combining systems operating by reflection only
- G02B27/144—Beam splitting or combining systems operating by reflection only using partially transparent surfaces without spectral selectivity
-
- 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
- G02B27/10—Beam splitting or combining systems
- G02B27/1006—Beam splitting or combining systems for splitting or combining different wavelengths
- G02B27/1013—Beam splitting or combining systems for splitting or combining different wavelengths for colour or multispectral image sensors, e.g. splitting an image into monochromatic image components on respective sensors
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
398,100. Optical systems. BELLING- HAM, L. and STANLEY, F., 71, Hornsey Rise, London. Feb. 20, 1933, No. 5121. [Class 97 (i).] A system for dividing an incident beam of light into two parallel beams of equal intensity comprises a prism of the Nicol type combined with means whereby the reflected beam is again reflected at a surface parallel with the reflecting surface of the prism so as to emerge parallel to, but spaced from, the incident beam and the component transmitted by the prism. In the form shown, the equivalent of a Nicol prism is formed by two glass prisms a, b separated by a layer c of doubly-refracting material. The light reflected by the layer c enters a prism d having a reflecting surface e parallel to the layer c, so that it emerges from the prism d in a direction parallel to that of the beam transmitted by the layer c and prism b. A rhomb g having two parallel reflecting surfaces may be placed against the exit surface of the prism b so as to alter the displacement between the two emergent beams without affecting their parallelism. The optical lengths of the two paths may be equalized by extending the appropriate exit member. When used for colour photography, either a double lens system l in rear of the dividing system, or a single lens l<1 >in front of the system, may be employed in conjunction with colour screens s<1>, s<2>.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB512133A GB398100A (en) | 1933-02-20 | 1933-02-20 | Means for the division of a beam of light into two equal and parallel components |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB512133A GB398100A (en) | 1933-02-20 | 1933-02-20 | Means for the division of a beam of light into two equal and parallel components |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB398100A true GB398100A (en) | 1933-09-07 |
Family
ID=9790099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB512133A Expired GB398100A (en) | 1933-02-20 | 1933-02-20 | Means for the division of a beam of light into two equal and parallel components |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB398100A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE747543C (en) * | 1938-02-13 | 1944-12-01 | Zeiss Ikon Ag | Device for reproducing stereo images |
| US2447828A (en) * | 1945-02-17 | 1948-08-24 | Polaroid Corp | Light-polarizing prism |
| US2476014A (en) * | 1944-04-17 | 1949-07-12 | Wright Edwin Herbert | Light polariser for producing light beams polarised in planes mutually at right angles from a single light beam |
| US2933994A (en) * | 1956-04-24 | 1960-04-26 | Bauer William Charles | Polarized light process and means for producing stereograms |
| US3536375A (en) * | 1967-01-30 | 1970-10-27 | Philips Corp | Light beam deflector system |
| WO2007064431A1 (en) * | 2005-11-30 | 2007-06-07 | Corning Incorporated | Light separator |
-
1933
- 1933-02-20 GB GB512133A patent/GB398100A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE747543C (en) * | 1938-02-13 | 1944-12-01 | Zeiss Ikon Ag | Device for reproducing stereo images |
| US2476014A (en) * | 1944-04-17 | 1949-07-12 | Wright Edwin Herbert | Light polariser for producing light beams polarised in planes mutually at right angles from a single light beam |
| US2447828A (en) * | 1945-02-17 | 1948-08-24 | Polaroid Corp | Light-polarizing prism |
| US2933994A (en) * | 1956-04-24 | 1960-04-26 | Bauer William Charles | Polarized light process and means for producing stereograms |
| US3536375A (en) * | 1967-01-30 | 1970-10-27 | Philips Corp | Light beam deflector system |
| WO2007064431A1 (en) * | 2005-11-30 | 2007-06-07 | Corning Incorporated | Light separator |
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