JPS6444977A - Production of luminous flux coupling element - Google Patents
Production of luminous flux coupling elementInfo
- Publication number
- JPS6444977A JPS6444977A JP20226687A JP20226687A JPS6444977A JP S6444977 A JPS6444977 A JP S6444977A JP 20226687 A JP20226687 A JP 20226687A JP 20226687 A JP20226687 A JP 20226687A JP S6444977 A JPS6444977 A JP S6444977A
- Authority
- JP
- Japan
- Prior art keywords
- substrate
- transparent substrate
- coupling element
- diffraction grating
- curved shape
- 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.)
- Pending
Links
- 230000004907 flux Effects 0.000 title abstract 5
- 230000008878 coupling Effects 0.000 title abstract 3
- 238000010168 coupling process Methods 0.000 title abstract 3
- 238000005859 coupling reaction Methods 0.000 title abstract 3
- 239000000758 substrate Substances 0.000 abstract 10
- 239000000853 adhesive Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 230000000737 periodic effect Effects 0.000 abstract 1
Landscapes
- Holo Graphy (AREA)
Abstract
PURPOSE:To enable good observation by forming a straight diffraction grating structure having periodic structures at equal intervals onto a transparent plane substrate, then curving this plane substrate to a curved shape, thereby forming a luminous flux coupling element. CONSTITUTION:Parallel luminous fluxes 6 and parallel luminous fluxes 9 enter a hologram recording material 26 on the transparent substrate 24 respectively at incident angles theta2, theta1 and interfere with each other to generate interference fringes, by which the diffraction grating of a volume phase type is formed. A cutter 19 is combined with a corresponding die and the diffraction grating 26' and the transparent substrate 24' are cut out and are adhered via an adhesive agent layer onto the transparent substrate 18. Further, the transparent substrate 18 is curved to the curved shape or, if the transparent substrate 18 is a resilient stock, the substrate is stuck to the transparent substrate having the curved shape at need, by which the luminous flux coupling element is produced. The brighter display is thereby enabled and the generation of double images is prevented as there is no reflected light from the rear of the substrate. The good observation is thus enabled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20226687A JPS6444977A (en) | 1987-08-13 | 1987-08-13 | Production of luminous flux coupling element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20226687A JPS6444977A (en) | 1987-08-13 | 1987-08-13 | Production of luminous flux coupling element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6444977A true JPS6444977A (en) | 1989-02-17 |
Family
ID=16454693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20226687A Pending JPS6444977A (en) | 1987-08-13 | 1987-08-13 | Production of luminous flux coupling element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6444977A (en) |
-
1987
- 1987-08-13 JP JP20226687A patent/JPS6444977A/en active Pending
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