JPS5590911A - Projector - Google Patents
ProjectorInfo
- Publication number
- JPS5590911A JPS5590911A JP16604878A JP16604878A JPS5590911A JP S5590911 A JPS5590911 A JP S5590911A JP 16604878 A JP16604878 A JP 16604878A JP 16604878 A JP16604878 A JP 16604878A JP S5590911 A JPS5590911 A JP S5590911A
- Authority
- JP
- Japan
- Prior art keywords
- lenses
- bar
- grooved block
- telecentric
- block
- 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
- 239000000463 material Substances 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 230000003287 optical effect Effects 0.000 abstract 2
- 150000002739 metals Chemical class 0.000 abstract 1
- 230000000737 periodic effect Effects 0.000 abstract 1
- 239000005011 phenolic resin Substances 0.000 abstract 1
- 229920001568 phenolic resin Polymers 0.000 abstract 1
- 239000004033 plastic Substances 0.000 abstract 1
- 229920003023 plastic Polymers 0.000 abstract 1
- 239000002985 plastic film Substances 0.000 abstract 1
- 210000001747 pupil Anatomy 0.000 abstract 1
Landscapes
- Exposure Or Original Feeding In Electrophotography (AREA)
- Lenses (AREA)
- Optical Systems Of Projection Type Copiers (AREA)
Abstract
PURPOSE: To form the high-performance projection system by mounting a mask to the grooved block arrayed and fixed with the pipe materials inserted with bar-form lenses.
CONSTITUTION: The pipe materials 103 inserted with the 1st bar-form lenses 101 being telecentric on the exit side and 2nd bar-form lenses 102 being telecentric on the incident side, which have a uniform diameter and whose respective lengths in the optical axis direction are 2W60 times the effective diameter, are disposed in the periodic groove rows of the grooved block 114 composed of plastics such as phenolic resins or metals so as to become perpendicularly coaxial to the object surface and projection surface and are fixed by means of sheet-form members or the like, after which a mask 121 which is composed of a thin metal plate, plastic sheet or the like and is opened with holes only in the lens effective diameter regions is mounted to the neighborhood of the object side end face (incident pupil face) of the block 114. Thereby, the projection optical system which has no leaking light from the gaps between the lenses and grooved block is obtained.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16604878A JPS5590911A (en) | 1978-12-28 | 1978-12-28 | Projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16604878A JPS5590911A (en) | 1978-12-28 | 1978-12-28 | Projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5590911A true JPS5590911A (en) | 1980-07-10 |
Family
ID=15823985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16604878A Pending JPS5590911A (en) | 1978-12-28 | 1978-12-28 | Projector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5590911A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6426702U (en) * | 1987-08-10 | 1989-02-15 | ||
| JPS6426701U (en) * | 1987-08-05 | 1989-02-15 |
-
1978
- 1978-12-28 JP JP16604878A patent/JPS5590911A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6426701U (en) * | 1987-08-05 | 1989-02-15 | ||
| JPS6426702U (en) * | 1987-08-10 | 1989-02-15 |
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