JPS55105205A - Reflecting mirror and its production - Google Patents
Reflecting mirror and its productionInfo
- Publication number
- JPS55105205A JPS55105205A JP1293979A JP1293979A JPS55105205A JP S55105205 A JPS55105205 A JP S55105205A JP 1293979 A JP1293979 A JP 1293979A JP 1293979 A JP1293979 A JP 1293979A JP S55105205 A JPS55105205 A JP S55105205A
- Authority
- JP
- Japan
- Prior art keywords
- reflecting
- mirror
- semitransmitting
- reflecting mirror
- mask
- 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
Landscapes
- Viewfinders (AREA)
- Optical Elements Other Than Lenses (AREA)
- Cameras In General (AREA)
Abstract
PURPOSE: To obtain the reflecting mirror in which part of the toral reflecting surface is made into a semitranmitting part with simple work by letting minute areas of reflecting surfaces and transmitting surfaces intersperse in the center of the total reflecting surface of the reflecting mirror by the use of the specified method which utilizes a mask.
CONSTITUTION: Light from an optical system 2 is reflected by a reflecting mirror 1 and enters a finder 3. Part threof transmits through the mirror and enters a photo detector 4. A semitransmitting part 6 consisting of multiple fully transmitting surfaces 7 and totally reflecting surfaces 8 having minute areas of grating form is provided in the center of the totally reflecting part 5 of the mirror 1. This semitransmitting part 6 is formed by evaporating total reflecting material thereon in the state wherein the mask comprising blanking multiple minute area portions corresponding to the total reflecting surface is put on and removing the mask after this. Thereby, the reflecting mirror 1 having the semitransmitting part 6 may be obtained by the simple work. Accurate focusing and detection of measuring light may be accomplished with sufficient quantity of light passing through the semitransmitting part 6.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1293979A JPS55105205A (en) | 1979-02-07 | 1979-02-07 | Reflecting mirror and its production |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1293979A JPS55105205A (en) | 1979-02-07 | 1979-02-07 | Reflecting mirror and its production |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55105205A true JPS55105205A (en) | 1980-08-12 |
Family
ID=11819246
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1293979A Pending JPS55105205A (en) | 1979-02-07 | 1979-02-07 | Reflecting mirror and its production |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55105205A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4335421A (en) * | 1980-03-17 | 1982-06-15 | Modia Joseph W | Light fixture, light aperture and method of uniformly illuminating an optically diffusive viewing area |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5279944A (en) * | 1975-12-26 | 1977-07-05 | Anritsu Electric Co Ltd | Half mirror |
-
1979
- 1979-02-07 JP JP1293979A patent/JPS55105205A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5279944A (en) * | 1975-12-26 | 1977-07-05 | Anritsu Electric Co Ltd | Half mirror |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4335421A (en) * | 1980-03-17 | 1982-06-15 | Modia Joseph W | Light fixture, light aperture and method of uniformly illuminating an optically diffusive viewing area |
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