JPS5724831A - Light detector, and exposure meter and camera incorporating said detector - Google Patents
Light detector, and exposure meter and camera incorporating said detectorInfo
- Publication number
- JPS5724831A JPS5724831A JP10073880A JP10073880A JPS5724831A JP S5724831 A JPS5724831 A JP S5724831A JP 10073880 A JP10073880 A JP 10073880A JP 10073880 A JP10073880 A JP 10073880A JP S5724831 A JPS5724831 A JP S5724831A
- Authority
- JP
- Japan
- Prior art keywords
- light
- detector
- area
- infrared cut
- spd
- 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.)
- Granted
Links
- 238000010521 absorption reaction Methods 0.000 abstract 2
- 238000004519 manufacturing process Methods 0.000 abstract 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract 1
- -1 acryl Chemical group 0.000 abstract 1
- 239000003463 adsorbent Substances 0.000 abstract 1
- 150000004696 coordination complex Chemical class 0.000 abstract 1
- 230000007257 malfunction Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 229920000515 polycarbonate Polymers 0.000 abstract 1
- 239000004417 polycarbonate Substances 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 230000035945 sensitivity Effects 0.000 abstract 1
- 229910052710 silicon Inorganic materials 0.000 abstract 1
- 239000010703 silicon Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 239000010409 thin film Substances 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/208—Filters for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/02—Details
- G01J1/04—Optical or mechanical part supplementary adjustable parts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
- G01J1/4209—Photoelectric exposure meters for determining the exposure time in recording or reproducing
- G01J1/4214—Photoelectric exposure meters for determining the exposure time in recording or reproducing specially adapted for view-taking apparatus
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/22—Absorbing filters
- G02B5/223—Absorbing filters containing organic substances, e.g. dyes, inks or pigments
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/02—Details
- G01J1/04—Optical or mechanical part supplementary adjustable parts
- G01J1/0488—Optical or mechanical part supplementary adjustable parts with spectral filtering
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Optical Filters (AREA)
Abstract
PURPOSE:To improve a light-detecting motion capacity by enlarging a transmitance at a visibility area, to simplify a manufacturing process, and to reduce a manufacturing cost, by a method wherein 1 or 2 types or more of near infrared cut filters containing an organic infrared adsorbent are combined with a light-receiving element. CONSTITUTION:An infrared cut filter is produced such that an acryl or polycarbonate clear resin is caused to contain 1 or 2 types or more of color elements which are of a metal complex substance or organic salt and hardly perform an absorption at a visibility area and perform a powerful absorption at a near infrared area. The filter is combined with a light-receiving element, such as silicon photodiodes (SPD) to obtain a light detector. Self-exposure meters, cameras incorporating an exposure meter, into which the detector is built, are manufactured. Said infrared cut filter is soft, is easy to be formed into a thin film, and has a high transmitance at the visbility area, whereby it reduces a leak current through the reduction in the sensitivity of the SPD to prevent a malfunction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10073880A JPS5724831A (en) | 1980-07-21 | 1980-07-21 | Light detector, and exposure meter and camera incorporating said detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10073880A JPS5724831A (en) | 1980-07-21 | 1980-07-21 | Light detector, and exposure meter and camera incorporating said detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5724831A true JPS5724831A (en) | 1982-02-09 |
| JPH0258573B2 JPH0258573B2 (en) | 1990-12-10 |
Family
ID=14281901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10073880A Granted JPS5724831A (en) | 1980-07-21 | 1980-07-21 | Light detector, and exposure meter and camera incorporating said detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5724831A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5023388A (en) * | 1973-07-05 | 1975-03-13 | ||
| JPS53145689A (en) * | 1977-05-25 | 1978-12-19 | Canon Inc | Light receiving device |
-
1980
- 1980-07-21 JP JP10073880A patent/JPS5724831A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5023388A (en) * | 1973-07-05 | 1975-03-13 | ||
| JPS53145689A (en) * | 1977-05-25 | 1978-12-19 | Canon Inc | Light receiving device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0258573B2 (en) | 1990-12-10 |
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