JPS6182123A - Color detecting device - Google Patents
Color detecting deviceInfo
- Publication number
- JPS6182123A JPS6182123A JP59203858A JP20385884A JPS6182123A JP S6182123 A JPS6182123 A JP S6182123A JP 59203858 A JP59203858 A JP 59203858A JP 20385884 A JP20385884 A JP 20385884A JP S6182123 A JPS6182123 A JP S6182123A
- Authority
- JP
- Japan
- Prior art keywords
- light
- color
- photodetecting
- detection
- color separating
- 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
- 238000001514 detection method Methods 0.000 claims abstract description 29
- 230000035945 sensitivity Effects 0.000 claims abstract description 6
- 230000003595 spectral effect Effects 0.000 claims description 2
- 230000003321 amplification Effects 0.000 abstract description 7
- 238000003199 nucleic acid amplification method Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 4
- 238000000926 separation method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000002747 voluntary effect Effects 0.000 description 1
Classifications
-
- 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
- G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
- G01J1/20—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle
- G01J1/22—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle using a variable element in the light-path, e.g. filter, polarising means
- G01J1/24—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle using a variable element in the light-path, e.g. filter, polarising means 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
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
- G01J3/50—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors
- G01J3/51—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors using colour filters
-
- 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
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
- G01J3/50—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors
- G01J3/51—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors using colour filters
- G01J3/513—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors using colour filters having fixed filter-detector pairs
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Spectrometry And Color Measurement (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
Description
【発明の詳細な説明】 「発明の対象技術分野」 この発明は色彩検出装置の改良に関する。[Detailed description of the invention] "Technical field covered by the invention" This invention relates to improvements in color detection devices.
「従来装置およびその問題点」
従来の色分解受光素子群を用（・た色彩検出装置では色
分解受光素子群は、それぞれの感度が異なるため、分光
分布特性が受光素子群の検出波長域で平坦な理想光１０
を同光量ずつ受けたとしても、これらの受光素子群の出
力比は１：ｌ：・・・・・・：ｌにはならな（・。"Conventional devices and their problems" In color detection devices that use conventional color-separating light-receiving elements, the sensitivity of each color-separating light-receiving element group is different, so the spectral distribution characteristics vary within the detection wavelength range of the light-receiving element group. flat ideal light 10
Even if they each receive the same amount of light, the output ratio of these light receiving element groups will not be 1:l:...:l (.
第２図の色彩構出装置は、検出光を色分解受光素子群に
照射する受光レンズエ、、３つの色分解受光素子ＣＲ，
ＣＧ、 Ｃａｌからなる色分解受光素子群２およびそれ
らからの信号を増幅するアンプ３すなわちＡＲ，ＡＧ、
Ａｌｌから成っており、それぞれの検出系をＲ，Ｇ、
Ｂとする。仮に理想光１０を用〜・たときに受光素子（
Ｊ、 ＣＧ、 Ｃ１１の感度比が３：２：１であれば、
各受光素子Ｃｎ、 ＣＧ、 Ｃ１１の出力比も３：２＝
１となる。第２図の色彩検出装置を使用するとき、前述
の理想光１００検出をＲ：Ｇ：Ｂ＝１：１：１としたけ
れば、アンプ３の増幅率を調整し、 ＡＲ： ＡＧ：Ａ
ｌ＝ ２ ： ３ ： ６の比率にする必要がある。し
かし各検出系のアンプの増幅率が異なることによって温
度変化、ノイズ、電源電圧変動など、アンプ３が受ける
影響がそのまま出力比の変動となり、色彩検出に不具合
を生ずる。The color composition device shown in Fig. 2 includes a light receiving lens element that irradiates detection light onto a group of color-separating light-receiving elements, three color-separating light-receiving elements CR,
A color-separating light-receiving element group 2 consisting of CG and Cal, and an amplifier 3 that amplifies the signals from them, that is, AR, AG,
The detection system consists of R, G,
Let it be B. If ideal light 10 is used, the light receiving element (
If the sensitivity ratio of J, CG, and C11 is 3:2:1,
The output ratio of each light receiving element Cn, CG, C11 is also 3:2=
It becomes 1. When using the color detection device shown in Fig. 2, if you want to detect the ideal light 100 described above so that R:G:B = 1:1:1, adjust the amplification factor of amplifier 3, AR: AG: A
It is necessary to make the ratio l=2:3:6. However, since the amplification factors of the amplifiers in each detection system are different, the effects of temperature changes, noise, power supply voltage fluctuations, etc. on the amplifier 3 directly result in fluctuations in the output ratio, causing problems in color detection.
たとえば周囲温度２５°Ｃで３検出系統Ｒ，Ｇ。For example, at an ambient temperature of 25°C, there are 3 detection systems R and G.
Ｂの出力がＩＶ、ＩＶ、ＩＶであった。とする。アンプ
３の増幅率が七れぞれＡＲ１００倍、 ＡＧｈＯＱ倍。The outputs of B were IV, IV, IV. shall be. The amplification factor of amplifier 3 is 100 times AR and 100 times AGhOQ.
Ａｌｌ １０００倍として、アンプの温度ドリフト特性
が０．０５ｍＶ／’Ｃであったとする。周囲温度が１０
０Ｃ。Assume that the temperature drift characteristic of the amplifier is 0.05 mV/'C, assuming that All is 1000 times larger. ambient temperature is 10
0C.
上昇ｊ６と検出系Ｒ、Ｇ 、Ｂの出カバ１．０５Ｖ 、
１゜２５Ｖ、１．５ＶＫ変化してしまう。このように
温度変化によりて出力比が変動してしまうようでは安定
した色彩検出ができな〜・ため、何らかの補正を加え、
出力比を安定させる必要がある。補正するＫは複雑な技
術を用いなければならず、色彩検出装置の信頼性、コス
ト面で新たな問題を生じる。Rise j6 and detection system R, G, B output cover 1.05V,
It changes by 1°25V, 1.5VK. If the output ratio fluctuates due to temperature changes like this, stable color detection cannot be performed. Therefore, some kind of correction is added.
It is necessary to stabilize the output ratio. Correcting K requires the use of a complicated technique, which creates new problems in terms of reliability and cost of the color detection device.
「目的」
本発明はかかる不具合を解消するもので、感度比が異な
る色分解受光素子に照射する光量を減光フィルター、ス
リットなどを色分解受光素子の前面に配することによっ
て、色分解受光素子群の出力比を任意に決定し、アンプ
の増幅率の比が異なるととくよる様々な影響を除き、安
定した色彩検出を行うことを特徴とする。``Purpose'' The present invention solves such problems, and the amount of light irradiated to color-separating light-receiving elements with different sensitivity ratios can be adjusted by arranging a neutral density filter, slit, etc. in front of the color-separating light-receiving elements. It is characterized by arbitrarily determining the output ratio of the groups, eliminating various effects caused by different amplifier amplification factor ratios, and performing stable color detection.
「実施例」
以下図によってこの発明の一実施例につ〜・て説明する
。"Embodiment" An embodiment of the present invention will be described below with reference to the drawings.
すなわち第１図の色彩検出装置は、検出光を色分解受光
素子群に照射する受光レンズ１、色分解受光素子群２へ
の光量を制限するスリットまたは透過光を制限するフィ
ルター５すなわちＳ！Ｌ’、 Ｓｏ’。That is, the color detection device shown in FIG. 1 includes a light receiving lens 1 that irradiates detection light onto a group of color-separated light-receiving elements, a slit that limits the amount of light to the color-separated light-receiving element group 2, or a filter 5 that limits transmitted light, that is, S! L', So'.
Ｓ飄／、３つの色分解受光素子（Ｊ’、 Ｃ（１／、
ＣＢ’からなる色分解受光素子群２およびそれらからの
信号を増幅するアンプ３すなわちＡＲ’、 ＡＧ’、
ＡＢ’から成っており、それぞれの検出系をＲ／ 、
Ｇ／ 、 Ｂ／とする。仮に理想光１０を用−・たとき
の受光素子ＣＲ’、 ＣＧ’、 （’ｓ／の感度比が３
：２：１であるならば、スリットまたはフィルター５す
なわちＳＲ’、 ＳＯ’、 Ｓｌｌ’によって各受光素
子ＣＢ’、 ＣＧ’、 ＣＢ／に入射する光量を２：３
：６の比率にすれば各受光素子ＣＢ’、 ＣＧ’、 （
’ａ／の出力比は１：１：１となる。したがって３検出
系Ｒ’、Ｇ’、Ｂ’の出力比を１：１：１としたければ
、アンプの増幅率をＡＲ’： ＡＧ’： Ａ！ｌ’＝
１ ： １ ： １とすればよ℃・。S/, three color separation light receiving elements (J', C(1/,
A color separation light receiving element group 2 consisting of CB' and an amplifier 3 that amplifies the signals from them, that is, AR', AG',
AB', and each detection system is R/,
Let G/ and B/. If the ideal light 10 is used, the sensitivity ratio of the light receiving elements CR', CG', ('s/ is 3
:2:1, the amount of light incident on each light receiving element CB', CG', CB/ is reduced to 2:3 by the slit or filter 5, that is, SR', SO', Sll'.
:6 ratio, each light receiving element CB', CG', (
The output ratio of 'a/ is 1:1:1. Therefore, if the output ratio of the three detection systems R', G', and B' is 1:1:1, the amplification factor of the amplifier is AR': AG': A! l'=
If it is 1: 1: 1, then ℃・.
「効果」
この発明は上述のようにそれぞれの受光素子に入光する
検出光の光量を各受光素子の前面にスリットまたは透過
光を制限するフィルターを配して調整し、色分解受光素
子群の出力比を任意に決定するようＫしているので、ア
ンプの増幅率に起因するところの出力比の変動を抑制し
、特別な補正゛ −を加えず、出力値の単純な処理のみ
で色彩検出を行うことができる効果がある。"Effects" As described above, this invention adjusts the amount of detection light that enters each light receiving element by arranging a slit or a filter that restricts transmitted light in front of each light receiving element, and Since the output ratio is determined arbitrarily, fluctuations in the output ratio caused by the amplification factor of the amplifier are suppressed, and color detection is possible by simply processing the output value without adding any special correction. There is an effect that can be done.
第１図はこの発明における色彩検出装置の一実施例を示
す構成図、第２図は従来の色彩検出装置の構成図である
。
１・・・受光レンズ、２・・・色分解受光素子群、３・
・・アンプ、５・・・スリットまたはフィルター、 Ｒ
，Ｇ、Ｂ・・・検出系。
特許 出 願人 山武ハネウェル株式会社図
図
面
第２図
手続補正書（自発）FIG. 1 is a block diagram showing an embodiment of a color detection device according to the present invention, and FIG. 2 is a block diagram of a conventional color detection device. 1... Light receiving lens, 2... Color separation light receiving element group, 3...
...Amplifier, 5...Slit or filter, R
, G, B...detection system. Patent Applicant Yamatake Honeywell Co., Ltd. Drawing Figure 2 Procedural Amendment (Voluntary)
Claims (1)
る色分解受光素子群を有する色彩検出装置において、そ
れぞれの受光素子に入光する検出光の光量を各受光素子
の前面にスリットまたは透過光を制限するフィルターを
配して調整し、色分解受光素子群の出力比を任意に決定
することを特徴とする色彩検出装置。In a color detection device that has a color-separating light receiving element group composed of multiple light receiving elements with different spectral sensitivity characteristics, the amount of detection light that enters each light receiving element is limited by a slit in front of each light receiving element or transmitted light. 1. A color detection device characterized in that an output ratio of a group of color-separating light-receiving elements is arbitrarily determined by arranging and adjusting a filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59203858A JPS6182123A (en) | 1984-09-28 | 1984-09-28 | Color detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59203858A JPS6182123A (en) | 1984-09-28 | 1984-09-28 | Color detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6182123A true JPS6182123A (en) | 1986-04-25 |
Family
ID=16480857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59203858A Pending JPS6182123A (en) | 1984-09-28 | 1984-09-28 | Color detecting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6182123A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62143228U (en) * | 1986-03-04 | 1987-09-09 | ||
| JPH0393766U (en) * | 1990-01-12 | 1991-09-25 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51145384A (en) * | 1975-06-10 | 1976-12-14 | Toshiba Corp | Color tone detector |
| JPS57165724A (en) * | 1981-04-03 | 1982-10-12 | Omron Tateisi Electronics Co | Color discriminating element |
| JPS60125528A (en) * | 1983-12-09 | 1985-07-04 | Canon Inc | Reader |
-
1984
- 1984-09-28 JP JP59203858A patent/JPS6182123A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51145384A (en) * | 1975-06-10 | 1976-12-14 | Toshiba Corp | Color tone detector |
| JPS57165724A (en) * | 1981-04-03 | 1982-10-12 | Omron Tateisi Electronics Co | Color discriminating element |
| JPS60125528A (en) * | 1983-12-09 | 1985-07-04 | Canon Inc | Reader |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62143228U (en) * | 1986-03-04 | 1987-09-09 | ||
| JPH0635236Y2 (en) * | 1986-03-04 | 1994-09-14 | ノーリツ鋼機株式会社 | Gain adjusting device for color component measuring device of negative film |
| JPH0393766U (en) * | 1990-01-12 | 1991-09-25 |
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