JPH01117054U - - Google Patents
Info
- Publication number
- JPH01117054U JPH01117054U JP1257888U JP1257888U JPH01117054U JP H01117054 U JPH01117054 U JP H01117054U JP 1257888 U JP1257888 U JP 1257888U JP 1257888 U JP1257888 U JP 1257888U JP H01117054 U JPH01117054 U JP H01117054U
- Authority
- JP
- Japan
- Prior art keywords
- scanning
- image
- brightness
- contrast
- quality adjustment
- 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
Description
第１図は本案の一実施例を示す走査電子顕微鏡
等の自動画質調整装置のブロツク図、第２図は表
示試料像と画質調整時の走査範囲の説明図、第３
図は走査範囲を制限した場合の偏向鋸歯状波およ
び輝度変調パルスの説明図である。
１……鋸歯状波発生回路、２……振幅調整器、
３……直流加算器、４，５……調整器、２１……
検出器、２２……映像増幅器、２３……輝度、コ
ントラスト調整回路、２６……画質自動調整命令
部、３１……表示画面、３３……画質調整目標部
分、４１……鋸歯状波原波形、４２……走査範囲
設定後の鋸歯状波、４５……輝度変調パルス。
Fig. 1 is a block diagram of an automatic quality adjustment device such as a scanning electron microscope showing an embodiment of the present invention, Fig. 2 is an explanatory diagram of the displayed sample image and the scanning range during image quality adjustment, and Fig. 3
The figure is an explanatory diagram of a polarized sawtooth wave and a brightness modulation pulse when the scanning range is limited. 1... Sawtooth wave generation circuit, 2... Amplitude adjuster,
3...DC adder, 4, 5...Adjuster, 21...
Detector, 22... Video amplifier, 23... Brightness and contrast adjustment circuit, 26... Image quality automatic adjustment command section, 31... Display screen, 33... Image quality adjustment target portion, 41... Sawtooth waveform, 42...Sawtooth wave after scanning range setting, 45...Brightness modulation pulse.
Claims (1)
得られた二次電子等の信号を、検出し映像増幅し
てビームの走査と同期した偏向をうけているブラ
ウン管等の表示素子に入力し像を得る装置であつ
て、走査時の映像信号の平均直流レベル最大値及
び最小値を検出しその信号により表示像の輝度及
びコントラストを自動調整する機構を持つ装置に
おいて、表示像の輝度及びコントラストを自動調
整する際は、ビームの走査範囲を表示像上のそれ
ぞれ任意に可変可能な位置、範囲に限定し、その
指定範囲のみを走査して得られる映像信号より表
示像の輝度及びコントラストを自動調整する機構
を備えたことを特徴とする走査形電子顕微鏡等の
像画質調整装置。 ２ 実用新案登録請求の範囲第１項において、像
画質調整時および観察時の両方またはいずれか一
方の表示像上に、像の輝度およびコントラストを
自動調整する際のビームの走査範囲を、表示像の
当該走査範囲に対応する部分の輝度を変え、また
は当該走査範囲を囲む最小の大きさの枠を表示像
上に表示する等の手段を用いて明示する機構を備
えたことを特徴とする走査形電子顕微鏡等の像画
質調整装置。[Claims for Utility Model Registration] 1. A cathode ray tube, etc. that detects signals such as secondary electrons obtained by scanning an electron beam, etc. over a sample, amplifies the image, and undergoes deflection in synchronization with the scanning of the beam. In a device that obtains an image by inputting it to a display element, the device has a mechanism that detects the maximum and minimum values of the average DC level of the video signal during scanning and automatically adjusts the brightness and contrast of the displayed image based on the signals, When automatically adjusting the brightness and contrast of the display image, limit the scanning range of the beam to arbitrarily variable positions and ranges on the display image, and use the video signal obtained by scanning only the specified range to adjust the display image. An image quality adjustment device for a scanning electron microscope, etc., characterized by having a mechanism for automatically adjusting the brightness and contrast of a scanning electron microscope. 2 In the scope of claims for utility model registration, paragraph 1, it is stated that the scanning range of the beam when automatically adjusting the brightness and contrast of the image is specified on the displayed image during image quality adjustment and/or observation. Scanning characterized by having a mechanism for making it clear by changing the brightness of the part corresponding to the scanning range, or displaying a frame of the minimum size surrounding the scanning range on the display image, etc. Image quality adjustment device for electronic microscopes, etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1257888U JPH01117054U (en) | 1988-02-03 | 1988-02-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1257888U JPH01117054U (en) | 1988-02-03 | 1988-02-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01117054U true JPH01117054U (en) | 1989-08-08 |
Family
ID=31222139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1257888U Pending JPH01117054U (en) | 1988-02-03 | 1988-02-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01117054U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002367554A (en) * | 2001-06-08 | 2002-12-20 | Seiko Instruments Inc | Scanning microscope with function of adjusting proper brightness |
-
1988
- 1988-02-03 JP JP1257888U patent/JPH01117054U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002367554A (en) * | 2001-06-08 | 2002-12-20 | Seiko Instruments Inc | Scanning microscope with function of adjusting proper brightness |
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