JPS6035232U - Laser power diagnostic equipment - Google Patents
Laser power diagnostic equipmentInfo
- Publication number
- JPS6035232U JPS6035232U JP12750883U JP12750883U JPS6035232U JP S6035232 U JPS6035232 U JP S6035232U JP 12750883 U JP12750883 U JP 12750883U JP 12750883 U JP12750883 U JP 12750883U JP S6035232 U JPS6035232 U JP S6035232U
- Authority
- JP
- Japan
- Prior art keywords
- laser
- output
- order light
- laser power
- optical
- 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
- Dot-Matrix Printers And Others (AREA)
- Laser Beam Printer (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Mechanical Optical Scanning Systems (AREA)
- Fax Reproducing Arrangements (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来のレーザパワー診断装置を実装してなるレ
ーザ走査光学系の一般的構成図、第２図ａおよびｂは本
考案の一実施例を示すレーザパワー診断装置の概略構成
を示すブロック図および該装置における制御動作を説明
するために示した各信号の簡略的タイムチャート、第３
図はこのレーザパワー診断装置を実装してなるレーザ走
査光学系の構成を示す略図である。
１・・・レーザ発振器、２・・・光変調器、３・・・ミ
ラー、４・・・回転多面走査鏡、５・・・感光体ドラム
、８・・・レーザパワー診断装置、８０・・・光センサ
、８１・・・レーザ出力検出回路、８２・・・異常表示
灯。FIG. 1 is a general configuration diagram of a laser scanning optical system equipped with a conventional laser power diagnostic device, and FIGS. 2 a and b are block diagrams showing a schematic configuration of a laser power diagnostic device according to an embodiment of the present invention. Figure 3 and a simplified time chart of each signal shown to explain the control operation in the device.
The figure is a schematic diagram showing the configuration of a laser scanning optical system in which this laser power diagnostic device is mounted. DESCRIPTION OF SYMBOLS 1... Laser oscillator, 2... Optical modulator, 3... Mirror, 4... Rotating polygon scanning mirror, 5... Photosensitive drum, 8... Laser power diagnostic device, 80... - Optical sensor, 81... Laser output detection circuit, 82... Abnormality indicator light.
Claims (1)
り変調しそれぞれ偏向角の異なる０次光および１次光と
して出力する光変調器を具えたレーザ走査光学系におけ
るレーザパワー診断装置において、前記光変調器の変調
によって出力される０次光の通過光路に配設した光セン
サと、該光センサによって得られる前記０次光の受光出
力と予め設定される基準値とを比較し、前記受光出力が
前記基準値より小さくなる期間が一定時間続いた時に異
常検出出力を出力するレーザ出力検出回路とを具えたこ
とを特徴とするレーザパワー診断装置。In a laser power diagnostic device for a laser scanning optical system, which includes an optical modulator that modulates a laser beam emitted from a laser oscillator according to specific image information and outputs it as zero-order light and first-order light with different deflection angles, the optical modulation An optical sensor disposed on the optical path through which the 0th-order light outputted by modulation of the device compares the received light output of the 0th-order light obtained by the optical sensor with a preset reference value, and determines whether the received light output is A laser power diagnostic device comprising: a laser output detection circuit that outputs an abnormality detection output when the period in which the output is smaller than the reference value continues for a certain period of time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12750883U JPS6035232U (en) | 1983-08-18 | 1983-08-18 | Laser power diagnostic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12750883U JPS6035232U (en) | 1983-08-18 | 1983-08-18 | Laser power diagnostic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6035232U true JPS6035232U (en) | 1985-03-11 |
Family
ID=30289572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12750883U Pending JPS6035232U (en) | 1983-08-18 | 1983-08-18 | Laser power diagnostic equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6035232U (en) |
-
1983
- 1983-08-18 JP JP12750883U patent/JPS6035232U/en active Pending
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