JPS56142463A - Ball speed and strike zone detecting device - Google Patents
Ball speed and strike zone detecting deviceInfo
- Publication number
- JPS56142463A JPS56142463A JP4594880A JP4594880A JPS56142463A JP S56142463 A JPS56142463 A JP S56142463A JP 4594880 A JP4594880 A JP 4594880A JP 4594880 A JP4594880 A JP 4594880A JP S56142463 A JPS56142463 A JP S56142463A
- Authority
- JP
- Japan
- Prior art keywords
- ball
- strike zone
- mirror
- reticle
- polarity
- 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
- 230000003287 optical effect Effects 0.000 abstract 2
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/64—Devices characterised by the determination of the time taken to traverse a fixed distance
- G01P3/68—Devices characterised by the determination of the time taken to traverse a fixed distance using optical means, i.e. using infrared, visible, or ultraviolet light
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4594880A JPS6022297B2 (ja) | 1980-04-08 | 1980-04-08 | ボ−ルの速度及びストライク・ゾ−ンの検出装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4594880A JPS6022297B2 (ja) | 1980-04-08 | 1980-04-08 | ボ−ルの速度及びストライク・ゾ−ンの検出装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56142463A true JPS56142463A (en) | 1981-11-06 |
JPS6022297B2 JPS6022297B2 (ja) | 1985-06-01 |
Family
ID=12733493
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4594880A Expired JPS6022297B2 (ja) | 1980-04-08 | 1980-04-08 | ボ−ルの速度及びストライク・ゾ−ンの検出装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6022297B2 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6272095U (ja) * | 1985-10-25 | 1987-05-08 | ||
JPS6316549U (ja) * | 1986-07-16 | 1988-02-03 |
-
1980
- 1980-04-08 JP JP4594880A patent/JPS6022297B2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6022297B2 (ja) | 1985-06-01 |
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