JPH0358084U - - Google Patents
Info
- Publication number
- JPH0358084U JPH0358084U JP11848689U JP11848689U JPH0358084U JP H0358084 U JPH0358084 U JP H0358084U JP 11848689 U JP11848689 U JP 11848689U JP 11848689 U JP11848689 U JP 11848689U JP H0358084 U JPH0358084 U JP H0358084U
- Authority
- JP
- Japan
- Prior art keywords
- ray tube
- cathode ray
- electron gun
- neck portion
- attached
- 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
- 230000005291 magnetic effect Effects 0.000 claims description 4
- 230000005294 ferromagnetic effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Video Image Reproduction Devices For Color Tv Systems (AREA)
Description
第１図は本考案の実施例を示す部分断面を含む
側面図、第２図は第１図の陰極線管のバルブネツ
ク部内での磁界強度分布図である。第３図は従来
の電磁集束型陰極線管の部分断面を含む側面図、
第４図は第３図の陰極線管におけるバルブネツク
部内での磁界強度分布図である。
１……電子銃、２……バルブネツク部、３……
フオーカスマグネツト、７，８……磁界シールド
部材。
FIG. 1 is a side view including a partial cross section showing an embodiment of the present invention, and FIG. 2 is a magnetic field strength distribution diagram within the valve neck of the cathode ray tube shown in FIG. Figure 3 is a side view including a partial cross section of a conventional electromagnetic focusing cathode ray tube;
FIG. 4 is a magnetic field strength distribution diagram within the valve neck portion of the cathode ray tube of FIG. 3. FIG. 1...electron gun, 2...valve neck section, 3...
Focus magnet, 7, 8...Magnetic field shielding member.
Claims (1)
ネツトが装着されるバルブネツク部を備えた陰極
線管において、前記ネツク部は前記フオーカスマ
グネツトより電子銃側に強磁性体の磁界シールド
部材を装着することを特徴とする電磁集束型陰極
線管。 In a cathode ray tube that houses an electron gun inside and includes a valve neck portion on the outer periphery of which a focus magnet is attached, a ferromagnetic magnetic field shielding member is attached to the neck portion closer to the electron gun than the focus magnet. An electromagnetic focusing cathode ray tube featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11848689U JPH0358084U (en) | 1989-10-09 | 1989-10-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11848689U JPH0358084U (en) | 1989-10-09 | 1989-10-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0358084U true JPH0358084U (en) | 1991-06-05 |
Family
ID=31666650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11848689U Pending JPH0358084U (en) | 1989-10-09 | 1989-10-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0358084U (en) |
-
1989
- 1989-10-09 JP JP11848689U patent/JPH0358084U/ja active Pending