JPS6429179A - Image projection device - Google Patents

Image projection device

Info

Publication number
JPS6429179A
JPS6429179A JP18624387A JP18624387A JPS6429179A JP S6429179 A JPS6429179 A JP S6429179A JP 18624387 A JP18624387 A JP 18624387A JP 18624387 A JP18624387 A JP 18624387A JP S6429179 A JPS6429179 A JP S6429179A
Authority
JP
Japan
Prior art keywords
liquid
injected
room
injection holes
expanded
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
Application number
JP18624387A
Other languages
Japanese (ja)
Other versions
JP2600696B2 (en
Inventor
Takashi Kashiwabara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP18624387A priority Critical patent/JP2600696B2/en
Publication of JPS6429179A publication Critical patent/JPS6429179A/en
Application granted granted Critical
Publication of JP2600696B2 publication Critical patent/JP2600696B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE:To restrain the rise of internal pressure to be low without providing a comlicated pressure adjustment mechanism even when internal OC liquid is thermal-expanded and the volume of it is expanded by providing an air area in an optical coupling room. CONSTITUTION:When the OC liquid 50 is injected to the OC room, a liquid surface 51 gradually rises and reaches the aperture of the lower part of injection holes 26 and 27 by and by. Besides, when the OC liquid is tried to be injected, it overflows from the injection holes 26 and 27 and it cannot be injected more. Therefore, the OC liquid surface 51 stops at the aperture position of the lower part of the injection holes 26 and 27 and the upper part of it, an air occupancy part 30 is certainly ensured. By ensuring the proper air occupancy part in the OC room without the complicated relaxing mechanism of the inner pressure, the thermal expansion of the OC liquid can be absorbed and the rise of the internal pressure can be restrained to be low.
JP18624387A 1987-07-24 1987-07-24 Image projection device Expired - Fee Related JP2600696B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18624387A JP2600696B2 (en) 1987-07-24 1987-07-24 Image projection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18624387A JP2600696B2 (en) 1987-07-24 1987-07-24 Image projection device

Publications (2)

Publication Number Publication Date
JPS6429179A true JPS6429179A (en) 1989-01-31
JP2600696B2 JP2600696B2 (en) 1997-04-16

Family

ID=16184855

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18624387A Expired - Fee Related JP2600696B2 (en) 1987-07-24 1987-07-24 Image projection device

Country Status (1)

Country Link
JP (1) JP2600696B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6732781B2 (en) 2000-02-25 2004-05-11 Societe Bic Hand-held device for transferring a film onto a substrate with a concealable application member
DE4408753B4 (en) * 1993-03-16 2004-12-09 Matsushita Electric Industrial Co., Ltd., Kadoma Projection lens unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4408753B4 (en) * 1993-03-16 2004-12-09 Matsushita Electric Industrial Co., Ltd., Kadoma Projection lens unit
US6732781B2 (en) 2000-02-25 2004-05-11 Societe Bic Hand-held device for transferring a film onto a substrate with a concealable application member

Also Published As

Publication number Publication date
JP2600696B2 (en) 1997-04-16

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees