JPS6413123A - Projecting device for auto focus - Google Patents

Projecting device for auto focus

Info

Publication number
JPS6413123A
JPS6413123A JP16844087A JP16844087A JPS6413123A JP S6413123 A JPS6413123 A JP S6413123A JP 16844087 A JP16844087 A JP 16844087A JP 16844087 A JP16844087 A JP 16844087A JP S6413123 A JPS6413123 A JP S6413123A
Authority
JP
Japan
Prior art keywords
light
projected
projection
tungsten lamp
light emission
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
JP16844087A
Other languages
Japanese (ja)
Other versions
JPH0727111B2 (en
Inventor
Kazumasa Tamada
Tsuneo Yokoyama
Satoshi Mikajiri
Koji Yanagi
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.)
Fujinon Corp
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film Co Ltd
Fuji Photo Optical 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 Fuji Photo Film Co Ltd, Fuji Photo Optical Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP62168440A priority Critical patent/JPH0727111B2/en
Publication of JPS6413123A publication Critical patent/JPS6413123A/en
Publication of JPH0727111B2 publication Critical patent/JPH0727111B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)

Abstract

PURPOSE:To effectively utilize a light emission as a projection light at a low cost by using the light emission itself of a longitudinal tungsten lamp being a light source, as a projection pattern. CONSTITUTION:A tungsten lamp 12 is formed by providing a tungsten filament 12B in the longitudinal direction in a thin pipe 12A, constituted in a longitudinal shape as a whole, and a light beam emitted from the tungsten lamp 12 is projected with an expanse of a prescribed projection light angle alpha through a projection lens 14 and a filter 16. That is, said light is projected so as to irradiate an object to be photographed, in a focus detectable range L on an optical axis of a photographic lens 20 of a camera. In such a way, as for the projected light, the light emission itself of the tungsten lamp 12 is projected onto the surface of the object to be photographed, as a projection pattern 18. In such a way, the light beam can be utilized effectively at a low cost.
JP62168440A 1987-07-06 1987-07-06 Projector for auto focus of camera Expired - Fee Related JPH0727111B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62168440A JPH0727111B2 (en) 1987-07-06 1987-07-06 Projector for auto focus of camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62168440A JPH0727111B2 (en) 1987-07-06 1987-07-06 Projector for auto focus of camera

Publications (2)

Publication Number Publication Date
JPS6413123A true JPS6413123A (en) 1989-01-18
JPH0727111B2 JPH0727111B2 (en) 1995-03-29

Family

ID=15868156

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62168440A Expired - Fee Related JPH0727111B2 (en) 1987-07-06 1987-07-06 Projector for auto focus of camera

Country Status (1)

Country Link
JP (1) JPH0727111B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5374343A (en) * 1992-05-15 1994-12-20 Anelva Corporation Magnetron cathode assembly

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62257010A (en) * 1986-04-30 1987-11-09 Toshiba Corp Detection of height

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62257010A (en) * 1986-04-30 1987-11-09 Toshiba Corp Detection of height

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5374343A (en) * 1992-05-15 1994-12-20 Anelva Corporation Magnetron cathode assembly

Also Published As

Publication number Publication date
JPH0727111B2 (en) 1995-03-29

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Legal Events

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