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JPS54100174A - Reflection plate for lighting apparatus - Google Patents

Reflection plate for lighting apparatus

Info

Publication number
JPS54100174A
JPS54100174A JP753378A JP753378A JPS54100174A JP S54100174 A JPS54100174 A JP S54100174A JP 753378 A JP753378 A JP 753378A JP 753378 A JP753378 A JP 753378A JP S54100174 A JPS54100174 A JP S54100174A
Authority
JP
Japan
Prior art keywords
reflection plate
lighting apparatus
plate
parabolic
axis
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
JP753378A
Other languages
Japanese (ja)
Other versions
JPS5942403B2 (en
Inventor
Toshihiko Sakaguchi
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 Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP53007533A priority Critical patent/JPS5942403B2/en
Publication of JPS54100174A publication Critical patent/JPS54100174A/en
Publication of JPS5942403B2 publication Critical patent/JPS5942403B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Lenses (AREA)
  • Light Sources And Details Of Projection-Printing Devices (AREA)

Abstract

PURPOSE: To provide a reflection plate for lighting apparatus, which is provided with a curvature along the length of the same, so as to reflect light to places remote from the lighting apparatus and thus to prevent the brightness is high only at the front of the apparatus, whereby it is enabled to make the brightness uniformly in every direction.
CONSTITUTION: Reflection plate 1 for lamp 2 is made in the form of a saddle. It is assumed here that X-axis is taken along the length of reflection plate 1. And, the reflection plate 1 is shaped such that, when the reflection plate 1 is cut by a plane perpendicular to the X-axis, the section provide a parabolic form, whereas, when the plate 1 is cut by a plane including the X-axis, curvature of the plate 1 provides a parabolic form. With such an arrangment, light emitted from lamp 2 is reflected off the parabolic surface of reflection plate 1 so that it is enabled to reflect light in a wide range. In the above arrangment, it is also possible to compose the curvature of reflection plate 1 by a plurality of parabolic planes.
COPYRIGHT: (C)1979,JPO&Japio
JP53007533A 1978-01-25 1978-01-25 Lighting equipment reflector Expired JPS5942403B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53007533A JPS5942403B2 (en) 1978-01-25 1978-01-25 Lighting equipment reflector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53007533A JPS5942403B2 (en) 1978-01-25 1978-01-25 Lighting equipment reflector

Publications (2)

Publication Number Publication Date
JPS54100174A true JPS54100174A (en) 1979-08-07
JPS5942403B2 JPS5942403B2 (en) 1984-10-15

Family

ID=11668416

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53007533A Expired JPS5942403B2 (en) 1978-01-25 1978-01-25 Lighting equipment reflector

Country Status (1)

Country Link
JP (1) JPS5942403B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4355350A (en) * 1980-09-02 1982-10-19 Polaroid Corporation Reflector for use in an artificial lighting device
US4356538A (en) * 1980-08-04 1982-10-26 Polaroid Corporation Photographic lighting apparatus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4941312U (en) * 1972-07-14 1974-04-11
JPS50130286A (en) * 1974-03-30 1975-10-15

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4941312U (en) * 1972-07-14 1974-04-11
JPS50130286A (en) * 1974-03-30 1975-10-15

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4356538A (en) * 1980-08-04 1982-10-26 Polaroid Corporation Photographic lighting apparatus
US4355350A (en) * 1980-09-02 1982-10-19 Polaroid Corporation Reflector for use in an artificial lighting device

Also Published As

Publication number Publication date
JPS5942403B2 (en) 1984-10-15

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