GB255235A - Improvements in and relating to illuminating devices for simulating daylight - Google Patents

Improvements in and relating to illuminating devices for simulating daylight

Info

Publication number
GB255235A
GB255235A GB1899125A GB1899125A GB255235A GB 255235 A GB255235 A GB 255235A GB 1899125 A GB1899125 A GB 1899125A GB 1899125 A GB1899125 A GB 1899125A GB 255235 A GB255235 A GB 255235A
Authority
GB
United Kingdom
Prior art keywords
relating
illuminating devices
simulating daylight
daylight
simulating
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.)
Expired
Application number
GB1899125A
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.)
ARTHUR REGINALD ST CLAIR
Original Assignee
ARTHUR REGINALD ST CLAIR
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 ARTHUR REGINALD ST CLAIR filed Critical ARTHUR REGINALD ST CLAIR
Priority to GB1899125A priority Critical patent/GB255235A/en
Publication of GB255235A publication Critical patent/GB255235A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/02—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for simulating daylight

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Glass Compositions (AREA)

Abstract

255,235. St. Clair, A. R. July 25, 1925. Addition to 234,530. Colour filters.-The light filter described in the parent Specification has the red component between 0.05 and 0.50 according to Lovibond's Tintometer. For colour matching a tint having the following analysis, viz. :-Blue 4.10., red 0.20 is used, and for certain colours, e.g. green, a small proportion of yellow is advantageous, which may be between 0.05 and 0.10.
GB1899125A 1925-07-25 1925-07-25 Improvements in and relating to illuminating devices for simulating daylight Expired GB255235A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1899125A GB255235A (en) 1925-07-25 1925-07-25 Improvements in and relating to illuminating devices for simulating daylight

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1899125A GB255235A (en) 1925-07-25 1925-07-25 Improvements in and relating to illuminating devices for simulating daylight

Publications (1)

Publication Number Publication Date
GB255235A true GB255235A (en) 1926-07-22

Family

ID=10121906

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1899125A Expired GB255235A (en) 1925-07-25 1925-07-25 Improvements in and relating to illuminating devices for simulating daylight

Country Status (1)

Country Link
GB (1) GB255235A (en)

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