CA228920A - Glare preventing device for projector lamps - Google Patents

Glare preventing device for projector lamps

Info

Publication number
CA228920A
CA228920A CA228920A CA228920DA CA228920A CA 228920 A CA228920 A CA 228920A CA 228920 A CA228920 A CA 228920A CA 228920D A CA228920D A CA 228920DA CA 228920 A CA228920 A CA 228920A
Authority
CA
Canada
Prior art keywords
preventing device
projector lamps
glare preventing
glare
projector
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
CA228920A
Other languages
French (fr)
Inventor
Ernest Ross Herbert
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.)
Individual
Original Assignee
Individual
Publication date
Application granted granted Critical
Publication of CA228920A publication Critical patent/CA228920A/en
Expired legal-status Critical Current

Links

CA228920A Glare preventing device for projector lamps Expired CA228920A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA228920T

Publications (1)

Publication Number Publication Date
CA228920A true CA228920A (en) 1923-02-20

Family

ID=35126293

Family Applications (1)

Application Number Title Priority Date Filing Date
CA228920A Expired CA228920A (en) Glare preventing device for projector lamps

Country Status (1)

Country Link
CA (1) CA228920A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020030302A1 (en) * 2018-08-10 2020-02-13 Eaton Intelligent Power Limited Integrated louvres for beam control in an led lighting device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020030302A1 (en) * 2018-08-10 2020-02-13 Eaton Intelligent Power Limited Integrated louvres for beam control in an led lighting device
US11408592B2 (en) 2018-08-10 2022-08-09 Signify Holding B.V. Integrated louvres for beam control in an LED lighting device

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