FR688280A - Lentille à trois puissances - Google Patents

Lentille à trois puissances

Info

Publication number
FR688280A
FR688280A FR688280DA FR688280A FR 688280 A FR688280 A FR 688280A FR 688280D A FR688280D A FR 688280DA FR 688280 A FR688280 A FR 688280A
Authority
FR
France
Prior art keywords
power lens
lens
power
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
Other languages
English (en)
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.)
COMM OUVRIERS LUNETIERS SOC IN
PETHE EPARVIER
Original Assignee
COMM OUVRIERS LUNETIERS SOC IN
PETHE EPARVIER
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 COMM OUVRIERS LUNETIERS SOC IN, PETHE EPARVIER filed Critical COMM OUVRIERS LUNETIERS SOC IN
Application granted granted Critical
Publication of FR688280A publication Critical patent/FR688280A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G02C7/06—Lenses; Lens systems ; Methods of designing lenses bifocal; multifocal ; progressive

Landscapes

  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR688280D 1930-01-15 1930-01-15 Lentille à trois puissances Expired FR688280A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR688280T 1930-01-15

Publications (1)

Publication Number Publication Date
FR688280A true FR688280A (fr) 1930-08-21

Family

ID=9026644

Family Applications (1)

Application Number Title Priority Date Filing Date
FR688280D Expired FR688280A (fr) 1930-01-15 1930-01-15 Lentille à trois puissances

Country Status (1)

Country Link
FR (1) FR688280A (fr)

Similar Documents

Publication Publication Date Title
FR707689A (fr) étui à fards
FR714826A (fr) Objectif de projection
FR704740A (fr) Charnière à rotule
FR688874A (fr) Carburateur à gazéification préalable
FR700334A (fr) Obturateur photographique
FR688280A (fr) Lentille à trois puissances
FR689540A (fr) Pantoufle perfectionnée à élastique
FR38713E (fr) Plansichters à percussicn
FR692288A (fr) étui à lunettes
FR712579A (fr) Joints à rotule
FR696145A (fr) Passoire à tamis interchangeables
FR707759A (fr) Cinématoscope à vision directe
FR725503A (fr) équerre à dessiner
FR706347A (fr) Objectif de projection
FR715336A (fr) Altitélémètre à diasporamètre
FR709027A (fr) Perfectionnements apportés à la projection de la lumière
FR717297A (fr) Speculum
FR696639A (fr) Diplory à nivelette
FR701863A (fr) Condenseur à surface
FR706128A (fr) Phonogramme
FR722963A (fr) Transformateur à gradins
FR720882A (fr) Interrupteur à lumière
FR706266A (fr) Règle à calculs
FR717176A (fr) Objectif photographique à trois lentilles
FR719985A (fr) Objectif photographique en trois parties