US57602A - Improvement in fluid lenses - Google Patents

Improvement in fluid lenses Download PDF

Info

Publication number
US57602A
US57602A US57602DA US57602A US 57602 A US57602 A US 57602A US 57602D A US57602D A US 57602DA US 57602 A US57602 A US 57602A
Authority
US
United States
Prior art keywords
improvement
fluid lenses
lenses
fluid
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 - Lifetime
Application number
Publication date
Application granted granted Critical
Publication of US57602A publication Critical patent/US57602A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/14—Adjustable mountings
    • F21V21/30—Pivoted housings or frames
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/12—Fluid-filled or evacuated lenses
    • G02B3/14—Fluid-filled or evacuated lenses of variable focal length
US57602D Improvement in fluid lenses Expired - Lifetime US57602A (en)

Publications (1)

Publication Number Publication Date
US57602A true US57602A (en) 1866-08-28

Family

ID=2127141

Family Applications (1)

Application Number Title Priority Date Filing Date
US57602D Expired - Lifetime US57602A (en) Improvement in fluid lenses

Country Status (1)

Country Link
US (1) US57602A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2525921A (en) * 1947-11-19 1950-10-17 Emeloid Co Inc Plastic lens
US2868992A (en) * 1945-02-12 1959-01-13 George S Monk Reactor viewing apparatus
US6350042B1 (en) * 2000-12-11 2002-02-26 Wei Cheng Lai Projecting lamp
US11041596B1 (en) * 2021-01-14 2021-06-22 Yingping Zhang Music arctic starry sky lamp

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2868992A (en) * 1945-02-12 1959-01-13 George S Monk Reactor viewing apparatus
US2525921A (en) * 1947-11-19 1950-10-17 Emeloid Co Inc Plastic lens
US6350042B1 (en) * 2000-12-11 2002-02-26 Wei Cheng Lai Projecting lamp
US11041596B1 (en) * 2021-01-14 2021-06-22 Yingping Zhang Music arctic starry sky lamp

Similar Documents

Publication Publication Date Title
US57602A (en) Improvement in fluid lenses
US52761A (en) Improvement in telegraph-insulators
US57456A (en) Peters
GB186601623A (en)
US53086A (en)
US60224A (en) mobsill
USD2459S (en)
USD2465S (en)
US52706A (en) Improvement in grain-h ullers
US59066A (en) Improvement in oil-cans
USD2289S (en) C zzsj
USD2458S (en)
USD2328S (en)
USD2317S (en)
USD2278S (en)
USD2313S (en)
US56372A (en) H-peters
USD2279S (en)
USD2294S (en)
USD2297S (en)
USD2303S (en)
USD2304S (en)
USD2505S (en)
USD2504S (en)
USD2323S (en)