GB573601A - Improvements in optical projection apparatus - Google Patents

Improvements in optical projection apparatus

Info

Publication number
GB573601A
GB573601A GB1370943A GB1370943A GB573601A GB 573601 A GB573601 A GB 573601A GB 1370943 A GB1370943 A GB 1370943A GB 1370943 A GB1370943 A GB 1370943A GB 573601 A GB573601 A GB 573601A
Authority
GB
United Kingdom
Prior art keywords
silvered
image
mirror
model
modification
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
GB1370943A
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
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 Individual filed Critical Individual
Priority to GB1370943A priority Critical patent/GB573601A/en
Publication of GB573601A publication Critical patent/GB573601A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/02—Viewing or reading apparatus
    • G02B27/06—Viewing or reading apparatus with moving picture effect

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Projection Apparatus (AREA)

Abstract

573,601. Optical-projection apparatus. MILES, G. H. Aug. 23, 1943, No. 13709. [Class 97 (i)] [Also in Group XXXIII] The viewing system of an apparatus as described in Specification 431,049 for simulating travel on the surface of or above the level of the ground is modified in various ways. As shown in Fig. 1, the image of a source of light is brought to a focus by a lens 1 on to a mirror 2 situated at or near the surface of a model land scape to form the image on a screen 3. Two mirrors situated close together may be used, the rays from each being differently coloured, polarized, or projected alternately for stereoscopic viewing by known means. In a modification, Fig. 3, a system of mirrors and lenses 4, 5, 6, 7, 9 is used to obtain a view of the model scene such as would be obtained by a person on the same scale as the model. In a further modification, Fig. 5 (not shown), the stereoscopic effect may be enhanced by interposing a wedge, silvered on one side and half silvered on the other, before the lens 9. In another modification, Fig..6 (not shown), a mirror silvered on one side and half silvered on the other reflects two images on to a spherical mirror, the image in which is viewed directly.
GB1370943A 1943-08-23 1943-08-23 Improvements in optical projection apparatus Expired GB573601A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1370943A GB573601A (en) 1943-08-23 1943-08-23 Improvements in optical projection apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1370943A GB573601A (en) 1943-08-23 1943-08-23 Improvements in optical projection apparatus

Publications (1)

Publication Number Publication Date
GB573601A true GB573601A (en) 1945-11-28

Family

ID=10027951

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1370943A Expired GB573601A (en) 1943-08-23 1943-08-23 Improvements in optical projection apparatus

Country Status (1)

Country Link
GB (1) GB573601A (en)

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