GB2222280A - Electronic calculator with lens - Google Patents

Electronic calculator with lens Download PDF

Info

Publication number
GB2222280A
GB2222280A GB8818270A GB8818270A GB2222280A GB 2222280 A GB2222280 A GB 2222280A GB 8818270 A GB8818270 A GB 8818270A GB 8818270 A GB8818270 A GB 8818270A GB 2222280 A GB2222280 A GB 2222280A
Authority
GB
United Kingdom
Prior art keywords
calculator
electronic calculator
lens portion
lens
magnifying
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.)
Withdrawn
Application number
GB8818270A
Other versions
GB8818270D0 (en
Inventor
Wai-Kwan Ho
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.)
Leona Electronics Co Ltd
Original Assignee
Leona Electronics Co Ltd
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 Leona Electronics Co Ltd filed Critical Leona Electronics Co Ltd
Priority to GB8818270A priority Critical patent/GB2222280A/en
Publication of GB8818270D0 publication Critical patent/GB8818270D0/en
Publication of GB2222280A publication Critical patent/GB2222280A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/04—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the shape
    • G06K19/041—Constructional details
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B25/00—Eyepieces; Magnifying glasses
    • G02B25/02—Eyepieces; Magnifying glasses with means for illuminating object viewed
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F15/00—Digital computers in general; Data processing equipment in general
    • G06F15/02—Digital computers in general; Data processing equipment in general manually operated with input through keyboard and computation using a built-in program, e.g. pocket calculators
    • G06F15/0208—Digital computers in general; Data processing equipment in general manually operated with input through keyboard and computation using a built-in program, e.g. pocket calculators for combination with other devices having a different main function, e.g. watches, pens

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computing Systems (AREA)
  • Computer Hardware Design (AREA)
  • General Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)

Abstract

An electronic calculator 1 has a generally planar front surface and includes a lens portion 8 to act as a magnifying glass. The lens portion may include a Fresnel lens or a convex lens extending out of the front surface. It is preferred that the lens portion be an integral part of a body 2 of the calculator. Preferably, the body and lens portion are moulded from a transparent plastics material in the same moulding operation. Solar cells 6 and a liquid crystal display 5 are provided. <IMAGE>

Description

ELLCTR:)!#1C CALCULATOR This invention relates to an electronic calculator, more particularly to an electronic calculator incorporating a magnifying glass.
According to the present invention there is provided an electronic calculator having a generally planar front surface and including a lens portion to act as a magnifying glass, the lens portion extending out of the generally planar front surface of the calculator.
Although it is envisaged that the lens portion constituting the magnifying glass can be inserted as a separate element into an aperture in the electronic calculator of the present invention, it is preferred that the lens portion constituting the magnifying glass be an integral part of the body of the calculator. Preferably, the body of the calculator is moulded from a transparent plastics material, in which case the magnifying lens portion can be formed in the body in the same moulding operation.
Preferably, the electronic calculator is provided with a generally planar back surface and the focal length of the magnifying lens is such that when the calculator is placed directly onto an object, a magnified image of the object can be seen through the magnifying lens.
In a preferred embodiment an electronic calculator according to the present invention is provided with a transparent plastics body in which there is incorporated a magnifying glass, a printed circuit board and a micro-processor being incorporated into a separate sheet affixed to a front surface of the calculator body, and being arranged to be solar-powered.
An embodiment of the present invention will now be described by reference to the accompanying drawings in which: Figure 1 is a plan view of an embodiment of an electronic calculator according to the present invention; and Figure 2 is a diagrammatic cross-section of the electronic calculator of Figure 1, along the line A-A.
Referring to the drawings, an electronic calculator (1) includes a solid, transparent plastics body (2).
A front surface of the body (2) is provided with a shallow generally rectangular recess (3), in which recess (3) is received a laminar sheet (4) incorporating conventional electronic calculator elements.
Specifically, the laminar sheet (4) includes liquid crystal display (5), solar cells (6) and pressure sensitive key pads (7).
As may be seen from Figure 2, the transparent plastics body (2) of the electronic calculator (1) incorporates a magnifying lens (8), the convex front surface of which lens (8) extends out of the generally planar front surface of the electronic calculator (1). As has been indicated diagrammatically in Figure 2 the lens (8) is capable of magnifying an object located directly adjacent the back surface of the electronic calculator (1).
It will be appreciated that the electronic calculator of the present invention may be modified without departing from the spirit or scope of the present invention. The present invention includes within its scope all changes and modifications which would be apparent to one skilled in the art. Thus, for example, it will be clear that instead of employing a convex magnifying lens as shown in the drawings, the electronic calculator of the present invention could be provided with a Fresnel lens in an upper surface thereof.

Claims (7)

1. An electronic calculator having a generally planar front surface and including a lens portion to act as a magnifying glass, the lens portion extending out of the generally planar front surface of the calculator.
2. An electronic calculator according to claim 1, wherein the lens portion constituting the magnifying glass is inserted as a separate element into an aperature in the electronic calculator.
3. An electronic calculator according to Claim 1, wherein the lens portion constituting the magnifying glass is an integral part of a body of the calculator.
4. An electronic calculator according to claim 3, wherein the body of the calculator is moulded from a transparent plastics material, and the magnifying lens portion is formed in the body in the same moulding operation.
5. An electronic calculator according to any one of claims 1 to 4, wherein the lens portion is in the form of a convex lens.
6. An electronic calculator according to any one of the preceding claims, wherein the electronic calculator is provided with a generally planar back surface and the focal length of the magnifying lens is such that when the calculator is placed directly onto an object, a magnified image of the object can be seen through the magnifying lens.
7. An electronic calculator, substantially as hereinbefore described with reference to the accompanying drawings.
7. An electronic calculator according to any one of the preceding claims, which is provided with a transparent plastics body in which there is incorporated a magnifying glass, a printed circuit board and a micro-processor being incorporated into a separate sheet affixed to a front surface of the calculator body, and being arranged to be solar-powered.
8. An electronic calculator, substantially as hereinbefore described with reference to the accompanying drawings.
9. The features hereinbefore described, or their equivalents, in any novel selection.
Amendments to the claims have been filed as follows 1. An electronic calculator having a generally planar front surface and including a convex lens portion to act as a magnifying glass, the lens portion extending out of the generally planar front surface of the calculator, and the arrangement being such that the lens will produce a magnified image of an object located behind the calculator.
2. An electronic calculator according to claim 1, wherein the lens portion constituting the magnifying glass is inserted as a separate element into an aperature in the electronic calculator.
3. An electronic calculator according to Claim 1, wherein the lens portion constituting the magnifying glass is an integral part of a body of the calculator.
4. An electronic calculator according to claim 3, wherein the body of the calculator is moulded from a transparent plastics material, and the magnifying lens portion is formed in the body in the same moulding operation.
5. An electronic calculator according to any one of the preceding claims, wherein the electronic calculator is provided with a generally planar back surface and the focal length of the magnifying lens is such that when the calculator is placed directly onto an object, a magnified image of the object can be seen through the magnifying lens.
6. An electronic calculator according to any one of the preceding claims, which is provided with a transparent plastics body in which there is incorporated a magnifying glass, a printed circuit board and a micro-processor being incorporated into a separate sheet affixed to a front surface of the calculator body, and being arranged to be solar-powered.
GB8818270A 1988-08-01 1988-08-01 Electronic calculator with lens Withdrawn GB2222280A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8818270A GB2222280A (en) 1988-08-01 1988-08-01 Electronic calculator with lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8818270A GB2222280A (en) 1988-08-01 1988-08-01 Electronic calculator with lens

Publications (2)

Publication Number Publication Date
GB8818270D0 GB8818270D0 (en) 1988-09-07
GB2222280A true GB2222280A (en) 1990-02-28

Family

ID=10641445

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8818270A Withdrawn GB2222280A (en) 1988-08-01 1988-08-01 Electronic calculator with lens

Country Status (1)

Country Link
GB (1) GB2222280A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999056240A1 (en) * 1998-04-24 1999-11-04 Alan Finkelstein Method for making a wallet card with an integral magnifying lens
US6769618B1 (en) 1992-02-12 2004-08-03 Lenscard U.S., Llc Wallet card with a magnifying lens and light
US6817532B2 (en) 1992-02-12 2004-11-16 Lenscard U.S., Llc Wallet card with built-in light

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1431004A (en) * 1973-09-15 1976-04-07 Aviat Praezisionsmechanik Ind portable calculator
DE3728341A1 (en) * 1986-08-26 1988-03-10 Sharp Kk ELECTRONIC DEVICE, IN PARTICULAR POCKET CALCULATOR

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1431004A (en) * 1973-09-15 1976-04-07 Aviat Praezisionsmechanik Ind portable calculator
DE3728341A1 (en) * 1986-08-26 1988-03-10 Sharp Kk ELECTRONIC DEVICE, IN PARTICULAR POCKET CALCULATOR

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6176430B1 (en) 1992-02-12 2001-01-23 Lenscard U.S. Llc Method for making a wallet card with an integral magnifying lens
US6769618B1 (en) 1992-02-12 2004-08-03 Lenscard U.S., Llc Wallet card with a magnifying lens and light
US6817532B2 (en) 1992-02-12 2004-11-16 Lenscard U.S., Llc Wallet card with built-in light
WO1999056240A1 (en) * 1998-04-24 1999-11-04 Alan Finkelstein Method for making a wallet card with an integral magnifying lens
US6902116B2 (en) 2002-06-11 2005-06-07 Innovative Card Technologies, Inc. Method for making a financial transaction card with embedded electronic circuitry

Also Published As

Publication number Publication date
GB8818270D0 (en) 1988-09-07

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)