1. A method of ensuring anonymity between a requestor of an appraisal and an appraiser, the method comprising the steps of:
submitting a request for a valuation for a subject property via a computer terminal linked to a first database;
determining whether the valuation for the subject property is in the database;
linking the valuation and the subject property to a requester;
delivering the request for the valuation for the subject property to an appraiser; and
concealing an identity of the requestor from the appraiser.
2. The method according to claim 1, further comprising the step of:
sequentially tracking changes made to the valuation for the subject property; and
permitting a user to play back changes made to the valuation for the subject property subsequent to the sequentially tracking step.
3. A method of manipulating, storing, and controlling access to data, the method comprising the steps of:
storing information within a database to be accessed by a plurality of users;
simultaneously providing each of the plurality of users with one of a plurality of different access levels to the information;
recording a change to the information by one of the plurality of users;
displaying the change to the information to another of the plurality of users; and
determining whether the change is authorized; and
generating and displaying a warning if the change is not authorized.
4. The method according to claim 3, further comprising the step of:
comparing the information within the database to information contained within a third-party database.
5. The method according to claim 4, further comprising the step of, wherein the third-party database is a property-listing database including properties for sale and property-tax information.
6. The method according to claim 3, wherein a first level of the plurality of different access levels is a read-only level, a second level of the plurality of different access levels is a write level, and a third level of the plurality of different access levels is a read-write level.
7. A computer readable recording medium comprising computer readable codes to provide web-pages to manage information, comprising:
comparing first data input into a first field with second data contained in a database;
populating a second field if the first data matches the second data to yield third data;
storing the third data to permit display of the third data from a first user terminal;
generating a web-page based on the third data if displaying of the web-page is requested from the first user terminal; and
recording a change to the stored data made from the first user terminal.
8. The computer readable recording medium according to claim 7, wherein if the change conflicts with a rule, a warning is generated for display at a second user terminal.
9. The computer readable recording medium according to claim 7, further comprising:
providing a play-back feature to permit display of a sequence in which the first data, the second data, or the third data was input.
10. The computer readable recording medium according to claim 7, further comprising:
providing a play-back feature to selectively display of a sequence in which the first data, the second data, or the third data has been sequentially changed from a first state to a second state to a third state.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
What is claimed is:
1. A UV-absorbing filter which absorbs a UV component of incoming light to reduce an amount of the UV component of transmitted light, comprising:
a transparent UV-absorbing glass plate which has a first surface and a second surface and which contains a UV-absorbing substance;
a transparent first heat-resistant glass plate which faces said first surface;
a transparent second heat-resistant glass plate which faces said second surface;
a first distance piece which is made of heat-resistant resin and which is interposed between said first surface and said first heat-resistant glass plate, in the vicinity of an outer edge of said UV-absorbing glass plate, so as to form a first space between said first surface and said first heat-resistant glass plate; and
a second distance piece which is made of heat-resistant resin and which is interposed between said second surface and said second heat-resistant glass plate, in the vicinity of the outer edge of said UV-absorbing glass plate, so as to forma second space between said second surface and said second heat-resistant glass plate.
2. The UV-absorbing filter according to claim 1, wherein a major constituent of said UV-absorbing glass plate is potash-lime glass.
3. The UV-absorbing filter according to claim 1, wherein said UV-absorbing substance contained in said UV-absorbing glass plate is cerium.
4. The UV-absorbing filter according to claim 1, wherein said first heat-resistant glass plate and said second heat-resistant glass plate are made of borosilicate glass.
5. The UV-absorbing filter according to claim 1, wherein said first distance piece and said second distance piece are made of polyimide.
6. The UV-absorbing filter according to claim 1, wherein thicknesses of said first distance piece and said second distance piece are within a range of 100 m to 150 m.
7. The UV-absorbing filter according to claim 1, wherein the outer edge of said UV-absorbing glass plate, outer edges of said first and second distance pieces, and outer edges of said first and second heat-resistant glass plates are kept in alignment with one another.
8. The UV-absorbing filter according to claim 1,
wherein said first space is hermetically sealed by said UV-absorbing glass plate, said first heat-resistant glass plate, and said first distance piece; and
wherein said second space is hermetically sealed by said UV-absorbing glass plate, said second heat-resistant glass plate, and said second distance piece.
9. An optical apparatus comprising:
a lamp;
a reflector which reflects light emitted from said lamp; and
a UV-absorbing filter disposed on an optical path of the light emitted from said lamp and reflected by said reflector;
wherein said UV-absorbing filter includes:
a transparent UV-absorbing glass plate which has a first surface and a second surface and which contains a UV-absorbing substance;
a transparent first heat-resistant glass plate which faces said first surface;
a transparent second heat-resistant glass plate which faces said second surface;
a first distance piece which is made of heat-resistant resin and which is interposed between said first surface and said first heat-resistant glass plate, in the vicinity of an outer edge of said UV-absorbing glass plate, so as to form a first space between said first surface and said first heat-resistant glass plate; and
a second distance piece which is made of heat-resistant resin and which is interposed between said second surface and said second heat-resistant glass plate, in the vicinity of an outer edge of said UV-absorbing glass plate, so as to form a second space between said second surface and said second heat-resistant glass plate.
10. The optical apparatus according to claim 9,
wherein a reflecting surface of said reflector has the form of a paraboloid of revolution; and
wherein said lamp is disposed in such a manner that a center of light emission of said lamp is placed in the vicinity of a focal point of said reflector.
11. The optical apparatus according to claim 10, satisfying
1.1<Dd<2.1
where a symbol D denotes an opening diameter of said reflector and a symbol d denotes a diameter of said UV-absorbing filter.
12. The optical apparatus according to claim 9, further comprising:
a condenser lens system which converges the light which has passed said UV-absorbing filter; and
a body tube which holds said UV-absorbing filter and said condenser lens system.
13. The optical apparatus according to claim 9, further comprising a condenser lens system which converges the light which has passed said UV-absorbing filter, wherein said optical apparatus satisfies 5.1fp<fc<9.6fp,
where a symbol fp denotes a focal length of said reflector and a symbol fc denotes a composite focal length of said condenser lens system.
14. The optical apparatus according to claim 12, further comprising:
an optical pillar element;
a light valve;
a light transmitting optical system which provides a substantially conjugate relationship between an end of radiation of said optical pillar element and said light valve, said light transmitting optical system directing the light which is converged by said condenser lens system and passes said optical pillar element onto said light valve; and
a projection lens system which projects light which has been modulated by said light valve onto a screen.